| Patents for F04B 35 - Piston pumpsspecially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for (9,373) |
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| 02/03/1993 | CN1068630A Air compressor for vehicle |
| 01/27/1993 | EP0524552A1 Hermetic motor-compressor unit with a restraining member for the lower part of the drive-shaft |
| 01/26/1993 | US5181840 Engine compressor with a perfected ventilating device |
| 01/19/1993 | US5179921 Integrated engine and compressor device |
| 01/07/1993 | EP0521540A1 Piston rocket |
| 12/16/1992 | CN2125024U High pressure gas or liquid pump |
| 12/08/1992 | US5169295 Method and apparatus for compressing gases with a liquid system |
| 12/02/1992 | CN2123621U Miniature magnetic vacuum-pump |
| 12/01/1992 | US5167124 Compression-evaporation cooling system having standing wave compressor |
| 11/24/1992 | US5166563 Magnetically actuated linear displacement compressor |
| 11/19/1992 | EP0512983A1 Airflow control system pump and housing. |
| 11/17/1992 | US5163818 Automatic constant air flow rate pump unit for sampling air |
| 11/04/1992 | CN2120895U Adjustable gas reciprocating pump |
| 11/04/1992 | CN2120894U Electromagnet reciprocating compressor |
| 10/28/1992 | EP0510360A1 Suction device to create a vacuum in containers |
| 10/27/1992 | US5157922 Device for generating utilizable energy from potential energy |
| 10/21/1992 | EP0509660A1 Free piston-type compressor |
| 10/21/1992 | CN2119514U Electricity-saving magnetic compressor |
| 10/14/1992 | CN2118836U Adjustable vacuum pump |
| 10/14/1992 | CN2118835U Adjustable air pump |
| 10/14/1992 | CN2118831U Inner conductive differencial compressor |
| 10/07/1992 | CN2118178U Single step dual cylinder hydraulic air pump |
| 09/29/1992 | US5151015 Compression device, particularly for the pressure filling of a container |
| 09/08/1992 | CA1307313C Linear motor compressor with stationary piston |
| 09/02/1992 | EP0500992A1 Cryogenic refrigerator |
| 09/02/1992 | CN2114713U Portable inflator |
| 08/19/1992 | EP0499367A2 Electromagnetic reciprocating pump |
| 08/18/1992 | CA1306385C Gas actuated proportioning pump |
| 08/12/1992 | CN1017822B Sealed air-compressor with spacer layer |
| 07/29/1992 | CN2111383U Miniature inflating machine |
| 07/29/1992 | CN1063145A Power generation by using compressed air and water flow |
| 07/15/1992 | EP0494653A1 Low cost linear actuator |
| 07/07/1992 | US5127808 Portable air pump |
| 07/07/1992 | CA1304729C Suction gas flow system facilitating stator winding cooling in an electrically driven compressor |
| 06/17/1992 | DE4039933A1 Diesel electric drive module for tunnelling machinery - has pump driving electric motor, coupled to diesel engine by freewheel clutch |
| 06/16/1992 | CA1303419C2 Submersible pump system |
| 05/27/1992 | CN2105572U Electromagnetic liner driving high-pressure compression engine |
| 05/26/1992 | CA1301724C Stationary reciprocating compressor for compressing natural gas |
| 05/19/1992 | US5113662 Cryogenic refrigerator |
| 05/14/1992 | DE4035866A1 Combination of pump-compressor with moving component as moving coil motor - including first and second magnetic fields which produce first and second magnetic fluxes |
| 05/06/1992 | EP0483447A2 Pulse width modulated motor control system |
| 04/29/1992 | EP0340214B1 Bounce chambers for multi-cylinder linear engine compressors |
| 04/23/1992 | DE4032755A1 Oxygen-hydrogen combustion driven air pump - with self-contained water electrolysis |
| 04/21/1992 | US5106276 Electrohydraulic method and apparatus |
| 04/21/1992 | US5106268 Outlet pressure control system for electromagnetic reciprocating pump |
| 04/21/1992 | US5106267 Outlet pressure control system for electromagnetic reciprocating pump |
| 04/14/1992 | US5104299 Electromagnetic reciprocating pump |
| 04/14/1992 | CA1298737C Pressure actuated movable head for a resonant reciprocating compressor balance chamber |
| 04/08/1992 | EP0479443A1 Compressors for refrigeration apparatus |
| 04/07/1992 | US5102306 AC/DC air pump |
| 04/02/1992 | WO1992005366A1 Installation for generating utilizable energy from potential energy |
| 03/31/1992 | US5100304 Solenoid-operated reciprocating pump |
| 03/25/1992 | EP0476599A1 Process for disposal of liquid residual products mixed with oil, and corresponding vehicle |
| 03/20/1992 | EP0512983A4 Airflow control system pump and housing. |
| 03/05/1992 | DE4027564A1 Shaft for electric motor - has cavity formed by hole through its length, and filled with damping material |
| 03/03/1992 | US5092750 Device for the compression and storage of air |
| 03/03/1992 | US5092743 Pneumatically controlled pump |
| 02/26/1992 | CN2097293U Line-frequency wave-dividing type energy-saving compressor |
| 02/18/1992 | US5088284 Compressor integral with Stirling engine |
| 02/12/1992 | CN1015485B Sealed compressor |
| 02/05/1992 | CN1058455A Sealed compressor driven by electric-motor |
| 02/04/1992 | CA1295304C Motor-compressor |
| 12/18/1991 | EP0461943A2 Compression device, especially for filling a tank under pressure |
| 12/04/1991 | CN2089989U Miniature vacuum pump without oil |
| 11/26/1991 | CA1292364C Structure for motor-compressor units used with refrigerant fluids |
| 10/08/1991 | US5055011 Electromagnetic type reciprocating pump |
| 10/01/1991 | US5053655 Motor-compressor unit |
| 10/01/1991 | US5052894 Portable compressed air supply with remote control |
| 09/24/1991 | US5051068 Compressors for vehicle tires |
| 09/18/1991 | CN2084991U Disc driving set |
| 09/11/1991 | CN2084523U 微型空气泵 Miniature air pump |
| 08/28/1991 | CN2083646U Air volume adjustable pump |
| 08/27/1991 | CA1287997C Electro-magnet actuated fuel piston pump |
| 08/14/1991 | DE4102710A1 Illumination device for optical appts. - produces light beam with rectangular cross=section, using patterned disc to break up incident beam AB DE4102507A The illumination device is for an optical appts. The device produces a beam of rectangular cross-section and has a spherical auxiliary mirror (1). There is a first collector disc (3), a refracting disc (4) and a second collecting disc (5). The refracting disc (4) is transparent to the visible spectrum and has a flat surface on the light incident side (8). The light exit side (7) is formed with several flat surfaces (7a,7b,7c) of rectangular shape. The surfaces (7a) are parallel to the surface (8) whilst all the other surfaces are inclined to the surface (7a) at the same angle. The refractory disc (4) is so positioned that its light incident surface (8) is at right angles to the optical axis (9) of the light source (L). USE - Illumination of optical appts. AN 91246752 TI Solenoid-driven pump - has piston-mounted permanent magnets beyond which ends of stator core on rim of coil do not protrude in axial direction |
| 08/13/1991 | US5038583 Gas expansion motor equipped air conditioning/refrigeration system |
| 08/08/1991 | WO1991011617A1 Airflow control system pump and housing |
| 07/30/1991 | CA1286915C Low pressure metering fluid pump |
| 07/23/1991 | US5033941 Method for assembling rotors without fixtures |
| 07/17/1991 | EP0436999A1 Motor-compressor unit |
| 06/27/1991 | WO1991009259A1 Gas expansion motor air conditioning system |
| 06/26/1991 | EP0434478A1 Device for the compression and storage of air |
| 06/19/1991 | EP0432230A1 Use of a device for power supply |
| 06/19/1991 | CA2030982A1 Air compressing and accumulating device |
| 06/04/1991 | US5020977 Refrigerant |
| 05/29/1991 | EP0428654A1 Vacuum collecting vessel for flushing water |
| 05/28/1991 | US5018950 Electrohydraulic method and apparatus |
| 05/22/1991 | EP0428212A1 Motor-compressor unit |
| 05/21/1991 | US5017854 Variable duty cycle pulse width modulated motor control system |
| 05/21/1991 | US5016597 Crankshaft driven compressor for supplying air to a fuel injection mechanism |
| 05/15/1991 | EP0378656A4 Pressure actuated movable head for a resonant reciprocating compressor balance chamber |
| 05/15/1991 | CN2077043U Miniature air compressor |
| 04/17/1991 | CN2075262U Mini-fan made of piezoceramics |
| 04/10/1991 | EP0421940A1 Gas driven pump |
| 04/02/1991 | US5004404 Variable positive fluid displacement apparatus with movable chambers |
| 03/20/1991 | CN2073488U 压缩机 Compressor |
| 02/14/1991 | DE3926259A1 Pump supplying additional air to IC engine exhaust system - has pump which operates on air intake pulsations, fitted in air intake chamber, which feeds cylinder inlet pipes |
| 02/14/1991 | DE3925875A1 Transportable compressor unit with removable air tank - has compressor, tank and control elements mounted in open carrying frame serving as air conduit |
| 02/13/1991 | CN2071261U 活塞泵 Piston pump |
| 02/12/1991 | US4992685 Reciprocating motor-compressor with W-shaped core |
| 01/23/1991 | CN2069935U Air compressor lubricated without oil for automobiles |