| Patents for F16J 9 - Piston-rings, seats therefor; Ring sealings of similar construction in general (4,592) |
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| 05/12/2005 | WO2005043013A1 Oil control ring for pistons of internal combustion engines |
| 05/12/2005 | US20050100701 Hard carbon coating on substrate; multilayer; lubrication |
| 05/06/2005 | WO2005040645A1 Three piece-combined oil ring |
| 05/04/2005 | CN1611760A Forced sealing oil ring |
| 05/03/2005 | US6887585 Thermally applied coating of mechanically alloyed powders for piston rings |
| 05/03/2005 | US6886521 Sliding structure for automotive engine |
| 04/27/2005 | CN2695658Y Assembling piston gaseous ring with positioning sealing |
| 04/27/2005 | CN2695657Y Piston gaseous ring with concave-convex cut |
| 04/27/2005 | CN2695656Y Special sealing gaseous ring |
| 04/27/2005 | CN1198959C Method and device for providing a layer to a piston ring |
| 04/21/2005 | US20050081805 Internal combustion engine using opposed pistons |
| 04/20/2005 | EP1524459A2 Piston ring comprising a wear-resistant composition |
| 04/20/2005 | CN2694057Y Positioning stand for airtight gasket |
| 04/14/2005 | DE10340302A1 Ölabstreifring für Kolben von Verbrennungsmotoren Oil control ring for pistons of internal combustion engines |
| 04/07/2005 | US20050073107 Thermal spraying of a piston ring |
| 04/07/2005 | DE10221800B4 Verfahren zur Erzeugung von Verschleißschichten an Strahlkolbenringen Process for the production of wear layers of jet piston rings |
| 04/06/2005 | CN2690676Y Air ring for compressor piston |
| 03/31/2005 | US20050069724 Spraying piston ring |
| 03/31/2005 | DE10359802B3 Piston ring for e.g. internal combustion engine, has vapor-deposited layer covering part of running surface, which leaves sharp edges after subsequent removal |
| 03/30/2005 | EP1518656A1 Process for making a membrane for fluid-control apparatuses, and membrane made thereby |
| 03/23/2005 | EP1516136A1 Piston segment for internal combustion and compression ignition engine, cylinder and engine comprising same |
| 03/23/2005 | CN2687433Y Piston sealing structure |
| 03/17/2005 | WO2005024278A1 Oil scraper ring for pistons of internal combustion engines |
| 03/17/2005 | WO2005024277A1 Multipart oil wiping ring for pistons of internal combustion engines |
| 03/17/2005 | WO2005024276A1 Oil scraper ring for pistons of internal combustion engines |
| 03/17/2005 | WO2005023504A1 Method of dividing ceramics cylindrical body and shape of cutout part of the cylindrical body |
| 03/17/2005 | US20050058537 Structures for attaching or sealing a space between components having different coefficients or rates of thermal expansion |
| 03/16/2005 | EP1515070A1 Piston ring |
| 03/10/2005 | WO2005022011A1 Oil scraper ring ring groove arrangement for pistons of internal combustion engines |
| 03/10/2005 | US20050051970 Piston ring |
| 03/03/2005 | WO2005019706A1 Spacer expander |
| 03/02/2005 | EP1510594A2 Low-friction sliding member and low-friction sliding mechanism using same |
| 03/02/2005 | EP1413372B1 Method of mounting a metal sheet ring assembled and welded in a carrier hoop, to conform the annular cooling tube of a piston of internal combustion engine, and method of manufacture a metal sheet ring assembled with a carrier hoop |
| 03/01/2005 | US6860485 Piston ring |
| 02/24/2005 | DE10234539B4 Kolben mit einem offen vergossenen Kühlkanal-Ringträger und Verfahren zu seiner Herstellung Flask with an open-cast cooling channel Ring carrier and method for its manufacture |
| 02/23/2005 | CN2680936Y Full-sealing piston ring |
| 02/23/2005 | CN2680882Y Piston ring of internal combustion engine |
| 02/23/2005 | CN2680881Y Magnetic self-sealing piston ring |
| 02/23/2005 | CN1584353A Sliding member and production process thereof |
| 02/16/2005 | EP1356125B1 Method for pre-treating a ring support prior to the alfin process |
| 02/16/2005 | CN2679425Y Packed tower notch sealing ring of non-lub reciprocation piston type compressor |
| 02/10/2005 | US20050028779 Piston for an internal combustion engine |
| 02/09/2005 | EP1505322A1 Sliding member and production process thereof |
| 02/09/2005 | EP1504206A1 Method for producing anti-wear coatings on steel piston rings, and steel piston ring comprising one such anti-wear coating |
| 02/09/2005 | CN2677634Y Full closed piston ring |
| 01/26/2005 | CN2674206Y Non-broken piston ring |
| 01/26/2005 | CN1570427A Powdered metallurgical piston ring and process for production thereof |
| 01/19/2005 | EP1404960B1 Coolable annular support for internally cooled piston rings and method for the production thereof |
| 01/19/2005 | EP0800627B1 Piston assembly with piston ring support and sealing member |
| 01/19/2005 | CN2672380Y High pressure well head |
| 01/19/2005 | CN2672305Y Combined seal piston ring |
| 01/19/2005 | CN1185361C Method for producing machine components with at least one sliding surface |
| 01/13/2005 | WO2003078873A8 Seal ring |
| 01/13/2005 | DE10322032B3 Scraper ring for piston has groove in running surface interrupted in region of abutment |
| 01/05/2005 | CN2668876Y Openless environmental-protection piston ring for internal combustion engine |
| 01/05/2005 | CN1560308A Nodular cast iron piston ring containing vanadium titanium alloy |
| 01/04/2005 | US6838196 A composite of an intermetallic matrix of nickel aluminide (NiAl or Ni3Al) which supports a ceramic and keeps the hard phase in place; wear-resistance; high-temperature, heat resistance; protective coatings; marine diesel engines |
| 01/04/2005 | US6837205 Internal combustion engine |
| 01/04/2005 | US6837146 Piston for internal combustion engines |
| 12/29/2004 | EP0791738B1 Method and device for producing abrasion resistant piston ring |
| 12/29/2004 | CN2667244Y Piston ring coated with wear resistant nickel base alloy |
| 12/29/2004 | CN2667243Y Flowing aid |
| 12/28/2004 | US6834861 Two piece oil control ring with nitrided surface layers |
| 12/23/2004 | WO2004111503A1 Reciprocating piston engine |
| 12/23/2004 | US20040256811 Seal for high-pressure pumping system |
| 12/21/2004 | US6833165 Coating piston ring with a melted protective coating material, melted by electric arc plasma flame, propelling onto the ring; comprising a chromium nitride or a chromium carbide and chromium silicide; wear resistance |
| 12/16/2004 | US20040251634 Resin seal ring and manufacturing method |
| 12/15/2004 | EP1486705A1 Seal ring |
| 12/09/2004 | US20040244194 Metal ring assembly which is assembled and soldered to a support collar in order to form the annular cooling conduit of an internal combustion engine piston, the method of producing said finned metal ring and the metal ring thus obtained |
| 12/08/2004 | CN2661989Y Self-locking hydraulic cylinder |
| 12/08/2004 | CN2661943Y Scabbled and honed piston ring |
| 12/02/2004 | US20040237776 Piston ring coating |
| 12/02/2004 | US20040237775 Contoured piston |
| 12/01/2004 | EP1482075A1 Piston ring coating |
| 12/01/2004 | EP1441156A4 Piston seal |
| 12/01/2004 | EP1315924B1 Piston ring for piston engines |
| 12/01/2004 | CN2660229Y Curved chamber piston ring |
| 11/25/2004 | US20040232623 Oil ring for an internal combustion engine |
| 11/25/2004 | DE10319141A1 Kolben für einen Großmotor sowie Verfahren zur Herstellung einer Verschleißschutzschicht bei einem derartigen Kolben A piston for a large engine and method of producing a wear-resistant layer in such a piston |
| 11/24/2004 | EP1478791A1 Thermal spraying of a piston ring |
| 11/24/2004 | EP1478790A1 Thermal spraying of a machine part |
| 11/18/2004 | DE19734480B4 Gleitbauteil zur Verwendung mit einem Leichtmetall The sliding component for use with a light metal |
| 11/17/2004 | EP1476587A1 Piston ring comprising a pvd coating |
| 11/11/2004 | WO2004097272A1 Piston for a large-size engine, and method for the production of a wear-resistant layer in such a piston |
| 11/10/2004 | CN1544805A Piston ring for automatically closing and adjusting clearance |
| 11/10/2004 | CN1175247C Method and device for determining state of pair in cylinder of internal combustion engine |
| 11/04/2004 | WO2004094809A1 Oil ring, method of producing the same, and piston structure using the oil ring |
| 11/04/2004 | US20040217550 Piston ring for internal combustion engine and internal combusion engine using the same |
| 11/04/2004 | US20040216606 Piston ring coating |
| 10/27/2004 | EP1001156B1 An oil sealing ring |
| 10/27/2004 | CN2651525Y Piston oil ring |
| 10/21/2004 | WO2004090389A1 A piston ring for an internal combustion engine |
| 10/21/2004 | WO2004090318A1 Combination oil ring |
| 10/21/2004 | DE10314034A1 Kolbenring Piston ring |
| 10/21/2004 | DE10061750B4 Wolframhaltige Verschleißschutzschicht für Kolbenringe Tungsten-containing anti-wear layer for piston rings |
| 10/20/2004 | CN1172015C Piston ring of modular graphite cost iron containing V-Ti alloy and its manufacturing technology |
| 10/14/2004 | WO2004088179A1 Piston ring |
| 10/13/2004 | EP1467129A1 Spraying piston ring |
| 10/13/2004 | CN2648187Y Efficient booster piston ring |
| 10/13/2004 | CN2648186Y Non-end gap piston ring |