Class 277/581 - And biased

Subclass of Class 277 - Seal for a joint or juncture
Definition: Radially translatable in a groove and a resilient member
No. of patents: 31
Last issue date: 08/19/2008

Number	Title	Issue Date
7413194	Pressure balanced annular seal This invention provides a segmented annular seal (10) the sealing leakage gaps between relatively movable components 14,16 between high and low pressure regions in a gas turbine engine, for example for sealing an engine shaft 16. The seal compri...	08/19/2008
7334799	Sealing device for a turbocharger A sealing device has a seal ring and a cylindrical bellows portion connected to the seal ring. The cylindrical bellows portion has a corrugated outer surface. A turbocharger utilizing the sealing device has a turbine wheel connected to a shaft and a compressor wheel...	02/26/2008
7320468	Sealing arrangement A sealing arrangement for sealing a leakage gap between relatively moveable parts in a flow path between a region of high fluid pressure and a region of low fluid pressure comprises a sealing member having an upstream surface, a downstream surface, a radially outer ...	01/22/2008
7201379	Seal assembly, cartridge, and method A seal assembly and cartridge for sealing a space between a rotating member and a stationary member in which a sleeve extends around the rotating member and with the inner surface of the sleeve being spaced from the outer surface of the rotating member to form a gap...	04/10/2007
7147230	Sealing device and sleeve and holding element for such The sealing device is for drum filters or filter presses to form a seal between the rotary drum end faces and the end faces of the trough in which the rotary drums are situated. A sealing element (3) is disposed in a groove (1) on the rotary drum end f...	12/12/2006
7090459	Hybrid seal and system and method incorporating the same A seal having a first seal mechanism adapted for insertion between a first structure and a second structure, wherein the first structure is in communication with a first medium and the second structure is in communication with a second medium. The seal also includes...	08/15/2006
7083170	Rod 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
7066470	Active seal assembly A seal assembly includes an annular hanger having a supporting ledge. An arcuate seal segment includes an outer rail mounted on the ledge and supporting an inner seal. An arcuate carrier is mounted between the hanger and the rail, and includes a piston mounted in a ...	06/27/2006
6871562	Power steering system for motor vehicles For a power steering system which has, as a recirculating ball steering, a worm shaft and, enclosing this, a working plunger which is to be actuated by a bead chain axially shiftably with respect to the worm shaft, an axial seal is provided for the annular gap betwe...	03/29/2005
6805360	Regulator with segmented body The regulator connects to a high pressure fluid supply and regulates the pressure to a downstream apparatus. If an over-pressure occurs, it is vented to atmosphere. A segmented body reduces production cost. An elongate control stem engages a supply seal assembly and...	10/19/2004
6692008	Sealing arrangement A sealing arrangement for closing off an end of a chamber formed between a plurality of rollers of a pressing apparatus, comprises a seal member made of a hard seal material such as carbon fiber material. The sealing arrangement is preferably a self-loade...	02/17/2004
6575472	System for sealing relatively movable elements The present invention is directed to a system for providing a fluid seal between relatively movable elements, including a hub or a drum and a piston. A groove for retaining a seal is defined in the periphery of one of the rotatable elements, and a spacer ...	06/10/2003
6505837	Compliant foil seal A compliant foil seal comprising at least one smooth resilient foil for facing a rotor and at least one bump foil for providing film riding stiffness and controlled deformation of the smooth resilient foil for providing an effective seal which is capable ...	01/14/2003
6378873	Low flow fluid film seal for hydrogen cooled generators In a hydrogen cooled generator, a seal casing has a chamber opening radially inwardly for receiving a pair of seal rings forming a fluid film along the interface between the rings and the rotor. A spring biases the seal rings against axial spaced flanges ...	04/30/2002
6367810	Self-centering shaft seal system A seal assembly is undersized in relation to the bore in which it is installed to permit radial floating of the seal assembly within the bore to enable precise coaxial alignment between the seal assembly and shaft, despite misalignment between the axis of...	04/09/2002
6340160	System for sealing relatively movable elements The present invention is directed to a system for providing a fluid seal between relatively movable elements, including a hub or a drum and a piston. A groove for retaining a seal is defined in the periphery of one of the rotatable elements, and a spacer ...	01/22/2002
6315301	Seal apparatus for rotary machines Rotating machine seal device is improved so that seal plate is fitted to rotating portion firmly, thereby self-induced vibration of the seal plate is reduced and occurrence of abrasion or thinning of the seal plate due to the self-induced vibration and se...	11/13/2001
6250813	Bearing assembly with housing cap and seal A bearing having a spherically convex radially outer surface is pivotably mounted in a spherically concave bore of a bearing housing. An annular housing cap is mounted against an axial end of the bearing housing, the housing cap having a radially inwardly...	06/26/2001
6145843	Hydrodynamic lift seal for use with compressible fluids This invention discloses a completely different hydrodynamic gas seal configuration from both the Rayleigh bearing and other prior art. Instead of the shallow, wide, and short single pocket geometry for the Rayleigh bearing, and instead of the multiple de...	11/14/2000
6082740	Bolted-ring seal casing for hydrogen cooled generators A seal ring assembly for a generator includes an upper seal casing having a first radially inwardly directed channel for supporting at least one seal segment therein, the upper seal casing having a removable cap forming one side of the inwardly directed c...	07/04/2000
6004249	Slide disc seal arrangement for a roll of a paper making or finishing machine or the like A slide disc seal for use in a roll of a paper or board making machine or finishing apparatus, which roll comprises a stationary axle (1) and a rotatable shell (2) with an end element (8) at each end and bearing elements (3) at each end of the roll. The s...	12/21/1999
5666012	Rotating shaft seal A means of sealing a rotating shaft against high fluid pressure with low friction torques, low leakage and low wear. This accomplished by use of sealing assembly comprising a sliding and a floating seal assembly separated by a lubricant filled chamber. Th...	09/09/1997
5660398	Hydraulic sealing device In a sealing device, a crank-shaped oil channel is defined in an abutment of a sealing ring for sealing between a shaft member and a housing which surrounds the shaft member and is rotatable relative the shaft member. The crank-shaped oil channel is compr...	08/26/1997
5332234	Sealing arrangement A sealing arrangement for sealing off a rod capable of lateral movement from a housing which surrounds the rod with radial clearance is disclosed. The sealing arrangement comprises a sealing ring of a polymer material, which is provided with a radially mo...	07/26/1994
5054374	Rotary actuator A rotary actuator defining a first arcuate chamber and a second chamber, the housing having an inwardly projecting, peripherally extending rib which defines an aperture in open communication with the arcuate chamber, a peripherally extending groove being ...	10/08/1991
4889349	Sealing arrangement A seal comprised of a sealing ring (1) and a clamping ring (2) presses against the end face (3 ) of a machine part (3). The sealing ring surrounds a tubular part (12), close to the low-pressure end of which are formed a narrow sealing ridge (131) and a su...	12/26/1989
4744721	Turbopump sealing device A turbopump sealing device is mounted in a case concentric with the rotary shaft between the turbine and the pump, the case defining a cavity for pressurizing gas, defined on the turbine side by a bearing ring which is integral therewith, in contact with ...	05/17/1988
4576387	Rotary joint device with floating seal ring for a cryogenic fluid A device forming a rotary joint for a cryogenic fluid, comprising a stationary part and a rotary part mounted in rotatable relationship with the stationary part, the sealing means at the connection between the rotary part and the stationary part comprisin...	03/18/1986
4497494	Pressure activated seal ring A pressure activated seal ring has an inner cylindrical surface with a plurality of undulations formed thereon and a substantially smooth cylindrical outer surface. The undulated areas permit pressure on the inner surface so that the outer cylindrical sur...	02/05/1985
4448425	Shaft seal assembly with inflatable annular member An annular seal assembly disposed between a shaft surface and a surrounding ousing, for example, a seal assembly for an aft-stern tube seal of a sea-going vessel, comprises a nonrotating annular seal element having a circumferentially segmented constructio...	05/15/1984
4403779	Seals for liquid-tight closure between rotary component and partition A seal for producing a liquid-tight closure between a rotary component and a partition separating two chambers, where the rotary component penetrates the partition, said seal includes a retaining means which may be secured to the partition so that it surr...	09/13/1983

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Class 277/581 - And biased