| Patents for F16J 1 - Pistons; Trunk pistons; Plungers (5,199) |
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| 09/08/1992 | US5144923 Method for the manufacture of a two piece piston and piston |
| 09/02/1992 | CN1018059B Method for manufacturing piston |
| 08/26/1992 | CN2114067U Single-piece piston of displacement pump |
| 08/12/1992 | EP0498479A1 Pistons |
| 08/11/1992 | US5137431 Lubricating mechanism and method for a piston assembly of a slant plate type compressor |
| 08/08/1992 | WO1992013673A1 Apparatus for eliminating backlash in standard geared drilling head |
| 08/08/1992 | CA2079457A1 Apparatus for eliminating backlash in standard geared drilling head |
| 08/05/1992 | EP0258330B1 Piston engine |
| 07/23/1992 | DE4100854A1 Ceramic piston for piston cylinder unit - has expansion and tension rings holding top and tail of piston together even at high temperatures |
| 07/22/1992 | EP0495129A1 Reciprocating engine |
| 07/18/1992 | CA2059599A1 Light weight piston |
| 07/09/1992 | WO1992011453A1 Ball-and-socket joint connection |
| 07/09/1992 | WO1992011128A1 Method of manufacturing a piston and an actuator having a piston |
| 07/09/1992 | WO1992011104A1 Method and apparatus for casting articles |
| 07/02/1992 | DE4040611A1 Jet piston cooling for IC engines - has air accumulation chamber in piston base |
| 06/23/1992 | US5123386 Internal combustion engine and its piston |
| 06/16/1992 | US5121722 Combustion chamber defining piston for an internal combustion engine |
| 06/09/1992 | US5119777 Light alloy piston |
| 06/03/1992 | EP0305504B1 High pressure reciprocator components |
| 06/02/1992 | US5117742 Hermetic sealing |
| 05/26/1992 | US5115725 Piston and connecting rod assembly |
| 05/20/1992 | EP0486402A1 Composite piston and method of manufacturing |
| 05/20/1992 | CN2104977U Heat expansion drainage valve |
| 05/19/1992 | US5114262 Hollow ceramic piston pin |
| 05/14/1992 | WO1992007662A1 Device for the intermittent application of a fluid to a substrate |
| 05/12/1992 | US5112145 Piston and bearing assemblies |
| 05/12/1992 | US5111737 Wrist pin retainer for blind assembly |
| 05/07/1992 | DE4134530A1 Piston head mfg. process - involves using compressed elastic inserts for cooling chamber to reduce heat at combustion chamber edges |
| 05/07/1992 | DE4134529A1 Piston head with closed cooling chamber - has one part with machined chamber that is closed off when second part is welded in position |
| 05/07/1992 | DE4134528A1 Piston head with closed cooling chamber - is made from separate parts having recesses which form chamber when parts are welded together |
| 04/30/1992 | DE4033930A1 Vorrichtung zum intermittierenden auftragen eines fluids auf ein substrat An apparatus for intermittently applying a fluid to a substrate |
| 04/22/1992 | EP0481473A2 Piston, method of making the piston and piston and cylinder unit comprising the piston, and a door closer and method of making same |
| 04/07/1992 | US5101556 Method of manufacturing a piston |
| 04/02/1992 | WO1992005355A1 Light-alloy plunger piston for spark-ignition engines |
| 04/02/1992 | DE4132295A1 Two=part piston for IC engine - has head comprising upper part and nave bulge parts |
| 04/02/1992 | DE4122089C1 Piston for IC engine - is made of graphite and has lands on skirt separated by wide shallow grooves |
| 03/31/1992 | US5099750 Piston mechanism for a piston unit |
| 03/26/1992 | DE4110306A1 Tauchkolben aus leichtmetall fuer ottomotoren Plunger from alloy for gasoline engines |
| 03/10/1992 | US5094149 Pistons having a component incorporated therein |
| 03/03/1992 | US5092290 Engine piston assembly with planar pin mounting surface |
| 03/03/1992 | US5092224 Conical rod piston |
| 02/26/1992 | CN2097323U Inflator piston |
| 02/25/1992 | CA1296301C Low mass piston for aerosol can |
| 02/20/1992 | WO1992002722A1 Reciprocating engine |
| 02/05/1992 | EP0469666A1 Pistons |
| 02/04/1992 | US5085550 Locking nut assembly |
| 02/04/1992 | US5085185 Powder-lubricant piston ring for diesel engines |
| 01/30/1992 | DE4113773A1 Piston with reduced free play for internal combustion engine - has specific areas coated with low friction graphite and polymer dispersion and non-coated areas which are set back compared to coated areas |
| 01/29/1992 | CN2094651U Piston |
| 01/28/1992 | US5083536 Compression piston ring groove for an internal combustion engine |
| 01/23/1992 | WO1992001177A1 Articulated joint between the piston and connecting rod of an internal combustion engine |
| 01/23/1992 | DE4122921A1 Trunk piston for IC engine - has skirt with recesses between areas of largest and smallest ovality |
| 01/23/1992 | DE4032609C1 Vehicle shock-absorber piston and ring - uses broad plastics ring engaging grooves on support on piston |
| 01/23/1992 | DE4022754A1 Trunk piston for IC engine - has skirt with areas of different surface roughness |
| 01/22/1992 | EP0466844A1 Cold-formed piston for hydraulically operated brake. |
| 01/21/1992 | US5081968 Pistons for an internal combustion engine |
| 01/21/1992 | US5081967 Piston with separate head and skirt |
| 01/09/1992 | DE4111368A1 IC engine piston assembly - has upper part connected to separate skirt by gudgeon pin in specially prepared bores |
| 01/09/1992 | DE4021703A1 Gelenkverbindung zwischen kolben und pleuel eines verbrennungsmotors Articulation between pistons and connecting rods of an internal combustion engine |
| 01/08/1992 | EP0465022A2 Pistons |
| 01/02/1992 | EP0463767A1 Pistons for engines or motors |
| 01/02/1992 | DE4019918A1 Axial fastening for gudgeon pin ends - consists of snap ring shaped as U-fitting into hole in piston, with three radial holes in it |
| 01/02/1992 | DE4018344C1 Piston for IC-engine - has central section of piston attached to underside of guide ring |
| 01/01/1992 | CN2091967U Plunger means of inflator |
| 12/31/1991 | US5076226 Internal combustion engine piston |
| 12/31/1991 | US5076225 Piston for an internal combustion engine |
| 12/31/1991 | US5076149 Wrist pin, piston assembly and method for making same |
| 12/27/1991 | EP0462867A1 Hydraulic brake system with proportional valve |
| 12/24/1991 | US5074264 Light alloy piston for internal combustion engines |
| 12/17/1991 | US5072654 Piston and bearing assemblies |
| 12/17/1991 | US5072653 Piston for a reciprocating machine including a split piston ring |
| 12/11/1991 | EP0460901A2 Surfacing a convex substrate |
| 12/11/1991 | CN2090458U 活塞 Piston |
| 12/10/1991 | US5072092 Excimer laser treatment of engine bearing surfaces such as cylinders |
| 12/10/1991 | US5070768 Articulated piston |
| 12/04/1991 | EP0459546A1 Piston-connecting rod arrangement |
| 11/28/1991 | WO1991018189A1 Tappets |
| 11/28/1991 | WO1991014889A3 Piston and piston sealing ring assemblies |
| 11/28/1991 | DE4115766A1 Fastening piston to connecting rod - involves poly with cylindrical head which fits in transverse bore in piston |
| 11/26/1991 | US5067453 Piston of two-cycle engine |
| 11/26/1991 | US5067393 Piston head block for internal combustion engine |
| 11/19/1991 | US5065706 Cooled plunger piston for internal combustion engines |
| 11/19/1991 | US5065508 Two-piece piston and method of manufacturing the same |
| 11/14/1991 | DE4113722A1 Bearing bushes for piston gudgeon pin - are press fit in piston bosses and are positioned in axial direction by stop |
| 11/12/1991 | US5063894 Ceramic fiber, magnesium alloy |
| 11/12/1991 | US5063893 Piston structure for internal combustion engine |
| 11/12/1991 | US5063881 Ceramic engine |
| 11/12/1991 | US5063831 Piston pin bearing |
| 10/31/1991 | DE4112889A1 Piston with passageways for cooling medium - is made in two parts which are welded together |
| 10/31/1991 | DE4112576A1 Piston for diesel engine - is made in two parts which are friction welded together |
| 10/30/1991 | EP0454031A1 Construction of a combustion chamber for an internal combustion engine |
| 10/23/1991 | EP0358701B1 Provision for the combustion chamber surfaces of an internal combustion engine |
| 10/22/1991 | US5058489 Piston structure for internal combustion engine |
| 10/17/1991 | DE4011535A1 Piston for IC engine - has several compression ring below which is oil scraper ring with pressure unloading holes leading from its groove to piston interior |
| 10/09/1991 | EP0451011A1 Piston for internal-combustion engines |
| 10/09/1991 | EP0449848A1 Light plunger piston for internal combustion engines. |
| 10/09/1991 | CN1055220A Sealing elements of stuffing-box for piston rod |
| 10/08/1991 | US5054375 Piston for internal combustion engine |
| 10/03/1991 | WO1991014890A1 Stuffing box seal for piston rods |
| 10/03/1991 | WO1991014889A2 Piston and piston sealing ring assemblies |