| Patents for F02F 5 - Piston rings, e.g. associated with piston crown (2,184) |
|---|
| 02/12/1986 | EP0170763A1 Wear-resistant coating |
| 12/27/1985 | EP0165417A1 Piston ring |
| 12/10/1985 | US4557492 Nitrided piston ring with outer layer on surface |
| 10/22/1985 | US4548416 Oil-ring including two rail rings and an expander-spacer ring which bites into the rail ring |
| 09/17/1985 | US4542111 Spray powder for the manufacture of wear resistant and temperature resistant coatings |
| 08/14/1985 | EP0151516A1 Piston and piston ring assemblies |
| 06/19/1985 | EP0144520A2 Oil-scraping ring for pistons |
| 06/11/1985 | US4522415 Piston ring for an internal combustion engine |
| 06/05/1985 | EP0143665A2 Scraper rings |
| 05/08/1985 | EP0139965A1 Seal ring for piston rods |
| 04/24/1985 | EP0138443A2 Piston rod seal |
| 03/12/1985 | CA1183741A1 Manufacture of piston rings |
| 02/19/1985 | US4500360 Sliding member made of fiber-reinforced metal |
| 01/23/1985 | EP0132042A2 Fully hydrodynamic piston ring and cylinder assembly |
| 01/16/1985 | EP0131382A2 Fully hydrodynamic piston ring and piston assembly with elastomerically conforming geometry and internal cooling |
| 10/09/1984 | US4475739 Piston ring assembly for automotive internal combustion engine |
| 09/25/1984 | US4473232 Oil scraper ring with controlled gap arrangement |
| 09/19/1984 | EP0118772A1 Piston for reciprocating internal combustion engine |
| 09/11/1984 | US4470388 Fully hydrodynamic piston ring and cylinder assembly |
| 09/11/1984 | US4470375 Fully hydrodynamic piston ring and piston assembly with elastomerically conforming geometry and internal cooling |
| 08/14/1984 | US4465515 Piston ring for internal combustion engine |
| 08/01/1984 | EP0114655A1 Piston ring for an internal-combustion engine |
| 08/01/1984 | EP0114232A1 Flame spray powder for producing wear-resistant coatings |
| 07/04/1984 | EP0112453A1 Spraying material, especially for the production of wear and temperature resistant coatings, especially for machine parts of combustion engines |
| 05/22/1984 | US4449721 Split piston ring having stepped ends |
| 12/13/1983 | US4420543 With ferrochrome and self-fluxing alloy |
| 11/08/1983 | US4414284 From sintered metal alloy powder |
| 10/04/1983 | US4407515 Combined oil ring |
| 05/24/1983 | US4384554 Piston ring with expander for internal combustion engine |
| 05/17/1983 | US4383509 Piston for internal combustion engines |
| 03/01/1983 | CA1142196A1 Piston ring and method of making same |
| 12/07/1982 | US4362135 Piston ring of internal combustion engine |
| 12/07/1982 | CA1137134A1 Piston ring |
| 10/28/1982 | WO1982003678A1 Split ring seal for cryogenic refrigerator |
| 10/26/1982 | US4355519 Split ring seal for cryogenic refrigerator |
| 09/21/1982 | CA1132157A1 Piston ring of internal combustion engine |
| 08/31/1982 | US4346685 Internal combustion engine with gas sealing device |
| 08/17/1982 | US4344634 Compression rings |
| 08/04/1982 | EP0056905A1 Method of and apparatus for detecting a piston ring in a piston engine |
| 04/06/1982 | US4323257 Piston ring with a Cr-C-Fe inlaid ring in its outer surface, and a method of making it |
| 03/02/1982 | US4317574 Expander for piston ring |
| 02/10/1982 | EP0045352A2 Piston rings for combustion engines |
| 02/02/1982 | US4313368 Reciprocating piston |
| 01/26/1982 | CA1117158A1 Piston ring and method of manufacture |
| 01/19/1982 | US4311525 Sliding member for use in internal combustion engine |
| 12/22/1981 | US4306730 Piston ring for internal combustion engine |
| 11/10/1981 | US4299401 Piston ring and method of making same |
| 05/12/1981 | US4266787 Piston ring |
| 03/17/1981 | US4256318 Piston ring |
| 02/03/1981 | US4248440 Wear resistance and resistance to delamination |
| 01/06/1981 | CA1093111A1 Low friction balanced piston ring |
| 11/04/1980 | CA1088971A1 Piston ring |
| 10/07/1980 | CA1086966A1 Method for increasing the life of silicon carbide grinding wheels |
| 04/15/1980 | US4198065 Piston ring for internal combustion engine |
| 02/06/1980 | EP0007659A1 Plunger for piston engines |
| 01/29/1980 | US4185843 Friction wear experiencing machine part having a coating on its sliding surface |
| 09/19/1979 | EP0004141A1 Diesel engine and piston assembly therefor |
| 07/17/1979 | US4161321 Piston ring and method of manufacture |
| 06/12/1979 | CA1056139A1 Method of making a rolled metal piston ring |
| 05/01/1979 | CA1053720A1 Integral spring piston ring |
| 03/20/1979 | US4145060 Axially and radially clamping spreader ring for an oil scraping piston ring |
| 02/13/1979 | US4139205 Circumferentially resilient piston ring |
| 02/06/1979 | CA1048074A1 Press seal |
| 10/10/1978 | CA1039981A1 Copper base alloy for apex seal material |
| 10/10/1978 | CA1039935A1 Piston ring forming method |
| 09/26/1978 | US4115959 Method for increasing the life of silicon carbide grinding wheels |
| 09/05/1978 | US4111437 Oil control ring spacer-expander with improved slip latch |
| 08/29/1978 | CA1037332A1 Oil cooled piston rings |
| 08/15/1978 | US4106977 With wear-resistant layer for pistons of internal combustion engines |
| 05/23/1978 | US4090720 Expander spring for piston rings |
| 04/25/1978 | US4085490 Method of making a rolled metal piston ring |
| 03/21/1978 | US4079949 Integral spring piston ring |
| 03/21/1978 | US4079720 Relative combination of a cylinder and a seal ring for internal combustion engines |
| 08/09/1977 | US4040637 Low friction balanced piston ring |
| 05/31/1977 | US4026197 Oil cooled piston rings |
| 05/24/1977 | US4024617 Method of applying a refractory coating to metal substrate |
| 01/04/1977 | US4000980 Eutectic alloys, iron, boron, carbon, phosphorous |
| 08/03/1976 | US3973098 Piston ring forming method |
| 06/29/1976 | US3966368 Insulated seal for engines |
| 06/22/1976 | US3964145 Apex seal material |
| 05/11/1976 | US3955823 Oil ring assembly |
| 03/16/1976 | US3944236 Piston ring |
| 01/27/1976 | US3934886 Corrugated radial spacer expander for compound oil scraping rings |
| 01/13/1976 | US3932228 Metal material for sliding surfaces |