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| Number | Title | Issue Date |
| 7484734 | Pressure resistant static and dynamic expeller shaft sealing A shaft sealing assembly for static and dynamic axial sealing of a centrally located rotating and movable shaft is provided. The assembly includes at least one first sealing member for sealing said shaft, at least one rotor member-attached to said shaft, and a stato... | 02/03/2009 |
| 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 |
| 7180227 | Piezoelectric o-ring transducer An o-ring sealing device, molded with an imbedded piezoelectric element, for use in vacuum systems. The imbedded element, of a circumferential length, has an oblong cross-sectional shape, the oblong shape having a pair of ends for externally connecting to a signal p... | 02/20/2007 |
| 7168536 | Brake master cylinder comprising plunger pistons and radial grooves inserted into the housing in order to receive sealing joints The present invention relates to a tandem master cylinder including two plunger pistons and its object is to design the cylinder as simple as possible and to render its assembly as economical as possible. This object is achieved by inserting circumferential annular ... | 01/30/2007 |
| 7097179 | Apparatus and method for manufacturing rubber-wrapped spiral wound gaskets A spiral wound gasket made of an elongate band with a portion of the elongate band jacketed by a resilient filler material, the jacketed elongate band wrapped in a plurality of overlapping turns to define a radially thick reinforcing member with the band in each tur... | 08/29/2006 |
| 7059829 | Compressor system with movable seal lands Aspects of the invention relate to a compressor system for a turbine engine that not only provides large compressor seal clearances as the engine passes through non-standard operating conditions, but also minimizes the clearances during normal engine operation, ther... | 06/13/2006 |
| 6962343 | Seal ring A seal ring is provided, which is capable of maintaining a stable sealing performance for a long period, in which a cut portion is provided at one position in a circumferential direction of a seal ring, a convex portion is provided at a first cut end portion, a rece... | 11/08/2005 |
| 6926285 | Jacketed spiral wound gasket A spiral wound gasket made of an elongate band jacketed by a sealing material, with the elongate band wrapped in overlapping turns to define a radially thick gasket with an inner diameter for being exposed to a material to be sealed and an outer diameter, in which t... | 08/09/2005 |
| 6834861 | Two piece oil control ring with nitrided surface layers A two piece oil control ring is provided which comprises a ring body (1) formed into a generally M- or I-shaped section with an annular groove (4) on an inside surface (3) of the ring body (1); and a coiled expander (2) attached in... | 12/28/2004 |
| 6739594 | Sealing arrangement between components of a rotating assembly as well as a method for producing a sealing joint A sealing arrangement between two radially adjoining components of an assembly that rotates during operation, in particular between the rotor and the rotating blade of a gas turbine component includes a sealing element in a depression of an inner one of the two comp... | 05/25/2004 |
| 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 |
| 6474653 | Seal arrangement A seal arrangement for a shaft having a broad rpm range, supported in a housing, in particular for axle drives. A radial shaft seal, arranged in the housing bore hole, seals the shaft bearing space from loss of lubricant. A baffle plate, joined to the sha... | 11/05/2002 |
| 6332617 | Leaktight seal of a circular vane stage A leaktight seal includes plaquettes that are housed between platforms of "hammer legged" vanes and a periphery of a rotor disc. The plaquettes lie above a throat that receives legs between a collar. The plaquettes are completed with heels that also lie b... | 12/25/2001 |
| 6315298 | Turbine disk and blade assembly seal A seal for the aft end of a turbine blade and disk assembly of a gas turbine engine to prevent leakage of the cooling air whose main body and cross section are U-shaped that freely fits into a groove formed in the disk lug adjacent the rim of the disk on ... | 11/13/2001 |
| 6224322 | Seal assembly for centrifugal pumps with barrier ring In a centrifugal pump, a barrier ring in the form of a dynamic seal member is interposed between relatively rotating, generally circular wall portions which undergo relative axial movement to vary the width of a gap between the wall portions, the seal mem... | 05/01/2001 |
| 6113106 | Gimballed mechanical face seal A mechanical face seal for use in a pump. The mechanical face seal including a seal head assembly, a seal seat assembly opposite and in contact with the seal head assembly. The seal head assembly including a gimbal ring engaging a first and second pair of... | 09/05/2000 |
| 6010409 | Venting constant velocity joint A vent regulator device adapted for use in a constant velocity joint including a housing having an inner surface defining an inner cavity. The inner surface includes an annular portion, and a domed portion which has a relatively small vent hole centrally ... | 01/04/2000 |
| 5427500 | Slurry pump seal system A centrifugal pump assembly comprises a pump housing defining a pump cavity, a drive shaft rotatably mounted to the housing, an impeller rotatably disposed in the housing and operatively coupled to the drive shaft, and a shaft seal disposed between the sh... | 06/27/1995 |
| 5378000 | Shaft seal assembly The improved shaft seal assembly is disclosed in having the sealing device lodged simultaneously in a female recess in the rotor and stator. The mating relationship of a solid deformable annular seal in opposed recesses in the stator and the rotor results... | 01/03/1995 |
| 5344162 | Sealing ring for gas turbine engines A sealing ring for controlling gas leakage through the annular space between two rotating concentric members; for example engine shafts. The sealing ring 20 has a generally trapezoidal cross section and an overlapping scarf joint. The sealing ring improve... | 09/06/1994 |
| 5297804 | Sealing system A sealing system for a circumferential gap between an inner component and a concentric outer component. The inner component moves in relation to the outer component essentially only linearly back and forth. The two components rotate together around a comm... | 03/29/1994 |
| 5221095 | Static and dynamic shaft seal assembly An isolator mechanism is provided for use with a machinery housing and a rotatable shaft protruding through the housing. The isolator mechanism comprises a stator ring affixed to the housing and a rotor ring which is attached to the shaft and which nests ... | 06/22/1993 |
| 5149207 | Seal for bearings of motor vehicle wheel hubs A seal device for wheel hub bearings consists of a centrifugation device (1) equipped with a seal (3) and a screen or shield (2) mounted onto the outer fixed race (11). The centrifugation device (1) is fixed to the inner rotating race (10) of the bearing.... | 09/22/1992 |
| 5078410 | Centrifugal seal A sealing member for sealing between a rotating surface (12) and a stationary cylindrical surface (13). The sealing member (8) is sealing engaged to the rotating surface (12) and is so constructed that) at a rotational speed greater than a predetermined s... | 01/07/1992 |
| 5069461 | Static and dynamic shaft seal assembly An isolator mechanism is provided for use with a machinery housing and a rotatable shaft protruding through the housing. The isolator mechanism comprises a stator ring affixed to the housing and a rotor ring which is attached to the shaft and which nests ... | 12/03/1991 |
| 4998600 | Oil lubrication system for the bearing of a shaft journal An oil lubrication system for a bearing positioned between two rotatable shafts, especially a pilot bearing (1) for a main shaft (3) in a transmission. The lube oil is fed predominantly radially inwardly on one side (11) of the pilot bearing (1) and is ra... | 03/12/1991 |
| 4995620 | Self-compensating seal for a rotating shaft A self-compensating seal for a rotating shaft includes a seal ring (13) having a plurality of trapezoidal and/or triangular shaped seal sections (15). A ring housing (22) is affixed to a shaft (12) and engages the inside trailing edge (20) of the seal rin... | 02/26/1991 |
| 4989883 | Static and dynamic shaft seal assembly An isolator mechanism is provided for use with a machinery housing and a rotatable shaft protruding through the housing. The isolator mechanism comprises a stator ring affixed to the housing and a rotor ring which is attached to the shaft and which nests ... | 02/05/1991 |
| 4974860 | Sealing device A sealing device is adapted to be disposed between a stationary part and a rotary shaft in the stationary part so as provide a seal in the gap between the stationary part and the rotary shaft. The sealing device has a slinger secured to one of the station... | 12/04/1990 |
| 4971336 | Enhanced performance brush seals One problem associated with presently known brush seals (10) used in gas turbine engines is their limited ability to cope with excessive radial inteference due for example to excessive thermal or centrifugal growth of the component against which they seal... | 11/20/1990 |
| 4817966 | Rotary shaft bearing isolator seal A bearing isolator seal having a shaft seal assembly that includes a stator housing having an inner radially extending face with an annular flange of substantially frusto-conical shape that extends from a larger diameter end that is fixed to the inner rad... | 04/04/1989 |
| 4790543 | Sealing device governed by centrifugal force A sealing device for a slot between two elements, which are rotatable relative to each other, e.g. an outer and an inner race ring in a rolling bearing, incorporates a flexible sealing portion having a lip, which contacts a sealing surface surrounding the... | 12/13/1988 |
| 4572516 | Low friction dynamic seal assembly with centrifugal deflection A low friction dynamic seal assembly in which a seal body is selectively bonded to certain portions of a seal case fixable to a rotatable member. The selected bonding creates a hinge with the seal case of controllable resistance to the initial deflection ... | 02/25/1986 |
| 4484752 | Rotating-lip bidirectional hydrodynamic oil seal A rotating-disc bidirectional hydrodynamic oil seal, for use between a shaft and a bore, one of which is stationary while the other rotates. A rigid member has a peripheral portion engaging the stationary member and has a frustoconical portion with a disc... | 11/27/1984 |
| 4465285 | Variable contact centrifugally operated seal mechanism A variable contact seal mechanism which includes a rotatable shaft, a seal body having a wall member, and a seal member having a cylindrical portion secured onto the rotatable shaft and a tongue portion resiliently slidably contacting the seal wall such t... | 08/14/1984 |
| 4462600 | Rotary fluid seals A rotary fluid seal having a flexible sealing ring which floats between relatively rotatable counterface members and has contact faces which bear on the counterfaces under the influence of centrifugal force, such as forms the subject of U.S. Pat. No. 4,34... | 07/31/1984 |
| 4457519 | Sealing ring An annular seal of resilient material for creating a seal between a rotary shaft and a stationary member. The seal has an elongated mounting portion for embracing the surface of the shaft, an angularly extending intermediate portion which extends away fro... | 07/03/1984 |
| 4426089 | Dust-proof device for mechanical seal A dust-proof device for preventing dust from entering into sliding surfaces from the inside thereof in a mechanical seal for avoiding the leakage of fluid from the outside into the inside of the sliding surfaces, which mechanical seal comprises a seating ... | 01/17/1984 |
| 4406460 | Anti-weepage valve for rotating seals For a rotating carbon seal that requires lubrication a rotating self-actuating weepage valve responding to speed and/or pressure for closure of the valve at a given operating condition.... | 09/27/1983 |
| 4348031 | Rotary fluid seals with floating sealing rings A rotary fluid seal, especially an oil seal for a rotary shaft, comprises a sealing ring between axially-opposed divergent frusto-conical counterfaces of relatively rotatable members, preferably casing rings in a self-contained seal unit, the sealing ring... | 09/07/1982 |
