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| Number | Title | Issue Date |
| 8052152 | Dynamic shaft seal and method of installation thereof A shaft seal for forming a dynamic seal along an axially extending annular running surface and method of installation thereof is provided. The shaft seal has a mounting portion configured to be connected to a stationary housing and a seal lip having an annular seali... | 11/08/2011 |
| 7854433 | Dynamic seal A dynamic shaft seal assembly is provided including a dynamic seal for engaging a rotary shaft. The dynamic seal includes a base portion that is mounted within a casing and has an axially extending barrel portion extending from a radially inner end of the base porti... | 12/21/2010 |
| 7201241 | Self relieving seal Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal... | 04/10/2007 |
| 7134671 | Lip seal having increased contact force at interface and apparatus incorporating the same A seal having a body portion, at least one lip portion extending from the body portion, and a protrusion formed on the at least one lip portion. The lip portion and protrusion formed thereon may each include an arcuate segment wherein the arcuate segment of the prot... | 11/14/2006 |
| 7097004 | Pressure bleeding boot-type seal A boot-type seal having a seal and a valve. The seal has a first seal member, which is configured to sealingly engage a first surface, and a second seal member, which is configured to sealingly engage a second surface. The valve is coupled to the seal and is operabl... | 08/29/2006 |
| 7017913 | Axial shaft seal An axial shaft seal disposed between a housing wall and a rotating shaft includes an outer ring insertable into the housing wall in a stationary and sealing manner and an inner ring connectable to the shaft in a non-twisting and sealing manner. The outer ring includ... | 03/28/2006 |
| 6976548 | Self relieving seal Self relieving seals of this invention comprise an elastomeric seal body having a first sealing surface and a second sealing surface for contact with respective drill bit sealing surfaces. The seal includes a pair of external surfaces that each extend along the seal... | 12/20/2005 |
| 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 |
| 6921082 | Lip sealing ring A lip sealing ring for a relatively movable machine element (1), including a flexible sealing lip (2) made of polymeric material which adjacently encloses the machine element (1) in the region of a sealing gap (3) under elastic prestressi... | 07/26/2005 |
| 6866271 | Marine shaft seal with lip seal, bearing and gasket A sealing device for use with a drive shaft of a water vessel. The sealing device comprises a housing for a seal and bearing, a compression ring, a lip seal flange attachment and a diaphragm for tracking the movement of the shaft. The diaphragm is made of a resilien... | 03/15/2005 |
| 6676130 | Shaft sealing ring Provision is made in a shaft sealing ring, comprising a rotary support body, at least one sealing lip mounted on the support body and extending at least partly in radial direction, and a sealing surface offered by the sealing lip and contacting a stationa... | 01/13/2004 |
| 6659468 | Rotary seal A seal includes an annular seal body and an annular lip attached to the seal body and extending radially outwards from the seal body. The annular lip has a stem and a tip and is attached to the seal body in a manner allowing deflection of the lip relative... | 12/09/2003 |
| 6601855 | Seal for a universal joint A universal joint seal for retaining lubricant therein. The seal cooperates to form a static seal with the trunnion and a static seal with the bearing cup and permits relative angular movement between the trunnion and bearing cup through a flexible web po... | 08/05/2003 |
| 6520507 | Sealing sleeve, especially for small-dimension installation spaces A sealing sleeve made of a polymer material especially for small-dimension installation spaces, the sealing sleeve having a retaining segment and a sealing segment, the retaining segment being connected to a supporting body and the sealing segment on the ... | 02/18/2003 |
| 6513812 | Combined lip seal and turbine seal A novel sealing device is disclosed that provides an enhanced seal at the interface between a rotary shaft and a stationary housing for automotive applications such as transmissions and axle assemblies. The sealing device preferably includes a first seal ... | 02/04/2003 |
| 6513810 | Sealing ring A sealing ring, including a support ring made of an impact-resistant material, and a lip ring made of PTFE, where the lip ring has a holding segment and a sealing segment, and where the holding segment is connected with the support ring by an intermediate... | 02/04/2003 |
| 6406034 | Shaft joint seal having wiper A joint for a shaft assembly includes a housing fitted with a boot seal that encircles and seals about a stub end of a shaft extending into the housing. The boot seal has a collar-like neck portion whose inner surface is formed with an annular wiper rib. ... | 06/18/2002 |
| 6302403 | Sealing assembly for two mechanical members connected for relative rotation, in particular for two rings of a rolling bearing A sealing assembly for two mechanical members connected for relative rotation; a first mechanical member is fitted integrally with a substantially rigid shield, from which projects radially an annular sealing member having, on a respective first annular f... | 10/16/2001 |
| 6298955 | Shaft seal for eccentric air brake lever An improved seal for use between an eccentric shaft and a brake caliper in an air disc brake system incorporates a flexible portion between the fixed portion which is fixed to the caliper and the floating portion which is received on the shaft. The flexib... | 10/09/2001 |
| 5988591 | Spool A packing mounting groove formed in a spool has a wider portion of a large groove width and a narrower portion of a small groove width, and a packing that is mounted in the packing mounting groove has a first portion that fits in the wider portion and a s... | 11/23/1999 |
| 5967527 | Sealing assembly for a moving mechanical member, in particular a rotary shaft of a hydraulic pump A sealing assembly (1) for a rotary shaft (2), having a metal structure (4) defined by a sleeve portion (6) and by a radially inner flange (7), and a sealing ring (5) cooperating in sliding manner with the shaft (2); the sealing ring (5) in turn has a con... | 10/19/1999 |
| 5909880 | Polymer bearing seal and sealed bearing A polymer ring has a circumferential mounting flange and an annular end wall extending radially inwardly and axially inwardly therefrom, providing a conically convex side and a conically concave side. An annular seal lip projects from a radially inner por... | 06/08/1999 |
| 5609343 | Sealing rings for spool valves Provision of constrictions imparts to a sealing ring for spool valves both needing flexibility and sufficient strength to remain undetached from the spool in the spool valves. The constrictions to impart flexibility are provided on the outside of the cent... | 03/11/1997 |
| 5556112 | Shaft sealing ring with flexible hinged sealing lip A shaft sealing ring comprising an annular holder (3) and an annular sealing section consisting of a sealing lip (4) extending to the surface (1) of the shaft against the pressure difference to be sealed and a radially extending connecting section (15) co... | 09/17/1996 |
| 5411273 | Lip seal to seal a shaft, in particular a ship's propeller shaft This invention relates to lip seals for shafts, whose lip bodies consist of rubber elastic material, and is mounted on the reverse side on an essentially radial surface of a back-up ring which is integral with the housing. When the pressure of the medium ... | 05/02/1995 |
| 5244215 | Rotary shaft seal with retractable excluder lip A seal assembly is provided for retaining fluids within a sealed region defined in part by the seal assembly secured within an annular casing member and in part by a shaft extending axially through the seal assembly within the casing. The fluid seal assem... | 09/14/1993 |
| 5085444 | Dust seal for sliding type bush A dust seal for a sliding type bush is interposed between a stationary section and a movable section. The dust seal has a fitting portion fitted to the stationary section, a seal lip portion in sliding contact with the outer circumferential surface of the... | 02/04/1992 |
| 4969653 | Radial lip oil seal A shaft seal includes a rigid case and an elastomeric seal body affixed thereto. The seal body member includes a primary sealing lip and a secondary sealing lip axially spaced from one another by an intermediate flex section. The sealing surfaces of both ... | 11/13/1990 |
| 4957301 | Non-crushable side seal members for a roll-up door A seal member (11) is adapted to seal the gap or space between a door panel (12) and frame (13) of a roll-up door assembly (10). The improved seal member includes a first portion (34) and a second portion (35). The first portion is mounted on the frame, a... | 09/18/1990 |
| 4844484 | Floating lip seal with reinforced flexible portion An annular shaft seal including a continuous lip sealing element for sealing against oil flow between a bore and a shaft extending through the bore includes a convoluted elastomeric flexible section which connects the sealing element with a rigid case sup... | 07/04/1989 |
| 4805919 | Bearing seal A novel seal for transversely sealing a bearing includes a seal body formed from a stiff, homogeneous material. The seal body is adapted to be received at outer race groove and inner race land. The seal is characterized by a set of annular hinges formed i... | 02/21/1989 |
| 4750748 | Shaft seal with flexible midportion and garter spring Shaft seal consisting of an annular body of elastic material, comprising a fastening flange (1;12), a substantially axially extending flexible hinge portion (6;13) and a sealing lip (7;14). The fastening flange, hinge portion and sealing ring (5) form a s... | 06/14/1988 |
| 4732398 | Bellows-type bearing seal and method of use A rubber dirt-excluding and grease-retaining seal for use in machine assemblies such as furrow forming disc assemblies in grain drills, marker disc assemblies and the like comprises a generally cylindrical, accordian-like body formed of interconnected poc... | 03/22/1988 |
| 4718680 | Bellows sealing sheath for articulated joints A bellows sealing sheath for an articulated joint including a bellows which connects together two sleeves intended to be mounted respectively on the driving element and on the driven element and which includes an inner ring in the extension of the first f... | 01/12/1988 |
| 4630834 | Sealing assembly for universal joint A sealing assembly for a universal joint formed as an annular disc made of resilient material extending in sealing engagement between an inner joint member or a shaft part thereof and an outer joint member with the annular disc being in sealed engagement ... | 12/23/1986 |
| 4611931 | Sealed roller bearing Sealed roller bearing with a plastic jacket, in which this jacket, continuing in the radial direction on at least one side of the roller bearing, is designed to form a seal by way of at least one ring lip with a shaft or the like, characterized in that th... | 09/16/1986 |
| 4588195 | Floating lip seal assembly with convoluted flexible section An annular shaft seal of the type including a continuous lip seal element for sealing against oil flow through and between a bore and a shaft extending therethrough includes a convoluted elastomeric flexible section which connects the sealing element with... | 05/13/1986 |
| 4553763 | Seal ring having an axis parallel intermediate ring A seal ring has a lip ring which is at least radially resilient and has a sealing lip for sealing about a reprocating or rotating machine part and a support surface axially spaced from the sealing lip. A reinforcing ring is radially spaced from the lip ri... | 11/19/1985 |
| 4553760 | Flexible seal for a spherical joint A flexible seal assembly has an elastomeric body with a convoluted intermediate portion for accommodating pivotal movement about the center of a spherical joint and an integral radial seal lip for accommodating rotational movement about a central axis of ... | 11/19/1985 |
| 4531748 | Fluid seal with unitary wear sleeve element An improved seal assembly which provides a seal having a unitizing element adapted to fit over one portion of a sealed mechanism and a primary seal assembly adapted to be received within or with respect to another sealed part which moves relative to the f... | 07/30/1985 |
