| 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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| 10/13/2004 | CN2648104Y Pedal water pump |
| 10/13/2004 | CN2648103Y Automatic hydraulic booster filling pump |
| 10/13/2004 | CN2648102Y 转缸式活塞泵 Turn-cylinder piston pump |
| 10/13/2004 | CN2648101Y Oscillating piston pump |
| 10/13/2004 | CN2648100Y Oil well operation plunger pump |
| 10/13/2004 | CN1535901A Pump and contaner with said pump |
| 10/13/2004 | CN1171015C Self-pressurizing high-pressure alchol-injection pump |
| 10/13/2004 | CN1171004C Airless spray pump |
| 10/13/2004 | CN1170686C Ink pump of printer drived by movement of bracket |
| 10/11/2004 | CA2462236A1 Dispenser for hardenable viscous pasty compounds |
| 10/07/2004 | US20040197214 Pump having shape memory actuator and fuel cell system including the same |
| 10/07/2004 | US20040197211 Reciprocating fluid transfer pump |
| 10/07/2004 | US20040197210 Pumping system, pumping system valve, replacement kit for a valve, and related manufacturing method |
| 10/06/2004 | EP0932761B1 Piston pump |
| 10/06/2004 | CN2646412Y Hand operated proportioning pump |
| 10/06/2004 | CN1534198A Fluid draining pump device |
| 10/05/2004 | US6800071 Fluid reservoir piston |
| 10/05/2004 | US6799954 Tappet turning-prevention structure for fuel supply apparatus |
| 09/30/2004 | US20040191092 Multiple pump housing |
| 09/30/2004 | US20040188464 Metering pump dispenser |
| 09/30/2004 | US20040187562 Method and system for the controlled application of fluid pressure to a load, especially for pressure testing pipe |
| 09/30/2004 | DE202004011635U1 Pneumatic pressure enhancing system has a reciprocating double piston and connection to the line pressure via a control switch backed by pressure pulses from the reciprocating setting and with additional reciprocating venting valve |
| 09/29/2004 | EP1462648A2 Fluid discharge pumping apparatus |
| 09/29/2004 | EP1462181A1 Dosing dispenser with bellows pump and follower plunger |
| 09/29/2004 | EP1461096A1 Rotating compressor |
| 09/29/2004 | EP0912830B1 Double acting pneumatically driven rolling diaphragm pump |
| 09/29/2004 | CN2644700Y Self-flow oil absorbing device |
| 09/29/2004 | CN2644699Y Automatic oil absorbing and draining device |
| 09/29/2004 | CN2644698Y High-lift vacuum pump squeezer |
| 09/29/2004 | CN2644697Y Automatic pump for steam cleaning machine |
| 09/29/2004 | CN2644696Y Fixed quantity direct-axis type plunger pump of hydraulic pump |
| 09/29/2004 | CN1532400A Quantitative pump distributor |
| 09/29/2004 | CN1532392A Cam shaft angle sensor mounting structure of IC engine |
| 09/28/2004 | US6796775 Fuel injection pump |
| 09/23/2004 | WO2004081421A2 Spring fixing structure of reciprocating compressor |
| 09/22/2004 | EP1459671A2 Wash-basin dispenser for soap or similar |
| 09/22/2004 | EP1458974A1 Multi pumping chamber magnetostrictive pump |
| 09/22/2004 | EP1458508A1 Hydraulic device for pumping molten metal and/or controlling a molten metal flow |
| 09/22/2004 | EP1232340B1 Piston pump |
| 09/22/2004 | CN1530302A Discharging apparatus for producing manual volumetric flow |
| 09/22/2004 | CN1167877C Double-acting four-plunger hydraulic delivery pump |
| 09/22/2004 | CN1167876C Hydraulic blower |
| 09/21/2004 | CA2228092C Reciprocating machine |
| 09/16/2004 | WO2004079194A2 Hydraulic pump and hydraulic system comprising said pump |
| 09/16/2004 | US20040178703 Stacked piezoelectric device and method of fabricating same |
| 09/16/2004 | US20040178227 Device for producing high pressure in a fluid in miniature |
| 09/16/2004 | US20040178145 provides an optimized pulsed fluid flow to a filtration element; comprises a differential pressure activated valve, which seals the discharge port of the retentate head when the feed pressure exceeds the retentate pressure |
| 09/15/2004 | EP1456536A1 Hydraulic amplifier pump |
| 09/15/2004 | EP1212800A4 Improved electroactive polymers |
| 09/15/2004 | CN2641313Y Super high pressure oil pump |
| 09/15/2004 | CN1166859C Concealed multifunctional inflator |
| 09/14/2004 | US6790010 Switching system for a reciprocating piston pump |
| 09/14/2004 | US6789459 High-pressure fuel pump |
| 09/14/2004 | CA2324489C Pump designed to be fitted to a receptacle, comprising an elastically deformable diaphragm outside the pump chamber |
| 09/09/2004 | US20040175278 Pressure washer having oilless high pressure pump |
| 09/09/2004 | US20040173641 Liquid dispensing device |
| 09/09/2004 | US20040173528 Pumps for filtration systems |
| 09/09/2004 | DE102004006777A1 Gestapelte piezoelektrische Einrichtung und Verfahren zur Herstellung derselben Stacked piezo-electric device and method for manufacturing the same |
| 09/08/2004 | EP1454059A1 A linear self-adjustable compression pump of variable displacement for power transmission of infinite ratios including a variable geometry crankshaft |
| 09/08/2004 | EP1453592A1 Dual head pump driven membrane system |
| 09/08/2004 | CN2639554Y Electrohydraulic high-pressure plunger pump |
| 09/08/2004 | CN1165699C One-way valve |
| 09/08/2004 | CN1165382C Bellows pump for delivery of liquids in container |
| 09/07/2004 | US6786206 Fuel pump drive system |
| 09/02/2004 | WO2004074692A2 Flexible hose apparatus |
| 09/02/2004 | US20040170772 Pump with pressure vessel with partitions for separation and discharging a solution |
| 09/02/2004 | US20040170510 Method for using a hydraulic amplifier pump in ultrahigh pressure liquid chromatography |
| 09/01/2004 | CN2637760Y Dual-cylinder rocking pump |
| 09/01/2004 | CN1164462C Fluid pump distributor with products reclaiming characteristics |
| 08/26/2004 | US20040166005 Micro irrigation pump |
| 08/26/2004 | US20040165997 Equi-pressure pump for cleaning an engine |
| 08/26/2004 | US20040164022 Inlet port connected to high pressure pump; conversion apparatus in communication with a low pressure water supply and reverse osmosis filter |
| 08/26/2004 | DE10306686A1 Austragvorrichtung zur manuellen Erzeugung eines Volumenstroms Discharge for manual generation of a volume flow |
| 08/25/2004 | EP1448475A1 Dispensing device |
| 08/25/2004 | CN2635937Y Multi-function hand driven water pump |
| 08/24/2004 | US6779987 Pressure washer having oilless high pressure pump |
| 08/19/2004 | WO2004069420A1 Pump unit and container |
| 08/19/2004 | US20040161349 Dosing pump |
| 08/19/2004 | US20040161347 Flexible hose apparatus |
| 08/19/2004 | US20040159679 Discharge device for manually producing a volume flow |
| 08/18/2004 | EP1447140A2 Discharging device for manually producing a given volume flow |
| 08/18/2004 | EP1447125A1 Pump for seawater desalination systems using reverse osmosis |
| 08/18/2004 | CN2634141Y Hand driven high pressure pump |
| 08/18/2004 | CN1522342A 微型灌溉泵 Micro-irrigation pumps |
| 08/18/2004 | CN1521396A Self-aligning supercharger |
| 08/18/2004 | CN1162307C Liquid distributing pump |
| 08/18/2004 | CN1162223C Diaphragm pump |
| 08/17/2004 | US6776080 Hydraulic pressure intensifier |
| 08/17/2004 | US6775856 Toilet bowl pump apparatus, and method of reducing the water level in a toilet bowl |
| 08/12/2004 | WO2004067962A2 Manual liquid metering device and cartridge |
| 08/12/2004 | WO2004067181A2 Reverse osmosis liquid purification device |
| 08/12/2004 | WO2004011763A3 Mechanical bladder pump |
| 08/12/2004 | US20040156733 High pressure feed pump |
| 08/12/2004 | US20040156731 Straight-cut motor shaft with pinned eccentric |
| 08/11/2004 | EP1444141A1 Pump for dispensing flowable material |
| 08/11/2004 | EP1444046A2 Fluid product dispensing pump |
| 08/11/2004 | EP1358407A4 High pressure water pump |
| 08/11/2004 | CN1519472A Equipment for pumping ground water |
| 08/11/2004 | CN1161539C Reciprocating fluid machines |
| 08/05/2004 | WO2004065544A2 Cell suspension rotating fluidic pump |