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| Number | Title | Issue Date |
| 6959930 | Combination oil scrapper ring/gas seal assembly A ring assembly, including a first oil scraper ring, a center oil scraper ring and a gas seal ring, adapted for disposition in a single groove of a packing cup which can be stationarily mounted over and around a reciprocally movable piston rod of a gas compressor. T... | 11/01/2005 |
| 6712363 | Compression ring sealing device with end gap control and a method of manufacturing same A sealing method and method according to which a first and second ring are each provided with split ends, and an arcuate lip extends from one end portion of the each ring and in an axial direction relative to the ring and projects outwardly from the face of the ring... | 03/30/2004 |
| 6439578 | Sealing ring combination Two axially abutting individual rings (4, 5) arranged in a shared casing recess (3) at the passage (6) of a component (2) to be sealed, which each is formed of several ring segments (4', 5') pressed against the component (2) to be sealed by a common perip... | 08/27/2002 |
| 6428010 | Sealing strip A sealing strip is provided for sealing a space between two parts of a machine, for example, a rotary engine. The two parts form a groove for receiving the sealing strip. The sealing strip includes a filler piece, at least one spring element, at least one... | 08/06/2002 |
| 6419234 | Oil sealing ring The present invention relates to an oil sealing ring, especially that used in piston of internal combustion engine or compressor. This oil sealing ring comprises a base ring (2) with a split. An elastic ring (3) is provided in the inner circumference surf... | 07/16/2002 |
| 6378875 | Sealing ring The invention relates to a sealing ring for sealing a piston rod of a piston compressor. The sealing ring comprises three segments, wherein the segments have portions extending in the circumferential direction of the sealing ring, which form an overlappin... | 04/30/2002 |
| 6193236 | Packing seal having at least two axially adjacent segment rings A packing seal is provided which is intended in particular for reciprocating piston engines and which can be placed into a circumferential groove of a piston of such a reciprocating piston engine. The packing seal includes a first segment ring (1), which ... | 02/27/2001 |
| 6105970 | Seal arrangement A sealing arrangement for establishing a seal between two machine elements, such as a rod or piston undergoing axial motion within a housing. A rod or piston seal is arranged in a groove of the second machine element, which typically is the housing of the... | 08/22/2000 |
| 6045135 | Sealing ring disk A sealing ring disk for a seal at a piston rod with a circular cross-section. The sealing ring disk includes a ring-shaped seal part with a sector-like cut-out as well as a closure part having a main part matched to the cut-out in such a manner that the m... | 04/04/2000 |
| 5794941 | Piston ring assembly An improved piston ring assembly comprises a double-offset expander spring and a piston ring. The expander spring has a first wave portion that is continuously engaged in an annular groove of a piston body, the wave portion having an axial extent that is ... | 08/18/1998 |
| 5618048 | Piston ring seal having angled ends A seal assembly includes first and second annular members which reside in axial juxtaposition to be carried by one of a pair of coaxially movable components for sealingly engaging the other of the pair of components. Each of the members is severed by an e... | 04/08/1997 |
| 4346903 | High-pressure seal in piston A high-pressure seal having a dynamic seal ring and a static seal ring supported by a backup ring is improved upon such that support ring is a one-piece construction having sealing chambers respectively defined together with the bore wall of the cylinder ... | 08/31/1982 |
| 4185840 | Multilayer seal A multilayer seal comprising a stack of rings, some being made of elastomeric material and some being made of more rigid material, such as a metal. The elastomeric and rigid rings alternate in the axial direction of the stack, and the elastomeric rings ar... | 01/29/1980 |
| 4032159 | Interference compression seal An interference compression seal comprising a delta-shaped seal of relatively soft elastomeric material adapted to be placed in a groove between relatively moving machine parts with the apex of the delta directed radially outwardly creating a line seal an... | 06/28/1977 |
