| Patents for F04F 1 - Pumps using positively or negatively pressurised fluid medium acting directly on the liquid to be pumped (1,650) |
|---|
| 04/14/2005 | US20050077032 Method for heating and cooling slurries |
| 04/07/2005 | WO2005031170A1 Liquid raising system |
| 04/06/2005 | CN2690617Y Water pump of pressure well |
| 03/31/2005 | US20050067012 Pressure-differential liquid raising system |
| 03/29/2005 | US6871803 Valve with an integral orifice |
| 03/29/2005 | CA2263970C Pump |
| 03/23/2005 | EP1517047A1 A method for the pumping and delivering of multi-phase fluids, and an apparatus therefor |
| 03/23/2005 | CN1598328A Heating power pump |
| 03/03/2005 | US20050047926 Artificial lift with additional gas assist |
| 03/02/2005 | CN1587715A Pneumatic liquid transport device |
| 02/24/2005 | WO2004016946A3 Wine must and pomace pump |
| 02/16/2005 | CN1189668C Liquid delivering apparatus |
| 02/09/2005 | CN1576474A Vacuum station and the method for operating the same |
| 01/27/2005 | US20050016588 Vacuum station and the method for operating the same |
| 01/26/2005 | CN1570402A Method and apparatus for hydraulic air hoisting liquid |
| 01/20/2005 | US20050013700 Hydraulic vacuum pump |
| 01/14/2005 | CA2468160A1 Hydraulic vacuum pump |
| 01/13/2005 | WO2004055367A3 Gas pressure driven fluid pump having compression spring pivot mechanism and damping system |
| 01/04/2005 | US6837174 Pneumatic bilge liquid removal system and method therefor |
| 12/16/2004 | WO2004109121A1 Hose-end chemical delivery system |
| 12/09/2004 | WO2004106738A1 Magnetofluiddynamic pumps for non-conductive fluids |
| 11/25/2004 | US20040234392 Magnetohydrodynamic pumps for non-conductive fluids |
| 11/10/2004 | CN1175198C Orifice-built-in valve |
| 11/09/2004 | US6814264 Liquid pumping device |
| 10/26/2004 | US6808370 Gas pressure driven tank fluid pump having float and snap-acting rotary valve |
| 10/21/2004 | WO2004074629B1 Sub-sea compressor |
| 10/19/2004 | US6805149 Hose-end chemical delivery system |
| 10/07/2004 | US20040194336 Pressure vessel systems and methods for dispensing liquid chemical compositions |
| 09/23/2004 | US20040182437 Gas lift valve |
| 09/21/2004 | CA2700661A1 Gas lift valve |
| 09/21/2004 | CA2700642A1 Gas lift valve |
| 09/21/2004 | CA2700640A1 Gas lift valve |
| 09/21/2004 | CA2700296A1 Gas lift valve |
| 09/15/2004 | EP1141629B1 Pulsed combustion device and method |
| 09/14/2004 | US6789748 Water jet |
| 09/02/2004 | WO2004074629A1 Sub-sea compressor |
| 08/26/2004 | US20040166000 Wine must and pomace pump |
| 08/26/2004 | US20040163387 Wave power generator |
| 08/25/2004 | EP1448899A1 Method and device for producing a flame, in particular for a coloured flame lamp |
| 08/25/2004 | EP1448898A1 Repressurizing dispenser for carbonated beverage containers |
| 08/19/2004 | US20040159682 Liquid pumping device |
| 08/19/2004 | US20040159437 Sub-sea blow case compressor |
| 08/10/2004 | US6772803 Power steering fluid exchange system and method of use |
| 08/10/2004 | CA2133989C Compressing combustible gas flowing throughout a conduit |
| 08/05/2004 | US20040151597 Gas pressure driven fluid pump having compression spring pivot mechanism and damping system |
| 08/04/2004 | CN1517562A Method and device of falling water body vacuum suction gas |
| 07/29/2004 | US20040146409 Micro-pump driven by phase change of a fluid |
| 07/21/2004 | EP1439307A1 Bubble driven micropump |
| 07/21/2004 | EP1438567A1 Methods and systems for microfluidic processing |
| 07/21/2004 | CN1158472C Pulsed combustion device and method using the same |
| 07/01/2004 | WO2004055367A2 Gas pressure driven fluid pump having compression spring pivot mechanism and damping system |
| 07/01/2004 | CA2509805A1 Gas pressure driven fluid pump having compression spring pivot mechanism and damping system |
| 06/29/2004 | CA2133992C Compressing gas flowing through a conduit |
| 06/09/2004 | CN1502824A Method and device for program controlled water pressure pneumatic pumping liquid |
| 05/26/2004 | EP1420868A1 Fluid injector with vent/proportioner ports |
| 05/26/2004 | CN2617979Y Possative pressure self sucking water supplier for overhead steam jet pump |
| 05/25/2004 | US6739131 Combustion-driven hydroelectric generating system with closed loop control |
| 05/18/2004 | US6736155 Air oiler filler |
| 05/18/2004 | US6736154 Pressure vessel systems and methods for dispensing liquid chemical compositions |
| 05/18/2004 | CA2420624A1 Pressure operable liquid pumping system |
| 05/13/2004 | US20040091366 Pneumatic driving device and the associated method for micro fluids |
| 05/12/2004 | CN2615402Y Cross water pipe type screw fastening thermal circulating pump |
| 05/06/2004 | US20040084105 Power steering fluid exchange system and method of use |
| 04/29/2004 | DE10196445T5 Flüssigkeitspumpe und Dosiervorrichtung Liquid pump and metering |
| 04/07/2004 | CN1487868A Pressure vessel systems and methods for dispensing liquid chemical compositions |
| 04/07/2004 | CN1487206A Buoyancy type gravity pump |
| 04/07/2004 | CN1144955C Method and apparatus for forming negative pressure to suck & store liquid utilizing engine |
| 03/18/2004 | US20040052655 Wine must and pomace pump |
| 03/02/2004 | US6699019 Reciprocating windmill pumping system |
| 02/26/2004 | WO2004016953A1 Hose-end chemical delivery system |
| 02/26/2004 | WO2004016946A2 Wine must and pomace pump |
| 02/17/2004 | US6691787 Gas operated pump for use in a wellbore |
| 02/10/2004 | US6688340 Automotive power steering flush system and methods of use |
| 01/27/2004 | US6682311 Pneumatic driving device for micro fluids wherein fluid pumping is governed by the control of the flow and direction of incident plural gas streams |
| 12/31/2003 | WO2004001232A1 Pump apparatus |
| 12/24/2003 | CN2594510Y Automatic energy saving water supply pump |
| 12/24/2003 | CN1131943C 利用水的蒸发和冷凝原理的平行多级热泵 Parallel utilization of the principle of water evaporation and condensation of a multi-stage heat pump |
| 12/23/2003 | CA2342591C Liquid dispenser |
| 12/09/2003 | US6659128 Fluid injection with vent/proportioner ports |
| 12/09/2003 | US6659117 Method for dispensing a solution |
| 12/09/2003 | CA2254722C Apparatus and method for removing fluids from underground wells |
| 12/04/2003 | US20030223880 A pneumatic driving device for micro fluids wherein fluid pumping is governed by the control of the flow and direction of incident plural gas streams |
| 12/04/2003 | US20030221412 Dual chamber pump and method |
| 11/25/2003 | US6652243 Method and apparatus for filling a storage vessel with compressed gas |
| 11/20/2003 | WO2003095844A1 Steam pump |
| 11/19/2003 | CN1456816A Buoyancy-type kinetic pump |
| 11/12/2003 | EP1360418A1 Gas lift valve with central body ventury for controlling the flow of injection gas in oil wells producing by continuous gas lift |
| 11/05/2003 | EP1358045A1 Pressure vessel systems and methods for dispensing liquid chemical compositions |
| 10/30/2003 | WO2003012406A1 Methods and systems for microfluidic processing |
| 10/30/2003 | US20030202889 Reciprocating windmill pumping system |
| 10/29/2003 | CN1451887A Hydraulic gas compressor |
| 10/28/2003 | US6638024 Hydraulic air compressor system—employing a body of fluid to provide compression |
| 10/23/2003 | WO2003087583A1 Vacuum operated ink pump |
| 10/14/2003 | US6632073 Pressure operated valve; submersible recovering hydrocarbons; purification of groundwater |
| 10/09/2003 | US20030190236 Liquid pump |
| 09/24/2003 | CN2575348Y Raising & lowering apparatus |
| 09/24/2003 | CN1444710A Liquid pump and metering apparatus |
| 08/28/2003 | US20030159828 Gas operated pump for hydrocarbon wells |
| 08/21/2003 | US20030155011 Method for dispensing a solution |
| 08/21/2003 | US20030155010 Fluid injector with vent/proportioner ports |