| Patents for F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members (9,236) |
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| 03/13/2002 | EP1186311A2 Syringe pumps |
| 03/13/2002 | EP1185794A1 Piston pump |
| 03/13/2002 | EP1185793A1 Method and arrangement for pumping material |
| 03/13/2002 | EP1185482A1 Thermal actuator shaped for more uniform temperature profile |
| 03/13/2002 | CN2481871Y Hand pump of water well |
| 03/12/2002 | US6354820 Pump |
| 03/12/2002 | US6354819 Diaphragm pump including improved drive mechanism and pump head |
| 03/12/2002 | US6354814 Device for conversion of a unidirectional rotational motion into reciprocating back and forth motion and pump device comprising same |
| 03/07/2002 | WO2002017992A1 Suction pump |
| 03/06/2002 | EP1184042A1 Suction pump |
| 03/06/2002 | EP1183469A1 High pressure pump with filler cap |
| 03/06/2002 | EP1183468A1 High pressure pump with improved hub |
| 03/06/2002 | EP1183059A1 Method and apparatus for infusing liquids using a chemical reaction in an implanted infusion device |
| 03/06/2002 | CN2480580Y Vacuum valve pump |
| 03/06/2002 | CN1338976A Dispenser of chemically unstable products |
| 02/28/2002 | WO2002016766A2 Reciprocating motor with unidirectional fluid flow |
| 02/28/2002 | US20020025260 Fluid discharge apparatus and fluid discharge method |
| 02/28/2002 | DE10039548A1 Drive device for fluid-dosing injector, has closing portion with sealing component for closing passage in wall region of drive piston and for separating chambers in drive cylinder |
| 02/27/2002 | EP1181451A1 System for transport of fluid |
| 02/27/2002 | CN2479243Y Hydraulic driven oil-gas mixing transfer pump |
| 02/26/2002 | US6350015 Magnetic drive systems and methods for a micromachined fluid ejector |
| 02/26/2002 | CA2224054C Water pumping apparatus utilizing compressed air |
| 02/21/2002 | US20020020675 Electrolytic cell for generating at least one oxidant, electrolyte reservoir, power source, activator for activating power source |
| 02/21/2002 | DE10038647A1 Pumping concrete and other viscous materials, determines position of piston during stroke from quantity of pressure medium supplied and leaving |
| 02/20/2002 | CN2477855Y Sludger for deep well drilling machine and drilling machine vehicle |
| 02/16/2002 | CA2354771A1 Syringe pumps |
| 02/13/2002 | EP1179677A1 Hydraulic pump with built-in electric motor |
| 02/13/2002 | EP1179139A1 Micromechanic pump |
| 02/13/2002 | EP1178888A1 Actuator control in a micro electro-mechanical liquid ejection device |
| 02/13/2002 | CN2476653Y Hydraulic water-pumping machine |
| 02/07/2002 | DE10036202A1 Dickstoffpumpe Slurry pump |
| 02/06/2002 | EP1177036A1 Apparatus and method for customising cosmetic products |
| 02/06/2002 | CN2475847Y High pressure hand pump |
| 02/06/2002 | CN2475846Y Cylinder cam-type axial plunger pump |
| 02/06/2002 | CN1334903A Low pressure ratio piston compressor |
| 01/31/2002 | WO2002008605A1 Thick matter pump |
| 01/31/2002 | US20020012597 Pump apparatus |
| 01/31/2002 | DE10034238A1 Hydrotransformator Hydro transformer |
| 01/31/2002 | DE10034095A1 Dosierpumpe Metering pump |
| 01/30/2002 | EP1176311A2 Pump apparatus |
| 01/30/2002 | EP1175565A1 Device for converting pneumatic energy into hydraulic energy |
| 01/30/2002 | EP1175371A1 Actuator element |
| 01/30/2002 | CN1333861A Piezoelectric micropump |
| 01/29/2002 | US6341950 Piston pump |
| 01/24/2002 | WO2002006670A1 Dosing pump |
| 01/24/2002 | WO2002006669A1 Hydraulic transformer |
| 01/24/2002 | US20020009374 Micro pump |
| 01/23/2002 | EP0991877B1 Device, specially a pump |
| 01/23/2002 | CN2473356Y Multifunction man power deep water pumping unit |
| 01/23/2002 | CN2473354Y Double cylinder plunger pump |
| 01/17/2002 | DE10033331A1 Membrane pump for liquid, tixotropic, abrasive additives for mixing of dry compounds has automatically regulated dosing system operated by fluid motor without outside energy |
| 01/17/2002 | DE10031734A1 Method for powering fuel pump for IC engine has the pump driven via a cam follower rolling over a cam at one end of the camshaft |
| 01/16/2002 | EP1172553A2 Hydraulic transformer |
| 01/16/2002 | EP1171710A1 Pump system for delivering cryogenic liquids |
| 01/16/2002 | EP1171689A1 Reciprocating fluid machines |
| 01/16/2002 | CN1077958C Adjustable hydrostatic pump |
| 01/10/2002 | WO2002002423A1 Pump for dispensing flowable material |
| 01/10/2002 | WO2001030421A3 Plunger plug with stiffening insert |
| 01/10/2002 | DE10032024A1 Device for increasing the input pressure of a pneumatic medium for use in pressure testing, rupture testing, etc., can be made with commercially available components to reduce production costs while offering a wide operating range |
| 01/10/2002 | CA2466527A1 Pump for dispensing flowable material |
| 01/09/2002 | EP1170051A2 Liquid filtering apparatus |
| 01/09/2002 | EP1169574A1 Composite piston for a vibration pump |
| 01/09/2002 | EP1169136A1 Fluid dispensing apparatus |
| 01/09/2002 | CN2470570Y Wind Pressurizing water-pump |
| 01/09/2002 | CN2470569Y Pneumatic hydraulic pump |
| 01/09/2002 | CN1330219A Oblique crankshaft drive unit and its application in IC engine, compressor, press and oil pump |
| 01/03/2002 | US20020002321 Pump driving unit for driving a pump used for supporting or substitution of cardiac function |
| 01/03/2002 | US20020001526 Pumps |
| 01/03/2002 | US20020001525 Radial piston pump |
| 01/02/2002 | EP1168581A1 Pumps |
| 01/02/2002 | EP1165247A1 Suction pump |
| 01/02/2002 | CN2469207Y Multi-functional man power pump |
| 01/02/2002 | CN1329697A Ball screw driven pump |
| 01/02/2002 | CN1329213A Self-pressurizing high-pressure alchol-injection pump |
| 01/02/2002 | CN1077201C Gas driven mechanical oscillator and method |
| 01/01/2002 | US6334760 Pump and filter assembly for low viscosity fluids |
| 01/01/2002 | US6334549 Fluid pump dispenser having product retraction feature |
| 12/27/2001 | US20010054626 Spring-effect pushbutton |
| 12/27/2001 | US20010054623 Pump including a spring-forming diaphragm, and a receptacle fitted therewith |
| 12/26/2001 | CN2467819Y Piston compressor |
| 12/19/2001 | EP1163448A1 Fuel injection pump and snubber valve assembly |
| 12/19/2001 | EP1163172A1 Double spring precompression pump with priming feature |
| 12/19/2001 | EP0859912B1 Air driven diaphragm pump |
| 12/19/2001 | CN2466378Y 单向阀式组合泵 Pump check valve combo |
| 12/19/2001 | CN2466376Y Pneumatic mateiral pumping device for polyurethane foaming machine |
| 12/19/2001 | CN2466375Y Hydraulic vertical double-cylinder single-action pump |
| 12/18/2001 | US6331101 Two-cylinder pump |
| 12/13/2001 | DE10020815A1 Converter of static force into energy of motion has static force acting perpendicularly on first force arm fixed to first shaft mounted by carriage on guide rail |
| 12/12/2001 | CN2464959Y Water lifting pump |
| 12/12/2001 | CN2464958Y Split ultrahigh pressure hand power oil pump |
| 12/12/2001 | CN1326050A 直线往复式压缩机 Linear reciprocating compressors |
| 12/12/2001 | CN1325815A Container for beverage |
| 12/11/2001 | US6328542 Check valve system |
| 12/11/2001 | US6328537 Radial piston pump |
| 12/11/2001 | US6328536 Reciprocating low pressure ratio compressor |
| 12/06/2001 | WO2001092146A1 Manually actuated pump assembly |
| 12/06/2001 | WO2001091913A1 Diaphragm pump |
| 12/06/2001 | WO2001091911A1 Bellows pump for delivery of liquids |
| 12/06/2001 | WO2001091832A1 Super absorbent driven dispenser |
| 12/06/2001 | US20010048884 Piston pump for a brake system for a vehicle |