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| Number | Title | Issue Date |
| 7559555 | Resin seal ring and manufacturing method The present invention provides a seal ring which can be prevented from being broken by an expansion and a shock applied thereto when the seal ring is fitted on a rotary shaft and does not have a configurative disadvantage such as a burr. Therefore no post-processing... | 07/14/2009 |
| 7267330 | Split ring seal A split ring seal having a structured split formed with first and second overlapping leaves, movable between a compressed state and an expanded state, and having a first bore through the first leaf and a second bore through the second leaf such that, in the compress... | 09/11/2007 |
| 6997460 | Piston ring for piston engines The invention relates to a slot piston ring (1) for the pistons of internal combustion engines or compressors, having a peripheral recess (9) (a so-called scraper ring) that extends close to the slot (2) on the external periphery (3) of t... | 02/14/2006 |
| 6845681 | Starter motor having seal member for sealing axial end of housing A front end of a starter motor housing is sealed by a resilient seal member disposed between a bearing and a front end wall of the housing. A shaft carrying a pinion at its front end is rotatably and slidably supported by the bearing in an over hang fashion. The sea... | 01/25/2005 |
| 6631908 | Compression piston ring A compression piston ring includes a ring gap defined by facing first and second end faces; a ring back situated diametrically opposite the ring gap; first and fourth quadrants extending from opposite sides of the ring gap and second and third quadrants e... | 10/14/2003 |
| 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 |
| 6367808 | Sealing ring for a dry running piston rod A sealing ring, in particular for a piston rod with a circular cross-section, which has a height in the axial direction as well as a surface oriented towards a sliding surface, with the surface being executed to extend cylindrically over a part of the hei... | 04/09/2002 |
| 6322080 | Sealing arrangement Sealing arrangement for a piston rod with a circular cross-section, comprising a one-piece sealing ring with a parting joint and compensation clearance as well as a cover ring surrounding the sealing ring in the peripheral direction, with the sealing ring... | 11/27/2001 |
| 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 |
| 5133564 | Piston ring assembly for stirling engine A piston ring assembly for use in a stirling engine, which includes main rings each having a slit and a slanted surface for preventing ring rotations against one another wherein the main rings are engaged in a ring groove disposed at the exterior of a pis... | 07/28/1992 |
| 4615531 | Double ring piston sealing arrangement An improved dual ring sealing arrangement (10) for a piston head (17) having at least one circumferential groove (15) formed therein, wherein the arrangement comprises a first sealing ring (13) having a recess (23) adapted to receive a protrusion (22) for... | 10/07/1986 |
| 4256318 | Piston ring A parted annular piston ring having an outer periphery for engaging a cylinder wall of an internal combustion engine. A band of hard, wear-resistant material is secured in a groove which extends circumferentially completely around the outer periphery. The... | 03/17/1981 |
