| Patents for F16J 9 - Piston-rings, seats therefor; Ring sealings of similar construction in general (4,592) |
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| 04/08/2008 | US7354045 Oil ring |
| 04/02/2008 | EP1906035A2 Controlled deflection roll |
| 04/02/2008 | EP1904768A2 Upper sealing segment |
| 04/02/2008 | EP1904767A2 Oil-control ring for an internal combustion engine |
| 03/27/2008 | US20080072661 Bottle finish scoring head and method |
| 03/27/2008 | DE202007017339U1 Kolbenmaschine Piston engine |
| 03/27/2008 | DE102006043301A1 Ring support has ring support part and cooling channel part, which is connected with ring support part and formed together with ring support part of closed cooling channel, and surface of ring support part that pointing to cooling channel |
| 03/26/2008 | EP1377766B1 Side rail and combined oil control ring incorporated with the side rails for reduction of oil consumption |
| 03/26/2008 | CN201041231Y Combined type piston ring with novel positioning device |
| 03/26/2008 | CN201041230Y Self-closed combined piston ring |
| 03/26/2008 | CN201041088Y Closed type piston ring |
| 03/26/2008 | CN101149022A Air leak proof piston ring |
| 03/26/2008 | CN101149021A Low friction sliding mechanism |
| 03/20/2008 | WO2008033162A2 Pressure gradient rotary sealing system with external piston |
| 03/20/2008 | US20080067753 Seal assembly |
| 03/19/2008 | EP1899632A1 A piston, a ring and a piston assembly for a two cycle engine |
| 03/12/2008 | EP1898065A1 Piston for two stroke large diesel engine and two stroke large diesel engine |
| 03/12/2008 | CN201034158Y Novel compression piston ring |
| 03/11/2008 | US7341256 Seal ring |
| 03/06/2008 | US20080053423 Bolt with reduced impact to incoming projectile |
| 03/05/2008 | CN201031739Y Improved sealing piston ring |
| 03/05/2008 | CN201031738Y Riveting type biplate gas ring |
| 03/04/2008 | US7337539 Method for production of a coolable annular support for internally cooled piston rings |
| 02/27/2008 | EP1892444A1 Lip type seal |
| 02/27/2008 | EP1891357A1 Packing seal and piston comprising such a packing seal |
| 02/27/2008 | EP1608899B1 Piston ring |
| 02/27/2008 | CN201027968Y Plastic soft belt piston ring |
| 02/27/2008 | CN201027967Y Combined piston ring |
| 02/27/2008 | CN201027574Y Sealing piston ring with circular arc rabbet |
| 02/27/2008 | CN101131207A Overlap joint type elastic sealing ring at general mechanical equipment rotating position |
| 02/26/2008 | CA2341242C Replaceable mud pump piston seal |
| 02/21/2008 | WO2008019716A1 Steel material, in particular for producing piston rings |
| 02/21/2008 | US20080042368 Piston ring assembly including a self accommodating smart piston ring |
| 02/20/2008 | CN201025153Y Sealing piston ring of gas engine |
| 02/19/2008 | US7332199 Piston ring coated with a coating material by a thermal spraying, exposed to heat treatment to at least partially diffuse the coating material into the piston ring surface or underlying layer of coating material, additionally applied coating material layer subject to successive heat treatments |
| 02/14/2008 | WO2008017195A1 A piston ring without end clearance and a piston with said ring |
| 02/13/2008 | CN100368684C Compact simplified compressor apparatus |
| 02/07/2008 | WO2008016010A1 Piston ring |
| 02/07/2008 | WO2008016009A1 Piston ring |
| 02/07/2008 | WO2007146381A3 A method for compression moulding splitted rings |
| 02/07/2008 | DE102006028467A1 Dichtung und Dichtungsanordnung Seal and seal assembly |
| 02/06/2008 | EP1883717A1 Piston ring having hard multi-layer coating |
| 02/06/2008 | CN201016391Y Servo sealing piece for floating sealed double triangular connector portion |
| 02/06/2008 | CN201016312Y Sealed piston ring |
| 02/06/2008 | CN201016311Y Integral piston ring |
| 02/06/2008 | CN201016310Y Integral piston ring |
| 02/06/2008 | CN100366959C Sealing element for air compressor valve |
| 02/06/2008 | CN100366883C 往复式发动机 Reciprocating engines |
| 02/06/2008 | CN100366874C Internal combustion engine using opposed pistons |
| 01/31/2008 | WO2008013281A1 Seal ring |
| 01/31/2008 | US20080025855 Piston Pump And Piston Ring |
| 01/31/2008 | US20080023919 Seal ring |
| 01/31/2008 | US20080023918 Leak-by sealing system for a shuttle piston |
| 01/31/2008 | DE102007033728A1 Oberflächenbehandelter Kompressionsring und Herstellungsverfahren Surface treated compression ring and manufacturing processes |
| 01/31/2008 | DE102006030881A1 Two-piece oil wiper ring, has bearing surface rod provided with wear protection section and exhibiting symmetrical round surface chamfer such that surface chamfer running from edges of running surface rod begins with radius |
| 01/30/2008 | CN201013891Y Novel O shape ring |
| 01/30/2008 | CN201013473Y Combined type novel piston ring |
| 01/30/2008 | CN201013472Y Novel combined type piston ring |
| 01/30/2008 | CN100365325C Reciprocating piston engine |
| 01/24/2008 | WO2008010490A1 Cycloid reciprocating engine and pump employing this crank mechanism |
| 01/23/2008 | CN101111670A Rotor recess with scupper slots and free casting |
| 01/17/2008 | US20080012237 Dynamic seal for use in high-speed turbomachinery |
| 01/16/2008 | EP1878901A1 Reciprocating engine |
| 01/16/2008 | EP1877686A1 Piston for a reciprocating-piston internal combustion engine provided with hardened piston ring grooves |
| 01/16/2008 | CN201007346Y Stationary ring of Mechanical sealing device for pump |
| 01/15/2008 | US7318963 Composite chromium plating film and sliding member having the same and method for manufacture thereof |
| 01/10/2008 | US20080007007 Sealing flange for sealing a shaft |
| 01/10/2008 | DE102006045959B3 Cylinder piston unit, e.g. for drug syringes with rubber pistons, has a cylinder and a piston guided in the cylinder and sealed with rubber in a sterile manner |
| 01/09/2008 | EP1876345A1 Piston ring for internal combustion engines |
| 01/09/2008 | CN201003605Y Piston ring slantly inserted seal pressure ring combination |
| 01/09/2008 | CN201003604Y Main packing cup of braking master cylinder |
| 01/09/2008 | CN201003432Y Bidirectionally closed type piston ring |
| 01/09/2008 | CN101100963A Piston ring for internal combustion engines |
| 01/09/2008 | CN100360701C Heat spraying of piston ring |
| 01/08/2008 | USRE39998 Composite wear component |
| 01/03/2008 | WO2008000206A1 Oil scraper ring |
| 01/03/2008 | DE102006029391A1 Vehicle brake system piston pump, has piston sealant arranged between cylinder and piston, and formed with elastomer sealing unit and metal spring unit, which pushes section of elastomer sealing unit radially against piston |
| 01/02/2008 | CN200999861Y Flexible liquid filling hole cavity composite sealing ring |
| 12/27/2007 | WO2007147532A2 Piston ring with chromium nitride coating for internal combustion engines |
| 12/27/2007 | DE19905518B4 Eine Kombination von Kolbendichtringen zur Verwendung bei Verbrennungskraftmotoren A combination of compression rings for use in internal combustion engines |
| 12/26/2007 | EP1660793B1 Oil scraper ring for pistons of internal combustion engines |
| 12/21/2007 | WO2007146381A2 A method for compression moulding splitted rings |
| 12/21/2007 | CA2649815A1 A method for making a pressed part with separations or voids |
| 12/13/2007 | US20070283917 Piston for a combustion engine |
| 12/11/2007 | US7306234 Oil control ring for pistons of internal combustion engines |
| 12/11/2007 | US7306233 Combined oil control ring |
| 12/11/2007 | US7306232 Multipart oil wiping ring for pistons of internal combustion engines |
| 12/06/2007 | US20070278747 Sealing Device |
| 12/05/2007 | CN101081915A Fluid-resistant heat-proof chlorinated polyethylene |
| 12/05/2007 | CN100353047C Novel process for making piston ring |
| 11/29/2007 | WO2007134658A1 Cast iron material for producing piston rings and cylinder linings |
| 11/29/2007 | US20070272078 Piston Device for Internal Combustion Engine |
| 11/29/2007 | CA2652229A1 Mechanical seal assembly |
| 11/28/2007 | EP1859067A1 Ledeburite cast iron with a high carbide content and an evenly distributed graphite embodiment |
| 11/28/2007 | CN101078382A Combined sealing gas ring |
| 11/21/2007 | CN101074729A Resin coated piston manufacturing apparatus for shock absorber |
| 11/15/2007 | WO2007128302A1 Piston ring for the piston of an internal combustion engine |
| 11/15/2007 | US20070262533 Scraper ring |
| 11/15/2007 | DE112005003175T5 Durch Spritzgießen herstellbare Kolbenringe Be produced by injection piston rings |
| 11/15/2007 | DE102006030348B3 Ölabstreifring Oil ring |