| COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN Patent applications |
| Patent application number | Title | Published |
|---|
| 20160137008 | TIRE COMPRISING HIGH-CONTRAST MARKING - A tire made of rubber material including a sidewall and a marking protruding from this sidewall. The tire having a texture, which has a plurality of strands protruding from the sidewall, these strands being distributed at a density at least equal to five strands per square millimeter (mm | 05-19-2016 |
| 20160137004 | LOW-NOISE TREAD FOR HEAVY VEHICLES - Tread for a tire to equip a heavy vehicle, having:—a plurality of grooves of circumferential overall orientation and a plurality of grooves of oblique overall orientation intersecting the circumferential grooves to delimit blocks, these circumferential and transverse grooves forming a directional tread pattern, imposing a running direction on the tread, a dividing plane separating part of the pattern to the left and part of the pattern to the right,—the circumferential grooves delimiting at least three intermediate rows of blocks and two edge rows situated axially on the outside of the intermediate rows, wherein each block has a contact face forming part of the tread surface, a front face and a rear face and two lateral faces, the front face and the rear face intersecting the contact face along a leading edge Ai and a trailing edge Fi respectively, Ai coming into the contact patch during running before Fi of the same block when running in the running direction, wherein Ai of all the blocks are offset from one another in the circumferential direction such that: they successively enter the contact patch during running,—they enter the contact patch alternately on one side of the dividing plane and then on the other side of the same dividing plane in a back-and-forth arrangement. | 05-19-2016 |
| 20160137001 | Tire Comprising An Improved Tread - Tire having a predetermined direction of mounting on a vehicle. The tire tread ( | 05-19-2016 |
| 20160136909 | MOLDING ELEMENT COMPRISING CUTTING MEANS FOR MOLDING AND VULCANIZING A TIRE TREAD - A molding element of a mold for molding and vulcanizing a tire tread, this tread having a tread surface intended to come into contact with the ground when the tire is rolling. This molding element has a molding surface adapted to mold part of the tire tread surface and a blade adapted to mold a sipe or a groove in the tread. The molding element has two lamella positioned on either side of the blade at a distance from this blade, each lamella having a bulge at one extremity far away from the molding surface. Each lamella having cutting means extending from the bulge. | 05-19-2016 |
| 20160129652 | MOLDING ELEMENT COMPRISING CUTTING MEANS FOR MOLDING AND VULCANIZING A TIRE TREAD - A molding element of a mold for molding and vulcanizing a tire tread, this tread having a tread surface intended to come into contact with the ground when the tire is rolling. The molding element comprising a molding surface intended to mold part of the tire tread surface and a blade of a height intended to mold a sipe or a groove in the tread, this blade extending in a first direction of extension Y. The molding element has two cutting means positioned on either side of the blade at a certain distance from this blade. The molding element has a third cutting means of height extending in a second direction of extension X, this second direction of extension X making an angle α with the first direction Y which is between 75° and 105°. The height of the third cutting means is greater than the height of the blade. | 05-12-2016 |
| 20160129651 | MOLDING ELEMENT COMPRISING CUTTING MEANS FOR MOLDING AND VULCANIZING A TIRE TREAD - Molding element of a mold for molding and vulcanizing a tire tread, this tread having a tread surface intended to come into contact with the ground when the said tire is rolling. The molding element having a molding surface intended to mold part of the tire tread surface and a blade intended to mold a sipe or a groove in the tread. Indeed, the molding element has two cutting means positioned on either side of the blade at a certain distance from this blade, these cutting means having a plurality of pins. | 05-12-2016 |
| 20160121569 | MOLDING ELEMENT COMPRISING CUTTING MEANS FOR MOLDING AND VULCANIZING A TIRE TREAD AND METHODS OF MOLDING A TIRE TREAD USING THIS ELEMENT - Molding element for molding and vulcanizing a tire tread, having a tread surface contacting the ground when rolling, having a molding surface to mold part of the tread surface and a blade of length and of height H to mold a sipe or a groove in the tread, having a rounded end extending along its length in a direction of extension X. The molding element has two cutting means to cut a cover layer applied to a green form of the tire, positioned on either side of the blade at a certain distance from this blade, each cutting means having a cutting edge extending in the direction of extension, making an acute angle α in a sectional drawing perpendicular to direction of extension X able to cut the cover layer, the distance between this cutting edge and the molding surface being lower than the height H of the blade. | 05-05-2016 |
| 20160101582 | TREADS AND METHODS FOR MAKING A RETREADED TIRE - Particular embodiments include a retreaded tire and a method for retreading a tire. A method may include providing a tire tread having a thickness and a width with grooves extending into the thickness from a tread top side, and providing a tire carcass having an annular tread-receiving side. The method may include applying the tread to the tire carcass with a layer of bonding material arranged between the tread and the tire carcass, and evacuating a gas from between the tire carcass and the tread bottom side through an aperture extending through the tread thickness, the aperture being formed by piercing the tread thickness with a suctioning member arranged in operable communication with a vacuum source, and bonding the tread to the tire carcass. In particular embodiments, portions of the bottom side of the tread beneath the grooves are not bonded to the tire carcass or the bonding layer. | 04-14-2016 |
| 20160039161 | IMPROVED METHODS OF TIRE RETREADING USING PREASSEMBLED TREADS - The present invention includes methods for forming a retreaded tire. Steps include providing an annular tire carcass and providing a plurality of tread components each comprising an independent structure, which are assembled to form an assembled tire tread. The tread is subsequently bonded to the tire carcass to form a retreaded tire, the tire tread being arranged along an outer circumference of the annular tire carcass with a bonding layer between the tire tread and the tire carcass, the bonding layer comprising an uncured elastomeric material being cured during the step of bonding. The tire tread is assembled such that a bottom side of the tire tread is in removable attachment atop a base retention structure for subsequent application to the tire carcass. | 02-11-2016 |
| 20160031449 | METHODS AND APPARATUS FOR ACQUIRING, TRANSMITTING, AND STORING VEHICLE PERFORMANCE INFORMATION - The present invention includes the methods and the apparatus for acquiring, transmitting, and storing vehicle performance information. The methods of the present invention can be embodied in a wireless mobile computer device or non-transitory computer-readable medium. The embodiments include a processor, a memory storage device, a display screen, and a software application. The software application includes computer-readable instructions stored on the memory storage device and configured for execution by this process. These computer-readable instructions further include steps for acquiring instructions, storing instructions, displaying instructions, and transmitting instructions. | 02-04-2016 |
| 20160031274 | TIRE SPREADER FOR TIRE REPAIR - The present invention concerns methods and apparatus for spreading beads in a tire. Particular embodiments of such methods include securing at least a portion of a first bead of the tire and positioning a tire spreader within the central opening of the tire, the tire spreader having a bead engaging portion for engaging a portion of a second bead generally opposite the secured portion of the first bead. Such methods may further include automatically translating the bead engaging portion of the tire spreader generally in an axial direction of the tire to displace the engaged portion of the second bead a desired distance to increase the distance between the opposing beads to form a widened interior cavity opening. | 02-04-2016 |
| 20160001365 | PART OBTAINED BY SELECTIVE MELTING OF A POWDER COMPRISING A MAIN ELEMENT AND RIGID SECONDARY ELEMENTS - The invention relates to A part obtained by selective melting of a powder on a support plate, this part comprising a main element and rigid secondary elements, these secondary elements supporting the main element between a lower surface of this main element and the support plate. The Secondary elements are intended to be detached from the main element. The lower surface of the main element thus comprises a first surface portion and at least one second surface portion, and the first surface portion makes, with the support plate, an angle α1 of less than a predetermined value, and the second surface portion makes, with this support plate, an angle α2 greater than or equal to this predetermined value. The first surface portion is therefore entirely supported by the secondary elements and the second surface portion is partially supported by the secondary elements. The predetermined value is between 20° and 30°. | 01-07-2016 |
| 20150369704 | METHOD FOR CHARACTERIZING THE BEHAVIOUR OF A VEHICLE AND USE IN THE SELECTION OF THE TYRES OF THE VEHICLE - To characterize a behaviour of a vehicle, a subjective behavior test is conducted on a given configuration of a suspension device and a wheel disc of the vehicle to determine whether the vehicle's behaviour is acceptable. Modifications are made to the given configuration so as to sweep through pairs of values corresponding to a lateral force Fy and a lateral offset Dy of the wheel in straight-line running For each modified configuration of the suspension device and/or the wheel disc, the subjective behaviour test is conducted again. For each configuration of the suspension device and the wheel disc tested, a determination is made of a pair of values of the lateral force Fy and the lateral offset Dy of the wheel in straight-line running Areas Z of acceptable behavior of the vehicle in a plane Fy, Dy are determined. | 12-24-2015 |
| 20150369703 | TREAD CRACKING INSPECTION DEVICE - The present invention comprises methods and apparatus for inspecting a tread. Such methods include providing a tread having a top side and a bottom side, one of the top and bottom sides including a tread feature extending into the thickness of the tread. Such methods further include bending mechanically a transverse extent of the tread relative the tread thickness along a portion of the tread to be inspected about a bending member to form a bent portion of the tread, the portion of the tread to be inspected including the tread feature such that the step of bending expands the tread feature to further expose a depth of the tread feature within the thickness of the tread for inspection. Such further methods include constraining the tread on opposing sides of the portion of the tread to be inspected to maintain the bent portion of the tread in a bent arrangement. | 12-24-2015 |
| 20150367539 | METHODS AND APPARATUS FOR DEMOLDING TIRE TREADS - The invention includes methods and apparatus for demolding a tread from a mold. In particular embodiments, such methods include a step of demolding a first end of a tread from a mold to form a demolded portion of the tread, the tread extending lengthwise from the first end to a second end. A further step includes folding the tread such that at least a portion of the demolded portion is arranged overtop a portion of the tread remaining within the mold. Yet a further step includes applying lubricant to the tread to thereby lubricate relative translation between folded portions of the tread. A further step includes demolding additional portions of the tread by sliding at least a portion of the demolded portion along the portion of the tread remaining in the mold with the lubricant arranged between the demolded portion and the portion of the tread remaining within the mold. | 12-24-2015 |
| 20150360398 | APPARATUS AND METHOD FOR EXTRUDING AN ELASTOMER MIXTURE - Extrusion apparatus intended for manufacturing a continuous strip of profiled product (P), comprising a screw ( | 12-17-2015 |
| 20150360395 | TREAD CRACKING PREVENTION AND DE-MOLDING FORCE REDUCTION DOLLY - The invention include methods and apparatus for demolding a tread. The methods include arranging one or more rollers to extend across a transverse extent of a tread molding cavity and across an outer, exposed side of a tread. The one or more rollers are freely-rotatable and arranged to define a demolding path of the tread extending from the mold. The tread is demolded from the tread molding cavity along the demolding path such that the tread is initially directed outwardly from a molded position within the tread molding cavity at an initial angle less than 90 degrees from the molded position, the tread continuing along the demolding path until the tread is directed away from the molding cavity in a direction 90 degrees from the molded position at a perpendicular position located a distance from the molding cavity at least equal to approximately 80% of the tread thickness. | 12-17-2015 |
| 20150343851 | TREAD COMPRISING SCULPTED ELEMENTS COMPRISING A COVERING LAYER - A tread made of rubber material for a snow tire having a tread surface intended to be in contact with a road surface when the tire is being driven on, and provided with a plurality of cuts delimited by walls situated facing one another and forming lateral walls of raised elements of the tread. Each lateral wall intersects the tread surface to form an edge corner. At least one lateral wall of a raised element is formed partially or fully by a cover layer extending from the edge corner associated with this lateral wall, of a material having an elastic modulus higher than that of the rubber material of the tread. The raised element has a depression in its lateral wall, delimited by the cover layer. The raised element moreover has a width W and the depth P of the depression is at least equal to 10% of the width W of the element and less than or equal to 40% of this width W. Finally the volume of the depression is less than 10% of the volume of the raised element. | 12-03-2015 |
| 20150343846 | Tire Crown For Heavy Civil Engineering Vehicle - Tire comprising a crown reinforcement radially inside the tread, and a carcass reinforcement radially inside the crown reinforcement. The crown reinforcement comprises radially from the outside towards the inside: a protective reinforcement comprising two protective layers comprising elastic metal reinforcers which are parallel to one another within each layer and crossed from one layer to the next, forming respective angles A | 12-03-2015 |
| 20150343692 | METHOD FOR REGULATING AN EXTRUSION DEVICE AND EXTRUSION DEVICE USING SAID METHOD - Method for regulating an extrusion device for the manufacture of a continuous strip of profiled product (P) made of an elastomeric compound, comprising a screw rotationally driven in a fixed barrel the outlet of which comprises an extrusion die and at least one rotationally driven cylindrical roller, the rotational speed of the screw (Ω | 12-03-2015 |
| 20150337111 | SEMI-FINISHED PRODUCT AND TIRE COMPRISING A COMPOSITION CONTAINING A CORROSION INHIBITOR - A semi-finished product or tire comprises a metal reinforcing element embedded in a rubber composition comprising a compound of formula (I): | 11-26-2015 |
| 20150336431 | PNEUMATIC TIRE TREAD AND PNEUMATIC TIRE HAVING SAID TREAD - A pneumatic tire tread in which a reinforcing part is provided on frontal side walls of a block of a tire tread in order to improve the performance on snow and the performance on ice, and a pneumatic tire having such a tread, wherein angles T | 11-26-2015 |
| 20150336427 | TIRE WITH ASYMMETRIC CROWN - Tire formed of two halves separated by a median plane, comprising a crown comprising a crown reinforcement comprising a first reinforcing ply ( | 11-26-2015 |
| 20150336237 | PROFILED PLANE ABRADING TOOL FOR TIRE REPAIRS - The present invention includes methods and apparatus for controlling the abrasion of a tire surface. Particular embodiments provide an abrading tool for abrading a surface of a tire, the tool comprising means for rotating an abrading wheel, an abrading wheel rotatably attached to the means for rotating, and a depth guide secured to the means for rotating, wherein the depth guide includes a pair of freely rotatable, spaced apart guide wheels. Further embodiments include a depth guide configured for use with an abrading tool which includes a abrading wheel and a means for rotating the abrading wheel, the depth guide comprising a mounting member securable to the means for rotating and a pair of freely rotatable, spaced apart guide wheels rotatably attached to the mounting member. Particular embodiments further include a method for preparing a portion of a tire for repair. | 11-26-2015 |
| 20150328937 | WEAR INDICATOR FOR A CIVIL ENGINEERING TIRE - Tire for a civil engineering vehicle comprising a tread of high initial thickness E, this thickness corresponding to the thickness of material which can be worn during use, this tread comprising a smooth rolling surface, i.e. without any recesses, intended to come into contact with the ground during rolling, this tread being limited axially by lateral faces, these lateral faces being extended radially on the tire by sidewalls, this tread being provided with a wear indicator device to visually indicate a wear level of the said tread, this tire being such that the wear indicator device comprises, in combination, a plurality of grooves formed on at least one of the lateral faces of the tread and, for each groove, a visual index indicating a wear level corresponding to the percentage of the initial thickness E remaining to be worn. | 11-19-2015 |
| 20150328936 | TIRE TREADS WITH REDUCED UNDERTREAD THICKNESS - The invention comprises a tire tread, and tire, and a method of forming a tire having the tire tread. Particular embodiments of the tire tread comprise a tread thickness bounded by a top side and a bottom side and opposing lateral sides and a groove extending into the tread thickness from the tread top side and terminating within a thickness of the tread at a groove bottom, the groove having a width defined by a pair of opposing sides and the groove bottom being spaced from the bottom side of the tread by an undertread thickness. Such tire tread further includes a plurality of strengthening members forming protrusions extending into the groove from the groove bottom and from at least one side of the pair of opposing groove sides, the plurality of strengthening members being arranged along a length of the groove. | 11-19-2015 |
| 20150328853 | METHOD AND DEVICE FOR MANUFACTURING A GREEN TIRE - Method for manufacturing a green tire by winding a carcass reinforcement ply onto a tire-building drum on which a number of profiled elements are axially spaced apart one from one another and have a given thickness of which the meridian line has a curved profile are laid, wherein:
| 11-19-2015 |
| 20150322234 | TIRE COMPRISING A RUBBER COMPOSITION COMPRISING AN EPOXIDE POLYMER CROSSLINKED WITH A POLYCARBOXYLIC ACID - A tire comprises a rubber composition based on at least one polymer comprising epoxide functional groups, at least one reinforcing filler and a system for crosslinking the polymer. The system for crosslinking the polymer comprises a polycarboxylic acid of general formula (I): | 11-12-2015 |
| 20150322183 | HEAVY GOODS VEHICLE TIRE COMPRISING A TREAD BASED ON A MODIFIED POLYISOPRENE, PROCESS FOR PREPARING SAME - A heavy-duty vehicle tire comprising a tread consisting of a crosslinked rubber composition comprising a reinforcing filler of siliceous type and a synthetic polyisoprene modified by grafting with a compound comprising at least one group Q, and at least one group A, which are joined to one another by at least one and preferably one “spacer” group Sp, in which:
| 11-12-2015 |
| 20150316439 | HYDROGEN LEAKAGE DETECTOR - A hydrogen leakage detector includes a sensor and a microcontroller. The sensor is sensitive to a concentration of hydrogen in air. A sensitive unit of the sensor is exposed directly to an in situ concentration of the hydrogen. The microcontroller is programmed to generate and output an analog signal corresponding to concentration information, based on a concentration measurement from the sensor, and to generate and output an analog signal indicating a correct operation of the detector. | 11-05-2015 |
| 20150307756 | METHOD OF MANUFACTURING A SELF-SEALING COMPOSITION - Process for the manufacture of a self-sealing elastomer composition comprising at least one diene elastomer, one hydrocarbon resin with a given softening temperature and one liquid plasticizing agent, characterized in that it comprises the following successive stages:
| 10-29-2015 |
| 20150306915 | SNOW TIRE TREAD COMPRISING INCISIONS AND CAVITIES - A snow tire tread having a plurality of blocks separated by grooves and provided with sipe incisions dividing into several parts from a certain depth onwards, (complex sipes each having, when viewed in cross section, a rectilinear first part extending radially from the tread surface of the tread, and a second part extending the first part and comprising at least two branches each having an end. The tread has cavities each extending between the branches of a complex sipe and having a bottom situated at the same level as the ends of the branches. The cavities and the grooves of the tread are configured so that this tread has a voids surface ratio at the end of wear greater than or equal to 35%. Furthermore, the distance (D) between two branches of two adjacent complex sipes is at least equal to 2 mm. | 10-29-2015 |
| 20150299367 | PROCESS FOR RADICAL GRAFTING OF A DIENE ELASTOMER - A process for the radical grafting of a graft to a diene elastomer, comprising the following stages:
| 10-22-2015 |
| 20150298507 | TIRE TREAD WITH DIRECTIONAL DESIGN - A tread having a plurality of grooves formed on each half of the tread on each side of a midplane X-X′, each opening axially to the outside and extending axially towards the midplane X-X′ so that the plurality of grooves forms a first pattern in the overall shape of a V pointing in a groove direction Xr. The tread includes a plurality of sipes. From a certain degree of wear onwards, all or some of the sipes become enlarged forming cavities extending in an oblique direction forming a second pattern in the overall shape of a V pointing in a cavity direction Xc. Each of these cavities opens into just one of the grooves of the tread, the plurality of grooves forming, at this level of wear, the same first pattern. | 10-22-2015 |
| 20150298411 | METHODS AND APPARATUS FOR MAKING RETREADED TIRES - Embodiments of the invention include methods for supporting a recessed void during retreading operations. Such methods include the steps of providing a tread having a top side and a bottom side, the tread including a recessed void recessed below the top side of the tread. Such methods also include the step of arranging the tread around an outer circumference of the tire carcass in a desired position to form an assembled retreaded tire. Such methods further include the step of arranging a removable circumferential band around the assembled retreaded tire positioned over top the recessed void and the top side of the tread. Such methods further include the steps of placing a curing membrane around at least a portion of the tire and the circumferential band and curing the retreaded tire with the circumferential band contained within the curing membrane. | 10-22-2015 |
| 20150298409 | DEVICE FOR CUTTING AND TRANSFERRING A STRIP FOR THE ASSEMBLY OF A TIRE - Device for cutting and transferring a length of strip let off a continuous strip, comprising a first face and a second face to be laid on a rotary receiving surface and containing
| 10-22-2015 |
| 20150298332 | MACHINE AND METHOD FOR REDUCING PARTS OF TIRES TO PIECES AT THE END OF LIFE - Machine for breaking a part of a tire down into pieces, comprising, in combination:
| 10-22-2015 |
| 20150290981 | TIRE SIDEWALL MARKINGS REDUCING AERODYNAMIC DRAG - Tire for a passenger vehicle, including a crown portion on its exterior with a tread, extended laterally by sidewalls terminating in beads to contact with rim parts (J) on which the tire is mounted, each sidewall including an inner wall and an outer wall, at least one of the sidewalls includes a plurality of first sectors and second sectors, formed on the outer wall of a first sidewall portion between the crown portion the axially outermost points when this tire is mounted inflated, wherein the first sectors are completely without raised markings, i.e. raised markings of a height greater than 0.2 mm, whereas the second sectors are provided with raised markings, these raised markings having a height equal to at least 0.2 mm, wherein the first sectors each form an angle equal to at least 20°, and wherein the sum of the angles of said first sectors is equal to at least 120°. | 10-15-2015 |
| 20150290980 | TIRE TREAD WITH IMPROVED TREAD ELEMENT EDGE - Particular embodiments of the present invention comprise a tire tread having a length and a width. The tread further includes a thickness bounded by a top side for engaging a surface during tire operation and a bottom side. Moreover, the tread includes a top side void arranged along the top side of the tread and defining a wall extending depthwise within the tread thickness from the top side. Finally, the tread includes a projection extending outwardly from the wall and to a terminal end of the projection, the projection having a top side and a bottom side defining a thickness of the projection, the projection also having a length extending longitudinally along a length of the wall, the length of the wall extending perpendicular to a depthwise direction of the tread thickness. Further embodiments comprise a tire including a tire carcass and a tread as described in the preceding paragraph. | 10-15-2015 |
| 20150290976 | DEVICE FOR THE PRODUCTION OF TREAD OF A TIRE CASING - The device for producing a tire component by winding, comprises:
| 10-15-2015 |
| 20150290891 | METHOD OF RETREADING A TIRE - A tread for bonding to a tire carcass to form a retreaded tire having a length, a width, a top side and a bottom side. The tread also includes a central portion and a pair of wing portions extending laterally from the central portions. The top sides of each wing portion include one or more discontinuities having a longitudinal component and configured to resist deflection when subjected to a force from the bottom side and to deflect downwardly when subjected to a force from the top side. In particular embodiments, the one or more discontinuities are arranged within each wing portion are arranged within a thickened portion of each wing portion. | 10-15-2015 |
| 20150290841 | MACHINE AND METHOD FOR REMOVING BEADS FROM TIRES AT THE END OF LIFE - Machine for extracting a cord made of metal material from a sidewall of a tire, being part of the sidewall and defining a support structure of said tire, including: a frame; support means for the tire configured to support said tire resting on one sidewall in a loading zone; a hook for extracting said cord from the sidewall of the tire; means for manipulating said hook, configured to manipulate the hook with respect to the frame in an extraction direction between a position for engagement with said tire in the loading zone and a position for disengagement from said tire and extraction of said cord; a command and control unit to command said means for manipulating the hook,: | 10-15-2015 |
| 20150284548 | TIRE INNER LINER - A tire, the inner liner of which comprises a rubber composition based on at least predominantly a highly unsaturated diene elastomer, a reinforcing organic filler, graphite, chalk, a plasticizing hydrocarbon resin, the glass transition temperature, Tg, of which is greater than 20° C. and the softening point of which is less than 170° C. | 10-08-2015 |
| 20150283863 | EVOLVING TREAD - Tread for a heavy vehicle tire, having a wearable thickness of material PMU and having at least two main grooves of depth P | 10-08-2015 |
| 20150283854 | TIRE TREAD - Treads and tires having such treads having improved characteristics breaking the compromise between Wear and wet braking, such treads manufactured from a rubber composition that may include greater than 90 phr of an elastomer component selected from styrene-butadiene rubber (SBR), a polybutadiene or combinations thereof having, a glass transition temperature of between −100° C. and less than −50° C. and a plasticizing system. The plasticizing system may include, for example, between 5 phr and 120 phr of a plasticizing resin having a Tg of at least 25° C. and between 0 phr and 60 phr of a plasticizing liquid. Particular embodiments may include the elastomer component having a Tg of between −90° C. and −60° C. and/or may further have the elastomer component included in an amount of at least 95 phr. | 10-08-2015 |
| 20150283769 | MOLDING ELEMENT OF A MOLD FOR A TIRE, COMPRISING A PLURALITY OF HOLES - A molding element for a tire mold manufactured from a metallic powder fused together layer by layer, having a body, comprising a first surface intended to mold all or part of a tread surface of the tire and a second surface opposite to the first surface and intended to be in contact with another part of the mold, the thickness (E) of the body of the molding element being between 1 and 6 millimetres. The molding element has at least one cavity opening onto the second surface of this body. The molding element also has a plate positioned across the cavity and formed as one with the body of the molding element, being at the same level as the first surface of the body, and having at least one hole allowing air to pass between the first surface of the molding element and the second surface thereof. | 10-08-2015 |
| 20150274896 | METHOD FOR PREPARING A STATISTICAL COPOLYMER BASED ON DIENE MONOMERS AND CYCLIC CARBOSILANE MONOMERS - The present invention relates to a process for the preparation of a random copolymer based on diene monomers and on cyclic carbosilane monomers. This process is characterized in that it comprises a stage of copolymerization, in the presence of an anionic initiator in a reaction medium comprising a polar solvent, of at least one diene monomer and of a cyclic carbosilane monomer corresponding to the Formula I: | 10-01-2015 |
| 20150273955 | METHOD OF MANAGING DATA BETWEEN AN RFID MARKER CARRIED BY A TYRE AND A SENSOR CARRIED BY A RIM - This method can be used to manage data relating to an assembly ( | 10-01-2015 |
| 20150273950 | TREAD AND TIRE FOR HEAVY VEHICLE - Tread for heavy vehicle tire, this tread having a tread surface in the new state, this tread comprising a plurality of cuts opening onto the tread surface in the new state and at least one channel internal to the tread, this channel being intended to form a new groove after the tread has partially worn away, furthermore, each channel is extended radially towards the tread surface by a sipe of the same orientation as said channel and of width L | 10-01-2015 |
| 20150259516 | TIRE WITH IMPROVED GRIP ON WET GROUND - A tire comprising at least a rubber composition based on at least a blend of natural rubber, NR, or synthetic polyisoprene, and a styrene-butadiene copolymer, SBR, the SBR having a content greater than or equal to 20 parts per hundred parts of elastomer, phr, a reinforcing filler comprising carbon black, characterized in that the composition comprises a plasticizing resin having a glass transition temperature, Tg, greater than or equal to 20° C. and that the SBR has a Tg greater than or equal to −65° C. | 09-17-2015 |
| 20150258745 | PART FOR A MOLD FOR A TIRE, COMPRISING AN INSERT - A tire mold part having a body with a first surface intended to mold all or part of a tread surface, a second surface opposite the first and intended to contact another part of the mold, and a lateral face connecting the first surface and the second surface. The body includes a sintered part of a metallic powder fused together layer by layer, and a non-sintered part attached to the sintered part and in contact therewith in a contact zone, the sintered part forming the first surface and the non-sintered part forming the second surface. The sintered part has a thickness (E) of between 1 and 6 millimetres. The mold part further includes a cavity extending from the first surface into the part beyond the contact zone, without opening onto the second surface. The part comprises an insert placed in the cavity, at the same level as the first surface, and including a canal extending from the first surface and opening onto the contact zone the contact zone opening onto the lateral face. | 09-17-2015 |
| 20150251368 | METHOD FOR APPLYING TO THE INNER WALL OF A TIRE - A process for applying particles to the inner wall of a tire comprising two sidewalls, a crown provided radially externally with a tread, a carcass-type reinforcing structure and at least one crown reinforcement, the inner surface of the sidewalls and of the crown forming an inner wall, at least one portion of said inner wall being covered with at least one layer of self-sealing composition. | 09-10-2015 |
| 20150251367 | MOLD ELEMENT FOR VULCANIZING A TIRE TREAD - A mold element for vulcanizing all or part of a tire tread intended to accept studs for driving on ice. The mold element comprises a molding surface able to mold all or part of the tread surface of this tread. The mold element comprises an insert added into the mold element. The insert comprises an insert body intended to be fixed into the mold element, a rod intended for molding into the tread a cavity that is capable of accepting a stud, this rod being fixed removably to the insert body, marking means able to mold a pattern on the tread near the stud. The marking means are fixed removably to the insert body by fixing means. | 09-10-2015 |
| 20150251340 | VULCANIZING DEVICE WITH RADIALLY MOBILE SEGMENTS FOR A TIRE - Vulcanizing device with radially mobile segments comprising:
| 09-10-2015 |
| 20150246587 | TIRE COMPRISING A HIGH CONTRAST PATTERN COMPRISING A PLURALITY OF CAVITIES - A tire made of rubbery material comprising a sidewall and a pattern formed on this sidewall. This pattern comprises a plurality of openings and intermediate zones separating these openings. In order for the pattern to contrast with the sidewall, the openings occupy at least 60% of the pattern, these openings being distributed through the pattern at a density at least equal to five openings per square millimetre (mm | 09-03-2015 |
| 20150246586 | TREAD FOR PNEUMATIC TIRE - A pneumatic tire tread that maintains a good level of water drainage performance up to the final stage of wear of a tread part formed with a plurality of flexible fences which are disposed inside at least one main groove extending from the bottom surface of the main groove and obstructing at least 70% of the cross-sectional area of the main groove, the flexible fences comprising an inside portion having a connecting part which is connected to the main groove, and an outside portion which is radially outside a predetermined height D | 09-03-2015 |
| 20150239301 | TYRE DESIGNED TO BE ABLE TO RUN FLAT, COMPRISING A HYBRID CARCASS PLY - A tyre, which is designed to be able to run flat, includes a carcass reinforcement. The carcass reinforcement includes at least one reinforcing element. Each reinforcing element includes at least one multifilament plied strand made of aramid and at least one multifilament plied strand made of polyester. The at least one multifilament plied strand made of aramid and the at least one multifilament plied strand made of polyester are twisted together. | 08-27-2015 |
| 20150239296 | PNEUMATIC TIRE TREAD AND PNEUMATIC TIRE WITH SAID TREAD - A pneumatic tire tread having a reinforcing part on front surface side walls of a block to improve performance on ice while improving performance on snow, and a pneumatic tire having such a tread, wherein the difference G between a distance Rt measured from the tire axis of rotation to the outermost side of the upper surface of the block and a distance Re measured from the tire axis of rotation to two front surface edges is between 0.2 mm and 2.0 mm in a new article, the distance from the axis of rotation to any point in the region of the block upper surface excluding the front surface edge is greater than Re, and the distance between the portion at the outermost side of the reinforcing part measured in the radial direction and the front surface edge is no greater than 2.0 mm. | 08-27-2015 |
| 20150239192 | METHOD FOR CUTTING A STRIP OF TIRE REINFORCING PRODUCT COMPRISING WIRES AT AN ANGLE TO THE LONGITUDINAL DIRECTION OF THE PRODUCT - Method for cutting to length a strip formed of preassembled products comprising one or more rubber profiled elements superposed in part on a reinforcing ply made up of threads coated in rubber and making an angle (a) with the longitudinal direction of the strip, during which method the following steps are performed:
| 08-27-2015 |
| 20150232639 | RUBBER COMPOSITION WITH LOW RESIN CROSSLINKING - A tire component comprising a rubber composition having a highly unsaturated diene elastomer and a reinforcing filler with a methylene acceptor selected from 3-hydroxydiphenyl- amine, 4-hydroxydipheyl- amine or combinations thereof. Such rubber compositions further include a methylene donor, wherein a ratio of the methylene acceptor to the methylene donor may be greater than 10:1 or in other embodiments greater than 10:1 but no more than 50:1 or between 15:1 and 30:1. A method for manufacturing a tire component includes mixing together components of a rubber composition into a non-productive mix, the components including a highly unsaturated diene elastomer, a reinforcing filler and a methylene acceptor selected from 3-hydroxydiphenylamine, 4-hydroxydipheyl-amine or combinations thereof; and mixing a methylene donor and a vulcanizing agent into the non-productive mix to convert the non-productive mix to a productive mix. | 08-20-2015 |
| 20150224828 | Tire Having Diagonal Ribs With Trailing Edge Siping - A tire is provided having a tread region that includes continuous ribs which extend diagonally across the transverse direction of the tire. Partial sipes are provided at the trailing edges of the ribs. Full sipes can also be provided with the partial sipes. The ribs may form various patterns such as e.g., an S-shaped pattern, chevron pattern, and others. The tire provides improved traction performance over non-diagonal ribs while still providing desirable rolling resistance performance and control of irregular wear. | 08-13-2015 |
| 20150204755 | METHOD FOR DETERMINING THE AERODYNAMIC MOMENT OF RESISTANCE OF A WHEEL - A method for determining the aerodynamic moment of resistance M | 07-23-2015 |
| 20150202687 | MACHINE AND METHOD FOR POWDER-BASED ADDITIVE MANUFACTURING - Machine for the additive manufacture of a three-dimensional object by sintering or melting powder using a beam of energy acting on a layer of powder in a working zone, the said working zone being defined in the upper part
| 07-23-2015 |
| 20150191584 | PROCESS FOR PREPARING A SILICA-COVERED CARBON-BASED SPECIES - A process for preparing a carbon species partially or completely covered with silica, including:
| 07-09-2015 |
| 20150191555 | METHOD FOR MODIFYING UNSATURATED HYDROCARBON RESIN - A method for modifying a resin which comprises the reaction of an unsaturated resin consisting of more than 95% by mass of carbon and hydrogen atoms with a hypohalogenous compound in at least one solvent in the presence of a hydroxylated compound. This method results in the synthesis of new resins having oxygenated and halogenated functions. | 07-09-2015 |
| 20150185112 | METHOD FOR DETERMINING THE AERODYNAMIC MOMENT OF RESISTANCE OF A WHEEL - A method for determining the aerodynamic moment of resistance M | 07-02-2015 |
| 20150184054 | ELASTOMERIC COMPOSITION WITH IMPROVED THERMAL CONDUCTIVITY - A rubber composition based on at least one diene elastomer, a filler that contains carbon black and an inorganic filler, and a crosslinking system, wherein the inorganic filler content is greater than or equal to 5 parts by weight per hundred parts by weight of elastomer, phr, and represents at most 50% as a weight fraction of the whole of the total filler of the composition, and wherein the carbon black includes at least one acetylene-derived carbon black, with a content of greater than 3 phr, the amount of acetylene-derived carbon black representing more than 50% of the carbon black present in the composition as a weight fraction, and wherein the composition contains a plasticizing oil or a plasticizing resin with a total content of plasticizing oil and plasticizing resin of less than 30 phr. | 07-02-2015 |
| 20150183983 | RUBBER COMPOSITION COMPRISING AN EPOXY RESIN AND A POLYIMINE HARDENER - A rubber composition based on at least one diene elastomer, a reinforcing filler, a crosslinking system, an epoxy resin, at a content within a range extending from 1 to 20 phr, and a polyimine hardener, at a content within a range extending from 0.2 to 15 phr. | 07-02-2015 |
| 20150183277 | TIRE WITH IMPROVED BEAD - Tire comprising two beads comprising a bead wire and a carcass anchored around the two bead wires by turning back, a squat filler of small height, a sidewall stiffening reinforcement which is metallic, an outer strip of soft rubber compound, placed axially on the outside of the carcass and of the filler, and a protective layer of rubber compound, wherein the assembly formed by the stiffening reinforcement and the outer strip has a thickness EB(R) and the protective layer has a thickness EE(R), R being the distance with respect to the radially innermost point of the bead wire, and wherein the thicknesses EB(R) and EE(R) satisfy a set of geometric conditions. | 07-02-2015 |
| 20150183274 | TREAD FOR TIRE OF A DRIVE AXLE OF A HEAVY GOODS VEHICLE AND TIRE - Tread for a tire for the driven axle of a heavy goods vehicle, comprising a plurality of circumferential grooves delimiting at least three ribs each having a height and a width measured in the axial direction, axially delimited by two edge rows, each rib having a plurality of sipes able to close at least in part as they enter the contact patch, and opening onto each lateral face of the rib to form two edge corners and having a depth at least equal to 50% of the height of the rib, these sipes in pairs delimiting an elementary rib volume and an elementary contact surface, wherein each elementary volume delimited by two sipes of one and the same rib has a void volume opening on the contact face in the new state, having a total area on the tread surface at least equal to 0.4% and at most equal to 1.5% of the area of the elementary contact surface, having a depth at least equal to half the depth of the grooves, and determined such that it remains open as it passes through the contact patch so as to allow any liquid present on the road surface to be picked up. | 07-02-2015 |
| 20150183269 | FOLDABLE TIRE, FOLDING METHOD AND USE - A collapsible tire for a motorized two-wheeled vehicle, containing a carcass reinforcement possibly surmounted radially from the outside by an inextensible crown reinforcement, itself radially on the inside of a tread, the reinforcements each containing at least one layer of reinforcing elements, the tread connected to two beads by two sidewalls, the beads intended to come into contact with a rim, each bead containing at least one circumferential reinforcing element called a bead wire, the bead wire defining a mean line forming a substantially circular closed curve in a circumferential plane. The bead wire is flexible and contains at least one concave part P | 07-02-2015 |
| 20150174953 | SPOKE FOR A TIRE WITH OPTIMIZED THICKNESS FOR IMPROVED DURABILITY - The present invention provides spoke geometry for a non-pneumatic tire that is less prone to fatigue when used. In particular, the spoke geometry is provided with an optimized thickness profile over the length of the spoke. This optimization results in a reduction in the peak strain energy density levels in the spoke, thereby reducing the likelihood of crack initiation and propagation which in turn enhances the durability of the spoke and tire. | 06-25-2015 |
| 20150174842 | METHOD FOR PRODUCING A FLEXIBLE WALL IN A GROOVE OF A TREAD FOR A TIRE - Method of manufacturing a tread of a tire made of rubber compound, the said tread comprising a tread surface, at least one groove having a bottom wall and two lateral walls extending from the bottom wall towards the tread surface, and at least one flexible wall arranged in the said groove in such a way as to be able to flex as liquid flows, the said method including molding the tread with at least one groove and at least one connecting element of a thickness equal to that of the wall which element is arranged inside the groove transversely to the longitudinal axis thereof, so that, after vulcanizing, the connecting element connects the lateral walls to the bottom wall over a given depth from the latter cutting the said connecting element at its junction with each of the lateral walls of the groove so as to obtain the flexible wall. | 06-25-2015 |
| 20150158960 | PROCESS FOR CONTINUOUS SYTNTHESIS OF A DIENE ELASTOMER - A process for the continuous synthesis of diene elastomers with a high degree of conversion, including simultaneously:
| 06-11-2015 |
| 20150158338 | TIRE COMPRISING A TREAD FORMED BY MULTIPLE ELASTOMER BLENDS - A tire with a radial carcass reinforcement, having a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, the tread containing at least two layers of blended elastomeric compounds that are radially superposed and have a voids ratio that is lower in the central part than at the axially outer parts. A first layer of blended elastomeric compounds of the tread is made up of a first blended elastomeric compound forming a part extending at least into the region of the equatorial plane and of at least two axially outer parts formed of a second blended elastomeric compound, the first blended elastomeric compound having a macro dispersion Z-value higher than 65 and a maximum tan(δ) value, denoted tan(δ)max, lower than 0.150, and the elongation at break in a tearability test of the second blended elastomeric compound at 100° C. having a value at least 10% higher than that of the elongation at break of the first blended elastomeric compound in a tearability test at 100° C. | 06-11-2015 |
| 20150151580 | TIRE COMPRISING A TREAD FORMED BY MULTIPLE ELASTOMER BLENDS - A tire of which the tread contains at least two layers of blended elastomeric compounds that are radially superposed and has a voids ratio that is lower in the central part than at the axially outer parts thereof. A first layer of blended elastomeric compounds of the tread is made up of a first blended elastomeric compound forming a central part, and of two outer parts formed of a second blended compound, the first blended compound having a Z-value higher than 55, the first blended compound and the second blended compound having a tan(δ)max value lower than 0.110, the modulus G* of the second blended elastomeric compound having a value at least 10% higher than that of the modulus G* of the first blended elastomeric compound, a second layer of the tread, radially the outermost, being made up of a third blended compound of which the modulus G* has a value at least 10% higher than that of the modulus G* of the first blended elastomeric compound and the elongation at break of the third blended compound having a value at least 10% higher than those of the elongations at break of the first and second blended compounds. | 06-04-2015 |
| 20150151579 | TIRE COMPRISING A TREAD FORMED BY MULTIPLE ELASTOMER BLENDS - A tire with a radial carcass reinforcement, having a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, the tread having at least two layers of blended elastomeric compounds that are radially superposed and have a voids ratio that is lower in the central part than at the axially outer parts. A first layer of blended elastomeric compounds of the tread is made up of a first blended elastomeric compound forming a part extending at least into the region of the equatorial plane and of at least two axially outer parts formed of a second blended elastomeric compound, the first blended elastomeric compound having a macro dispersion Z-value higher than 65 and a maximum tan(δ) value, denoted tan(δ)max, lower than 0.120, and the complex dynamic shear modulus G* 1% at 100° C. of the second blended elastomeric compound having a value at least 10% higher than that of the complex dynamic shear modulus G* 1% at 100° C. of the first blended elastomeric compound. | 06-04-2015 |
| 20150139849 | MACHINE AND METHOD FOR POWDER-BASED ADDITIVE MANUFACTURING - acting on a powder layer in a working zone, containing a device for layering said powder, said device including:
| 05-21-2015 |
| 20150136289 | ANTI-NOISE DEVICE FOR TIRE - Tread comprising at least one groove delimited by two walls facing one another, joined together by a groove bottom, this groove having a plurality of closure devices, each made up of at least one flexible blade (of thickness E suited to allowing flexing under the effect of a circulation of liquid in the groove, and secured to a wall delimiting the groove, each flexible blade bounded by a bottom wall facing the bottom of the groove, an end wall facing the other wall of the groove and a contact wall to come into contact with the roadway and lateral walls spaced apart from one another by a distance equal to the thickness E of the blade, the bottom wall of each flexible blade having a notch in the vicinity of the wall to which the blade is attached, wherein each flexible blade is connected to one of the walls delimiting the groove inside a housing (formed on the wall bearing the blade, each housing having a depth suited to containing in its entirety a notch. | 05-21-2015 |
| 20150136287 | TIRE COMPRISING A TREAD FORMED BY MULTIPLE ELASTOMER BLENDS - A tire with a radial carcass reinforcement, having a crown reinforcement, itself capped radially by a tread connected to two beads by two sidewalls, the tread having at least two layers of blended elastomeric compounds that are radially superposed and have a voids ratio that is lower in the central part than at the axially outer parts. A first layer of blended elastomeric compounds of the tread is made up of a first blended elastomeric compound forming a part extending at least into the region of the equatorial plane and of at least two axially outer parts formed of a second blended elastomeric compound, the first blended elastomeric compound having a macro dispersion Z-value higher than 65 and a maximum tan(δ) value, denoted tan(δ)max, lower than 0.150, and the second blended elastomeric compound having a maximum tan(δ) value, denoted tan(δ)max, lower than 0.130. | 05-21-2015 |
| 20150129097 | RECESSED REMOVABLE TREAD PORTIONS FOR RETREADED TIRES - Particular embodiments of the invention comprise multi-wear layer tire treads for retreaded tires and methods of forming retreaded tires. In particular embodiments, a multi-wear layer tire tread includes a thickness bounded depth wise by a ground-engaging top side and a bottom side, the thickness extending laterally between opposing side edges and longitudinally in a lengthwise direction of the tread. Such tire tread may further include a removable tread portion recessed from the top side to form a subsequent wear layer, the removable tread portion extending into the tread thickness from the bottom side and terminating a distance below the top side, the removable portion having a width arranged between opposing interior surfaces of the tread recessed below the top side. | 05-14-2015 |
| 20150125241 | METHOD FOR MANUFACTURING TIRE COVERS - In the method for manufacturing tires:
| 05-07-2015 |
| 20150119492 | TIRE TREAD - A tire, the tread of which comprises a rubber composition comprising at least:
| 04-30-2015 |
| 20150115499 | SUMMIT DIAGONAL MATRIX FOR TIRE MANUFACTURE - A standardization system for the manufacture of tires is provided. The same size tire components can be used in the summit of tires having different sizes i.e., tires having different section widths, sidewall heights, and/or aspect ratios. A matrix of tire sizes can be associated with one or more tire summit parameters. The matrix can be used for the manufacture of tires having one or more standardized components by holding substantially constant the value of one or more tire summit parameters across a diagonal of the matrix. | 04-30-2015 |
| 20150115497 | PREPARING A PRECURED TREAD FOR APPLICATION TO A TIRE CARCASS - The present invention comprises methods and apparatus for preparing a tread for application to a tire carcass by abrading a bottom side of the tread. In particular, the tread has a thickness extending depthwise between a top side and a bottom side of the tread. The tread thickness extends in a longitudinal direction and in a lateral direction between opposing sides of the tread. The tread further includes a void extending within the tread thickness and an extension of the tread extending across a width of the void and as a portion protruding outwardly from the tread bottom side by a distance. Such methods include stretching the tread such that the width of the tread void increases and the distance by which the extension protrudes from the bottom side decreases. Such methods further include abrading the bottom side of the tread. | 04-30-2015 |
| 20150114541 | TIRE COMPRISING A CARCASS REINFORCEMENT OF WHICH THE REINFORCING ELEMENTS ARE HIGHLY PENETRATED - A tire with a radial carcass reinforcement, wherein the reinforcing elements of at least one layer of the carcass reinforcement are non-wrapped three-layered metal cords with an unsaturated external layer which in what is referred to as the permeability test return a mean flow rate less than 4 cm | 04-30-2015 |
| 20150114534 | TIRE WITH A RADIAL OR CROSS-PLY CARCASS - Tire having at least one carcass reinforcement, a tread, a belt reinforcer having a first and a second end and:
| 04-30-2015 |
| 20150107734 | Method and Tire for Improved Uniformity and Endurance of Aggressive Tread Designs Using Layering Technique - A tire having aggressive tread features with improvements in uniformity that can also improve endurance is provided along with a method and apparatus for manufacturing such a tire. The tire and its manner of manufacture can achieve a reduction or elimination of certain non-uniformities that can occur during the molding of large tread blocks. The reduction or removal of these non-uniformities can improve temperature performance to provide increased tire endurance. The present invention further relates to a tire made using such a method and that may have layers of different material properties for different tire performances. In one embodiment, a layering technique that creates tread blocks or lugs in close proximity to each other and that can run continuously is provided. | 04-23-2015 |
| 20150105491 | Formation of Latex Coagulum Composite for Tire Composition - A tire comprising a rubber composition based on at least an elastomer composite formed by the method of flowing a coagulating mixture of a first elastomer latex comprising a first elastomer and a particulate filler slurry along a conduit; and introducing a second elastomer latex comprising a second elastomer into the flow of the coagulating mixture. | 04-16-2015 |
| 20150096658 | TIRE COMPRISING A WIDENED TREAD - A tire with a radial carcass reinforcement, wherein the ratio of the axial width L of the tread to the maximum axial width S of the tire is strictly greater than 0.85 and the reinforcing elements of at least one layer of the carcass reinforcement are non-wrapped metal cords with saturated layers, at least one inner layer being sheathed with a layer made up of a polymeric composition such as a composition of non-crosslinkable, crosslinkable or crosslinked rubber, preferably based on at least one diene elastomer. | 04-09-2015 |
| 20150083306 | TIRE TREADS WITH REDUCED UNDERTREAD THICKNESS - The invention comprises a tire tread, and tire, and a method of forming a tire having the tire tread. Particular embodiments of the tire tread have a tread thickness bounded by a top side and a bottom side, and a groove extending into the tread thickness from the top side and terminating within the tread thickness at a groove bottom. A thickness of the tread extends from the groove bottom to a protruding portion of the bottom side of the tread below the groove bottom such that portions of the bottom side adjacent the protruding portion are recessed within the tread thickness. Such tire tread further includes a plurality of strengthening members forming protrusions extending into the groove from the groove bottom and from at least one side of the pair of opposing groove sides, the plurality of strengthening members being arranged along a length of the groove. | 03-26-2015 |
| 20150059943 | HEAVY GOODS VEHICLE DRIVEN AXLE TIRE TREAD - Tread having a maximum thickness PMU of material to be worn away during running, having: at least two grooves of circumferential overall orientation delimiting at least one intermediate row and two edge rows, a plurality of cuts of transverse overall orientation on each intermediate and edge row, representing, in the new state, a void of total volume Vco open onto the tread surface, at most equal to 13% of the total volume of the tread, channels or cavities extending under the tread surface in the new state, adapted to form new grooves after the tread has partially worn away, and having, in the initial state, a total volume Vcc at least equal to 30% of the total void volume Vco in the new state, intermediate rows of suffix (i) and edge rows of suffix (e) each provided with a plurality of cuts of transverse or oblique orientation distributed over each row evenly or near-evenly with a mean pitch of Pi and Pe respectively, having mean depths, Di and De respectively, which are at least equal to 20% of the thickness PMU and at most equal to thickness PMU, wherein:
| 03-05-2015 |
| 20150043780 | METHOD FOR DETERMINING ELEMENTS IN RELIEF ON THE SURFACE OF A TYRE - A method of determining relief elements on a tyre surface includes capturing a three-dimensional image of the surface and assigning to each pixel (i, j) of the image a grey-level value proportional to a topographic elevation of a point corresponding to the pixel, so as to obtain a starting image (f). The method also includes transforming the starting image (f) by a first top-hat operation, with aid of a first structuring element, so as to obtain an image (f | 02-12-2015 |
| 20150027605 | THICK TREAD FOR CIVIL ENGINEERING TIRES - Tread for civil engineering tires, having blocks in the central part and edge ribs, each block having a width Ltb measured parallel to transverse edges and a width Lcb measured along the circumferential direction, wherein each edge rib has a plurality of recesses, forming housings, with a transverse width Lte and a circumferential length Lce, delimited over the whole of its height He by transversely orientated walls and a circumferentially orientated wall, having a suitable geometry to receive at least an end part of a block of the central region with a circumferential clearance Ac in the circumferential direction and a transverse clearance At in the transverse or axial direction, these clearances determined to ensure that, in the usual running conditions of the tire the end part of said block of the central region is at least partially in contact with at least one of the transversely orientated walls of each recess, thereby preventing each of the blocks, having its ends locked in said recesses, from coming into contact with the neighbouring blocks of the central row. | 01-29-2015 |
| 20150020945 | TIRE ASSEMBLY HAVING AN IMPROVED BEAD AND A MOUNTING RIM - Assembly comprising a tire and a mounting rim, the tire comprising two beads each comprising at least one annular reinforcing structure and a carcass reinforcement anchored in the two beads by a turn-up, each bead comprising a filler of a rubber composition extending radially a radial distance DBE from the radially innermost point of the annular reinforcing structure, DBE being less than or equal to 10% of the radial height H of the tire, at least one sidewall further comprising a stiffening reinforcement of metallic reinforcing elements oriented at an angle less than or equal to 10 degrees to the circumferential direction, and positioned such that the distance DAE between the radially innermost point of the annular reinforcing structure and the radially outer end of the stiffening reinforcement is greater than or equal to 20% and less than or equal to 40% of H and that the distance DAI between the radially inner point of the annular reinforcing structure and the radially inner end of the stiffening reinforcement is less than or equal to 20% of H. | 01-22-2015 |
| 20150017277 | APPARATUS FOR CASTING A NON-PNEUMATIC TIRE HAVING A FLOATING MOLD ALIGNMENT MECHANISM - This invention relates generally to an apparatus for rotationally casting a portion of a tire, and, more specifically, to an apparatus that has a floating alignment mechanism that allows a portion of a mold to move in the radial direction of the tire, which it, at least; partially forms, allowing the molding apparatus to omit, the use of tie bars. The mechanism may comprise two set of needle roller bearings that are orthogonally arranged to allow radial movement of a portion of a mold. | 01-15-2015 |
| 20150013867 | TIRE CONSTRUCTION WITH FLATTENED SUMMIT AND CIRCUMFERENTIAL REINFORCEMENT - A tire constructed with a plurality of reinforcement belts is provided. At least one of the reinforcement belts extends along the axial width of the tire summit and is constructed according to an equilibrium curve that is flat throughout the summit. The reinforcement belts include cable reinforcements that are substantially parallel to the equatorial plane. Substantial reductions in the tension experienced by the cables can be achieved to provide, as a result, improvements in e.g., tread wear. | 01-15-2015 |
| 20140373999 | TIRE OPERATING SURFACE FOR TIRE TESTING ROAD WHEEL - Particular embodiments of the invention include a method of forming a tire operating surface for a road wheel. Such methods include: providing a longitudinally convex bonding surface for receiving a textured tire operating surface; applying adhesive material of a pre-determined thickness along the longitudinally convex bonding surface to form a coated bonding surface comprising a longitudinally convex layer of adhesive material arranged along the bonding surface; and, arranging a single layer of aggregate material along a retention surface. The methods also include placing a width of the longitudinally convex layer of adhesive material of the coated bonding surface into engagement with the single layer of aggregate and rotating the coated bonding surface in a lengthwise direction relative the retention surface until a length of the convex layer of adhesive material has engaged the single layer of aggregate. | 12-25-2014 |
| 20140371346 | LOW RIGIDITY TIRE TREAD - Treads and tires having such treads having improved characteristics that break the compromise between wet/dry traction and wear. Such treads may comprise a rubber composition based upon a cross-linkable elastomer composition having a highly unsaturated diene elastomer and between 100 phr and 160 phr of an inorganic reinforcing filler. Embodiments may further include an effective amount of a plasticizing system that includes a plasticizing resin having a glass transition temperature (Tg) of at least 25° C. and a plasticizing liquid. The effective amount of the plasticizer system may be between 60 phr and 130 phr for particular embodiments and is effective in the amount for providing the rubber composition with a shear modulus G* measured at 60° C. of between 0.4 MPa and 1 MPa, Particular embodiments may further include the rubber composition forming the tire tread, to have a glass transition temperature of between −30° C. and 0° C. | 12-18-2014 |
| 20140371345 | RUBBER TIRE COMPOSITION COMPRISING AN AZO-SILANE COUPLING AGENT - A tire rubber composition based on at least one diene elastomer, an inorganic filler as reinforcing filler, a coupling agent providing the bonding between the inorganic filler and the diene elastomer, wherein the coupling agent is an azosilane compound of formula (I): (G | 12-18-2014 |
| 20140367026 | KIT AND METHOD FOR THE TEMPORARY ATTACHMENT OF AN ELECTRONIC DEVICE TO A SUPPORT OF A TYRE CASING - A kit, which is usable for temporary attachment of an electronic device to a support of a tyre casing, includes: an attachment member and a separation element. The attachment member includes an adhesive mass for attaching the electronic device to the support. The separation element, which separates the adhesive mass from the support, is able to adhere to the adhesive mass. An adhesion between the adhesive mass and the separation element exceeds an adhesion between the adhesive mass and the support as a function of a variation of at least one parameter of the adhesive mass. | 12-18-2014 |
| 20140367013 | CROWN FOR AN AIRCRAFT TIRE - A tire for an aeroplane and, in particular, to the crown of a tire for an aeroplane, having reduced dimensions and mass of the pieces of tread in the event of accidental tire tread separation, without the use of additional devices external to the tire and therefore without penalizing the payload of the aeroplane, having a tread intended to come into contact with the ground via a tread surface, and extending radially between a bottom surface and the tread surface, the tread comprising at least two circumferential ribs adjacent to at least one circumferential groove, each circumferential rib extending radially between the bottom surface and the tread surface, axially between two lateral faces and circumferentially around the entire periphery of the tire, wherein the tread comprises rows of cavities formed in at least one circumferential rib and opening onto the tread surface, the rows of cavities, which are parallel to one another, are inclined with respect to the circumferential direction (XX′) of the tire at an angle (i) at least equal to 45°, and the rows of cavities are distributed circumferentially over at least part of the periphery of the tire with a circumferential spacing (p) at least equal to 0.02 times and at most equal to 0.12 times the circumferential length of the periphery of the tire. | 12-18-2014 |
| 20140367011 | PROJECTING FEATURES MOLDED WITHIN SUBMERGED TREAD VOIDS - The present invention concerns tire treads having projecting features comprising wear indicators, stone ejectors, and/or noise suppressors arranged within voids submerged below the top, outer side of a tread. Particular embodiments of the invention provide a tire tread having a submerged void extending into to the tread thickness from the bottom side of the tread to a terminal location spaced below the tread top side, the top side forming a ground-engaging side of the tread. Such embodiments further include a plurality of projecting features arranged within the submerged void below the terminal location of the submerged void, the plurality of projecting features being further arranged in a spaced arrangement along a length of the submerged void, each of the plurality of projecting features extending partially across a width of the submerged void, which may comprise a groove, for example. The invention includes methods of forming the tread and a treaded tire. | 12-18-2014 |
| 20140360656 | PROCESS AND EQUIPMENT FOR PRODUCING A RUBBER FOR A TIRE COMPRISING A KNEADING STEP - In the process for producing a rubber for manufacturing a tire:
| 12-11-2014 |
| 20140360647 | TIRE WITH IMPROVED BEADS - Tire having two beads each comprising an annular reinforcing structure and a carcass reinforcement which is anchored in the two beads by being wrapped around the annular reinforcing structure so as to form, in each bead, a main portion and a wrapped-around portion, wherein each bead comprises an apex situated between the main portion and the wrapped-around portion of the carcass reinforcement, and an outer strip positioned axially on the outside of the carcass reinforcement and of the apex, the apex and the outer strip being made of a rubber compound that has an elastic modulus G′ less than or equal to 15 MPa and a viscous modulus G″ such that: G″ [MPa]≦0.2·G′ [MPa]−0.2 MPa, the elastic and viscous moduli being measured at 23° C.; wherein the entity formed by the apex and the outer strip has a thickness E(r), the thickness E(r) varying such that, in the range of distances r comprised between 25 and 45% of the height H of the tire, the variation in thickness | 12-11-2014 |
| 20140360646 | TIRE COMPRISING CARCASS REINFORCEMENT CORDS OF LOW PERMEABILITY, AND TEXTILE THREADS ASSOCIATED WITH THE CARCASS REINFORCEMENT - The invention relates to a tire having a radial carcass reinforcement, composed of at least one layer of metal reinforcing elements, the said tire comprising a crown reinforcement, itself topped radially by a tread, the said tread being joined to two beads via two sidewalls. | 12-11-2014 |
| 20140356469 | SELF-LOCKING MOLD INCLUDING A FORCE-LIMITING MEANS - Segmented mold for molding and vulcanizing a tire of given diameter, having shells and segments collaborating to withstand the internal pressure and remain in the closed position without assistance from additional components, in which mold each segment comprises at its lateral edges a projection extending radially inwards, which projection is equipped with a lip extending axially towards the inside of the mold and having a frustoconical surface inclined at an angle α with respect to the axis (XX′) of the mold such that the extensions of the line of each frustoconical surface on a meridian plane intersect on the radially internal side of the segment concerned, and in which mold each shell comprises a projection extending radially outwards and provided with a lip having a frustoconical surface inclined by the same angle α with respect to the axis XX′ of the mold, wherein the mold contains force-limiting means made up of a stop and of a housing positioned respectively in the radial extension of each of the projections and each having a bearing surface, the bearing surfaces being intended to come into contact with one another when the internal pressure in the mold exceeds a given threshold. | 12-04-2014 |
| 20140352865 | TIRE COMPRISING CARCASS REINFORCEMENT CABLES HAVING LOW PERVIOUSNESS, AND TEXTILE THREADS ASSOCIATED WITH THE CARCASS REINFORCEMENT - A tire having a radial carcass reinforcement, composed of at least one layer of metal reinforcing elements, the said tire comprising a crown reinforcement, itself topped radially by a tread, the said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are cords exhibiting, in the “permeability” test, a flow rate of less than 20 cm | 12-04-2014 |
| 20140352863 | COMBINATION OF A HEAVY GOODS VEHICLE TIRE STRUCURE WITH A TREAD PATTERN - Tire for a heavy goods vehicle, comprising a crown reinforcement, and, radially outside this crown reinforcement, a tread having a total thickness PMU of material intended to become worn during running, the crown reinforcement being formed by at least two working plies and a protection ply positioned radially outside the working plies and radially inside the tread, the narrowest working ply having a width in the range from 70% to 90% of the width W of the tread, the protection ply having a width at most equal to 70% of the width of the narrowest working ply, the tread comprising grooves only in the part radially outside the protection ply, each circumferentially orientated groove having a depth at least equal to 75% of the maximum thickness intended to become worn PMU. This tread comprises, axially between an axial end of the narrowest working ply and an axial end of the protection ply located on the same side of the equatorial plane, a channel that is generally circumferentially orientated and runs all the way around the tire, this channel being formed in such a way that the minimum distances between this channel and the working plies and between this channel and the protection ply are different from zero. | 12-04-2014 |
| 20140350138 | RUBBER COMPOSITION - Rubber composition based on at least one reinforcing filler comprising a reinforcing inorganic filler, one plasticizing system composed of at least one plasticizing hydrocarbon resin and one liquid plasticizer, one elastomer which is a copolymer at least of isoprene and styrene bearing at least one SiOR functional group, R being hydrogen or a C | 11-27-2014 |
| 20140348968 | MOLDING ELEMENT COMPRISING CUTTING MEANS FOR MOLDING AND VULCANIZING A TIRE TREAD - A molding element for molding and vulcanizing a tire tread. This tread comprises a tread surface intended to come into contact with the ground when this tire is running. This molding element comprises a molding surface intended to mold part of the tire tread surface and a blade of length L and of height Hc intended to mold a sipe or a groove in the tread, the blade comprising a rounded end extending along the length of the blade in a direction of extension X. The molding element comprises two cutting means positioned on either side of the blade at a certain distance from this blade. Each cutting means comprises, at one end, an alternation of peaks and troughs extending in this direction of extension X. The distance of these peaks in relation to the molding surface is greater than or equal to the height Hc of the blade. | 11-27-2014 |
| 20140347377 | TREAD WITH ULTRA EFFICIENT VULCANIZATION SYSTEM - A global composition system is described. In one or more implementations, the global composition system may be configured to perform rendering for a plurality of applications. For example, the global composition system may be configured to expose one or more application programming interfaces (APIs) that are accessible to the applications. The APIs may then be used to cause a single composition engine to perform the rendering for the plurality of applications. The use of a single composition engine may be used to support a variety of different functionality, such as to perform efficient rendering by knowing what elements are provided by each of the applications and how those items relate for rendering to a display device. | 11-27-2014 |
| 20140345775 | TIRE COMPRISING CABLES FOR REINFORCING THE CASING HAVING LOW PERVIOUSNESS, AND TEXTILE THREADS ASSOCIATED WITH THE CASING REINFORCEMENT - A tire having a radial carcass reinforcement, composed of at least one layer of metal reinforcing elements, and having a crown reinforcement, itself topped radially by a tread, the said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are cords exhibiting, in the “permeability” test, a flow rate of less than 20 cm | 11-27-2014 |
| 20140345774 | TIRE COMPRISING CARCASS REINFORCEMENT CABLES HAVING LOW PERVIOUSNESS, AND TEXTILE THREADS ASSOCIATED WITH THE CARCASS REINFORCEMENT - A tire having a radial carcass reinforcement, composed of at least one layer of metal reinforcing elements, the said tire comprising a crown reinforcement, itself topped radially by a tread, the said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are cords exhibiting, in the “permeability” test, a flow rate of less than 20 cm | 11-27-2014 |
| 20140345773 | TIRE COMPRISING A LAYER OF CIRCUMFERENTIAL REINFORCING ELEMENTS - A tire comprising a crown reinforcement formed from at least two working crown layers of reinforcing elements and at least one layer of circumferential reinforcing elements, wherein, the tensile modulus of elasticity at 10% elongation of at least one skim coat of at least one working crown layer is greater than 9 MPa and the maximum value of tan(δ), denoted tan(δ)max, of said skim coat is less than 0.100. | 11-27-2014 |
| 20140345764 | TREAD WITH ARIABLE CHAMFERS - Tread having a plurality of generally circumferentially orientated grooves delimiting a plurality of relief elements, this tread further comprising a plurality of cut-outs in the form of transversely orientated grooves and/or slits, each relief element comprising a contact face intended to come into contact with the road and lateral faces cutting this contact face along edges intended to come into contact with a road during running, this tread having chamfers on at least a plurality of transverse edges of the relief elements, this tread having, in straight-line running, a total contact surface S comprising a part Sc in which all the transverse edges have chamfers and a part Snc in which all the transverse edges are free of chamfers, this tread having, in a cornering manoeuvre corresponding to a transverse acceleration of 0.3 g (where g is the acceleration due to gravity), a total footprint surface S* formed by a part Sc* comprising chamfers on all the transverse edges of its relief elements and a part Snc* free of any chamfer, this tread being such that the ratio Snc/Sc is equal to not more than 2% and that the ratio Snc*/Sc* is equal to or greater than 10%. | 11-27-2014 |
| 20140345763 | TIRE WITH COMPLEX BELTS - A tire comprises at least a left tread portion, a right tread portion, wherein the left tread portion and the right tread portion are axially separated by a longitudinally oriented groove. A tread reinforcement comprises a plurality of tread reinforcing layers wherein the reinforcement elements are formed of parallel reinforcements arranged in opposing layers, and each of the opposing layers has a bias angle relative to the circumferential direction. The bias angles of the reinforcement elements in each of the tread reinforcing layers corresponds to a plurality of equilibrium membrane shapes determined from membrane equilibrium equations that are joined together to create a continuous, complex shape. | 11-27-2014 |
| 20140343216 | TIRE PROVIDED WITH AN INNER LAYER COMPRISING A MIXTURE OF A DIENE ELASTOMER AND A THERMOPLASTIC ELASTOMER - A tire includes an internal layer, having improved airtightness. The layer includes at least one rubber composition, which includes: at least one or more diene elastomers at a total content of 1 to 99 phr, one or more thermoplastic elastomers having a polyisobutylene block at a total content of 1 to 99 phr, optionally a reinforcing filler at a content of 0 to 120 phr, and a crosslinking system. | 11-20-2014 |
| 20140343190 | TIRE PROVIDED WITH A TREAD MADE FROM A MIXTURE OF A DIENE ELASTOMER AND A THERMOPLASTIC ELASTOMER - A tire includes a tread, having improved airtightness. The tread includes at least one rubber composition comprising at least one or more diene elastomers at a total content of 1 to 99 phr, one or more thermoplastic elastomers having a polyisobutylene block at a total content of 1 to 99 phr, optionally a reinforcing filler at a content of 0 to 200 phr, and a crosslinking system. | 11-20-2014 |
| 20140338811 | TIRE COMPRISING CASING-REINFORCING CABLES HAVING LOW PERMEABILITY, AND FABRIC THREADS COMBINED WITH THE CASING REINFORCEMENT - A tire having a radial carcass reinforcement, composed of at least one layer of metal reinforcing elements, the said tire comprising a crown reinforcement, itself topped radially by a tread, the said tread being joined to two beads via two sidewalls. The metal reinforcing elements of at least one layer of the carcass reinforcement are cords exhibiting, in the “permeability” test, a flow rate of less than 20 cm | 11-20-2014 |
| 20140338806 | STUDDED TIRE - The invention relates to a studded tire the tread of which comprises a first part in contact with the ground and a second part placed radially to the inside of the first part, and at least one stud protruding from the tread, and the head of the stud being entirely anchored in the second part of the tread, in which the complex modulus G*(0° C.) of the rubber composition forming the first part of the tread is less than 1.5 MPa and in which the complex modulus G* of the rubber composition forming the second part of the tread varies with temperature such that G*(5° C.) is equal to or greater than 5 MPa and G*(20° C.) is less than or equal to 0.5G*(5° C.). | 11-20-2014 |
| 20140338805 | NOISE-REDUCING DEVICE FOR A TIRE - Tread having a tread surface intended to come into contact with a road surface and comprising at least one groove of width W and of depth P delimited by two walls facing one another, these walls being joined together by a groove bottom, at least one groove comprising at least one closure device for at least partially closing this groove as it passes through the contact patch, each closure device comprising at least one flexible blade of suitable thickness that allows it to flex under the effect of a circulation of liquid, this at least one flexible blade projecting from the bottom of the groove, each flexible blade being delimited by a contact wall intended to come into contact with the road surface and by end walls each facing a wall delimiting the groove and lateral walls, this tread further comprising at least one passage between the bottom of the groove and each blade of the device, this passage being intended to ensure a minimal flow of water when driving on a water-covered road surface. | 11-20-2014 |
| 20140332995 | SPECIMEN FOR DYNAMIC TESTING - Molds for preparing a viscoelastic material for dynamic analysis that include mold sections that when closed in alignment define such elements as a specimen cavity having an open end and dimensioned to provide a sample of the viscoelastic material of a predetermined size. Other elements may include a support member holder adjacent to the open end of the specimen cavity and a fill channel in fluid communication between the specimen cavity and a fill port. The fill port is adapted for receiving a reactive mixture of the viscoelastic material to fill the specimen cavity, wherein the support member holder is adapted for securing a support member having a surface that seals the open end of the specimen cavity. | 11-13-2014 |
| 20140332137 | TIRE COMPRISING A LAYER OF CIRCUMFERENTIAL REINFORCING ELEMENTS - A tire comprising a crown reinforcement formed from at least two working crown layers of reinforcing elements, a layer C of rubber mixture being placed between at least the ends of said at least two working crown layers, the crown reinforcement including at least one layer of circumferential reinforcing elements wherein the tensile modulus of elasticity at 10% elongation of the layer C is greater than 9 MPa and the maximum value of tan(δ), denoted tan(δ)max, of the layer C is less than 0.100. | 11-13-2014 |
| 20140326383 | CROWN FOR AN AIRCRAFT TIRE - A tire for an aeroplane and, in particular, a crown of a tire for an aeroplane, to reduce the dimensions and mass of pieces of tread in the event of accidental tire tread separation, without the use of additional devices external to the tire, which includes a tread intended to come into contact with the ground via a tread surface, and extending radially between a bottom surface and the tread surface, the tread comprising independent cavities. According to the invention, each cavity has, in the tread surface, an opening surface inscribed inside a circle, the centres (O) of the circles, circumscribed at the opening surfaces of the cavities, are distributed axially, over at least part of the axial width (l) of the tread surface, with an axial spacing (p | 11-06-2014 |
| 20140318688 | METHODS AND APPARATUS FOR HOT RECAPPING OF A RETREADED TIRE - Particular embodiments of the present invention comprise methods for retreading a tire and a retreaded tire formed by such methods. Such methods include assembling a retreaded tire by: applying a bonding layer along an outer side of a pre-existing tread layer of a tire carcass and within the one or more voids arranged within the pre-existing tread layer and applying a new, uncured tread layer along an outer side of the bonding layer. Such methods further include arranging an annular mold about the outer side of the tread of the assembled retreaded tire such that one or more void molding elements are arranged to terminate overtop and adjacent one of the one or more voids arranged within the pre-existing tread layer outer side. Such methods further include molding the new tread layer to the tire carcass according to hot retreading operations. | 10-30-2014 |
| 20140318678 | TRANSVERSE GROOVES PROVIDING VENTING IN TREADS FOR RETREADED TIRES - The present invention includes an improved tire tread having recessed lateral grooves, and a tire having the same. Particular embodiments of the tread include a tread thickness bounded depthwise by a top side configured to engage a ground surface during tire operation and a bottom side configured to attach to a tire carcass, the thickness extending laterally between a first side edge and a second side edge and longitudinally in a lengthwise direction of the tread. The tread further includes a longitudinal groove in fluid communication with the top side or the bottom side of the tread thickness and a lateral groove in fluid communication with the bottom side of the tread thickness extending from the first side edge intersecting the longitudinal groove forming a vent passageway extending from the longitudinal groove and to the first side edge. The invention includes methods of forming such treads and molds there for. | 10-30-2014 |
| 20140308864 | AQUEOUS ADHESIVE COMPOSITION BASED ON POLYALDEHYDE AND 2,2',4,4' -TETRAHYDROXYDIPHENYL SULPHIDE - An aqueous adhesive composition includes: a phenol/aldehyde resin; and an unsaturated elastomer latex. The phenol/aldehyde resin is based on at least: an aromatic polyaldehyde bearing at least two aldehyde functional groups and including at least one aromatic nucleus; and 2,2′,4,4′-tetrahydroxydiphenyl sulphide. The adhesive composition is useable to make a textile material adhere to a crosslinkable rubber composition, and may be used as an advantageous alternative to a formaldehyde-based RFL adhesive. | 10-16-2014 |
| 20140307941 | ANALYSIS OF THE DIGITAL IMAGE OF THE EXTERNAL SURFACE OF A TYRE AND PROCESSING OF FALSE MEASUREMENT POINTS - Method for processing the three-dimensional digital image of the surface of a tyre in which the three-dimensional image of the said surface is captured while assigning to each pixel of the plane of the image an item of information relating to the elevation of this point with respect to the surface to be inspected, characterized in that, with the aid of a morphological operator using a structuring element, a first transformation of the image of the surface is performed with the aid of an opening and then of a closing, so as to tailor the grey level of the pixels situated abnormally above or below the surface to be inspected. | 10-16-2014 |
| 20140305558 | TYRE HAVING A TREAD COMPRISING AN IMPREGNATED FELT - A tyre is provided with a tread that includes a felt. The felt is impregnated with a thermoplastic elastomer material. Fibres of the felt are selected from a group that includes: textile fibres, inorganic fibres, and mixtures of textile fibres and inorganic fibres. | 10-16-2014 |
| 20140299250 | TIRE WITH MULTIPLE BEAD CORES AND LOCKING INSERT - This invention relates generally to tires having multiple carcasses that wrap around multiple bead cores on a single side of the tire, and, more specifically, to a tire that has a bead core locking insert that eliminates a pullout step for one of the carcass plies or bands during fabrication, This step includes wrapping one of the plies or bands completely around said multiple bead cores that are found on a single side of the tire. In certain embodiments, the tire is an aviation tire that has bands of multiple plies that are wrapped about multiple bead cores found on each side of the tire. The bead core locking insert is found below the multiple bead cores found on each side of the tire and is adjacent to the bands that wrap around the inside and outside head cores, thereby locking these beads and associated bands together. | 10-09-2014 |
| 20140299249 | TIRE PROVIDED WITH AN OUTER SIDEWALL COMPRISING A MIXTURE OF A DIENE ELASTOMER AND A THERMOPLASTIC ELASTOMER - A tire includes an external sidewall, having improved airtightness. The external sidewall includes at least one rubber composition comprising at least one or more diene elastomers at a total content of 1 to 99 phr, one or more thermoplastic elastomers having a polyisobutylene block at a total content of 1 to 99 phr, optionally a reinforcing filler at a content of 0 to 120 phr, and a crosslinking system. | 10-09-2014 |
| 20140290814 | TREAD INCLUDING AT LEAST ONE WAVY GROOVE, AND METHOD FOR PRODUCING SAME - Tire for a heavy goods vehicle comprising a tread of total thickness E and total volume V, having a tread surface intended to come into contact with a roadway, at least one cavity or groove that is continuous in a main direction, and delimited by side walls connected by a bottom, a cross section, the points furthest towards the inside of the bottom of each cavity defining a bottom line, wherein each cavity or groove comprises a plurality of open sections open onto the tread surface in the new state and a plurality of closed sections, connected to the open sections being arranged in alternation, each closed section being spaced away from the tread surface by a bridge of rubber, wherein the points on the bottom line of said cavity or groove lie at distances between a minimum distance Dm and a maximum distance DM with respect to the tread surface, the bottom lineof each cavity or groove following a wavy geometry of positive amplitude equal to the difference (DM−Dm). | 10-02-2014 |
| 20140277929 | METHOD OF DETECTING WEAR OF A TYRE - A method for detecting a wear condition of a tyre utilizes tread pattern elements included on the tyre. The elements are adapted to generate first and second acoustic footprint noises (BEA1, BEA2), with one of the first and second acoustic footprint noises being characteristic of the wear condition of the tyre. According to the method, a parent frequency spectrum, which is capable of forming a frequency spectrum of one of the first and second acoustic footprint noises, and a child frequency spectrum, which is capable of forming a frequency spectrum of the other of the first and second acoustic footprint noises, are selected from a frequency spectrum of an acoustic signal acquired from the tyre. Two detection confidence indices are determined. If each detection confidence index meets a predetermined condition, a warning is emitted indicating that tyre wear has been detected. | 09-18-2014 |
| 20140270390 | ANALYSIS OF THE DIGITAL IMAGE OF THE INTERNAL SURFACE OF A TYRE AND PROCESSING OF FALSE MEASUREMENT POINTS - A method for processing an image of a surface of a tyre under inspection is described. A three-dimensional digital image of the surface is captured and, for each point of the captured image, a grey-level value corresponding to an elevation is assigned to the point. Utilizing a first morphological operator that uses a rectangular key element, a closure-type first transformation of the image of the surface is carried out. Utilizing a second morphological operator that uses a rectangular key element, an opening-type second transformation of the surface is carried out. For each point of the image, a grey-level value equal to a minimum value between a grey-level value at that point obtained in a preceding step and a grey-level value at that point is assigned, so as to eliminate false measurement points.— | 09-18-2014 |
| 20140265033 | METHOD FOR IMPROVED TIRE MOLD MANUFACTURING - The present invention includes methods and apparatus for developing and forming a tire-related mold configured to at least mold a portion of a tire tread. Particular embodiments of such methods include creating a digital model representing a three-dimensional structure comprising a tread model molding member, the tread model molding member at least partially defining a molding cavity for forming a corresponding tire tread model. The three-dimensional structure comprising the tread model molding member is formed automatically using the digital model, the structure being formed by building the structure from one or more materials, the one or more materials including an elastic material such that the formed structure is an elastic structure. A tread model is molded using the tread model molding member, while a tread molding element for forming at least a portion of a tread is molded from the tread model. | 09-18-2014 |
| 20140261951 | TIRE COMPRISING A LAYER OF CIRCUMFERENTIAL REINFORCING ELEMENTS - A tire having a crown reinforcement formed of at least two working crown layers each formed of reinforcing elements inserted between two calendaring layers of rubber compound, crossed from one layer to the other making angles of between 10° and 45° with the circumferential direction and the crown reinforcements comprising at least one layer of circumferential reinforcing elements. The elastic modulus under 10% tensile strain of at least one calendaring layer of at least one working crown layer is less than 8.5 MPa and the maximum value of tan(δ), denoted tan(δ)max, of said at least one calendaring layer of at least one working crown layer is less than 0.100. | 09-18-2014 |
| 20140261938 | VARIABLE HEIGHT GROOVES IN MULTIPLE WEAR LAYER TREADS FOR RETREADED TIRES - Particular embodiments of the present invention include multi-wear layer treads having variable depth grooves for retreaded tires, retreaded tires, and methods of forming retreaded tires. In particular embodiments, such multi-wear layer tire treads include a thickness bounded depthwise by a top side configured to engage a ground surface during tire operation and a bottom side configured for attachment to a tire carcass, the thickness extending laterally between opposing side edges and longitudinally in a lengthwise direction of the tread. Such tread may further include a top groove extending a variable depth into the tread thickness from the top side, the top groove having a groove bottom that varies depthwise within the tread thickness to form multiple wear layers. In other embodiments, top grooves may or may not be variable depth grooves, while the tread further include a bottom groove extending a variable depth into the tread thickness from the bottom side. | 09-18-2014 |
| 20140254912 | METHOD OF FAST ANALYSIS OF THE RELIEF ELEMENTS FEATURING ON THE INTERNAL SURFACE OF A TYRE - In a method of fast analysis of relief elements featuring on an inner surface of a tyre, a three-dimensional image of the surface is captured, and each pixel of the image is assigned a greyscale value proportional to a topographical elevation of a point corresponding to the pixel, so as to obtain a starting image. The image is transformed into an orthogonal reference frame (OXY) in which an abscissa axis (OX) represents circumferential values and an ordinate axis (OY) represents radial values. Each point of the surface, i.e., each pixel, is assigned an altitude gradient value (f(p)) by comparing an elevation of the point with an elevation of a discrete and reduced number of points arranged on a straight line passing through a pixel being considered (p) and oriented in a circumferential direction. | 09-11-2014 |
| 20140251527 | METHODS AND APPARATUS FOR CURING RETREADED TIRES - Embodiments of the invention include methods and apparatus for constraining a tread in a desired arrangement about a tire carcass during retreading operations. Such methods include the steps of providing a annular tire carcass configured for receiving a tread. Such methods also include the step of arranging a tread annularly about the precured tire carcass in a desired position to form an assembled retreaded tire. Such methods further include the step of arranging a retread curing membrane about an outer side of the tread, the curing membrane including an interior surface arranged to engage the outer side of the tread and including one or more protrusions extending from the membrane interior surface and into a void of the outer side of the tread. In other embodiments, a separate insert containing protrusions is arranged between a curing membrane and a tire tread for retread curing operations. | 09-11-2014 |
| 20140249251 | METHOD FOR PREPARING A MASTERBATCH OF DIENE ELASTOMER AND SILICA - Preparation of a masterbatch of diene elastomer and silica including preparing at least one silica dispersion in water; bringing into contact and mixing an elastomer latex and the aqueous silica dispersion in the presence of a metal salt having an at least divalent metal element, in order to obtain a coagulum; and recovering the coagulum and drying same in order to obtain the masterbatch. The metal cation molar ration, defined as the number of moles of metal cations of the metal salt per BET unit area of the silica, is between 9.375*10 | 09-04-2014 |
| 20140248825 | METHODS AND APPARATUS FOR DEFLECTING AND SUPPORTING A TIRE SIDEWALL - Particular embodiments of the invention include methods and apparatus for deforming a tire sidewall. Such methods include the step of providing a tire having at least one sidewall connected to a corresponding bead. A further step includes constraining at least one of the sidewall and bead from moving laterally toward the other. Yet another step of such methods includes engaging the sidewall with an inclined member. Another step of such methods includes moving at lest one of the sidewall and bead in a lateral direction away from the other until the sidewall is laterally deformed into a laterally deformed configuration. | 09-04-2014 |
| 20140246137 | TYRE FOR A ROAD VEHICLE, COMPRISING FINS - The invention relates to a tyre ( | 09-04-2014 |
| 20140243480 | NOVEL ANIONIC POLYMERIZATION INITIATOR, USE THEREOF FOR SYNTHESIZING A DIENE ELASTOMER HAVING AN ALKYNE FUNCTION AT THE CHAIN END, AND FUNCIONALIZED DIENE ELASTOMER - An anionic polymerization initiator of formula: | 08-28-2014 |
| 20140243448 | TIRE WITH IMPROVED GRIP ON WET GROUND - A tire having an improved wet grip, in particular for a passenger vehicle, a van, or two-wheel vehicle, includes a tread of which includes a rubber composition. The rubber composition includes at least (phr meaning parts by weight per hundred parts of elastomer):
| 08-28-2014 |
| 20140235751 | TIRE WITH IMPROVED GRIP ON WET GROUND - A tire having an improved wet grip, in particular for a passenger vehicle, a van, or a two-wheel vehicle, includes a tread formed of a rubber composition. The rubber composition includes at least (phr meaning parts by weight per hundred parts of elastomer):
| 08-21-2014 |
| 20140235125 | AQUEOUS ADHESIVE COMPOSITION BASED ON POLYALDEHYDE AND PHLOROGLUCINOL - An aqueous adhesive composition includes: a phenol/aldehyde resin; and an unsaturated elastomer latex. The phenol/aldehyde resin is based on at least: an aromatic polyaldehyde bearing at least two aldehyde functional groups and including at least one aromatic nucleus; and phloroglucinol. The adhesive composition is useable to make a textile material adhere to a crosslinkable rubber composition, and may be used as an advantageous alternative to a formaldehyde-based RFL adhesive. | 08-21-2014 |
| 20140235124 | AQUEOUS ADHESIVE COMPOSITION BASED ON POLYALDEHYDE AND POLYPHENOL - An aqueous adhesive composition includes: a phenol/aldehyde resin; and an unsaturated elastomer latex. The phenol/aldehyde resin is based on: an aromatic polyaldehyde bearing at least two aldehyde functional groups and including at least one aromatic nucleus; and a polyphenol including at least one aromatic nucleus. If there is just one aromatic nucleus, the nucleus bears two or three hydroxyl functional groups in a meta position with respect to each other or with respect to one another, with a remainder of the nucleus being unsubstituted. If there are plural aromatic nuclei, at least two of the nuclei each bear two or three hydroxyl functional groups in the meta position with respect to each other or with respect to one another, with two positions ortho to at least one of these hydroxyl functional groups being unsubstituted. The adhesive composition is useable to adhere a textile material to a crosslinkable rubber composition. | 08-21-2014 |
| 20140233841 | METHOD OF CHEKCING THE APPEARANCE OF THE SURFACE OF A TYRE - Detection method according to Claim | 08-21-2014 |
| 20140230985 | INNER TUBE FOR A PNEUMATIC TYRE BASED ON A THERMOPLASTIC ELASTOMER - Inner tube for a pneumatic tyre, notably for a bicycle, characterized in that it has an elastomeric gastight layer consisting of an elastomeric composition comprising at least one styrene/isobutylene/styrene thermoplastic elastomer (called “SIBS”) and in that it includes a self-sealing material disposed inside the cavity formed by the airtight elastomeric layer. | 08-21-2014 |
| 20140230980 | TIRE WITH TREAD HAVING IMPROVED SNOW AND DRY TRACTION - This invention relates generally to tires having treads that have a configuration and/or properties for providing suitable snow and dry traction, and, more specifically, to a tire that has a tread that has a maximum value for sipe density in the contact patch, a minimum value for lateral groove density in the contact patch, and a minimum value for the longitudinal contact surface ratio. In certain embodiments, the pitch length of pitches or repeating units of tread geometry along the circumferential direction of the tire is within a certain range and the tread depth is below a specified value. Tires with treads having a configuration that falls within these design parameters exhibit a desirably good level of snow and dry traction. | 08-21-2014 |
| 20140230205 | PARTITIONED RUBBER-COATED FABRIC - In a rubber-coated fabric, a plurality of warp cords is included with a spacing d between, sides of adjacent warp cords, each of the warp cords being coated with a layer of rubber compound, A cut line may further be included that separates groups of the warp cords, each group having a predetermined number of the warp cords. The cut line, may be formed by between 2 and 6 adjacent cut line warp cords, wherein a distance dc, between any two sides of adjacent cut Hue warp cords may be no more than. 50% of d. The layer of rubber compound that coats- the rubber-coated fabric is thin enough to outline the cut line on a surface of the rubber-coated woven fabric. | 08-21-2014 |
| 20140221557 | OFF-ROAD TIRE TREAD - The invention relates to an off-road tire comprising a composition based on at least one filler, a crosslinking system, from 50 to 80 parts by weight, per hundred parts by weight of elastomer (phr), of at least one isoprene elastomer and from 20 to 50 phr of at least one polybutadiene having a high vinyl content, the total content of isoprene elastomer and of polybutadiene having a high vinyl content being within a range varying from 85 to 100 phr. | 08-07-2014 |
| 20140219541 | METHOD FOR DETERMINING MARKINGS IN RELIEF ON THE OUTER SURFACE OF THE SIDEWALL OF A TYRE - A method of determining relief markings on a tyre's sidewall surface includes assigning, to each pixel of a three-dimensional image of the surface, a grey-level value proportional to an elevation point corresponding to the pixel, to obtain a starting image. Using linear structuring elements of successively increasing sizes and oriented circumferentially, a series of successive morphological openings is performed iteratively on the starting surface. An image value obtained after a morphological opening using a structuring element is subtracted from an image value obtained after a morphological opening using a structuring element of an immediately lower size, to obtain a succession of images flattened by differencing. A thresholding operation is performed on the images flattened by differencing, to obtain binary images. A set-theoretic union of values of each of the binary images is performed, to obtain a final binary image in which markings appear in relief. | 08-07-2014 |
| 20140216619 | PNEUMATIC TIRE TREAD - A pneumatic tire tread capable of mitigating air column resonance and maintaining drainage performance while ensuring that the flexible fences are abraded to a similar extent to the tread portion is formed from a rubber composition and has a tread portion, in which is formed at least one primary groove of depth D and width W having a base surface and two opposing walls, and multiple flexible fences of thickness E, which extend inside the primary groove such that at least 70% of the cross-sectional area of the primary groove is blocked and which are disposed at intervals such that at least one of the multiple flexible fences is in the primary groove in the tread contact patch when the tire is rolling, wherein the multiple flexible fences are formed from at least a rubber composition for fences that is different from the rubber composition for the tread portion; and the rubber composition for fences has an abrasion index that is more than or equal to twice the abrasion index of the rubber composition of the tread portion. | 08-07-2014 |
| 20140215785 | 1-D Tire Patch Apparatus and Methodology - Disclosed is a tire mountable apparatus and method that includes a substrate defining a longitudinal direction, a top surface and a bottom surface. The substrate has a plurality of conductor terminals arranged in a substantially linear relationship. A first support element is located below the bottom surface of the substrate and a second support element is located above the top surface of the substrate. The plurality of conductor terminals are positioned between the first and second support elements. The substrate may be a piezoelectric device having a piezoelectric layer arranged between first and second conductive layers. The plurality of conductor terminals may be arranged in a substantially linear relationship along a line about | 08-07-2014 |
| 20140205836 | RUBBER COMPOSITE CORD FOR A TREAD OF A PNEUMATIC TIRE - A composite cord includes a rubber core and a rubber sheath surrounding, at least in part, the rubber core. A formulation of the core is different from that of the sheath. The rubber core includes at least one diene elastomer and more than 30 phr of a filler A. The filler A includes nanoparticles having a weight-average size of less than 500 nm. The rubber sheath includes at least one diene elastomer, from 0 to less than 30 phr of a filler A′, and more than 70 phr of a filler B. The filler A′ includes nanoparticles having a weight-average size of less than 500 nm. The filler B includes microparticles having a weight-median size of greater than 1 μm. | 07-24-2014 |
| 20140202604 | TIRE FOR LIGHT VEHICLE - The invention relates to a tyre designed to be fitted to a light vehicle, comprising: two beads ( | 07-24-2014 |
| 20140196827 | TIRE COMPRISING A CROWN REINFORCEMENT - The invention relates to a tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements the ends of which are radially uncoupled by a polymer compound. According to the invention, the reinforcing elements of at least one working crown layer are metal cords with saturated layers, at least one internal layer being sheathed with a layer consisting of a polymer composition such as a rubber composition and in each of the shoulders of the tire, at least the uncoupling polymer compound in contact with the ends of at least two working crown layers exhibits, in the sorption test, a gas content lower than 0.06 m | 07-17-2014 |
| 20140194545 | VEHICLE TYRE HAVING A TREAD COMPRISING A HEAT-EXPANDABLE RUBBER COMPOSITION - A vehicle tyre, usable in winter weather, includes a tread formed of a rubber composition that is heat-expandable when in an unvulcanized state, and expanded when in a vulcanized state. When unvulcanized, the composition includes a diene elastomer, such as natural rubber and/or a polybutadiene; more than 50 phr of a reinforcing filler, such as silica and/or carbon black; between 5 and 25 phr of a sodium- or potassium-including carbonate or hydrogen carbonate; and between 2 and 20 phr of a carboxylic acid having a melting point between 60° C. and 220° C., such as citric acid or stearic acid. A total content of the carboxylic acid and the carbonate or the hydrogen carbonate is greater than 10 phr. Presence of the carboxylic acid and the carbonate or the hydrogen carbonate makes it possible to greatly improve the tyre's grip on melting ice. | 07-10-2014 |
| 20140190604 | PNEUMATIC TYRE PROVIDED WITH A TREAD BASED ON A THERMOPLASTIC ELASTOMER - The present invention relates to a tyre provided with a tread, such that the tread comprises at least one thermoplastic elastomer, which is a block copolymer comprising at least one elastomer block and at least one thermoplastic block, and hollow microparticles. | 07-10-2014 |
| 20140185883 | ANALYSIS OF THE DIGITAL IMAGE OF THE SURFACE OF A TYRE AND PROCESSING OF NON-MEASUREMENT POINTS - In a method for processing an image of a surface of a tyre, a 3D digital image of the surface is captured, and each pixel of the captured image is assigned a grey level value proportional to an elevation of a corresponding point with respect to the surface. The pixels are placed in rows and columns. A search is made for zones of the surface that include pixels having a grey-level value lower than a given threshold. Boundaries of an encompassing box that includes one or more of the zones are determined. Inside the encompassing box, a grey-level value equal to a mean grey-level value of a set of reference pixels (K | 07-03-2014 |
| 20140174639 | TYRE HAVING A BUILT-IN SELF-SEALING LAYER - A method for protecting a tyre against punctures includes: providing a self-sealing layer; providing an anti-tack layer that includes particles having a shape factor higher than 5; forming a tyre such that the self-sealing layer is built into the tyre during manufacture of the tyre; and applying the anti-tack layer a radially internal surface of the self-sealing layer. | 06-26-2014 |
| 20140174613 | TYRE COMPRISING SINGLE-STRIP AUDIBLE WEAR INDICATORS - A tyre includes a first-threshold projection and a second-threshold projection. The first-threshold projection extends radially from a bottom of a circumferential groove of the tyre. The first-threshold projection is arranged such that, once the tyre has exceeded a first wear threshold, the first-threshold projection comes into contact with a ground surface as the first-threshold projection passes through a contact area in which the tyre contacts the ground surface. The second-threshold projection extends radially from a bottom of a circumferential groove of the tyre. The second-threshold projection is arranged such that, once the tyre has exceeded a wear threshold indicative of a more advanced wear than the first wear threshold, the second-threshold projection comes into contact with the ground surface as the second-threshold projection passes through a contact area in which the tyre contacts the ground surface. A plurality of threshold projections may be evenly distributed circumferentially about the tyre. | 06-26-2014 |
| 20140166173 | TREAD COMBINING INSERTS AND SIPES - Tire tread comprising a tread surface intended to come into contact with a roadway, this tread comprising at least one sipe extending in a main direction D and of mean width E, this sipe comprising in the main direction D at least one part sipe of shallow depth HF and at least one part sipe of great depth HG, the depth HF being less than the depth HG, each part sipe of shallow depth and each part sipe of great depth comprising an end region, this tread further comprising at least one insert oriented in a direction different from the main direction D of the sipe, this insert being positioned wholly within the thickness of the tread so as to be situated radially on the inside of a part sipe of shallow depth HF, this tread being such that at least the part sipe of shallow depth HF situated radially on the outside of the insert is provided, at its end region, with a widening forming a channel of maximum width W, this maximum width W being greater than the mean width E of the sipe. | 06-19-2014 |
| 20140166172 | TIRE INCLUDING A TREAD PROVIDED WITH INCISIONS INCLUDING WIDE PORTIONS AND NARROW PROTIONS - Tyre comprising a tread, this tread including a rolling surface ( | 06-19-2014 |
| 20140150949 | BEAD OF A TIRE FOR A HEAVY VEHICLE OF CONSTRUCTION PLANT TYPE - The invention relates to improving the endurance of the beads of a radial tire for a heavy vehicle of construction plant type, by reducing the cracking that starts at the surface of contact between a first polymer filling material that is radially furthest towards the inside and in contact with the bead wire and a second polymer filling material that is radially on the outside of the first polymer filling material. According to the invention, a transition element, made of a polymer transition material, is in contact, via its radially inner face, with the first polymer filling material and is in contact, via its radially outer face, with the second polymer filling material, and the elastic modulus at 10% elongation of the polymer transition material is somewhere between the respective elastic moduluses at 10% elongation of the first and second polymer filling materials. | 06-05-2014 |
| 20140150943 | METHOD FOR PRODUCING A TIRE COMPRISING AN IMPROVED TREAD WITH A FOAMED MATERIAL - A layer of cellular material forms a running layer ( | 06-05-2014 |
| 20140150942 | TIRE COMPRISING A TREAD WITH A FOAMED MATERIAL - The tyre comprises a tread ( | 06-05-2014 |
| 20140150940 | TIRE WITH TREAD HAVING VARIABLE SIPE DENSITY AND ROUND CROWN - This invention relates generally to tires having treads that have a configuration and/or properties for maintaining hydroplaning performance, dry braking performance and improved wear resistance, and, more specifically, to a tire that has a tread that N has a variable sipe density, i.e a higher sipe density in its central portion and a lower sipe density in its shoulder portions, as well as a round crown with a predetermined inflated profile droop. Another embodiment of the present invention further includes the addition of a member that provides more structural stiffness across the crown of a tire, such that better compromises between hydroplaning, dry braking, and wear performances can be obtained. | 06-05-2014 |
| 20140144564 | TYRE EQUIPPED FOR ATTACHING AN OBJECT TO THE WALL THEREOF AND METHOD FOR MAKING SAME - A tyre is described that includes a casing defining a cavity and equipped to receive an object, such as an electronic circuit, for example, through use of a two-part attachment, such as a touch-close attachment, of which a first part is fixed to a wall of the casing and a second part can be joined to the first part when placed in contact with the first part to keep the object on the casing in a service position. The first part of the attachment includes connection elements that are an integral part of the wall of the casing of the tyre. The connection elements allow these two parts to have freedom to move relative to each other, thereby limiting the transmission of stresses, which affect the wall of the tyre, to the object. The connection elements may be loops of flexible thread formed by the extremities of turns of a coiled thread integrated into the wall of the tyre during the tyre's manufacture. | 05-29-2014 |
| 20140138004 | SELF-SEALING ELASTOMER COMPOSITION FOR A PNEUMATIC OBJECT - An elastomer composition having a self-sealing property includes: a blend of at least two solid elastomers, in which “elastomer A” is a polybutadiene or butadiene copolymer elastomer, in which “elastomer B” is a natural rubber or synthetic polyisoprene elastomer, and in which an elastomer A:elastomer B weight ratio is within a range from 10:90 to 90:10; between 30 and 90 phr of a hydrocarbon resin, with phr meaning parts by weight per 100 parts of solid elastomer; and from 0 to less than 120 phr of filler, which includes from 0 to less than 30 phr of reinforcing filler. The composition may be used to form a puncture-resistant layer in an inflatable article, such as a tyre. The puncture-resistant layer may be used in combination with an airtight layer to form an airtight and puncture-resistant laminate for the inflatable article. | 05-22-2014 |
| 20140130961 | METHODS AND APPARATUS FOR INSTALLING A TREAD RING UPON A TIRE CARCASS - Exemplary embodiments of the subject invention comprise methods and apparatus for mounting a tread ring onto a tire carcass. Such methods may include the step of providing a tire tread ring having opposing side edges; arranging the tread ring in an initial ring arrangement in communication with a pressure source, the pressure source being in communication with an outer side of the tread ring; expanding the tread ring radially outward from the initial ring arrangement to an expanded arrangement, the tread ring being expanded by applying vacuum pressure along the outer side of the tread ring supplied by the pressure source; inserting a tire carcass within a central opening of the tread ring while in the expanded arrangement; contracting the tread ring into an installed arrangement about an outer surface of the tire carcass; and, releasing the vacuum along the outer side of the tread ring. | 05-15-2014 |
| 20140128499 | RUBBER COMPOSITION INCLUDING A THIAZOLE DERIVATIVE - A rubber composition for the manufacture of tyres is based on one or more diene elastomers, one or more reinforcing fillers, and a vulcanization system. The vulcanization system includes one or more thiazole compounds chosen from compounds having the following formula (I): | 05-08-2014 |
| 20140125460 | RFID PASSIVE REFLECTOR FOR HIDDEN TAGS - The subject matter relates to methods for communicating with an RFID tag that is positioned out of the line-of-sight of a communications device. A passive reflector is provided corresponding to an antenna resonant at the operating frequency of the tag. The antemia may be supported by an insulative or conductive wand for manual placement within the line-of-sight of both the tag and a communications device wishing to communicate with the tag. The passive reflector receives signals from either or both the tag and communications device and retransmits the signals. In this manner signals are able to “turn a comer” to improve communications capabilities. | 05-08-2014 |
| 20140124108 | TYRE HAVING MULTILEVEL SONIC WEAR INDICATORS - A tyre includes two sets of acoustic (sonic) wear indicators associated with two wear thresholds. Noise is generated when each wear threshold is exceeded. Each wear indicator of each set of wear indicators is axially aligned with each other wear indicator of that set of wear indicators. A number of sets of wear indicators associated with each wear threshold is different from a number of sets of wear indicators associated with each other wear threshold. The sets of wear indicators associated with each wear threshold are evenly distributed circumferentially about the tyre. Each wear indicator is formed of a projection of rubber extending from a bottom portion of a circumferential groove of the tyre. | 05-08-2014 |
| 20140121997 | METHOD FOR THE UNAMBIGUOUS DETECTION OF THE WEAR THRESHOLD OF A TYRE - The wear detection method applies to a tyre ( | 05-01-2014 |
| 20140111129 | UNIT COMPRISING AN ELECTRIC POWER SOURCE INCLUDING AT LEAST TWO ELEMENTS OF DIFFERENT TECHNOLOGIES AND AN INVERTER FOR CONTROLLING AN ALTERNATING-CURRENT ELECTRIC MOTOR - An installation for an electric motor includes an electrical energy source with elements of different technologies and an inverter for controlling an AC electric motor. The inverter includes an AC current generator for delivering current to a terminal strip to be connected to phases of the electric motor, a supply line, current sensors on certain phases supplying the electric motor, a current sensor on the supply line, an input for receiving information that includes a limit current of the source and a requested-torque setpoint, and a controller for controlling phase currents of the electric motor as a function of the setpoint while maintaining a current of the supply line at an acceptable value as a function of the limit current of the source. The installation makes it possible to impose a maximum current on the current generator without risk of impairing the current generator. | 04-24-2014 |
| 20140110025 | TREAD FOR HEAVY GOODS VEHICLE TIRE - Tread for a tire for a heavy goods vehicle of total thickness E and of total volume V, having at least one continuous groove comprising: at least two wearing layers in the thickness of the tread, each having a thickness at most equal to 75% of the total thickness E of the tread, a plurality of external cavities and a plurality of internal cavities positioned radially and entirely on the inside of the tread surface in the new state, each internal cavity being connected to an external cavity by a connecting channel, and having a total voids volume Vc at least equal to 7% and at most equal to 12% of a volume equal to the sum of the total volume V and of the total voids volume, and having an effective voids volume Ve for each wearing layer less than the total voids volume Vc, and satisfying the equation: 0.4 St−65° C. | 04-24-2014 |
| 20140107268 | RUBBER COMPOSITION COMPRISING A THIAZOLINE DERIVATIVE - A rubber composition for manufacturing tyres includes one or more diene elastomers, one or more reinforcing fillers, and a vulcanization system. The vulcanization system includes one or more thiazoline compounds chosen from compounds of formula I and compounds of formula II: | 04-17-2014 |
| 20140104052 | METHOD OF MANAGING DATA BETWEEN AN RFID MARKER CARRIED BY A TYRE AND A SENSOR CARRIED BY A RIM - A method is provided to manage data transmitted between an RFID marker, which is mounted on a tyre, and a wheel module, which is mounted on a rim. The wheel module includes a memory and at least one sensor. When the tyre is mounted on the rim, a mounted assembly is formed, also known as a wheel, which is intended to be installed on a motor vehicle. According to the method, RFID data is transmitted between the RFID marker and the wheel module via an intermediate unit that is separate from the mounted assembly and the motor vehicle. The RFID data is stored in the memory of the wheel module. When the wheel module includes a sensor for detecting tyre pressure, the RFID data stored in the memory of the wheel module is erased when a detected tyre pressure is less than or equal to a predetermined pressure threshold. | 04-17-2014 |
| 20140100323 | RUBBER COMPOSITION INCLUDING A 1,2,4-TRIAZINE DERIVATIVE - A rubber composition for manufacturing tyres is based on one or more diene elastomers, one or more reinforcing fillers, and a vulcanization system. The vulcanization system includes one or more 1,2,4-triazine compounds chosen from compounds of formula I and compounds of formula II: | 04-10-2014 |
| 20140090758 | TIRE FOR A HANDLING VEHICLE - A tire for a handling vehicle, designed to transport heavy loads, over short distances and at low speeds, and a mounted assembly consisting of a tire mounted on a rim. Also, a method for producing such a mounted assembly. A mounted assembly includes a tire mounted on a rim, having a tread designed to come into contact with a ground, two sidewalls extending radially inwards from the ends of the tread, and two beads extending the sidewalls radially inwards and in contact with the rim, an internal cavity containing a filling component consisting of at least one incompressible solid element, and which is a granular filling component consisting of granules at least partly separated from one another by interstices containing at least gas, and the fill rate, which is the ratio between the total volume of the granules, the total of the elementary volumes of the granules, and the volume of the internal cavity, is at least equal to 0.8. | 04-03-2014 |
| 20140090548 | TIRE HAVING A COMPOSITE CORD IN THE TREAD - A tire includes a tread with an internal cavity. Positioned in the internal cavity is a composite cord structured to include an elastomer core and a sheath surrounding the elastomer core. The sheath is formed of a hollow cylindrical braid made of helically intertwined non-contiguous fibers. The tire may be pneumatic or non-pneumatic. | 04-03-2014 |
| 20140090446 | METHOD OF APPLYING PARTICULATE MATERIAL ALONG A TIRE FOOTPRINT DURING TIRE TESTING ON A TIRE TESTING SURFACE - The present invention includes a method for testing a tire on a tire testing surface, the method comprising the steps of: providing a tire testing surface arranged along a tire testing device; providing a tire having a radially outer annular side comprising a road-engaging surface; engaging forcefully the tire against the tire testing surface, whereby the forceful engagement generates a tire footprint comprising an area of contact between the road-engaging surface of the tire and the tire testing surface; rotating the tire and along the tire testing surface while engaged according to the prior step; and, applying a particulate material along the footprint, the particulate material comprising kaolinite. In other embodiments, particulate material similar to kaolin or kaolinite is employed by such methods in lieu of kaolin or kaolinite. | 04-03-2014 |
| 20140084820 | DEVICE AND METHOD FOR MANAGING THE ELECTRIC BRAKING OF A VEHICLE - A device for managing electric braking power includes a continuous bus, a dissipation branch, a current sensor, a controller, and an electronic charging switch. The bus includes a first pole for connection to a vehicle electric traction machine, a second pole for connection to a battery, and a connection point for connection to the dissipation branch, which includes an electronic dissipation switch connected to a dissipation resistor. The current sensor and the charging switch are positioned on the bus between the connection point and the second pole. The charging switch controls a flow of current over the bus from the first pole to the second pole. When power sent over the bus is greater than a total of power that charging of the battery can absorb and power that the dissipation resistor can dissipate, the controller causes the charging switch to open. | 03-27-2014 |
| 20140084530 | TIRE WORK STAND - A tire work stand comprises a frame for supporting the work stand on a ground surface and for attaching a set of components to the tire work stand. A plurality of rollers is attached to the frame to support a tire above the ground surface and to permit rotation of a tire during inspection of the tire. A ramp is configured to have a first ramp end capable of extending from the ground surface and a second ramp end extending to a position proximal to the frame. A bridge is configured to have a first bridge end extending from the second ramp end and a second bridge end extending to a position proximal to a surface of at least one of the rollers, wherein the bridge acts to inhibit rotation of the roller during loading of the tire and further permits rotation of the tire after the tire has been loaded on the tire work stand. | 03-27-2014 |
| 20140083589 | TYRE HAVING A CROWN REGION PROVIDED WITH AN UNDERLAYER COMPRISING A THERMOPLASTIC ELASTOMER - A radial tyre for a vehicle includes a crown with a tread having a radially outer part intended to contact a road surface; two beads; two sidewalls connecting the beads to the tread; a carcass reinforcement that extends into the sidewalls and is anchored in the beads; a crown reinforcement positioned circumferentially between the radially outer part of the tread and the carcass reinforcement; and an underlayer. The underlayer:
| 03-27-2014 |
| 20140077732 | DEVICE AND METHOD FOR MANAGING THE ELECTRIC BRAKING OF A VEHICLE - A device for managing electric braking power includes a controller and a DC bus with a first pole that connects to a vehicle traction machine, a second pole that connects to a battery, and a connection point. The machine is associated with an inverter that delivers an electric braking power via the DC bus. A dissipation branch is connected to the DC bus at the connection point. The device also includes, on the DC bus between the connection point and the second pole, a current sensor and a charging switch that controls a current that flows on the DC bus from the first pole to the second pole. The controller evaluates a difference between a battery recharge limit current and the current on the DC bus, such that the charging switch is left closed if the current is less than the limit current. | 03-20-2014 |
| 20140076473 | TYRE PROVIDED WITH A TREAD COMPRISING A THERMOPLASTIC ELASTOMER - A tyre includes a tread, a crown with a crown reinforcement, first and second sidewalls, two beads, and a carcass reinforcement anchored to the two beads and extending from the first sidewall to the second sidewall. The tread includes a thermoplastic elastomer that is a block copolymer, which includes at least one elastomer block and at least one thermoplastic block. A total content of the thermoplastic elastomer in the tread is within a range varying from 65 to 100 phr (parts by weight per hundred parts of elastomer). | 03-20-2014 |
| 20140069563 | ARAMID/POLYKETONE COMPOSITE TEXTILE CORD - Aramid/polyketone composite textile cord comprising at least one aramid multifilament strand and at least one polyketone multifilament strand that are twisted together, the constituent individual filaments of the aramid multifilament strand being twisted according to a twist factor K | 03-13-2014 |
| 20140060730 | METHODS AND APPARATUS FOR JOINING TREADS - The subject invention includes methods and apparatus for joining treads. Such methods include the step of providing a first tread portion and a second tread portion for forming a joined tread, each tread portion comprising a section of tire tread extending lengthwise from a terminal end. Additional steps include providing a first fixture configured to retain the first tread portion and a second fixture configured to retain the second tread portion and securing the first tread portion into the first fixture and securing the second tread portion into the second fixture, each of the first and second fixtures being arranged within the first and second fixtures such that the terminal end of each tread portion is in communication with a joining side of each fixture. The methods further include directing the terminal ends towards each other and into forceful engagement with an elastomeric joining material arranged between the terminal ends. | 03-06-2014 |
| 20140060717 | TIRE WITH TREAD HAVING BRIDGED AREAS WITH SPLIT CONTACT FACES WITHIN A LATERAL GROOVE - This invention relates generally to tires having treads that have a configuration and/or properties for maintaining hydroplaning resistance and improving rolling resistance, and, more specifically, to a tire that has a tread with bridged areas found in its lateral grooves that are configured to maintain hydroplaning resistance and snow traction while also improving rolling resistance. | 03-06-2014 |
| 20140058621 | METHOD AND DEVICE FOR COUNTING THE NUMBER OF LANDINGS PERFORMED BY AN AIRCRAFT TYRE - A number of landings of an aircraft tyre is counted according to a method that includes: measuring a physical quantity of air contained inside the tyre, the measuring taking place in a discontinuous mode; determining at least one indicator relating to the physical quantity; comparing the at least one indicator with a predetermined threshold associated with the tyre; and, if the at least one indicator is greater than the predetermined threshold associated with the tyre, incrementing the number of landings of the tyre. | 02-27-2014 |
| 20140051312 | RUBBER COMPOSITE REINFORCED WITH A TEXTILE MATERIAL PROVIDED WITH A THERMOPLASTIC ADHESIVE - Rubber composite, and in particular tyre, reinforced with a sized textile material, such as a fibre or a film, at least one portion of which is coated with an adhesive layer, capable of adhering directly via curing (crosslinking) to an unsaturated rubber matrix, such as a natural rubber matrix, characterized in that said layer comprises an adhesive composition or thermoplastic adhesive, in the liquid or solid state, which is based on at least one unsaturated thermoplastic styrene (TPS) elastomer and a poly(p-phenylene ether) (PPE). | 02-20-2014 |
| 20140045983 | COMPOSITE REINFORCER SHEATHED WITH A LAYER OF POLYMER THAT IS SELF-ADHESIVE TO RUBBER - Composite reinforcer (R-2) capable of adhering directly to a diene rubber matrix, which can be used as a reinforcing element for a pneumatic tyre, comprising:
| 02-13-2014 |
| 20140044964 | COMPOSITE REINFORCEMENT COATED WITH A SELF-ADHESIVE POLYMER LAYER WHICH ADHERES TO RUBBER - Composite reinforcer (R-2) capable of adhering directly to a diene rubber matrix, which can be used as a reinforcing element for a pneumatic tyre, comprising:
| 02-13-2014 |
| 20140035188 | BIASING WEDGE FOR USE WITH CALENDERING DRIVES PROCESSING ELASTOMERIC MIXES - A method and apparatus are provided for automatic and hands-free threading of an elastomeric mix into a calender set of rolls comprising one or more pairs of rolls that have a nip between them. A wedge is provided with a tip that is positioned downstream from the nip and at a predetermined distance from the nip. As the rolls of the nip are rotated, the tip of the edge removes all, or a desired portion of, the elastomeric mix from a first roll of the nip so as to transfer the elastomeric mix to a second roll of the nip. The tip of the wedge may be placed into contact with the first roll. The wedge may also have an arcuate surface, shaped e.g., like the outer surface of the first roll, and positioned a predetermined distance from the outer surface of the first roll. | 02-06-2014 |
| 20140035187 | STRIPPER ROLL FOR USE WITH CALENDERING DRIVES PROCESSING ELASTOMERIC MIXES - A method and apparatus are provided for automatic and hands-free threading of an elastomeric mix into a calender set of rolls comprising one or more pairs of rolls that have a nip between them. A stripper roll is positioned next to one of the rolls forming the nip and is rotated so that the outer surface of the stripper roll moves in a direction opposite to the outer surface of the adjacent roll. The stripper roll removes all or a desired portion of the elastomeric mix from the adjacent roll and causes the same to transfer to another roll. Variables such as e.g., the relative surface speed of the stripper roll, diameter of the stripper roll, and distance of the outer surface of the stripper roll from the adjacent roll can be manipulated to control the amount of the elastomeric mix that is stripped by the stripper roll. | 02-06-2014 |
| 20140024745 | TYRE, THE TREAD OF WHICH COMPRISES A POLY(ALKYLENE ESTER) RESIN - A tyre, the tread of which comprises a rubber composition comprising at least: a diene elastomer; from 100 to 150 phr of a reinforcing inorganic filler; a poly(alkylene ester) thermoplastic resin; a plasticizing system comprising: according to a content A of between 5 and 60 phr, a hydrocarbon resin exhibiting a Tg of greater than 20° C.; according to a content B of between 5 and 60 phr, a plasticizer which is liquid at 20° C., the Tg of which is less than −20° C.; and it being understood that A+B is greater than 40 phr. The use of a poly(alkylene ester) resin, combined in particular with high contents of filler and plasticizers, makes it possible to improve the stiffness of the tread and thus the road behaviour of the tyre, without affecting the hysteresis and thus the rolling resistance. | 01-23-2014 |
