Class 277/580 - Radially translatable in groove

Subclass of Class 277 - Seal for a joint or juncture
Definition: Floating ring or bushing wherein the ring or bushing moves
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
7360436	Reusable preload indicating washer assembly A reusable washer assembly apparatus includes a generally ring-shaped flexible inner member, a generally ring-shaped outer member, a distal washer member, and a proximate washer member. The outer member is disposed around the inner member and is adapted for at least...	04/22/2008
7284458	Adjusting element device A device to be used with an adjusting element comprising a rod piston (3) displaceable with the aid of a motor (4) in a piston tube (2). The motor (4) is rotatably arranged at the adjusting element (1) through a worm gear (6...	10/23/2007
7090219	Sealing device Sealing device for sealing at least one zone of underpressure or overpressure adjoining a moving surface that includes at least one sealing element, positionable opposite the moving surface to form a front and a rear, with respect to a surface running direction. The...	08/15/2006
7052014	Snap together bearing isolator The assembly includes rotor and stator elements each having an inclined plane or surface juxtaposed to each other. This is a metallic assembly and the rotor and stator also have juxtaposed cavities. The stator cavity being of sufficient size to accommodate a sealing...	05/30/2006
7037126	Rotary joint for fluid electricity The present invention is directed to a rotary joint that includes a power slip ring and an electric signal slip ring, both for passing electricity between a stator and a rotor The system includes a plurality of slip rings (21,31) and a plurality of circumfere...	05/02/2006
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
7004509	Journal bearing mounted hub seal rotary joint A rotary joint comprising a stationary head including a fluid chamber therein, the chamber opening at a bottom surface of the heaf, a rotatable nipple having an outer surface and an internal axial passageway in fluid communication with the fluid chamber; and a seal ...	02/28/2006
6522708	Seal arrangement for in-core instrument housing A seal arrangement for providing a seal between a nuclear reactor in-core instrument housing and an instrument contained within the housing includes a lower seal assembly surrounding an outer portion of the in-core instrument housing, an upper seal assemb...	02/18/2003
6505834	Pressure actuated brush seal An embodiment providing a seal assembly for turbomachinery for controlling flow of a fluid medium in a fluid path comprises a casing having an internal pressure load path and a seal carrier chamber. A movable seal carrier is disposed within the seal carri...	01/14/2003
6504888	Apparatus and methods of flow measurement for a boiling water reactor internal pump A reactor pressure vessel (RPV) for a nuclear reactor that permits measurement of the flow through each reactor internal pump (RIP) is described. The reactor pressure vessel also includes at least one reactor internal pump that includes an impeller and a ...	01/07/2003
6431553	Radially pressure balanced floating seal system A radially pressure balanced floating seal system is used to seal a rotating shaft, such as a drive shaft in a torpedo, or other type of vehicle or machinery. The radially pressure balanced floating seal includes an outer seal housing and an inner seal ho...	08/13/2002
6422570	Lip type seal A lip type seal is provided with an outer ring part (31) which is tightly fitted to a seal installation part (12) of a housing (1); a seal main body (32) which is fixed to the outer ring part (31) and whose inner circumferential part extending in a bent s...	07/23/2002
6302399	Sealing device and process for sealing a moving surface with the sealing device Sealing device for laterally sealing of at least one overpressure zone and vacuum zone in a paper machine and process for sealing a moving surface with the sealing device. The sealing device includes a moving surface adjacent to the at least one overpress...	10/16/2001
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
6036191	Rotary valve seal assembly A seal assembly for providing a seal between a cylindrical member and a bore formed in a housing, the housing and cylindrical member being rotatable relative to one another, the seal assembly being located within an annular groove formed in the cylindrica...	03/14/2000
5957462	Seal structure between a rotatable member and a stationary member A seal structure includes a stationary member, a rotatable member disposed within the stationary member to divide an interior of the stationary member into two chambers, a seal member mildly pressed to the stationary member and the rotatable member, and a...	09/28/1999
5941534	Hydraulic seal system A hydraulic seal system includes a seal ring groove and a seal ring mounted in the seal ring groove. The seal ring and seal ring groove are rotatable relative to each other, and have sealing sides, respectively, which are put into pressure contact with ea...	08/24/1999
5921166	Cylinder apparatus A cylinder apparatus including a piston slidably fitted in a cylinder having a hydraulic fluid sealed therein. A piston rod is connected at one end thereof to the piston. The other end portion of the piston rod extends as far as the outside of the cylinde...	07/13/1999
5772259	Slide assembly with telescoping fluid conduits with improved sealing arrangement An actuating slide assembly for an automatic assembly machine, wherein the slide assembly includes telescoping fluid conducting conduits interconnected between the slide body and associated end block mounted for relative reciprocal movement relative to th...	06/30/1998
5765838	Sealing gasket made of expanded graphite, with opened thin-leaf surface structure An expanded graphite sealing material is provided in which the adaptability of the principal face of an expanded graphite base member is improved, the bonding strength to a coating layer and the like can be increased, and the sealing properties can be enh...	06/16/1998
5123297	Lubricant retaining device A resilient sealing device is provided for accommodating tolerance variations between a lubricant holding case and a hub member. The device has a sealing face including deformable lips which are urged toward the hub by a resilient column and deformable le...	06/23/1992
5039115	Seal for a rotating shaft A seal for a rotating shaft is disclosed which seals the shaft as it passes through a stationary partition wall. The seal has a segmented graphite sealing ring extending around the shaft located in an annular recess of a casing attached to the partition w...	08/13/1991
4947811	Floating valve stem seal A valve stem seal assembly includes a rigid cylindrical shell and an annular resilient seal body supported within an endwall of the shell. The resilient seal body includes an exterior circumferential groove, and the endwall contains an aperture adapted fo...	08/14/1990
4572518	Leak free floating packing shaft seal A leak free floating packing shaft seal is provided for a rotatable shaft d a supporting annular structure wherein the supporting annular structure has a high pressure upstream side and a low pressure downstream side. The floating seal includes an annular...	02/25/1986
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
4494760	Pressure balanced floating seal A shaft seal that is slidably mounted in a housing with essentially equal balanced forces acting on each radial side. Fluid from the high pressure side of the shaft is communicated to equal areas on the two sides by ducts and constrained to the design ar...	01/22/1985
4296675	Cylinder cushion with contractable ring A fluid pressure actuator consisting of piston structure reciprocal within a cylinder pressurized through ports at the cylinder ends wherein cushioning means is mounted upon the piston structure controlling the flow of fluid through the ports producing co...	10/27/1981
4165079	Fluid seal ring A seal ring of resilient material is disposed in a groove to provide a seal in a clearance space between a stationary member and a rotating member. The seal ring is cold-formed to provide axial undulations, prior to assembly, so that the seal ring has a g...	08/21/1979
4093242	Slag blower wall box seal A slag blower wall box has a first seal incorporated therein engagable with a slag blower or lance tube extending therethrough and a second seal fixed to the wall box and engagable with the slag blower and with a flange on the wall box. The second seal wh...	06/06/1978
4039197	Sealing ring A sealing ring is disclosed for sealing a pin which is displaceable chiefly along its axis through a passage in a housing wall into a chamber. A sealing ring housing is inserted into an annular groove in the housing wall. The sealing ring housing encompas...	08/02/1977

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Class 277/580 - Radially translatable in groove