| Patents for F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members (9,236) |
|---|
| 01/04/1989 | EP0297751A2 Viscous product dispenser |
| 01/04/1989 | CN2030264U Convenient water draw-off pump |
| 01/04/1989 | CN2030263U Closed two-way lift water pump |
| 12/29/1988 | WO1988010381A1 A rotary/reciprocatory motion converter |
| 12/27/1988 | US4793522 Positive discharge valve for viscous product dispenser |
| 12/27/1988 | US4793153 Energy recovery apparatus |
| 12/20/1988 | US4792291 Viscous damped valve for hydraulic pump |
| 12/15/1988 | WO1988009906A1 Energy recovery apparatus |
| 12/15/1988 | WO1988009876A1 Fluid pressure intensifying system |
| 12/14/1988 | EP0295123A2 Multi-channel linear concentrate pump |
| 12/14/1988 | CN88205561U Liquid-absorbing device |
| 12/13/1988 | US4790732 Driving means of the triple-cylinder plunger pump |
| 12/13/1988 | US4790728 Dual-rigid-hollow-stem actuators in opposite-phase slurry pump drive having variable pumping speed and force |
| 12/13/1988 | US4790236 Floating piston coupling for plunger type pumps |
| 12/13/1988 | CA1246388A1 Double-diaphragm pumps |
| 12/06/1988 | US4789313 Apparatus for and method of pumping output fluids such as abrasive liquids |
| 12/06/1988 | US4789312 Lubrication pump with improved priming handle assembly |
| 12/06/1988 | CA1246026A1 Manually actuated dispenser |
| 12/01/1988 | WO1988009440A1 Reciprocation switching structure for pumps |
| 11/30/1988 | EP0292994A2 Apparatus for transferring small amount of fluid |
| 11/30/1988 | EP0155315B1 Floating piston coupling for plunger type pumps |
| 11/30/1988 | CN88211163U Multipurpose hand-driven portable high pressure inflater |
| 11/30/1988 | CN87215018U Oscillating hand-driven pump |
| 11/22/1988 | CA1245195A1 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 |
| 11/17/1988 | WO1988009006A1 Liquid injection apparatus having an external adjustor |
| 11/17/1988 | EP0290451A1 Device for injecting a fluid into a network |
| 11/15/1988 | US4784579 Hydraulic-pneumatic power transfer unit |
| 11/15/1988 | CA1244743A1 Method for transporting liquid substances by utilizing the potential energy of an operating fluid and liquid column machine for the implementation of the technique |
| 11/09/1988 | EP0290048A2 Proportioning pump for viscous liquids |
| 11/09/1988 | CN88200244U Hand sprinking irrigation pump |
| 11/01/1988 | US4781544 Apparatus for transmitting pressure from a hydraulic fluid to a material having solid particles suspended in a liquid medium |
| 11/01/1988 | CA1243960A1 Air operated motor |
| 10/27/1988 | DE3711714A1 Device for pumping pasty masses and liquids, and method of filling and of operation |
| 10/26/1988 | CN87209141U Compression engine with rotation balance |
| 10/25/1988 | US4780065 Cylinder pump having an air sensor activated reversing valve |
| 10/25/1988 | US4780064 Pump assembly and its method of operation |
| 10/20/1988 | WO1988008083A1 Apparatus for and method of pumping output fluids such as abrasive liquids |
| 10/19/1988 | EP0286792A2 Driving device for a pump, especially a liquid-metering pump |
| 10/18/1988 | US4778356 Diaphragm pump |
| 10/18/1988 | US4778349 Multiple machine drive shaft and coupling adapter assembly |
| 10/12/1988 | EP0285817A2 Inter-fluid transmitter |
| 10/11/1988 | US4776775 Chemical injector pump |
| 10/11/1988 | US4776774 Hydraulic double-acting hydropneumatic pressure multiplying device |
| 10/11/1988 | US4776176 Liquid exchange systems |
| 10/11/1988 | CA1242977A1 Reverse osmosis hand pump |
| 10/06/1988 | WO1988007712A1 Standard gas flow apparatus |
| 10/06/1988 | WO1988007495A1 Hydraulic manually-operated single-piston pump |
| 10/06/1988 | DE3709785A1 Positive-displacement pump with oscillating displacers |
| 10/05/1988 | CN87212755U 简易手压水泵 Simple hand pressure pump |
| 09/27/1988 | US4773226 Power production system |
| 09/14/1988 | EP0281794A1 Liquid piston pump driven by a compressed-air piston engine |
| 09/06/1988 | US4768420 Control arrangement for controlling a hydraulic drive for driving a piston pump |
| 08/31/1988 | EP0280551A2 Container pump combination |
| 08/30/1988 | US4767290 Fluid pump |
| 08/23/1988 | US4765509 Pumping system |
| 08/17/1988 | EP0278739A1 Constant suction pump for high performance liquid chromatography |
| 08/16/1988 | US4763803 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 |
| 08/16/1988 | US4763751 Electrohydraulic motor transmission vehicle drive system |
| 08/10/1988 | CN87203248U Hand water pump |
| 08/03/1988 | EP0276983A2 Pump dispenser for viscous fluids |
| 08/03/1988 | CN87205794U Pedal water pump |
| 08/02/1988 | US4761118 Positive displacement hydraulic-drive reciprocating compressor |
| 07/27/1988 | EP0275498A1 Electric motor driven hydraulic pump |
| 07/20/1988 | EP0274877A1 Dispenser pump |
| 07/20/1988 | EP0274620A2 Liquid dispensing pump |
| 06/29/1988 | CN87205266U Manual double-cylindrical pumper |
| 06/28/1988 | US4753581 Constant suction pump for high performance liquid chromatography |
| 06/28/1988 | US4753118 Driving arrangement, especially for a liquid metering pump |
| 06/22/1988 | EP0272137A2 Hydraulic pneumatic power transfer unit |
| 06/21/1988 | US4752192 Rotating drum pump having a plurality of fluid driven pistons |
| 06/15/1988 | CN87200640U Livestock driving reciprocating pump |
| 06/14/1988 | US4750869 Method and apparatus for boosting gas from a low-pressure source to a high-pressure receptacle |
| 06/14/1988 | CA1238022A1 Manually actuated pump having pliant piston |
| 06/14/1988 | CA1238021A1 Manually operated dispensing pump |
| 06/08/1988 | EP0204727B1 A drive mechanism for axial movement of a rod, in particular an infusion pump |
| 06/08/1988 | CN87214693U Double hydraulic motor water-powered piston pump with piston rod free from pressure loading |
| 06/08/1988 | CN87202090U Air chamber aerator for drilling well slurry pump |
| 06/01/1988 | EP0269513A2 Oil cable pumping plant |
| 06/01/1988 | CN87204833U Reciprocating pumper |
| 05/31/1988 | US4747760 Hand-actuatable pump for feed pumps of fuel injection systems for internal combustion engines |
| 05/31/1988 | US4747758 Fluid pressure-intensifier |
| 05/25/1988 | EP0268458A2 Apparatus for driving piston by fluid pressure |
| 05/25/1988 | EP0268204A1 Piezoelectric pump |
| 05/25/1988 | CN87211811U Siphonic suction liquid cylinder |
| 05/11/1988 | EP0266400A1 High efficiency pump method and apparatus with hydraulic actuation |
| 05/04/1988 | EP0265591A2 Reciprocating pump |
| 05/03/1988 | US4741673 Apparatus for and a method of transferring liquid |
| 04/27/1988 | EP0265270A2 A non throttling discharge pump assembly |
| 04/27/1988 | EP0264934A2 Low pulsation pump device |
| 04/27/1988 | EP0264719A2 Method and device for the continuous and quantity-controlled liquid exchange in distillation plants and absorption refrigeration cycles |
| 04/27/1988 | EP0264632A2 Coaxial - piston pumping unit |
| 04/21/1988 | WO1988002818A1 Double acting fluid intensifier pump |
| 04/19/1988 | US4738600 Lubricating system |
| 04/13/1988 | CN85108837B Apparatus for releasing clutch which connects the motor driving device with the compressor |
| 04/05/1988 | US4735051 Double admitting pressure intensifier |
| 03/30/1988 | EP0261180A1 Anti-contamination flow control in liquids. |
| 03/29/1988 | US4734013 Rotary pressure intensifier |
| 03/29/1988 | CA1234557A1 Hydraulically powered compressor and hydraulic control and power system therefor |
| 03/23/1988 | EP0260925A1 Dispenser guns |
| 03/23/1988 | EP0260760A2 Liquid chromatograph |