| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 277500000 |
Circumferential contact seal for other than piston
| 512 |
| 277358000 |
Relatively rotatable radially extending sealing face member (e.g., face, mechanical, etc.)
| 245 |
| 277434000 |
Piston ring or piston ring expander or seat therefor
| 185 |
| 277409000 |
Close proximity seal (e.g., contactless, fluent, etc.)
| 174 |
| 277346000 |
Diverse and distinct dynamic seals
| 85 |
| 277355000 |
Brush seal
| 82 |
| 277357000 |
For rotary piston | 2 |
| 20090194949 | Shaft for viscous sealant systems - A sealing system for sealing between an aperture of a machine housing and a rotating machine-shaft protruding through the aperture, said sealing system comprising: (i) a stuffing box for encasing the aperture of the machine housing and a segment of said shaft and, (ii) a viscous fluid type sealant within said stuffing box, wherein the shaft is concentric about its axis of rotation and said segment has at least one variation in its effective external diameter thereby increasing the surface area thereof, in contact with the liquid sealant. | 08-06-2009 |
| 20140159313 | AUTOMATIC COMPENSATION MECHANISM FOR HINGE SEAL GAP IN SPHERICAL COMPRESSOR - Disclosed is an automatic compensation mechanism for a hinge seal gap in a spherical compressor. A cylindrical hinge is formed around a central pin ( | 06-12-2014 |
| 277354000 |
Helically threaded part | 2 |
| 20100295249 | Ball screw lubricative sealing device - The invention provides a ball screw lubricative sealing device having a simplified lubrication mechanism. It is attachable to an installed standard ball screw nut, capable of retaining larger amount of lubricant and long supply of lubricant to the contacting screw parts, and further includes a sealing function. It includes: generally cylindrical case members having attachment part to be attached to both ends of a screw nut, respectively; plural thin seal plates made of lubricating oil impregnated felt-like fiber material which is a three-dimensionally crosslinked plastic fiber and resilient rubber members, and having a hole each and fitted inside said case member in such a state that they circumferentially overlap with each other, the hole having a shape corresponding to a lateral cross-sectional shape of a screw groove of ball screw shaft; and a plastic wiper fitted with a space from the thin seal plates inside each of the case member. | 11-25-2010 |
| 20100301565 | Ball screw lubricative sealing device - The invention provides a ball screw lubricative sealing device having a simplified lubrication mechanism. It is attachable to an installed standard ball screw nut, capable of retaining larger amount of lubricant and long supply of lubricant to the contacting screw parts, and further includes a sealing function. It includes: generally cylindrical case members having attachment part to be attached to both ends of a screw nut, respectively; plural thin seal plates made of lubricating oil impregnated felt-like fiber material which is a three-dimensionally crosslinked plastic fiber and resilient rubber members, and having a hole each and fitted inside said case member in such a state that they circumferentially overlap with each other, the hole having a shape corresponding to a lateral cross-sectional shape of a screw groove of ball screw shaft; and a plastic wiper fitted with a space from the thin seal plates inside each of the case member. | 12-02-2010 |
| 277433000 |
Centrifugal force affects change in displacement, shape, or contact | 1 |
| 20140001707 | Static-Dynamic Seal Assembly with Hysteresis-Inducing Passages | 01-02-2014 |
| 277356000 |
For journal box (e.g., railway car journal, etc.) | 1 |
| 20080203672 | PRESSURE-ENERGIZED SHAFT SEAL - A generally cylindrical shaft seal with an axial opening is disclosed having annular “lips” or “legs” on one or both ends that are separated by a fluid-filled cavity. The seal is adapted to seal between a support or housing holding the seal and a generally cylindrical shaft passing axially through the seal. Fluid, under pressure, may enter the cavity and urge the lips or legs in a radial direction which enhances the sealing engagement of the seal member to the shaft and the housing. In certain embodiments, the seal has a concave inner surface to minimize the contact area (and hence the friction) between the seal and the movable shaft. The outer circumference of the seal may be equipped with one or more O-ring seals for sealing to the housing or support. The seal may be fabricated from natural or synthetic polymers, metal or composite materials. | 08-28-2008 |
| Entries |
| Document | Title | Date |
|---|
| 20080258402 | Sealing device for joint section of robot and articulated robot having the same - A sealing device provided to a joint section of a robot. The sealing device includes overlapped seal portions having a multi-stage configuration, provided for a driving mechanism incorporated into the joint section. The overlapped seal portions include a first seal portion including a first contact seal element sealing a first inter-member gap defined adjacent to a lubricant retaining section provided in the driving mechanism; and a second seal portion arranged outside the first seal portion and including a second contact seal element sealing a second inter-member gap defined in a circumferential wall of the joint section, the circumferential wall defining an accommodation space for accommodating the driving mechanism. | 10-23-2008 |
| 20080309016 | SEALING DEVICE - To prevent falling away of a backup ring ( | 12-18-2008 |
| 20090066031 | Compound sliding seal unit suitable for atmosphere to vacuum applications - The present invention is a compound sliding seal unit of markedly reduced size and height dimensions which is employed as a discrete assembly for both the passage across and the at-will height adjustment of a mounted, rotatable shaft which extends from the atmospheric environment portion into the vacuum environmental portion of an ion implanter apparatus. The extended, rotatable shaft is typically fashioned as either a rotatable hollow tube or conduit (suitable for the passage of electrical components) and/or as a rotatable support suitable for the mounting of a pivotal scanning radial arm translation system. | 03-12-2009 |
| 20090096174 | BLADE OUTER AIR SEAL FOR A GAS TURBINE ENGINE - An air seal assembly includes a featherseal engaged between adjacent turbine engine components to close a gap therebetween. The featherseal includes a first lateral tab and a second lateral tab which defines a tab space therebetween. The tab space locks the featherseal into the turbine engine component to prevent fore-aft movement thereof. | 04-16-2009 |
| 20090194948 | Locking Joint Seal - A locking joint seal includes a ring-shaped body made from poly tetra fluoroethylene and having a first end and a second end. The first and second ends each include mutually engageable first and second locking features. The first locking feature including a first axially extending portion overlapping a second axially extending portion of the second locking feature in an assembled condition. | 08-06-2009 |
| 20090267304 | Flight surface seal - A seal for sealing a gap between a first ( | 10-29-2009 |
| 20090315270 | Seal Arrangement - The invention relates to a sealing arrangement for an internal combustion engine ( | 12-24-2009 |
| 20100044966 | COUPLING GUARD SYSTEM - A guard system for a coupling that connects a first component to a second component in a pressurized machinery system includes a coupling guard moveable between an open position, which allows access to an internal region of the coupling, and a closed position, which forms a seal surrounding the coupling from the first component to the second component. The system also includes a guide for directing movement of the coupling guard. | 02-25-2010 |
| 20100194051 | BELT DISCHARGER - The invention relates to a belt discharger ( | 08-05-2010 |
| 20100259011 | SEAL RING OF A MECHANICAL SEAL ASSEMBLY - The invention relates to a seal ring of a mechanical seal assembly, comprising a base body made of a material including at least one carbide material and a coating provided at the base body and creating a sliding surface, said coating consisting of a diamond material. The inventions is characterized in that the base body is formed of a two-component material by embedding particulate regions made of a diamond material compatible with the diamond material of the coating into the material comprising at least one carbide. | 10-14-2010 |
| 20100308541 | STRIP-SEALING GATE - The invention relates to a strip sealing gate ( | 12-09-2010 |
| 20110133411 | SEAL | 06-09-2011 |
| 20110148045 | HOLLOW SEALING STRUCTURE AND MANUFACTURING METHOD FOR HOLLOW SEALING STRUCTURE - A manufacturing method for a hollow sealing structure, includes, a process for filling a recessed portion in a principal surface of a substrate with a first sacrificial layer, a process for forming a functional element portion on the principal surface of the substrate, a process for forming a second sacrificial layer on the functional element portion so as to be connected to a part of the first sacrificial layer, a process for forming a covering portion over respective surfaces of the first and second sacrificial layers, a process for circulating a fluid for sacrificial layer removal through an opening in the covering portion in contact with the first sacrificial layer, thereby removing the first and second sacrificial layers, and a process for closing the opening. | 06-23-2011 |
| 20110272890 | FIRESEAL - A fireseal for sealing around a cylindrical shaft or pipe. The fireseal is helical and has an expanded cross-section in a central portion intermediate its ends. | 11-10-2011 |
| 20120080850 | WATERPROOFING DEVICE FOR AN ACTUATOR - Device for sealing an actuator includes a drive shaft ( | 04-05-2012 |
| 20120139185 | SEAL MECHANISM - According to an aspect of the present invention, there is provided a seal mechanism, including: a plate spring having a main body portion which has a curved shape and a pair of hook portions which are formed by bending the main body portion; and a seal member having a seal surface and a pair of projecting portions which are formed on an opposite side of the seal surface to catch the hook portions. | 06-07-2012 |
| 20120153574 | CHAMBER INCLUDING A SEALED CONNECTION ASSEMBLY SLIDING INSIDE A TRANSLATION PLANE - A chamber includes a sealed connection assembly sliding inside a translation plane, having two rigid parts, one of which comprises a groove. A planar seal and at least one O-ring seal are positioned in the groove, with the O-ring seal under the planar seal. An active surface of the planar seal, which projects above the groove, is compressed against a planar bearing surface of the other rigid part. The chamber can be used in a device for applying a plastic film onto a spectacle lens, in order to move the lens inside a variable-pressure space. | 06-21-2012 |
| 20120292856 | BLADE OUTER SEAL FOR A GAS TURBINE ENGINE HAVING NON-PARALLEL SEGMENT CONFRONTING FACES - A blade outer air seal for a gas turbine engine includes an arcuate first seal segment and an arcuate second seal segment. The first seal segment extends circumferentially to a first confronting face. The second seal segment extends circumferentially to a second confronting face. The first confronting face is positioned adjacent the second confronting face defining a gap therebetween. The confronting faces are radially non-parallel at a first engine operating point where each seal segment has a first temperature distribution profile and a first pressure distribution profile. The confronting faces are substantially radially parallel at a second engine operating point where each seal segment has a second temperature distribution profile and a second pressure distribution profile, which second profiles are different than the first profiles. | 11-22-2012 |
| 20120292857 | Multiple Stiffness Seal for Imaging Component Surfaces - An end seal for use in an image forming apparatus that provides increased contact pressure using projecting ribs at nip locations formed between an end of a roll and the ends of other components such as a doctor blade or flap seal and lower contact pressure along the end of the roll. Contact pressure may be varied by changing the thickness along portions of the projecting ribs or the use of transverse ribs between each of the projecting ribs and a second surface of the end seal. | 11-22-2012 |
| 20130020769 | Sealing Member and Its Manufacture - A sealing member is obtained by molding a carbon fiber composite material ( | 01-24-2013 |
| 20130056936 | METHOD AND DEVICE FOR PRODUCING SEALING RINGS - The invention relates to a method for producing sealing rings open to the outside or to the inside, which method comprises the steps of providing a tube, arranging the wall of the tube between at least one first roller that is parallel to the tube and has a first outside contour, and at least one second roller that is parallel to the tube and has a second outside contour; carrying out a relative movement of the at least one first roller and the at least one second roller towards each other; forming at least one sealing ring by a relative movement of the wall of the tube between the at least one first roller and the at least one second roller, wherein the cross-section of the at least one sealing ring is defined substantially by the space between the first and second outside contours; and severing the at least one sealing ring from the tube. The invention also relates to a device for carrying out the method and to a selling ring produced in said manner. | 03-07-2013 |
| 20130062833 | DEVICE FOR FIXING ELASTIC ELEMENTS - The invention relates to a device for sealing a gap between parts that are moved relative to one another, namely a fixing part, for fixing at least one elastic sealing element at an edge thereof, and a stop part along which another edge of at least one elastic sealing element runs, wherein the fixing part comprises, running along the gap, at least one groove in which are inserted one or more anchoring parts that engage through or around the sealing element and/or a retaining element that retains same. | 03-14-2013 |
| 20130134679 | NON-CONTACTING SEAL ARRANGEMENT, ELECTROMECHANICAL SYSTEM HAVING A NON-CONTACTING SEAL ARRANGEMENT, AND METHOD OF FABRICATING A NON-CONTACTING SEAL ARRANGEMENT - Disclosed is a non-contacting seal arrangement, an electromechanical system having a non-contacting seal arrangement, and a process of fabricating a non-contacting seal arrangement. The non-contacting seal arrangement includes a shape-memory alloy portion, a non-contacting seal, and an ingress gap. The ingress gap is between the non-contacting seal and the shape-memory alloy portion, between a surface of an electromechanical system and the non-contacting seal, or between the surface of the electromechanical system and the shape-memory alloy. An increase in temperature expands the non-contacting seal and the shape-memory alloy portion substantially maintains the ingress gap. The electromechanical system includes a rotating component and a surface extending around at least a portion of the rotating component and forming the ingress gap. The process includes securing the shape-memory alloy portion, securing the non-contacting seal, and forming the ingress gap. | 05-30-2013 |
| 20130147122 | SEALING MEMBER COMPRISING WOVEN FABRIC - A sealing member for preventing leakage of powder from a rotating body, can prevent escape of powder under low load and with little yarn, which has excellent wear resistance. | 06-13-2013 |
| 20130228976 | M Thermodynamic resonant engine with a rotary variant - A 3-D geometric separation of old engine compression-ignition-expansion chamber in compression-ignition chamber and expansion chamber with a parametric delay between ignition and expansion ( and excluding the intake valves and exhaust valves) what to permit a symmetric configuration for a totally rotary engine and a special arrangements(as is revealed in drawings and explained in description) of mechanical and electrical components acting resonant with thermodynamic processes against of internal and external absorption's processes using maximal the caloric energy of a combustible and creating a cyclic thermodynamic parametric resonant loop, process maintained from increasing or decreasing the dynamic pressure and thermo gradient and mechanically mirrored in a increasing or decreasing engine RPM or it's new parameter, the ignition timing delay. | 09-05-2013 |
| 20130277916 | Seal Member Having Excellent Wear Resistance, and Seal Structure Using Same - A seal member which is used in a seal part comprising a molded rubber article produced by vulcanizing a rubber composition comprising, a hydrogenated nitrile rubber (A), carbon black (B), and carbon black (C) and/or carbon fiber (D), wherein carbon black (B) has a DBP oil absorption of 250 to 450 mL/100 g, carbon black (C) has a DBP oil absorption of 200 mL/100 g or less, and carbon fiber (D) has an average fiber length of 0.05 to 2 mm and an average fiber diameter of 5 to 30 μm; and wherein, based on 100 parts by mass of the hydrogenated nitrile rubber (A), the amount of carbon black (B) is 5 to 15 parts by mass, the total amount of carbon black (C) and/or carbon fiber (D) is 3 to 35 parts by mass, and the total content of the fillers is 40 parts by mass or less. | 10-24-2013 |
| 20130313785 | LOW-FRICTION SEAL RING WITH INEXPENSIVE DIAMOND COATING - The present invention refers to a seal ring for a mechanical seal, comprising: a base body ( | 11-28-2013 |
| 20130328272 | SEALING DEVICE - A sealing device for sealing at least one underpressure or overpressure zone adjoining a surface which is moved in a movement direction in a paper, tissue or cardboard machine, includes at least one sealing element which is located opposite the moved surface and has at least one feed channel for a lubricant. In order to considerably decrease the wear of a sealing element uniformly over the entire length thereof, the at least one feed channel ends in a supply channel, which is arranged at the beginning of the sealing element in the movement direction. | 12-12-2013 |
| 20140035232 | PROTECTIVE COVER AND MANUFACTURING METHOD THEREOF - A protective cover including a bellows portion wherein a plurality of valleys and peaks are arranged alternately. The valleys include a plurality of large valleys and a plurality of intermediate valleys whose inside and outside diameter dimensions at bottoms are greater than those of the large valleys, and the large valleys and the intermediate valleys are arranged alternately. Small valleys whose inside and outside diameter dimensions at bottoms are greater than those of the intermediate valleys are respectively arranged between the large valleys and the intermediate valleys. The peaks are respectively arranged between the large valleys and the small valleys as well as between the intermediate valleys and the small valleys, and apexes of the peaks have a same outside diameter dimension as one another. The apexes of the peaks are made thinner than the bottoms of the large valleys. | 02-06-2014 |
| 20140070495 | SEAL ASSEMBLY - A seal assembly for sealing at least one negative or positive pressure zone which adjoins a surface which is perforated and moves in a movement direction in a machine for making paper, tissue or cardboard, has at least one sealing element which lies opposite the moving surface and is arranged in a receptacle which can be moved to change the format of the negative or positive pressure zone. In order to simplify the adjustability of the receptacle in order to position the sealing element, there is a signal transmitter which is connected directly or indirectly to the sealing element and the signal of which can be received on that side of the moving surface which faces away from the sealing element. | 03-13-2014 |
| 20140138918 | SEAL ASSEMBLY INCLUDING PARTIALLY FILLED GAPS - A seal assembly between a rotor and a stator is disclosed. In one embodiment, the seal assembly includes: a rotor; a stator positioned around the rotor; and a plurality of seal leaves positioned between the rotor and the stator, the plurality of seal leaves circumferentially stacked around the rotor to define a seal ring between the rotor and the stator, wherein gaps between adjacent seal leaves are partially filled, such that contact faces and residual gaps are between adjacent seal leaves, wherein the contact faces generate friction to dampen vibrations during operation. Such damping effects still allow the compliant motion of the seal leaves with minimal leaf vibration. Also, thicker and more resilient leaves may be applied with reduced leakage through the root gaps. | 05-22-2014 |
| 20140291938 | BELLOWS FOR A GANGWAY BETWEEN TWO HINGE-LINKED VEHICLES, AN AIRCRAFT BOARDING STAIRS, OR AN AIRCRAFT BOARDING BRIDGE - A bellows for a gangway between two hinge-linked vehicles, an aircraft boarding stairs or an aircraft boarding bridge, has several bellows frames in the longitudinal direction of the bellows. The bellows has an at least single-layered reinforcement, which is coated on at least one side with a plastic material. The reinforcement has guides for the bellows frames. The coated reinforcement is tensioned in the circumferential direction of the bellows at least between two bellows frames. | 10-02-2014 |
| 20140327212 | FIRE RETARDANT HIGH TEMPERATURE DRYER SEALS AND RELATED METHODS - Fire retardant dryer seals and related methods are provided herein. A fire retardant dryer seal can include an elongate, flexible base substrate having a first end and a second end. The base substrate can also have a first surface and a second surface opposite the first surface. The first end and the second end of the base substrate secured together so that the base substrate forms at least a portion of an annular shape. A heat resistant coating disposed on at least the first surface of the base substrate. | 11-06-2014 |
| 20140353919 | SURFACE POSITIONING FOR COMPRESSIBLE SEAL ARRANGEMENT - An apparatus is disclosed, which may include a first member having a first planar surface, and a first displacing structure. The first displacing structure may have a displacing surface and a latching surface. The apparatus may also include a second member having a second planar surface and a second displacing structure. The second displacing structure may have a displacing surface and a latching surface. A compressible seal may be affixed to the second planar surface. Contact between the displacing surfaces during parallel movement of the first planar surface relative to the second planar surface may create a separation between the planar surfaces greater than the compressible seal height. Positioning of the displacing surfaces past each other during parallel movement of the first planar surface relative to the second planar surface may initiate the compression of the compressible seal between the planar surfaces. | 12-04-2014 |
| 20140367920 | PIECE OF ABRADABLE MATERIAL FOR THE MANUFACTURE OF A SEGMENT OF AN ABRADABLE RING SEAL FOR A TURBOMACHINE, AND PROCESS FOR THE MANUFACTURE OF SUCH A PIECE - A molded piece | 12-18-2014 |
| 20140367921 | SEGMENT OF AN ABRADABLE RING SEAL FOR A TURBOMACHINE, AND PROCESS FOR THE MANUFACTURE OF SUCH A PIECE - A segment of an abradable ring seal for a turbomachine, includes: a reinforcing support; a composite fabric including fibres impregnated with polymerised resin, and a track of abradable material. The composite fabric is interposed between the reinforcing support | 12-18-2014 |
| 20160101489 | PROCESS OF FORMING AND A SEAL FOR AN ENGINE - A process of forming a turbine engine seal includes the steps of: providing a flat strip of material; roll forming the flat strip of material forming an asymmetric profile in the flat strip of material; coiling the formed asymmetric profile into an overlapping ring shape; cutting the circular shape to a predetermined length; and joining ends of the predetermined length forming the seal. The seal includes at least two peaks that are formed on opposing sides of a gap. The at least two peaks contact opposing sides of a U shaped profile at a zero radius. The asymmetric profile includes a circular shape and the ends are joined. | 04-14-2016 |
| 20160178060 | SEAL SYSTEM INCLUDING WATER MANAGEMENT FEATURE | 06-23-2016 |
| 20180022297 | SEAL FOR VARIABLE DYNAMIC GAPS | 01-25-2018 |
