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A kissing shield comprised of a thin, flexible membrane and a frame or holder.
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| Number | Title | Issue Date |
| 7252292 | Oil ring for an internal combustion engine An oil ring for an internal combustion engine, comprising a metallic annular body (10) to be mounted around a piston (P) reciprocating inside a cylinder (C) of the engine, said annular body (10) having opposite lateral faces (11), an internal fa... | 08/07/2007 |
| 6517081 | Machinery seal A seal assembly for a groove or seal gland in a relatively displaceable machine part for sealing an axial machine part extending therethrough comprises a pair of annular seal elements and a support element disposed between the annular elements and radiall... | 02/11/2003 |
| 5328177 | Contaminant resistant piston seal with energized backup scrapers The inner annular surface of a load ring includes a concave contour such that when pressure is applied to the center of the outer surface the elastomer material will flatten out and cause oppositely disposed feet to kick up and radially outwardly and in t... | 07/12/1994 |
| 5275422 | Sealing assembly This invention relates to a fluid sealing mechanism for the inside diameter and or the outside diameter of a piston-cylinder arrangement. This device results in zero seal leakage path with low differential seal pressure required using only one piston ring... | 01/04/1994 |
| 5253877 | Piston ring having tapered outwardly extending wiper A piston head assembly has one, two or more grooves to receive piston rings. One or more of the grooves may receive multiple piston rings. One of the piston rings may have a wiper extension on the lower outside edge of the ring either of metal or elastome... | 10/19/1993 |
| 5199722 | Seal assembly for stirling engine A Stirling engine seal assembly includes a seal ring body and an expander. The seal ring body consists of a matrix made of polytetrafluoroethylene compounded and filled with carbon fibers and at least one powder selected from the group consisting of carbo... | 04/06/1993 |
| 5028055 | Substantially zero leakage path sealing assembly with additional line to line ring This invention relates to a fluid sealing mechanism for the inside diameter and or the outside diameter of a piston-cylinder arrangement. This device results in substantially zero seal leakage path with low differential seal pressure required using only o... | 07/02/1991 |
| 4840379 | Split sealing ring having a bias cut An improved generally annular split sealing ring includes generally curved radially inner and outer surfaces and opposed first and second axial surfaces extending between the inner and outer surfaces. The sealing ring has an axially extending, radially ce... | 06/20/1989 |
| 4767123 | Dual ring piston-ring system with spring ring bias means A piston-ring system has two, equal-radius, coaxial, axially-contiguous sealing rings, each ring having a split circumferential offset from the split in the other ring, each split being substantially Z-shaped in a plane normal to the axis of the rings to ... | 08/30/1988 |
| 4722507 | Piston sealing ring apparatus A sealing ring device is provided for a fluid valve having a piston (2) reciprocating within a cylinder (1), wherein the piston (2) includes a valve cone (2c) adapted to contact a valve seat (11). In order to seal the inner space of the cylinder (1) locat... | 02/02/1988 |
| 4674754 | Back-up means for fluid cylinder and method for using same The back-up rings of the present invention are seated on opposite sides of a sealing ring within an annular groove of a hydraulic piston. The sealing ring is in frictional engagement with the interior surface of the hydraulic cylinder, and the back-up rin... | 06/23/1987 |
| 4602791 | High pressure seal assembly A seal assembly for sealing two relatively movable parts against fluid leakage comprises a seal ring of compressible material mounted on one of the parts, and a supporting ring of non-compressible material positioned in an axial annular groove in said sea... | 07/29/1986 |
| 4516481 | Piston and piston rings set New assembly of cylinder, lightweight piston and piston rings for engines and compressors comprising in a cylinder a reduced weight piston provided with a new simpler piston rings set of a high efficiency producing a very small tension against the cylinde... | 05/14/1985 |
| 4109921 | Seal for pistons and piston rods of cylinder-type actuators An annular seal for pistons and piston rods of cylinder-type actuators, especially hydraulic actuators, where a first sealing ring of highly elastic material is received inside an annular groove in such a way that a sharp edge of the ring exerts an elevat... | 08/29/1978 |
| 4102608 | Reciprocatory piston and cylinder machines Vacuum pump of reciprocating piston and cylinder type. Cylinder is stepped to have front large diameter portion and rear small diameter portion. Piston has enlarged head portion sliding in front portion of cylinder and rear portion sliding in rear portion... | 07/25/1978 |
| 4090719 | Packing assembly A packing assembly for a pump employed to force fluid at a high velocity includes at least one vee shaped packing ring and a graphite ring positioned adjacent to and abutting the packing ring. These rings are maintained as one unit by first and second ada... | 05/23/1978 |
| 4027816 | Seal assembly An improved seal assembly for sealing between relatively movable members in an oil tool or the like including a split protective ring held in position by a seal ring having a circumferential locking shoulder.... | 06/07/1977 |
| 3942808 | Piston ring assembly A piston ring assembly having a pair of resilient split rings of identical cross section in a single piston groove in which the rings contact each other over a large surface to maintain the gap of one ring diametrically opposed relative to the gap of the ... | 03/09/1976 |
