| Patents for F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members (9,236) |
|---|
| 05/02/1990 | EP0365563A1 A rotary/reciprocatory motion converter. |
| 05/02/1990 | CN2056704U Animal agriculture water pump |
| 05/02/1990 | CN2056703U Foot submerge pump |
| 05/01/1990 | US4921408 Non-icing quiet air-operated pump |
| 04/25/1990 | EP0364823A1 Device for pneumatically dispensing concrete hydromechanically transported in a dense flow |
| 04/25/1990 | EP0364816A1 Electro-hydraulic motor pump unit |
| 04/25/1990 | CN2056453U Hand-operated water pump |
| 04/25/1990 | CN2056452U Seal type vacuum compressor for pouring water |
| 04/24/1990 | US4919597 Pump apparatus for multiple component fluids |
| 04/24/1990 | CA1268098A1 Control arrangement for controlling a hydraulic drive for driving a piston pump |
| 04/19/1990 | WO1990004104A1 Process and device for correcting the piston stroke in the cylinders of a two-cylinder pump for thick matter |
| 04/19/1990 | DE3834678A1 Verfahren und vorrichtung zur korrektur des kolbenhubs in den zylindern einer zweizylinder-dickstoffpumpe Method and device for correction of the piston stroke in the cylinders of a two-cylinder thick fuel pump |
| 04/18/1990 | EP0364385A2 A spray pump |
| 04/18/1990 | CN2056196U Plunger hydraulic deep-well pump |
| 04/18/1990 | CN1041426A Maintenance free, positive displacement pump |
| 04/18/1990 | CA2000952A1 An apparatus for pneumatically discharging concrete |
| 04/17/1990 | US4917303 Snap-in trigger |
| 04/17/1990 | CA1267810A1 Fuel/oil pump |
| 04/11/1990 | CN1007540B Single-acting gas-operated pump |
| 04/05/1990 | WO1990003226A1 Snap-in trigger |
| 04/03/1990 | US4913809 Concentrating apparatus with reverse osmosis membrane |
| 04/03/1990 | US4913624 Low pulsation displacement pump |
| 03/28/1990 | EP0360204A1 Unit apt to act upon the flow |
| 03/28/1990 | CN2055191U Miniature manual pump |
| 03/27/1990 | US4911314 Stopper for a container such as a bottle, and a pump connectable thereto for extraction of gaseous medium from or pumping in thereof into the container |
| 03/21/1990 | CN2054840U Manpower suction type high-lift porcelain pump |
| 03/21/1990 | CN2054839U Manpower double cork pump |
| 03/21/1990 | CN2054838U Liquid drain suction |
| 03/15/1990 | DE3830304A1 Hydraulic pump |
| 03/13/1990 | US4907949 Variable flow pump |
| 03/07/1990 | CN2054088U Pedal high lift water pump |
| 03/07/1990 | CN2054087U 手压泵 Hand pump |
| 03/01/1990 | DE3908278A1 Retaining and attachment device |
| 02/28/1990 | CN2053685U Portable multifunction oil feeder |
| 02/28/1990 | CN2053683U Manual pump with rubber bulb |
| 02/21/1990 | CN2053255U Hand pump with two-way reciprocating piston |
| 02/20/1990 | US4902207 Energy recovery apparatus |
| 02/13/1990 | US4899913 Hand pump for delivering thick or liquid substances contained in bottles |
| 02/07/1990 | CN2052447U Automobile oiler |
| 02/07/1990 | CN2052446U Pedal water pump |
| 01/31/1990 | EP0353133A1 Reciprocating-piston pump, especially a manually actuated one |
| 01/31/1990 | CN2052064U Diaphragm pump |
| 01/24/1990 | CN2051676U Multifunctional oil pumping device |
| 01/23/1990 | US4895497 Double acting pneumatic driven pump with regulating valve |
| 01/23/1990 | US4895492 Double acting and automatically reversing pressure intensifier |
| 01/17/1990 | CN2051292U Connecting-rod type inflator |
| 01/17/1990 | CN2051291U Pressure-regulating inflator |
| 01/17/1990 | CN1006492B Fluid pressure intensifier |
| 01/08/1990 | EP0261180A4 Anti-contamination flow control in liquids. |
| 12/28/1989 | DE3821321A1 Pressure source for a hydraulic brake system |
| 12/26/1989 | US4889472 Air speed control valve air pressure drive hydraulic fluid pump |
| 12/20/1989 | CN2049690U Pedal high-pressure pump |
| 12/14/1989 | WO1989012166A1 Multichamber pump, valve for such a pump and use of the pump |
| 12/14/1989 | WO1989011038A3 Piston pump for multiphase fluids and applications thereof |
| 12/13/1989 | CN2049277U 液体双吸泵 Liquid double suction pump |
| 12/13/1989 | CN2049276U Hand water-lifting pump |
| 12/13/1989 | CN2049275U Swing type hand pump |
| 12/13/1989 | CN2049274U Totally enclosed water well with hand pump |
| 12/06/1989 | EP0345210A1 Multichambers pump, valve for such a pump and use of it |
| 12/06/1989 | EP0345132A1 Precompression dosing pump with improved priming action |
| 12/06/1989 | CN2048902U Gas cylinder with steel ball for contra-stop |
| 12/05/1989 | US4884405 Valve arrangement for a piston charger driven by exhaust gas pulses |
| 11/29/1989 | CN2048520U Pull type suction pressure well pump |
| 11/29/1989 | CN2048519U Single tube high pressure type pump |
| 11/28/1989 | US4883412 Variable capacity diaphragm pumps |
| 11/22/1989 | CN2048119U Hand-pump in hydraulic starting system |
| 11/22/1989 | CN2048118U Multi-function high pressure poket-inflator with dual piston |
| 11/16/1989 | WO1989011038A2 Piston pump for multiphase fluids and applications thereof |
| 11/16/1989 | WO1989011037A1 Control arangement for two-cylinder pumps for viscous liquids |
| 11/16/1989 | DE3901856A1 Hydraulically driven high-pressure cleaner |
| 11/15/1989 | CN2047732U 手摇液压机 Hand hydraulic press |
| 11/15/1989 | CN2047731U Piston-type general-purpose pump |
| 11/15/1989 | CN2047730U Liquid extractor |
| 11/15/1989 | CN2047729U Hand-press water pump for deep well |
| 11/08/1989 | EP0340477A2 Drive for a lubrication pump |
| 11/08/1989 | EP0340332A1 Device, particularly for a hand pump, for delivering a predetermined quantity of thick or liquid substances contained in bottles |
| 11/08/1989 | CN2047314U 双塞深井手动抽水泵 Double stuffed deep hand pumps |
| 11/08/1989 | CN2047309U Pneumatic variable-capacity type deep well pump |
| 11/02/1989 | EP0340201A1 Hydraulically actuated piston pump |
| 11/02/1989 | EP0340150A1 Rotary compressors |
| 11/02/1989 | EP0339125A1 Hand pump for delivering thick or liquid substances contained in bottles |
| 11/01/1989 | CN2046936U Health-giving inflator |
| 10/31/1989 | US4876946 Flexible hose pump |
| 10/25/1989 | CN2046555U 打气筒 Inflator |
| 10/25/1989 | CN2046554U Manual pump without cup leather for pressure gage |
| 10/18/1989 | EP0337302A2 Hand pump |
| 10/18/1989 | CN2046155U Tilting cylinder block type reinforced air-filling device used also as bicycle hand beam |
| 10/18/1989 | CN2046154U Static-pressure type automatic mechanical water pump |
| 10/17/1989 | US4874296 Compressor attachment for portable drill |
| 10/11/1989 | CN2045786U Single-tube power-saving inflator |
| 10/04/1989 | EP0334994A1 Reciprocating type fluid delivery pump |
| 10/03/1989 | US4871302 Apparatus for removing fluid from the ground and method for same |
| 09/27/1989 | CN2045027U Hand pistonless compressed water pump |
| 09/20/1989 | EP0333264A2 Power converter for driving a hydraulic submerged tool |
| 09/20/1989 | CN2044652U Wing-type water pump |
| 09/20/1989 | CN2044651U Plastic oil suction |
| 09/19/1989 | US4867654 Fluid-driven pump |
| 09/19/1989 | US4867347 Dispenser pump |
| 09/19/1989 | CA1259522A1 Pumping arrangements |
| 09/13/1989 | CN2044292U Double sylinder foot water pump |