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Class 277/556 - Material other than metal


Subclass of Class 277 - Seal for a joint or juncture
Definition: Bias for the flexible projection consisting of a substance
No. of patents: 73
Last issue date: 07/15/2008


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NumberTitleIssue Date
7399157Cooling module arrangement with a sealing element
In a cooling module arrangement with a seal element for a motor vehicle having an engine including a cooling fan with a fan housing component connected to the engine and a fan cowl component connected to a radiator of the motor vehicle with a gap provided between th...
07/15/2008
7370866Sleeve element having a biasable end region, apparatus including same, and method of use
A sleeve element having at least one end region configured to be biased into a laterally adjacent recess formed in one of a piston element surface and a bore surface is disclosed. A seal assembly is disclosed including two sleeve elements, each sleeve element having...
05/13/2008
7341258Cammed seal assembly with sealing ring having an angled leg portion and foot portion with elastomeric energizer element
A seal assembly seals first and second operational surfaces spaced apart by a gap. The first surface includes a seal groove having a base surface and first and second side surfaces. A sealing element in the seal groove has a foot portion extending parallel to the ba...
03/11/2008
7229102Fluid coolant union
A coolant union includes a seal assembly having a first seal member and a non-rotating second seal member. At least one of the annular sealing surfaces presented by the rotating seal member and the non-rotating seal member is chamfered such that the chamfered sealin...
06/12/2007
7195246Sealing material
A sealing material for sealing liquid composed of a seal main body of resin, having a U-shaped cross section and a concave groove opening to an axis direction, and an O-ring of rubber fit to the concave groove of the seal main body used for medical appliances and pa...
03/27/2007
7185894Watertight corrugated pipe gasket
A corrugated pipe saddle gasket is provided having a leading member, a primary sealing member, and an arm member, with the gasket having a contoured surface extending along at least a portion of the bottom of the primary sealing member and the arm member correspondi...
03/06/2007
7182346Multistage oil seal against different cutting fluids for a machine tool motor
A multistage oil seal (4) includes a plurality of lips (7a, 7b, 7c) in a plurality of stages disposed around a motor shaft (1) of a machine tool along the axis of the motor shaft to protect internal members of ...
02/27/2007
7147774Sliding plate filter with segmented sealing ring
A filtration apparatus for use in polymer processing includes a housing having an internal bore for directing polymer flow and a channel oriented transversely to the bore. A slide plate for supporting filters is movable through the channel and across the bore. An an...
12/12/2006
7134669Sealing ring
A sealing ring has an annular disk with at least one fastening part secured on a first machine part and at least one sealing part that, when the sealing ring is mounted, sealingly rests against a second machine part. The annular disk is fastened without intermediate...
11/14/2006
7083170Rod or piston primary seal
A rod or piston primary seal, which includes a primary seal (2) facing the space (1) to be sealed and a secondary seal (3) facing away from it, in which the primary seal (2) is fitted into the groove (4), of a holding element (5...
08/01/2006
7080841Hub seal adapter
A hub seal adapter has an outer diameter and thickness dimensioned to removably fit into the internal bore of a standard automotive hub in the same position that the grease seal would normally occupy, and be retained in the hub by the same snap ring as would be used...
07/25/2006
7055824Lip-type high pressure seal
A high pressure shaft seal (10A) for use in a refrigerating machine wherein carbon dioxide is used as a refrigerant in lieu of “Freon”. The seal has a sealing lip (24A) made of a non-elastomeric polymer material such as nylon that has a small gas p...
06/06/2006
7052020Hydrodynamic rotary seal
A hydrodynamically lubricating rotary seal for partitioning a lubricant from an environment has a generally circular seal body, a sloping dynamic sealing lip, and an energizer. The dynamic sealing lip is provided for establishing compressed sealing relation with a r...
05/30/2006
7025357Shaft seal having lip supports
A shaft seal includes an elastomeric annular body having an outwardly protruding annular lip. An annular outer case is embedded into the body. An annular insert is positioned adjacent the outer case. An annular inner case is embedded into the body adjacent the inser...
04/11/2006
7021633Low friction fluid seal device with additive to rubber compound
A fluid seal device for use in sealing an annular space between an internal surface of a cylinder and a member therein having an outer cylindrical surface and being formed at least in part from rubber. An oleamide additive is included in the rubber compound comprisi...
04/04/2006
7004474Seal for an endless track
A seal for an endless track has a cross section having a centerline parallel to an axis of the seal and a configuration symmetric with respect to the centerline of the cross section. The seal can include an elastically deformably configured portion having a cross se...
02/28/2006
7000744Shock absorber cylinder head scraper
A vehicle shock absorber is provided that includes a piston rod. A cylinder head having a bore defining an axis supports the rod within the bore. A scraper is arranged proximate to the cylinder head and includes a hole with the rod arranged within the hole. The scra...
02/21/2006
6955359Seal assembly and crawler-track connection structure
A seal assembly has simple assembly structures, and provides secure sealing effects. A crawler-track connection structure allows the seal assembly to be easily mounted, and securely prevents overflow of a lubricant and the like to the outside. A pair of seal rings (...
10/18/2005
6928815Master cylinder having a seal retainer
The present invention is directed to a master cylinder provided with an annular seal member (S1) having an annular groove of U-shaped cross section formed on its one end face, and a substantially annular seal retainer (30) for restricting at least axia...
08/16/2005
6921081Annular seal
According to the invention a seal—arranged between a radially inwardly facing outer boundary surface of an annular sealing gap and a radially outwardly facing inner boundary surface of the sealing gap—is characterized by a sealing ring having a sealing surface w...
07/26/2005
6918595Seal for high-pressure pumping system
A high-pressure pumping system including an energizing seal component having an aperture extending therethrough and a seal jacket component having a base and a toroidally-shaped flared membrane extending from the base. The body and the flared membrane are monolithic...
07/19/2005
6913266Sealing device
A sealing device for a shaft (2) or rod which is movably disposed in a guide arranged between a high-pressure space (10) and a low-pressure area (11) of a pressure-resistant housing (1) bounding the high-pressure space (10), and wh...
07/05/2005
6910692Composite elastomeric seal for sealing fluid lines
A composite elastomeric seal for sealing fluid line members is provided. The composite seal comprises an outer U-shaped seal body and an inner elastomeric portion. The U-shaped seal body comprises inner and outer extending arms, each arm having a shaped contour and ...
06/28/2005
6883804Seal ring having secondary sealing lips
Seal for the static or dynamic sealing of joints, machine parts or other components or structures such as may be found in choke, kill, or other auxiliary line strings for marine oil or gas well risers, hydraulic or pneumatic cylinders or other actuators. The seal ma...
04/26/2005
6726219Air damper with graphite coated lip seal
The air damper includes a piston reciprocating within a cylindrical housing. The piston includes a lip seal which is coated with a minimum of 0.5%/seal part weight graphite powder/molybdenum disulfide. This provides for increased smoothness of operation of the air d...
04/27/2004
6688603Radial shaft sealing ring
A radial shaft sealing ring, comprising a sealing member made of plastics, especially PTFE compound material, and including a sealing lip which has a portion in sealing engagement with the surface of a shaft towards the medium side is characterized in tha...
02/10/2004
6607197Rotary seal with relief angle for controlled tipping
A sealing device for sealing the gap between two relatively moving members is provided with a pivot point on its cross-sectional perimeter. As pressure against the seal increases, the seal rotates about the pivot point, resulting in an increased sealing s...
08/19/2003
6513811Air damper with graphite coated lip seal
The air damper includes a piston reciprocating within a cylindrical housing. The piston includes a lip seal which is made of rubber or thermoplastic elastomer impregnated with a minimum of 3% molybdenum/seal part weight, or a minimum of 2% polytetrafluoro...
02/04/2003
6502825Pressure activated cloth seal
A seal assembly includes a cloth seal for sealing a cavity between a first mating body and a second mating body, the seal dividing the cavity into a high pressure region and a low pressure region. The cloth seal has a shim assemblage and a cloth assemblag...
01/07/2003
6164660Rebuildable radial lip seal
A rebuildable radial lip seal having a replaceable sealing element for sealing around a movable shaft and adapted for removable placement within a seal housing. The rebuildable radial seal comprises an annular sealing body which extends radially between a...
12/26/2000
6120036Extrusion resistant hydrodynamically lubricated rotary shaft seal
A hydrodynamically lubricated interference type rotary shaft seal suitable for environmental exclusion and high pressure lubricant retention which incorporates composite multiple modulus construction and a non-planar flexible environmental edge heel geome...
09/19/2000
5791657Seals containing composite non-extrusion springs
A wellhead seal assembly for sealing between first and second pipe members comprises an annular elastomeric body having, in cross-section, a generally rectangular shape comprising a first flat radial surface, a second flat radial surface, an inner circumf...
08/11/1998
5738358Extrusion resistant hydrodynamically lubricated multiple modulus rotary shaft seal
A hydrodynamically lubricated interference type rotary shaft seal suitable for environmental exclusion and high pressure lubricant retention which incorporates composite multiple modulus construction and a non-planar flexible environmental edge heel geome...
04/14/1998
5472216Seal ring for valve stem
A seal assembly for a valve stem has a primary seal ring with a relatively rigid gland member having an annular base of generally rectangular cross-section and a pair of flexible sealing lips formed in one piece with the base and extending outwardly from ...
12/05/1995
5433452Sealing device
A sealing device is arranged in a groove between a first machine component and a second machine component. If the sealing device, comprising the sealing ring and the biasing element, is subjected to a hydraulic pressure from the high pressure side and/or ...
07/18/1995
5423557Flexible joint with jacket
A flexible joint to ensure static imperviousness between one external medium and one internal medium, and dynamic imperviousness between the two portions of the internal medium. The joint includes a central core in the form of a spring surrounded by three...
06/13/1995
5380016Radial lip seal
A radial lip seal for sealing about a pin of a hinge joint is disclosed. Such seal includes an outer mounting ring, a rubber flex ring mounted inside the mounting ring, a tension ring mounted inside the flex ring, and an inner elastomeric seal ring mounte...
01/10/1995
5288086Composite rod wiper
A composite rod wiper for an end cap of a hydraulic cylinder is disclosed for wiping the cylindrical exterior surface of an extensible and retractable rod extending through the end cap. The rod wiper includes a wiper ring of a first, hard and wear resista...
02/22/1994
5269537Composite radial seal
A composite radial seal for sealing the rod end of a hydraulic cylinder or suspension strut is disclosed. The composite seal includes a high abrasion resistant elastomeric seal ring having an elongated body. The body has a pressure end and a non-pressure ...
12/14/1993
5249813Sealing ring structure
A sealing ring structure for effecting a fluid seal between a stationary member having an annular groove and a cylindrical member having a longitudinal axis movable relative to the groove includes a sealing ring disposed in the groove along with an outer ...
10/05/1993
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