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| Number | Title | Issue Date |
| 7963526 | Prelubricated multi-lipped radial shaft seal with large radial offset accommodation A radial shaft seal is provided for accommodating large radial offset of the shaft relative to a housing. The seal includes an annular retainer insert provided for engaging the seal to a fixed housing. An annular elastomeric seal body is molded to the retainer inser... | 06/21/2011 |
| 7722052 | Rotation shaft seal A rotation shaft seal to prevent inner leak from increasing along high-pressurization of sealed gas. A staged portion is formed on an outer case, and an end face on an inner side of the staged portion is covered with rubber to form a ring rubber portion of which end... | 05/25/2010 |
| 7347424 | Shaft seal having integrated removal feature A dynamic shaft seal assembly has inner and outer cases that are clamped together to secure a seal element therebetween for dynamic sealing about a rotatable shaft. The inner case is formed with integral pull tabs that are engageable by a seal removal tool to facili... | 03/25/2008 |
| 7341258 | Cammed 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 |
| 7240904 | Secondary sealing element A secondary sealing element comprises a base body (12) made of a synthetic material and comprising a base portion (13) and a seal portion (14) which each comprise coaxially aligned, axially adjacent through bores (17, 31) for the passage ... | 07/10/2007 |
| 7234923 | Scroll fluid machine having a dust seal fitted within annular groove and having ends overlapped in the wider portion of the annular groove In a scroll fluid machine, an orbiting scroll engages with a stationary scroll to form a sealed chamber in which fluid can be compressed toward a center with revolution of the orbiting scroll with respect to the stationary scroll. An annular groove is formed near th... | 06/26/2007 |
| 7040628 | Large diameter polytetrafluoroethylene or like seals A large-diameter PTFE seal. The lip of the seal is made from a long strip of PTFE bound together at the ends with the aid of a patching tape to form a closed loop. The loop is then flanged and placed between an inner and an outer case, together with a rubber-like ga... | 05/09/2006 |
| 7025357 | Shaft 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 |
| 6945537 | Sealing ring A sealing ring comprising a bearing ring with a radial flange and a sealing sleeve, which at its free end is connected to a thickened, surrounding bulge. ... | 09/20/2005 |
| 6933890 | Method and system for positioning mobile units based on angle measurements A method and system for positioning mobile units using angle measurements taken by neighboring mobile units is disclosed. A selected mobile unit and mobile units in the vicinity of the selected mobile unit are selectively instructed to measure and report information... | 08/23/2005 |
| 6783131 | Neck seal A neck seal is disclosed for use in an oil film bearing assembly for a roll in a rolling mill, the roll having a neck with an intermediate tapered section leading to a reduced diameter end section contained within a sleeve, with the sleeve being fixed in relation to... | 08/31/2004 |
| 6764080 | Rotation shaft seal A rotating shaft seal provided with a seal element, arranged between a housing and a rotation shaft, which contacts the rotation shaft, and a seal member made of rubber having a lip end portion, disposed on a fluid storing chamber side to the seal element, which con... | 07/20/2004 |
| 6702294 | Seal unit for mechanical members rotating relative to each other, in particular for foundry rollers Seal unit for mechanical members rotating relative to each other, in particular foundry rollers, including a tubular member which can be fitted on a first of said rotating members, a first and a second annular sealing member surrounding the tubular member... | 03/09/2004 |
| 6640943 | Shock absorber with sealing ice scraper A shock absorber (2) includes a piston assembly (6) and a damping fluid cylinder (4) having a first end (22) and defining a damping fluid chamber (56). The piston assembly includes a piston (14) mounted to a shaft (8). The piston divides the damping fluid... | 11/04/2003 |
| 6450503 | Box-type seal assembly, in particular for vehicle axles A seal assembly to be inserted between two members in relative rotation, including a bushing that is fitted to the first member and is connected with a gasket, wherein both connections form fluid-tight seals. The gasket includes a rigid reinforcement that... | 09/17/2002 |
| 6367811 | Rotation shaft seal A rotating shaft seal provided with a seal element, arranged between a housing and a rotation shaft, which contacts the rotation shaft, and a seal member made of rubber having a lip end portion, disposed on a fluid storing chamber side to the seal element... | 04/09/2002 |
| 6267383 | V-shaped seal with anti-extrusion section A sealing-device having a body section and an anti-extrusion section is shown, the body section being disposed on top of the anti-extrusion section. The body section includes sealing surfaces for enclosures in which the sealing device is located. the anti... | 07/31/2001 |
| 6123514 | Sealing structure for compressors A sealing structure for the shaft of a compressor. The sealing apparatus includes an inner ring, and outer ring, and a support ring. The inner ring and the outer rings have flexible annular lips that contact the surface of the rotary shaft. The support ri... | 09/26/2000 |
| 6116610 | Spring energized plastic seals A seal between a pair of relatively axially movable coaxial components is provided by a spring energised plastic seal which is located axially with respect to the outer component to separate a high pressure fluid area from a low pressure fluid area, the s... | 09/12/2000 |
| 6007106 | Hydraulic coupling A hydraulic coupling employing a polymeric elastomeric sealing member to provide an excellent seal under pressure. The polymeric elastomeric seal additionally has high resistance to acids, alkalis, hydrocarbons, ketones, ethers, esters, alcohols and salt ... | 12/28/1999 |
| 5992856 | Rotary, reciprocating seals with double spring and separating band rings A seal assembly suitable for static, rotary and reciprocating sealing between the shaft and the housing is provided and includes a seal ring in the shape of an annulus having a body portion with an inside flange and an outside flange extending axially the... | 11/30/1999 |
| 5979904 | Rotary reciprocating seals with exterior metal band A seal assembly is provided for rotary and reciprocating sealing between a shaft and a housing. The seal assembly includes a seal ring in the shape of an annulus having a body portion with an inside flange and an outside flange extending longitudinally th... | 11/09/1999 |
| 5897119 | Floating wiper seal assembly A floating wiper seal assembly for sealingly engaging a reciprocating shaft within a hydraulic pump or cylinder housing. The seal assembly includes a generally cylindrical elastomeric seal body configured for reception within a cylindrical bore of the hou... | 04/27/1999 |
| 5860680 | Sealing system--anti collapse device A sealing system for a rotatable fluid conduit coupling or swivel, in particular a swivel for the off-shore oil and gas exploitation or the like, the coupling comprising an inner or first part, an outer or second part concentrically surrounding the first ... | 01/19/1999 |
| 4921260 | Lip seal device for water pumps A lip seal device for use with an automobile water pump having a simple structure and which can be manufactured with a compact size and at a low cost. The lip seal device includes a housing, a rotary shaft rotatably supported in the housing, a case throug... | 05/01/1990 |
| 4834397 | Lip seal device having an annular groove A lip seal device for sealing the gap between a housing and a rotary shaft comprises a case surrounding the rotary shaft, a lip seal attached inside the case, support means for holding the lip seal on the other circumferential portion thereof and seal mea... | 05/30/1989 |
| 4822059 | Dual lip seal device A lip seal device for sealing the gap between a housing and a rotary shaft comprises a case surrounding the rotary shaft, a plurality of lip seals fitted inside the case and including at least two lip seals, support means for holding the lip seals on the ... | 04/18/1989 |
| 4440404 | Packing arrangement A packing assembly provides a seal for an annular space between a pump plunger and a pump body of a reciprocating plunger pump. The pumping assembly includes an elastomeric header ring disposed in a high pressure end of the annular space for preventing mi... | 04/03/1984 |
| 4349205 | Annulus sealing device with anti-extrusion rings For sealing between an inner part and an outer part which are generally concentrically related so as to have an annulus between them, an elastomeric sealing annulus is axially sandwiched between two beveled anti-extrusion rings, each of which has a deflec... | 09/14/1982 |
