| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 152209170 | Having isolated holes or suction cups | 23 |
| 20090199944 | PRECURE TREAD AND RETREADED TIRE USING SAME - There is provided a precure tread and a retreaded tire using same capable of enhancing the stiffness of the land portion and significantly reducing likelihood of peeling off from the base tire during traveling by optimizing the cross-section shape of the rear surface groove of the precure tread, while maintaining the wet performance from the beginning to the end of wear life. | 08-13-2009 |
| 20110030863 | TIRE WITH APERTURED SHOULDER BLOCK FOR IMPROVED TEMPERATURE CONTROL - A tire is provided having a plurality of shoulder blocks separated by axial grooves and located along at least one side of the tire. Apertures extend through the shoulder blocks to connect with a circumferential groove. The apertures are located within a certain radial position relative to the axial grooves. Each aperture has a bottom positioned at a radial depth HB relative to the shoulder block and extends completely through the shoulder block along the axial direction. Each aperture has a radial overlap HL with the axial grooves. The ratio HL/Ho is about 0.15 or less and the ratio of HB/Ho is in the range of about 1.0 to about 1.1. | 02-10-2011 |
| 20110083777 | Tire Tread Design - Tire tread ( | 04-14-2011 |
| 20110162768 | PNEUMATIC TIRE - To significantly improve performances on ice by optimizing a tread pattern. | 07-07-2011 |
| 20110220256 | PNEUMATIC TIRE - A pneumatic tire including, on a tread surface, rib-like land portions partitioned by a plurality of main grooves and/or a plurality of block-like land portions partitioned by lug grooves extending in a tire width direction, wherein sipes or small holes are provided in the land portions, multiple protrusions are disposed having a height that is less than a depth of the sipes or small holes, and the multiple protrusions are disposed so as to form a shape wherein a flow path width increases at a flow path convergence point where flow paths formed in a mesh-like shape between the protrusions converge from at least three directions, and a ratio of an area of the multiple protrusions to an area of a block-like land portion is 0.5 or greater and 0.9 or less. | 09-15-2011 |
| 20110308680 | PNEUMATIC TIRE - A pneumatic tire provided with a tread pattern, wherein a tread half which is one half of the tread pattern on each side of the tire equator is made up of repeat design units arranged circumferentially of the tire. The repeat design units have at least two different circumferential pitch lengths, and the repeat design units are each provided with at least one stud hole. | 12-22-2011 |
| 20120145293 | PNEUMATIC TIRE - A pneumatic tire comprises, on a tread surface, a circumferential groove which extends in a tire circumferential direction, a land portion which is zoned by the circumferential groove, and a plurality of lag grooves in which one end is open to a side of the circumferential groove and another end is terminated within the land portion, wherein the land portion has a rib-like portion which is successive in a tire circumferential direction and a wing portion which is zoned by the lag grooves, and wherein a plurality of small holes are formed on a surface of the land portion along a line connecting trailing end portions of the lag grooves adjacent to each other. | 06-14-2012 |
| 20120247631 | TRACTION TIRE TREAD FOR OFF-ROAD VEHICLE - An off-road tire tread for a tire includes a series of cavities extending into the tread surface, each cavity defined by sidewalls extending from a tread surface to an inclined bottom cavity surface, the inclined bottom cavity surface extending from a relatively deep leading cavity end to a relatively shallow trailing cavity end. The cavities are directionally oriented to operationally initiate contact with a ground surface at the leading cavity end and form a repeating circumferential pattern along a circumferential extent of the tread surface. The tire tread further may include one or more lug protrusions between each of the cavities extending outward from the tread surface. | 10-04-2012 |
| 20130105052 | HEAVY DUTY PNEUMATIC TIRE | 05-02-2013 |
| 20130186533 | TREAD FOR WINTER-USE PNEUMATIC TIRES - To provide a winter-use pneumatic tire with which the performance on ice can be enhanced and tread pattern durability can be enhanced. The tread for a winter-use pneumatic tire according to the present invention has blocks which are aligned in the circumferential direction and in which are formed respectively at least one thin incision which extends substantially parallel to a circumferential direction edge and which has a widened portion at its bottom, and at least one series of small holes comprising at least two small holes which open in a ground contacting surface of the block and extend in the inward radial direction of the tire, and the at least one series of small holes is formed in a neighboring region of the circumferential direction edge, and is formed in an intermediate portion between the circumferential direction edge and the at least one thin incision. | 07-25-2013 |
| 20140150942 | TIRE COMPRISING A TREAD WITH A FOAMED MATERIAL - The tyre comprises a tread ( | 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 |
| 20140158262 | PNEUMATIC TIRE - Provided is a pneumatic tire where a plurality of main grooves extending along the tire circumferential direction, lateral grooves extending in the direction inclined with respect to the tire width direction, and land portions partitioned by the main grooves and the lateral grooves are formed in a tread portion. The land portion includes an obtuse angle portion defined at an obtuse angle by the main groove and the lateral groove, and an acute angle portion defined at an acute angle by the main groove and the lateral groove. A plurality of holes are formed in a side wall of the land portion facing the main groove at intervals in the tire circumferential direction. The holes formed on an obtuse angle portion side are arranged at positions closer to a ground contact surface of the land portion than the holes formed on an acute angle portion side. | 06-12-2014 |
| 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 |
| 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 |
| 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 |
| 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 |
| 20150090382 | TREAD BLOCK WITH FEATURES FOR IMPROVED THERMAL WEAR - A tire tread having features that improve thermal wear performance is provided. A tread block is provided with an aperture. The aperture is positioned and sized in a manner that reduces stresses and/or strains in the tread block so as to reduce thermal wear. Certain variations in the depth and shape of the aperture are provided. Such tread feature can provide for a tire capable of operating at higher speeds for a given load. | 04-02-2015 |
| 20150114535 | Pneumatic Tire - A pneumatic tire including a closed sipe in a land portion 3 formed in a tread surface, provided with at least three cuts extending in a radiation direction from an imaginary axis that extends in a depth direction of the land portion, and that terminate in the land portion. The cuts are provided with a spiral-like twist in the depth direction, centered on the imaginary axis, and a twist angle thereof is not less than 10° and not more than 135° . Additionally, a length in the radiation direction of the cuts or a width of the cuts is formed larger at a tread surface side than at a bottom surface side. | 04-30-2015 |
| 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 |
| 20160075185 | PNEUMATIC TIRE - This disclosure aims to provide a pneumatic tire having improved noise reduction performance exhibited by a resonator. The pneumatic tire according to this disclosure has at least two circumferential grooves extending continuously on a tread surface, and has a resonator disposed on a land portion partitioned by two circumferential grooves among the circumferential grooves, the resonator having an air chamber opening toward a land portion surface at a position spaced from the circumferential grooves, one a more one-side narrow necks connecting the air chamber to one circumferential groove of the two circumferential grooves, and one or more other-side narrow necks connecting the air chamber to the other circumferential groove, the one-side narrow neck and the other-side narrow neck having cross section areas approximately identical to each other, and an extending length of the one-side narrow neck and an extending length of the other-side narrow neck being different. | 03-17-2016 |
| 20160137002 | PNEUMATIC TIRE - On a tread portion, a plurality of blocks defined by a plurality of main grooves and a plurality of transverse grooves. The main grooves annularly and continuously extend in a tire circumferential direction. The transverse grooves extend in a tire width direction so as to intersect the main grooves. The plurality of blocks include a center block located at a center in the tire width direction and having, on a surface thereof, a first groove with closed both ends and a second groove joining the first groove. | 05-19-2016 |
| 20160159161 | PNEUMATIC TIRE - Provided is a pneumatic tire where grooves and blocks defined by the grooves are formed on a tread portion, wherein the block includes: a ground contact surface; a hole portion formed in a center portion of the ground contact surface; and sipes extending radially from the hole portion which is the center of radial extension of the sipes, and the sipes are formed such that inner ends of the sipes in a radial direction terminate at a position away from the hole portion, and outer ends of the sipes in the radial direction terminate within the block. | 06-09-2016 |
