| 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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| 03/18/2003 | CA2270936C Pump for dispensing flowable media |
| 03/13/2003 | US20030049135 Electronic control system and process for electromagnetic pump |
| 03/13/2003 | US20030047066 Axial piston pump with rocker cam counterbalance feed |
| 03/12/2003 | EP1289658A2 Valve for use in microfluidic structures |
| 03/12/2003 | CN2539847Y Rocker water pump |
| 03/12/2003 | CN1401896A Hand and pneuamtic oil pump |
| 03/12/2003 | CN1401895A Double-acting four-plunger hydraulic delivery pump |
| 03/12/2003 | CN1401894A Double-acting four-plunger hydraulic pump or motor |
| 03/12/2003 | CN1401893A Mixed flow fan vane for air-cooled compressor |
| 03/12/2003 | CA2391544A1 Axial piston pump with rocker cam counterbalance feed |
| 03/11/2003 | US6530759 Reciprocating plunger pump with seal mounting support |
| 03/06/2003 | US20030044285 Magnetic pumping system |
| 03/06/2003 | US20030042272 Membrane pump and container equipped therewith |
| 03/05/2003 | EP1286783A1 Bellows pump for delivery of liquids |
| 03/05/2003 | EP1286710A1 Super absorbent driven dispenser |
| 03/05/2003 | CN1400386A Double-cylinder water-lifting machine |
| 03/05/2003 | CN1102527C Fluid pump dispenser |
| 03/04/2003 | US6527662 Pump drive apparatus |
| 03/04/2003 | US6527518 Water-powered sump pump |
| 02/28/2003 | CA2400577A1 Recirculating linear gas drive system |
| 02/27/2003 | US20030039561 Grease extraction using a fluid motivated pump |
| 02/26/2003 | EP1284827A1 Diaphragm pump |
| 02/25/2003 | US6524475 Portable water disinfection system |
| 02/25/2003 | US6523524 Radial piston pump |
| 02/25/2003 | CA2118979C Sampling pump |
| 02/20/2003 | WO2003014569A1 High pressure feed pump |
| 02/20/2003 | US20030035741 Manual/pneumatic oil-pumping device |
| 02/20/2003 | US20030033969 Marine steering system having dual hydraulic and electronic output |
| 02/19/2003 | EP1284367A1 High-pressure fuel pump |
| 02/19/2003 | EP1283959A2 Roller bearing, piston pump and pump unit |
| 02/19/2003 | EP1283957A1 Micromachined fluidic device and method for making same |
| 02/19/2003 | CN2536807Y Rotor radial reciprocating pump without valves |
| 02/19/2003 | CN1398330A High pressure low volume pump |
| 02/18/2003 | US6520936 Method and apparatus for infusing liquids using a chemical reaction in an implanted infusion device |
| 02/18/2003 | US6520746 Apparatus and method for controlling operation of reciprocating compressor |
| 02/18/2003 | US6520385 Pump including a spring-forming diaphragm, and a receptacle fitted therewith |
| 02/18/2003 | US6520076 Oil pressure device |
| 02/13/2003 | WO2003012296A1 Pumping arrangement |
| 02/13/2003 | WO2003011439A1 Pump for seawater desalination systems using reverse osmosis |
| 02/13/2003 | WO2003011376A2 Apparatus and method for regulating fluid pump pressures |
| 02/13/2003 | WO2002044075A3 Fluid delivery device |
| 02/13/2003 | CA2420125A1 Pump for seawater desalination systems using reverse osmosis |
| 02/12/2003 | CN1101523C Plunger pump |
| 02/06/2003 | WO2003010435A1 Dosing pump |
| 02/04/2003 | CA2187578C Pump drive head |
| 02/04/2003 | CA2122673C Air operated double diaphragm pump |
| 02/04/2003 | CA2084299C Valve porting for rotating barrel ram pump |
| 01/30/2003 | WO2003008076A1 Dual head pump driven membrane system |
| 01/30/2003 | US20030021709 Plunger pump device |
| 01/30/2003 | US20030021700 Fluid intensifier pump system |
| 01/30/2003 | CA2492777A1 Dual head pump driven membrane system |
| 01/29/2003 | EP1279849A2 Torque transmission and limiting device |
| 01/29/2003 | EP0934123B1 Pump |
| 01/29/2003 | CN2533290Y Hydraulic drive reciprocating hydraulic pump |
| 01/29/2003 | CN1393638A Device for draining fluid |
| 01/28/2003 | US6510780 Ball screw driven pump |
| 01/23/2003 | US20030017909 Power transmission device |
| 01/23/2003 | US20030017061 Pump for sea water desalination systems by reverse osmosis |
| 01/22/2003 | EP1121530B1 Piston pump for supplying fuel at high pressure |
| 01/22/2003 | CN2532268Y Diameter-changeable double-displacement hand driven plunger pump |
| 01/22/2003 | CN1392808A Mold cooling device |
| 01/22/2003 | CN1099528C Engine fuel pump |
| 01/21/2003 | US6510366 Apparatus and method for customizing cosmetic products |
| 01/21/2003 | US6508161 Simplified piston pump |
| 01/16/2003 | DE20216295U1 Piston pump for multiple component adhesives has common drive shaft connected to lever arms coupled to connecting rods of different size pumping cylinders |
| 01/15/2003 | EP1274932A1 Pump |
| 01/15/2003 | CN2531127Y Constant power multi-functional foot water pump |
| 01/14/2003 | US6506033 Miniature pump with ball-plate drive |
| 01/14/2003 | US6506030 Reciprocating pumps with linear motor driver |
| 01/09/2003 | WO2003002876A1 Booster |
| 01/08/2003 | CN2530054Y Drainer for powder hole |
| 01/07/2003 | US6503066 Hydrostatic pressure test pump |
| 01/07/2003 | US6503062 Method for regulating fluid pump pressure |
| 01/03/2003 | WO2003001060A1 Device for pressurized perfusion, especially for cultivating and/or treating cells |
| 01/03/2003 | WO2003001059A1 Liquid dispensing device |
| 01/01/2003 | CN2528956Y Hand water pump |
| 01/01/2003 | CN2528955Y Water raiser |
| 01/01/2003 | CN1097676C Piezoelectric micropump |
| 12/31/2002 | US6499968 Integral pump and control valve |
| 12/31/2002 | US6499384 Piston apparatus for gas/liquid pipeline |
| 12/31/2002 | US6499151 Toilet bowl pump apparatus and method for reducing the water level in a toilet bowl |
| 12/26/2002 | US20020197173 Fluid discharging device |
| 12/25/2002 | CN2527742Y Bidirectional safety valve for displacement pump |
| 12/25/2002 | CN1386976A Dual-cavity high-pressure pump |
| 12/25/2002 | CN1097161C Pump actuation means |
| 12/24/2002 | US6497565 Pump apparatus having drive force input portion aligned with pump shaft bearing member |
| 12/24/2002 | US6497373 Device for producing high pressure in a fluid in miniature |
| 12/22/2002 | CA2391771A1 Depressurizing pump assemblies and closures for beverage container |
| 12/19/2002 | WO2002101238A1 A gas compressor and relief valve |
| 12/19/2002 | WO2002101236A1 Radial piston machine |
| 12/19/2002 | US20020192092 Fuel injection pump |
| 12/19/2002 | US20020189438 Fuel injection pump |
| 12/19/2002 | DE10128066A1 Radial piston machine esp. pump has relatively easily deformable eccentric of inner ring, eccentric flexible outer ring, and intermediate damper elements |
| 12/18/2002 | CN2526541Y Pumping mechanism easy to replace concrete piston |
| 12/18/2002 | CN2526540Y Pumping mechanism easy to replace concrete piston |
| 12/18/2002 | CN2526534Y Siphon liquid sucking device |
| 12/18/2002 | CN1385608A Plane cam for high-pressure plunger type water pump cleaning machine |
| 12/18/2002 | CN1385247A Pump for spraying pump |
| 12/18/2002 | CN1385246A Pump for discharging fluid |
| 12/17/2002 | US6495366 Method for pumping or delivering fluids utilizing a flexible vessel subject to controlled pressures within another pressure vessel. the pressure vessel can be sourced with positive and/or negative (e.g., vacuum) pressure. |