| Patents for F16J 9 - Piston-rings, seats therefor; Ring sealings of similar construction in general (4,592) |
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| 08/28/2008 | US20080202603 Pressure Reducer |
| 08/28/2008 | US20080202330 Rotor Recess With Scupper Slots and Free Casting |
| 08/28/2008 | DE102007007963A1 Kolbenring Piston ring |
| 08/28/2008 | DE102007007960A1 Kolbenring Piston ring |
| 08/27/2008 | CN201106678Y Crossover sliding type mouth-leak-protect piston ring |
| 08/27/2008 | CN201106677Y Two-piece assembled piston ring |
| 08/27/2008 | CN201106676Y High speed ball screw pair opening elastic sealing ring |
| 08/27/2008 | CN101253353A Method for manufacturing a piston ring for internal combustion engines, and a piston ring of this type |
| 08/27/2008 | CN101253352A Oil-control ring for an internal combustion engine |
| 08/21/2008 | WO2008098548A1 Piston ring |
| 08/21/2008 | WO2008098547A1 Piston ring |
| 08/21/2008 | WO2008098546A1 Piston ring |
| 08/21/2008 | WO2008098544A1 Piston ring |
| 08/21/2008 | WO2008098534A1 Piston ring |
| 08/21/2008 | DE102007007965A1 Kolbenring Piston ring |
| 08/21/2008 | DE102007007961A1 Kolbenring Piston ring |
| 08/20/2008 | CN201103683Y Gas spring sealing ring of U-shape/L-shape framework |
| 08/20/2008 | CN201103682Y The first secondary leather cup of vehicle brake master cylinder |
| 08/20/2008 | CN201103681Y Sealing ring |
| 08/20/2008 | CN201103489Y Cooling gas ring |
| 08/13/2008 | CN201100405Y Dust prevention ring for cone crusher |
| 08/13/2008 | CN101240745A Internal combustion engine using opposed pistons |
| 08/13/2008 | CN100410569C Oil ring |
| 08/07/2008 | WO2008040695A3 Piston ring for internal combustion engines |
| 08/06/2008 | CN201096191Y Sealing ring |
| 08/06/2008 | CN201096029Y Superposed closed type piston ring |
| 08/06/2008 | CN101238314A Multi-part oil scraper ring for internal combustion engines |
| 08/06/2008 | CN101238313A Two-part oil scraper ring for internal combustion engines |
| 08/06/2008 | CN100408892C Rotary seal device and turbine supercharger comprising the same |
| 08/06/2008 | CN100408891C Piston for a large-size engine, and method for the production of a wear-resistant layer in such a piston |
| 08/06/2008 | CN100408838C 活塞环 Piston Ring |
| 07/31/2008 | WO2008040694A3 Piston ring for internal combustion engines |
| 07/30/2008 | CN201093067Y Piston rod sealing element |
| 07/30/2008 | CN201093066Y Piston rod sealing element |
| 07/30/2008 | CN201093065Y Piston rod sealing element |
| 07/30/2008 | CN201093064Y Piston rod sealing element |
| 07/30/2008 | CN201093063Y Piston rod sealing element |
| 07/30/2008 | CN201093062Y Piston ring |
| 07/30/2008 | CN201092898Y Air leakage protection assembled piston ring |
| 07/30/2008 | CN100406789C 内燃机活塞刮油环 Internal combustion piston oil scraper ring |
| 07/29/2008 | CA2506184C Rodless slide assembly |
| 07/24/2008 | WO2008087375A1 Pistons for internal combustion engines |
| 07/24/2008 | WO2008087043A1 Housing with piston ring as a shaft seal, in particular for a mill for milling or for mill-drying organic raw substances |
| 07/23/2008 | CN201090743Y Air separator pneumatic sealing device |
| 07/23/2008 | CN201090732Y Quick reaction sealing ring for hydraulic seal |
| 07/23/2008 | CN201090731Y High pressure self-lubricating Y-shaped seal ring |
| 07/23/2008 | CN100404924C Seals for hydraulic assemblies |
| 07/23/2008 | CN100404923C Oil scraper ring for pistons of internal combustion engines |
| 07/22/2008 | US7401792 Sealing device and method for assembling the sealing device |
| 07/17/2008 | WO2008086394A1 Coated piston and coating method |
| 07/17/2008 | WO2008086392A1 Piston having improved wear resistance and method of making |
| 07/17/2008 | WO2008083793A1 Piston ring with a multilayer assembly, and a method for the production thereof |
| 07/17/2008 | US20080169612 Oil Ring for Internal Combustion Engine |
| 07/17/2008 | DE3903722C5 Kolben-Kolbenring-Anordnung für einen Verbrennungsmotor Piston and piston ring assembly for an internal combustion engine |
| 07/16/2008 | CN101220190A Fluororubber cloth clamp combination V seal ring and method for producing the same |
| 07/10/2008 | DE10207148B4 Kolbenring Piston ring |
| 07/09/2008 | CN101216056A Large journey low-temperature extension hydraulic cylinder manufacture method |
| 07/08/2008 | US7396018 Oil scraper ring for pistons of internal combustion engines |
| 07/02/2008 | CN201081013Y Rotating seal piece |
| 07/02/2008 | CN201080934Y Air-actuated linear driving apparatus |
| 07/02/2008 | CN101210318A Method for coating silicon nitride film layer on piston ring surface |
| 06/25/2008 | EP1936245A1 Piston with oil collector ring |
| 06/25/2008 | EP1936244A1 Piston of an internal combustion engine equipped with a single-piece sealing system |
| 06/25/2008 | CN201078471Y Composite O-shaped ring |
| 06/25/2008 | CN101208461A Piston ring having hard multi-layer coating |
| 06/25/2008 | CN101205849A Piston with oil collector ring |
| 06/19/2008 | WO2007081640A3 Seal cartridge control valve |
| 06/19/2008 | DE19911962B4 Kolbenring und eine Kombination von Verdichtungsringen Piston ring and a combination of compression rings |
| 06/12/2008 | WO2008068613A1 Piston ring for internal combustion engines |
| 06/12/2008 | WO2007147532A3 Piston ring with chromium nitride coating for internal combustion engines |
| 06/11/2008 | EP1929146A1 Method for producing a piston for an internal combustion engine and the thus produced piston |
| 06/06/2008 | CA2611729A1 High pressure sealing apparatus |
| 06/05/2008 | WO2007115176A3 Methods and apparatus for operating an internal combustion engine |
| 06/04/2008 | EP1927794A1 Combined oil ring |
| 06/04/2008 | CN101191556A Combined oil ring |
| 05/29/2008 | WO2008062863A1 Piston ring |
| 05/29/2008 | US20080122185 Combined oil ring |
| 05/28/2008 | EP1322794B1 Thermally applied coating for piston rings, consisting of mechanically alloyed powders |
| 05/28/2008 | CN201065934Y Drum-shape sealing ring |
| 05/14/2008 | EP1920175A1 Method for manufacturing a piston ring for internal combustion engines, and a piston ring of this type |
| 05/14/2008 | EP1157228B1 Connecting rod with profiled bore for increased load capability |
| 05/14/2008 | CN100387873C Single seat shaped valve device |
| 05/09/2008 | CA2567670A1 Autoclavable piston guide ring |
| 05/08/2008 | DE102007007962B3 Piston ring has base body with bearing surface, provided with compartmentation, which is provided with wear resistant coating, where partial physical vapor deposition covering layer is applied on bearing surface |
| 05/01/2008 | US20080098886 Piston assembly and method of manufacturing piston assembly |
| 04/30/2008 | CN101169188A Silicon carbide ceramic seal ring |
| 04/30/2008 | CN100385033C Thermal spraying of machine part |
| 04/24/2008 | WO2008047454A1 Reciprocating engine |
| 04/24/2008 | US20080095939 plurality of layers applied layer by layer to the peripheral surface by applying, using PVD, metal adhesive layer based on Cr to peripheral surface without adding nitrogen to process gas; Nitrogen is added while increasing the partial pressure forming a CrN gradient layer on the adhesive layer |
| 04/24/2008 | DE102006045993A1 Durchbiegungssteuerbare Walze Controlled deflection roll |
| 04/23/2008 | CN201050596Y Zirconium plating nitride piston ring |
| 04/23/2008 | CN101166897A Reciprocating engine |
| 04/16/2008 | EP1910718A2 Sealing device for internal combustion engine piston |
| 04/16/2008 | EP1910717A1 Two-part oil scraper ring for internal combustion engines |
| 04/16/2008 | EP1910716A1 Multi-part oil scraper ring for internal combustion engines |
| 04/10/2008 | WO2008040695A2 Piston ring for internal combustion engines |
| 04/10/2008 | WO2008040694A2 Piston ring for internal combustion engines |
| 04/09/2008 | CN101158400A Oval-shaped cast iron piston ring processing technology |
| 04/09/2008 | CN100380023C Oil ring of internal combustion engine |
| 04/09/2008 | CN100379947C Structure for connecting or space sealing members with different thermal expansion coefficients |