| Patents for F16J 9 - Piston-rings, seats therefor; Ring sealings of similar construction in general (4,592) |
|---|
| 12/14/1988 | EP0294931A1 Self-lubricating thermosetting resin composition |
| 12/13/1988 | CA1246404A1 Iron piston having selectively hardened ring groove |
| 12/01/1988 | DE3717297A1 Piston ring made exclusively of cast iron with chilled cast iron in just one area of its outer circumferential surface |
| 11/24/1988 | DE3814769A1 Kolbenringanordnung Piston ring assembly |
| 11/16/1988 | CN87205804U Autocompensation type multifunction piston and assemblies of piston ring |
| 11/10/1988 | DE3712731A1 Slotted torsion piston ring |
| 10/27/1988 | DE3711631A1 Displacement sensor |
| 10/25/1988 | CA1243505A1 Inserts for diesel engine pistons made from aluminum-silicon alloys having improved resistance to high head and improved workability |
| 10/11/1988 | US4776261 Reciprocating engine piston seal |
| 10/05/1988 | CN85108421B Method of manufacturing piston ring |
| 10/04/1988 | US4774917 Piston and piston ring for an internal combustion engine |
| 09/28/1988 | EP0284118A2 Piston and piston ring |
| 09/27/1988 | US4774393 Slide contacting member and production method therefor |
| 09/22/1988 | WO1988007129A1 High pressure reciprocator components |
| 09/14/1988 | EP0281755A1 Applicator cartridge with a dispensing piston |
| 09/13/1988 | US4770085 Hydraulic jack |
| 09/07/1988 | CN87215206U V-sealing ring having fine sealing function |
| 08/30/1988 | US4767123 Dual ring piston-ring system with spring ring bias means |
| 08/30/1988 | CA1241205A1 Sealed telescopic joint and method of assembly |
| 08/10/1988 | CN87216568U Compound sealed piston |
| 08/09/1988 | US4762329 Spacer expander for piston rings |
| 08/09/1988 | US4762052 Piston |
| 08/03/1988 | CN87213627U Full-sealed piston ring |
| 08/02/1988 | US4761340 Ceramics sliding member |
| 07/27/1988 | EP0276084A2 Gas cylinder piston seal |
| 07/26/1988 | US4759555 Split ring seal with slip joint |
| 07/26/1988 | US4759266 Multiple part oil-control ring for piston |
| 07/19/1988 | US4758005 Piston rings with a gap seal |
| 07/12/1988 | US4756841 Friction-reducing coating compositions and coated machine part |
| 07/12/1988 | CA1239062A1 Piston and piston ring assemblies |
| 06/29/1988 | EP0272381A1 Sealing ring for relatively rotatable parts |
| 06/14/1988 | US4750409 Apparatus for compressing a gas |
| 06/02/1988 | WO1988004003A1 Sealing ring arrangement between relatively rotating mechanical parts |
| 05/31/1988 | US4747602 Synthetic resin sealing ring assembly with metal film layer |
| 05/03/1988 | US4741543 Piston scraper ring |
| 04/28/1988 | DE3634708A1 Machine component exposed to sliding friction, such as, in particular, a piston ring |
| 04/12/1988 | US4736586 Seal mechanism for a Stirling engine |
| 03/30/1988 | EP0165417B1 Piston ring |
| 03/24/1988 | DE3631240A1 Intermediate spring |
| 03/15/1988 | US4730832 Sealed telescopic joint and method of assembly |
| 03/09/1988 | EP0258330A1 Piston engine. |
| 03/02/1988 | CN87105340A Method for manufacturing piston rings |
| 02/03/1988 | CN87209424U Polytetrafluoroethylene sealing ring |
| 02/02/1988 | US4722535 Oil ring structure having reduced rigidity |
| 02/02/1988 | US4722507 Piston sealing ring apparatus |
| 01/20/1988 | EP0253069A1 Tribologically optimized piston ring |
| 01/14/1988 | WO1988000289A1 Piston rings |
| 01/14/1988 | DE3638533C1 Cylindrical running surfaces |
| 01/14/1988 | DE3623360A1 Device with adjacent surfaces, between which high pressures and/or high friction loads occur |
| 01/13/1988 | EP0252728A2 Metallic slide members to be used with ceramic slide members and sliding assemblies using the same |
| 01/11/1988 | EP0167523A4 Composite pistons and method of manufacturing thereof. |
| 12/23/1987 | DE3719072A1 Sealing-ring arrangement |
| 12/22/1987 | US4714008 Piston for internal combustion engines and the like |
| 12/22/1987 | US4713867 Piston rings with a gap seal |
| 11/17/1987 | US4706971 Seal ring for piston rods with partings |
| 11/12/1987 | DE3714400A1 Piston for internal combustion engines |
| 10/15/1987 | DE3612456A1 Tribologically optimised piston ring |
| 10/15/1987 | DE3612455A1 Piston for improved sealing function of the piston rings |
| 10/15/1987 | DE3612454A1 Piston rings |
| 10/07/1987 | EP0240308A2 Piston for internal combustion engine and method for reinforcing the same |
| 10/06/1987 | US4697992 Piston ring for a piston in a refrigerant compressor |
| 09/22/1987 | US4695064 Piston ring assembly and expander |
| 09/16/1987 | EP0237377A1 Oil-scraping ring and structure of pistons sliding in cylinders, such as an internal-combustion engine comprising such rings |
| 08/27/1987 | WO1987005076A1 Piston engine |
| 08/27/1987 | DE3609578A1 Seal in a gas turbine |
| 08/25/1987 | US4688808 Iron-bases steel |
| 08/13/1987 | DE3606269C1 Lubrication for a piston of a reciprocating piston internal combustion engine |
| 08/12/1987 | EP0231673A1 Composite sealing arrangement |
| 08/12/1987 | CN86205907U Sealing cup leather |
| 07/22/1987 | EP0229584A2 Slip joint for formed sheet metal seals |
| 07/21/1987 | US4681817 Piston ring |
| 07/21/1987 | US4681327 Compound seal with pressure equalization aperture |
| 07/21/1987 | US4681326 Gas lubricated piston ring assembly |
| 07/08/1987 | CN86204257U Fully sealed piston ring set |
| 07/01/1987 | CN86108391A Sliding joint closures of sealing elements made up of metal sheet |
| 06/30/1987 | US4676143 Piston seal device for reciprocating compressor |
| 06/24/1987 | CN85108843A 单槽活塞环 Single Piston |
| 06/17/1987 | CN86204629U Super pressure sealing structure with trapezium grooves and o-rings |
| 06/16/1987 | US4672931 Lubrication system with oil recovery for a two-stroke engine piston with pump-sump for scavenging |
| 06/10/1987 | CN86200905U Cup leather type sealing ring of pneumatic valve piston |
| 06/02/1987 | US4669736 Stirling engine with improved sealing piston ring assembly |
| 06/02/1987 | US4669369 Piston and piston ring assemblies |
| 05/27/1987 | EP0222864A1 Multiple part oil-control ring for piston. |
| 04/29/1987 | EP0219573A2 Piston ring, in particular an oil control piston ring |
| 04/28/1987 | US4660383 Clean air blow-by system for diesel engine |
| 04/22/1987 | EP0218607A1 Dual spring expander for oil control piston rings |
| 04/21/1987 | US4659093 Three-piece oil-ring with an inward protrusion |
| 04/15/1987 | EP0218274A1 Piston ring for the piston of shock absorber devices |
| 04/14/1987 | USRE32395 Piston and piston rings set |
| 04/08/1987 | EP0217039A2 Sealing device on a piston-cylinder arrangement, particularly to seal the valve cone on valves with pressure compensation |
| 04/07/1987 | US4655983 Formed form upper and lower annular segments one of which is inverted |
| 04/02/1987 | DE3538978C1 Piston-ring arrangement for trunk pistons |
| 03/24/1987 | US4651628 Piston-cylinder arrangement of polygonal cross section |
| 03/24/1987 | US4651395 Manufacture of piston rings |
| 03/18/1987 | EP0214321A1 Sealing arrangement for a refrigerator displacement compressor |
| 03/11/1987 | CN85107198A Standard type separable air actuator with single dounble-acting pole |
| 03/10/1987 | CA1218908A1 Piston for reciprocating internal combustion engine |
| 03/04/1987 | EP0212861A1 Seal mechanism for a stirling engine |
| 02/25/1987 | CN86205576U Self-seal extensimeter with multistage, flashing and subtract pressure |
| 02/17/1987 | US4643079 Iron piston having selectively hardened ring groove |