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| Number | Title | Issue Date |
| 8231129 | Sealing device To avoid interference of a side lip when plural sealing devices are piled up, a sealing device installed on one member of two members rotating relatively is constructed by combining a mounting ring fitted on the one member and a rubber-like elastic body attached on ... | 07/31/2012 |
| 8104770 | Semiconductor process chamber A process chamber 10 comprising a container (12), a lid (14), and a sealed interface (16) therebetween. The container's interface surface (30) and/or the lid's interface surface (32) includes at least one groove (36) ... | 01/31/2012 |
| 7624989 | Seal with non-contact adjacent deflector rings The invention relates to a seal with non-contact adjacent deflector rings, arranged concentrically to each other, about a common rotation axis, whereby, on a first deflector ring of the deflector rings, at least two axially-adjacent radial lips are embodied an said ... | 12/01/2009 |
| 7354191 | Mortar mixer and trunnion assembly A mortar mixer includes a substantially cylindrical drum having end plates supporting trunnion assemblies, with housings, having an interior space defined by an interior surface around the paddle shaft. A first seal is located adjacent the end plate and is positione... | 04/08/2008 |
| 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 |
| 7290769 | Sealing device with a brush gasket and flexible washer for a high-pressure turbine of a turbomachine A sealing device for sealing between two static portions of a turbomachine includes a brush gasket formed by a plurality of resilient bristles which are, at least in part, held in a housing. Each bristle has a main portion and a secondary portion interconnected by a... | 11/06/2007 |
| 7249769 | Seal apparatus A seal (40) provides sealing between two pressure zones (60, 62) and a rotating and non-rotating member (42, 52) by providing a first sealing member (46) between two seal lands (48, 50). A second seal (64) is mounted between... | 07/31/2007 |
| 7175001 | Apparatus for driving raising and lowering of lift for tower type storehouse There is provided an apparatus for driving the raising and lowering of a lift for a tower type storehouse so as to supply a force for vertically operating the lift carrying goods to storerooms on every floor of the storehouse, and more particularly to an apparatus f... | 02/13/2007 |
| 7108058 | Packing assembly for rotary drilling swivels and pumps having rotating shafts A packing assembly for use with a rotary drilling swivel having a cylindrical wash pipe comprising a housing assembly including a packing gland forming a sealing assembly chamber around the wash pipe, the packing gland including an injection port in open communicati... | 09/19/2006 |
| 7021633 | Low 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 |
| 6923254 | Washpipe apparatus Methods and apparatus for providing enhanced seal life of a swivel seal assembly by decreasing the effective differential pressure across a given rotating seal. The differential pressure is decreased by providing a pressurized fluid on the low-pressure side of the s... | 08/02/2005 |
| 6910692 | Composite 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 |
| 6905123 | Seals A gas seal for providing a seal between a pair of relatively rotatable components is provided with a stand-still seal which will seal between the components when the components are stationary, the stand-still seal having a sealing element mounted in sealing relation... | 06/14/2005 |
| 6692006 | High-pressure film-riding seals for rotating shafts A circumferential film-riding seal operative in a gaseous or liquid environment about a rotating shaft is provided so that it is able to function with extended lifetime, low leakage, and a high-pressure difference thereacross. These characteristics are ac... | 02/17/2004 |
| 6663110 | Hydrophobic shaft seal A seal assembly seal assembly includes an outer member, an inner member, and a resilient member therebetwen. The resilient member is located between an inner diameter of the outer member and an outer diameter of the inner member. The resilient member incl... | 12/16/2003 |
| 6585270 | Hydrogen seal ring having seal at ring intersegment A seal is provided at the intersegments of hydrogen seal rings for preventing oil leakage through this potential gap between the seal ring segments. By minimizing leakage through the gaps between the open rings, hydrogen consumption in hydrogen-cooled gen... | 07/01/2003 |
| 6543786 | Installation structure of lip type seal A lip type seal (3A) has an annular casing (31), a plurality of seal lips (32, 34) and a rear surface support ring (35) arranged at the rear side. The casing (31) is installed to an inner circumferential surface of a seal installation part (1a) of a shaft... | 04/08/2003 |
| 6431550 | Hydrogen seal ring having seal at ring intersegment A seal is provided at the intersegments of hydrogen seal rings for preventing oil leakage through this potential gap between the seal ring segments. By minimizing leakage through the gaps between the open rings, hydrogen consumption in hydrogen-cooled gen... | 08/13/2002 |
| 6241252 | Labyrinth seal and method of making same A seal assembly is adapted for mounting between a rotatable shaft and an outer stationary housing, the seal assembly being made up of a metal sleeve in surrounding relation to the shaft, a non-metallic resilient seat in surrounding relation to the sleeve,... | 06/05/2001 |
| 6105596 | Sealing system A sealing assembly with a first molded graphite ring of generally triangular cross section, one side of which is in use perpendicular to the longitudinal axis of a rotatable and/or slidable shaft, the surface of which is to be sealed in an axial direction... | 08/22/2000 |
| 5895051 | Noise abating beads on a rack seal A rack seal for use with a rack bushing and seal retainer wherein the rack bushing is made of a thermoplastic material and includes a face with a plurality of cooling cavities. The rack seal includes a body member, an annular sealing face, and a retainer ... | 04/20/1999 |
| 5826884 | Track joint sealing assembly for sealing a track joint having ceramic and elastomeric seal portions A track seal assembly adapted to seal a track joint includes a track link and a first ceramic seal member. The track seal further includes a first elastomeric member positioned between the track link and the first ceramic seal member. The track seal furth... | 10/27/1998 |
| 5816784 | Electromagnetic actuator mechanism for centrifugal pump An electromagnetic actuating mechanism is provided for a centrifugal pump in which a solenoid ring includes a radially inwardly projecting annular seal movable between open and closed positions with respect to a rotary seal which is mounted for rotation w... | 10/06/1998 |
| 5678828 | Sealing device A sealing device comprises an annular first seal member composed of a rubber-like elastic member and a metal ring member for reinforcement and an annular second seal member composed of a sliding member formed of a resin material and a rubber-like elastic ... | 10/21/1997 |
| 5398944 | Sealing system for reciprocating rod The stuffing box of the present invention includes a seal housing surrounding the polished rod. A V-ring set is mounted in sealing contact with the polished rod, and concentrically surrounds the polished rod within the seal housing. A compression ring is ... | 03/21/1995 |
| 5387040 | Sealing system Sealing system for a housing containing gears operated in a lubricated environment, the housing having an opening through which a shaft supported in a bearing assembly extends for mating with at least one of the gears in the housing. Sealing system includ... | 02/07/1995 |
| 5314172 | High pressure die cylinder and manifold system A high pressure die cylinder and manifold system including a plurality of die cylinders mounted on a manifold. Each die cylinder includes a cylinder body in which a piston rod and a piston is positioned for limited relative movement with respect to the cy... | 05/24/1994 |
| 5303934 | Fluidic actuator scraper seal Dual "U" cup seals are utilized in conjunction with conventional seals as fluidic actuator shaft scrapers for actuators operating in contaminated environments. The seals are installed in serial spaced relation on the low pressure side of the conventional ... | 04/19/1994 |
| 5207794 | Seal assembly for a shaft comprising a stuffing box A seal assembly for a shaft comprising a stuffing box having an inner circular cylindrical wall surface, for attachment on or in a wall having an opening for passage of a shaft therethrough. The seal assembly having at least one first annular sealing lip ... | 05/04/1993 |
| 5110143 | Seal cartridge for use in idler rollers A bearing seal having multiple elements including a pair of contact seals, one of which is a fiber seal and a second of which is an elastomeric seal, is provided for use with a bushing having an inclined step which, in conjunction with a seal locator havi... | 05/05/1992 |
| 5062648 | Seal for rotating torque tube with seal valve A device for establishing a fluid-tight seal around a rotatable drive shaft has a housing which is formed with a straight bore through which the drive shaft is positioned. The bore has a narrow portion, a wide portion and a tapered portion between the nar... | 11/05/1991 |
| 4913450 | Seal The invention refers to a seal for bearing spaces, wall channels for shafts and the like, where the seal is fitted to the shaft. The seal is characterized in that it incorporates a sheet metal strutting projecting radially outwards, and on the side facing... | 04/03/1990 |
| 4821627 | Piston and cylinder assembly A piston and cylinder assembly for the annular type in which the cylinder defines an annular housing chamber slidably receiving an annular piston. The inboard end of the annular piston is enlarged to define an enlarged annular inboard end edge and an annu... | 04/18/1989 |
| 4807890 | Sealing combination An improvement in a sealing combination between a head of a hydraulic cylinder and a plastic covered cable traversing therethrough, including the plastic covered cable connected with a piston interiorly of the cylinder so as to be moved longitudinally res... | 02/28/1989 |
| 4781483 | Device for exposing a mass stored in a container The invention relates to a device (1) for exposing a mass (3) stored in a container (2). Disposed in container (2) is a conventional follower piston (5), the dispensing opening (4) of container (2) being closed by a removable closure cap (11). For generat... | 11/01/1988 |
| 4745847 | Helical splined rotary actuator Helical splined rotary actuator includes a pair of cylinder housings having inboard ends rotatably mounted in coaxial alignment on opposite ends of a center sleeve member. Contained within the housings are pistons having relatively large diameter helical ... | 05/24/1988 |
| 4739695 | Fluid-pressure-operable actuator systems A fluid-pressure-operable actuator system, for operating an aerodynamic control surface, including an actuator comprising a casing, piston and output member. Annular sealing means carried by the piston sealingly engages with the casing while annular seali... | 04/26/1988 |
| 4726595 | Shaft sealing device with spherical portion and wiper seals A shaft sealing device has a body containing a spherical portion of a sealing element which also has a tubular portion extending outside the body. The shaft extends through both portions of the sealing element. A pair of annular wiper seals is located wit... | 02/23/1988 |
| 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 |
| 4694910 | Packing tube assembly for pumping wells A packing tube assembly which can easily be substituted for the conventional stuffing box on typical pumping wells to substantially increase the operational life of the packing involved. The assembly includes a mounting bushing for the packing tube having... | 09/22/1987 |
