| Patents for F16J 9 - Piston-rings, seats therefor; Ring sealings of similar construction in general (4,592) |
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| 10/19/1993 | US5253877 Piston ring having tapered outwardly extending wiper |
| 10/13/1993 | CN2143694Y Butting type fully closed mechanic ring |
| 10/12/1993 | US5251915 Piston and ring assembly |
| 09/09/1993 | DE4210342A1 Multi-part sealing ring for internal IC engine - has enlarged ring gap between two piston rings to hold torsion device. |
| 09/08/1993 | EP0559312A1 Improved sealing ring for gas turbine engines |
| 09/01/1993 | CN1075783A Cylinder sealing method by two rings in one groove |
| 08/27/1993 | CA2087777A1 Heat cured elastomer compositions based on a vinyl functional resin, a single vinyl chain-stopped polymer, and vinyl-on-chain polymers |
| 08/24/1993 | US5238255 Oil ring assembly |
| 08/19/1993 | DE4203384A1 Two=part piston esp. for IC engine - has elastically deformable piston ring between piston base and skirt |
| 07/22/1993 | WO1993014325A1 Piston apparatus for use in web pression components in papermaking machinery |
| 07/08/1993 | WO1993013342A1 A method for producing a packing arrangement for a hydraulically operated apparatus and a packing arrangement |
| 07/08/1993 | DE4200035A1 Dichtungsanordnung Seal assembly |
| 06/29/1993 | US5222429 Piston assembly for a hydraulic cylinder |
| 06/23/1993 | EP0341285B1 Process and device improving the sliding of alternating pistons of thermal engines |
| 06/23/1993 | CN2136906Y Full-sealing piston ring |
| 06/22/1993 | CA1319376C Lock-step duo step sealing ring |
| 06/16/1993 | EP0424372B1 A combination seal for sealing between two machine parts |
| 06/09/1993 | EP0545094A1 Piston ring |
| 06/09/1993 | CN2135691Y Piston sealing device |
| 06/09/1993 | CN2135690Y Double-layer complementation piston ring |
| 06/02/1993 | EP0544459A1 Piston ring assembly |
| 05/26/1993 | EP0543515A1 Three-piece oil control ring assembly |
| 05/18/1993 | US5211102 Knock pin arrangement for piston ring |
| 05/12/1993 | EP0541482A1 Piston compressor for an oilfree gas compression |
| 04/27/1993 | CA1317056C Thermosetting resin composition |
| 04/20/1993 | US5203294 Horizontal cylinder arrangement for an internal combustion engine |
| 04/06/1993 | US5199722 Seal assembly for stirling engine |
| 03/30/1993 | US5197746 Substantially zero leakage path sealing assembly with expander void |
| 03/25/1993 | DE4131386A1 Spirally shaped piston ring - extends at least over two windings in which there are varying cross-sections, with winding facing piston base having L-shaped cross-section |
| 03/24/1993 | EP0533128A1 Piston ring made of a titanium alloy and process for production thereof |
| 03/23/1993 | US5195758 Three-piece oil control ring assembly |
| 03/16/1993 | US5193821 Substantially zero leakage path sealing assembly with zero degree bias angle |
| 03/16/1993 | US5193820 Three-piece type oil ring assembly |
| 02/23/1993 | CA1313809C Cylinder-piston unit for displacing a roll at right angles to its longitudinal axis |
| 01/16/1993 | CA2047040A1 Ion beam milling |
| 01/13/1993 | EP0522002A1 Piston and piston sealing ring assemblies |
| 01/07/1993 | DE4121362A1 Sealing ring for piston inside IC engine cylinder - has axial groove parallel and concentric with ring circumference |
| 12/15/1992 | CA2044647A1 Seal cartridge assembly |
| 12/08/1992 | US5169162 Piston ring having a function which is for facilitating supply of lubricating oil into an annular groove of a piston |
| 12/03/1992 | DE4117212A1 Piston ring for IC engine - is keystone-shaped, with ring flank angles of different sizes |
| 12/02/1992 | EP0516500A1 Compression ring for a piston machine |
| 11/25/1992 | CN2122976U Gapless piston-ring |
| 11/24/1992 | US5165367 Cylinder liners |
| 11/12/1992 | WO1992019893A1 Sealing device |
| 11/11/1992 | CN2121575U Splitless energy-saving durable piston ring |
| 11/05/1992 | DE4140833A1 Seal for concentric moving machine parts - has radially inner ring of pref. PTFE or polyurethane prestressed by outer rubber member, and groove in outer part to distort ring |
| 11/04/1992 | EP0416046B1 Piston rings |
| 10/27/1992 | US5158052 Aluminum alloy piston |
| 10/20/1992 | US5156410 Combination seal for sealing between two machine parts |
| 10/14/1992 | EP0508830A2 Cryogenic refrigerator |
| 10/13/1992 | US5154433 Piston ring |
| 10/07/1992 | EP0507636A1 Combined oil ring |
| 10/07/1992 | CN1065129A Gapless piston ring with oblique plane shiplaped ring end |
| 10/07/1992 | CN1018568B Piston ring having function which is for facilitating supply of lubricating oil into annular groove of piston |
| 09/16/1992 | CN1064526A Method for making piston with composite material inlaid ring of ring slot |
| 09/16/1992 | CN1018286B Piston ring |
| 09/16/1992 | CN1018241B Method for manufacturing piston rings |
| 09/15/1992 | US5147094 Substantially zero leakage path sealing assembly with insulating member |
| 09/15/1992 | US5146883 Piston and connecting rod assembly |
| 09/15/1992 | US5146838 Piston apparatus for use in web pressing components in papermaking machinery |
| 08/12/1992 | EP0498479A1 Pistons |
| 08/06/1992 | DE4102306A1 Ovaler kolbenring Oval piston ring |
| 08/05/1992 | EP0258330B1 Piston engine |
| 07/28/1992 | US5133564 Piston ring assembly for stirling engine |
| 07/28/1992 | US5133563 Two ring piston with lower tapered L-shaped ring |
| 07/22/1992 | EP0495129A1 Reciprocating engine |
| 07/15/1992 | EP0494465A1 Cylinder liners |
| 07/14/1992 | US5129661 Steel oil ring assembly |
| 06/09/1992 | US5119777 Light alloy piston |
| 06/03/1992 | EP0305504B1 High pressure reciprocator components |
| 06/02/1992 | US5117742 Hermetic sealing |
| 05/20/1992 | EP0486320A1 Method of manufacturing a side rail of combined oil ring |
| 05/20/1992 | CN2104978U Long-term sealing and energy-saving piston ring |
| 04/29/1992 | CN1060701A Piston ring |
| 04/22/1992 | CN2102406U Combined high sealed longlife piston ring |
| 04/14/1992 | US5104132 Piston ring having nitriding layer and composite ni-b plating layer |
| 03/11/1992 | EP0474332A1 A piston with a cooling cavity adjacent to piston-ring grooves |
| 03/11/1992 | CN2098596U Sealing device for open clearence of piston ring |
| 03/10/1992 | US5094149 Pistons having a component incorporated therein |
| 03/05/1992 | WO1992001882A3 Annular support for a seal for a tilt piston |
| 02/20/1992 | WO1992002722A1 Reciprocating engine |
| 02/20/1992 | DE4025869A1 Piston ring for IC engine - has sloping lower ring surface |
| 02/20/1992 | DE4025868A1 IC engine compression piston ring - has recess in joint area only and remainder of ring is plain |
| 02/19/1992 | CN2096672U Piston ring without break |
| 02/18/1992 | US5088743 Combined oil ring assembly |
| 02/11/1992 | US5087055 Steel oil ring assembly |
| 02/04/1992 | US5085185 Powder-lubricant piston ring for diesel engines |
| 01/28/1992 | US5083536 Compression piston ring groove for an internal combustion engine |
| 01/28/1992 | US5083499 Impact motor with improved sealing of a drive piston |
| 01/21/1992 | US5082295 Piston or rod seal |
| 01/17/1992 | WO1992001882A2 Annular support for a seal for a tilt piston |
| 01/07/1992 | US5078175 Valve |
| 01/02/1992 | EP0463146A1 Piston ring device for piston reciprocating machines, mainly for internal combustion engines |
| 01/02/1992 | DE4019940A1 Trunk piston for four-stroke IC engine - has two non-incorporates two non-turnable piston rings |
| 12/31/1991 | US5076150 Piston assembly with wear resistant piston ring lands |
| 12/27/1991 | EP0462927A1 Piston compressor for an oilfree gas compression |
| 12/17/1991 | US5072653 Piston for a reciprocating machine including a split piston ring |
| 12/10/1991 | US5071142 Bi-directional substantially zero leakage path sealing assembly |
| 12/04/1991 | EP0459546A1 Piston-connecting rod arrangement |
| 12/03/1991 | US5068963 Piston rings |