| Patents for F16J 9 - Piston-rings, seats therefor; Ring sealings of similar construction in general (4,592) |
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| 01/14/2009 | CN101343768A Functional end face chromium plating method for piston ring and special jig |
| 01/08/2009 | DE202008012376U1 Profilliertes Führungsband aus thermoplastischem Werkstoff (PEEK) für Hydraulikzylinder Profile Demolished guide strip of thermoplastic material (PEEK) for hydraulic cylinders |
| 01/08/2009 | DE102007029992A1 Kolbenring Piston ring |
| 01/07/2009 | EP2011892A1 Piston ring material for internal combustion engine |
| 01/07/2009 | CN101338819A L-shaped slip-ring sealed ring |
| 01/07/2009 | CN101338707A Piston, piston ring assembly for internal combustion engine |
| 01/07/2009 | CN101338445A Wear resistant coating of piston ring for internal-combustion engine and electroplating process |
| 01/02/2009 | DE102006009022B4 Kolben eines Verbrennungsmotors Piston of an internal combustion engine |
| 01/01/2009 | US20090001669 Sliding Element, in Particular Piston Ring, Method for Manufacturing a Sliding Element, Sliding System and Coating for a Sliding Element |
| 12/31/2008 | WO2009002014A1 Sealing apparatus for square piston used for compressing and feeding fluid |
| 12/31/2008 | WO2009000245A1 Piston ring |
| 12/31/2008 | CN100447396C Oblique-connected sealer gas-ring combination of piston ring |
| 12/24/2008 | WO2008154934A1 Piston ring with a sulphonitriding treatment |
| 12/24/2008 | EP2005040A1 Piston for an internal combustion engine having two ring grooves, wherein one ring groove has a ring carrier |
| 12/24/2008 | DE102007027815A1 Ölabstreifring Oil ring |
| 12/24/2008 | CN201170312Y Piston ring seal sheet |
| 12/24/2008 | CN101328603A Galvanic deposit chromium-based two-component particle composite reinforced surface treating piston ring and production method thereof |
| 12/24/2008 | CN100445609C Multipart oil wiping ring for pistons of internal combustion engines |
| 12/24/2008 | CN100445544C Piston with pressure-reducing piston ring |
| 12/18/2008 | WO2008153041A1 Wire rod for i-type oil ring, and its manufacturing method |
| 12/18/2008 | WO2008152104A1 Piston ring |
| 12/18/2008 | WO2008151873A1 Engine part, and use of a cast iron alloy for an engine part |
| 12/18/2008 | WO2008151619A1 Piston ring for the piston of an internal combustion engine |
| 12/18/2008 | WO2008151589A1 Oil wiper ring |
| 12/18/2008 | WO2007115193A3 Methods and apparatus for operating an internal combustion engine |
| 12/18/2008 | US20080309022 Two-Part Oil Scraper Ring for Internal Combustion Engines |
| 12/18/2008 | US20080309021 Packing Seal and Piston Comprising Such a Packing Seal |
| 12/18/2008 | US20080309020 Plunger with annular exterior seals and method of installing annular seals on an exterior surface of a plunger |
| 12/18/2008 | DE102007027245A1 Kolbenring Piston ring |
| 12/17/2008 | EP2003375A1 Motor component and application of a cast iron alloy for a motor component |
| 12/16/2008 | US7464683 Reciprocating engine |
| 12/11/2008 | DE112007000435T5 Kolbenring Piston ring |
| 12/10/2008 | CN201162585Y Abrasion-proof piston ring |
| 12/09/2008 | CA2354904C Piston ring locator |
| 12/04/2008 | WO2008145546A1 Sealing ring |
| 12/04/2008 | US20080296848 Annular sealing member with enhanced hoop strength |
| 12/04/2008 | US20080296405 Rotary joint seal for a decoking tool |
| 12/04/2008 | US20080296402 Retention system |
| 12/03/2008 | CN201159281Y Hexagonal piston ring positioning pin |
| 12/03/2008 | CN100439771C Spacer expander |
| 12/02/2008 | US7458585 Sliding member and production process thereof |
| 11/27/2008 | US20080289491 Powder-Metallurgically Produced Piston Body Comprising Support Webs |
| 11/27/2008 | US20080289489 Composite Piston Unit and Automatic Vehicle Transmission |
| 11/27/2008 | US20080289328 Power Piston Sealing Assembly |
| 11/26/2008 | CN201155605Y Seal |
| 11/26/2008 | CN201155565Y Metal piston-ring |
| 11/26/2008 | CN201155379Y Gas and oil ring |
| 11/20/2008 | US20080282695 Displacer Piston Assembly |
| 11/19/2008 | EP1350045B1 Method for producing a ring support with a sheet metal cooling channel welded thereon |
| 11/19/2008 | CN101310133A Sealing device for internal combustion engine piston |
| 11/19/2008 | CN100434770C Torque converter clutch apply valve and improved automatic transinission for motov vehicle, and method for restoring its hydraulic integraty |
| 11/13/2008 | WO2007136453A3 Mechanical seal assembly |
| 11/13/2008 | US20080277882 Seal ring |
| 11/13/2008 | US20080276919 Piston, A Ring and a Piston Assembly for a Two Cycle Engine |
| 11/12/2008 | EP1990564A1 Sliding member and production process thereof |
| 11/12/2008 | EP1375695B1 Wear-resistant sliding member |
| 11/12/2008 | EP1224341B1 Process for electrolytic coating of a substrate |
| 11/12/2008 | CN201149079Y Combined piston ring |
| 11/12/2008 | CN101303081A Piston seal ring |
| 11/06/2008 | US20080273936 Method for Producing Rotationally Symmetrical, undercut Contours |
| 10/30/2008 | US20080265518 Piston ring and a fluid sucking/discharge device with the piston ring |
| 10/30/2008 | CA2630081A1 Seals, sealed systems, and methods for sealing a shaft |
| 10/29/2008 | EP1985895A2 Piston ring and a fluid sucking/discharge device with the piston ring |
| 10/29/2008 | EP1984662A2 Fiber-to-the-home (ftth) optical receiver with distributed gain control |
| 10/29/2008 | EP1859067B1 Ledeburite cast iron with a high carbide content and an evenly distributed graphite embodiment |
| 10/28/2008 | US7441402 Exhaust gas control apparatus and exhaust gas control method for internal combustion engine |
| 10/28/2008 | CA2395677C Tank piston with improved seal and wiper |
| 10/23/2008 | WO2008126866A1 Sealing device |
| 10/23/2008 | US20080256794 Method For the Production of a Piston Ring For Internal Combustion Engine and a Piston Ring of this Type |
| 10/22/2008 | EP1697663A4 Viscous material dispenser piston |
| 10/22/2008 | CN201137695Y K -type pneumatic member rubber seal |
| 10/22/2008 | CN101290023A Oil cylinder |
| 10/22/2008 | CN100427815C Oil scraper ring for pistons of internal combustion engines |
| 10/16/2008 | WO2008122259A1 Piston for an internal combustion engine |
| 10/16/2008 | US20080252902 Method and Device for Detecting Direction of Member Having Outer Periphery Formed in Vertically Asymmetrical Shape |
| 10/16/2008 | US20080252019 Oil sealing ring |
| 10/16/2008 | US20080250923 Piston and process for manufacturing the same |
| 10/15/2008 | EP1980773A1 Thermal spraying method for coating a piston ring groove, application of a spray wire and piston with a thermal spray coating |
| 10/15/2008 | CN201133484Y Gate valve combined seal ring |
| 10/15/2008 | CN101287937A Piston for a reciprocating-piston internal combustion engine provided with hardened piston ring grooves |
| 10/09/2008 | US20080246225 Piston Pump |
| 10/09/2008 | US20080246178 Method For Dividing Ceramic Cylindrical Body and Shape of Notched Portions Thereof |
| 10/08/2008 | EP1977147A2 Seal cartridge control valve |
| 10/08/2008 | EP1379705B1 Intermetallic wear-resistant material for piston rings |
| 10/08/2008 | CN201129450Y Seal ring |
| 10/07/2008 | US7431305 Oil scraper ring ring groove arrangement for pistons of internal combustion engines |
| 10/01/2008 | CN201126048Y Vehicle pressure-limiting valve |
| 10/01/2008 | CN201125798Y Point staggered type biplate self-closing complementary energy-saving piston ring |
| 10/01/2008 | CN101275674A Sealing oil ring |
| 09/30/2008 | US7429048 Piston ring with projection |
| 09/24/2008 | CN101270804A Electric-controlled shifting mechanism for engineering machinery |
| 09/24/2008 | CN100420843C Spraying piston ring |
| 09/23/2008 | US7426936 Fully independent, redundant fluid energized sealing solution with secondary containment |
| 09/10/2008 | EP1966524A1 Sliding element, in particular piston ring, method for manufacturing a sliding element, sliding system and coating for a sliding element |
| 09/04/2008 | DE102007019510B3 Process to run-in a large marine two-stroke diesel engine with soft abrasion coating on piston rings |
| 09/03/2008 | EP1963721A1 Piston ring for internal combustion engines |
| 09/03/2008 | CN101255330A Atmosphere pressure sintered microporous carborundum graphite self-lubricating seal ring and method for manufacturing same |
| 09/03/2008 | CN100416142C Seal for a rotating member |
| 09/02/2008 | CA2597510C Fractured seal ring |
| 08/28/2008 | US20080203674 Piston Ring Having Hard Multi-Layer Coating |