| Patents for F04B 23 - Pumping installations or systems (4,078) |
|---|
| 11/09/1993 | CA1324033C Method and apparatus for pumping high-consistency fiber suspension |
| 10/26/1993 | US5255828 Liquid developer supply system with pump for discharging fixed amounts of liquid developer |
| 10/20/1993 | EP0566151A1 Pumping of liquified gas |
| 10/20/1993 | CN1077521A Pumping apparatus |
| 10/19/1993 | US5253981 Multichannel pump apparatus with microflow rate capability |
| 10/13/1993 | EP0427798B1 Apparatus for and method of managing liquid under pressure |
| 10/12/1993 | US5252033 Portable car-used oil extracting and tire inflation apparatus |
| 10/07/1993 | DE4210539A1 Jet pump for use in vehicle fuel tank - has membrane pump operating in parallel to give full flow even when vapour is present. |
| 10/06/1993 | EP0564394A1 Pressure testing pump |
| 09/28/1993 | US5248069 Viscous fluid pressurizing apparatus |
| 09/21/1993 | US5246346 Hydraulic power supply |
| 09/19/1993 | CA2090915A1 Pumping apparatus |
| 09/16/1993 | WO1993018307A1 Compressor slide valve control |
| 09/16/1993 | WO1993018303A1 Wet electric motor driven pump |
| 09/15/1993 | CN2142150Y Granule-eliminating integrated pump |
| 09/15/1993 | CN1022125C Volumetric pump |
| 09/02/1993 | WO1993016829A1 Pump apparatus for pumping melt metal |
| 08/18/1993 | EP0555621A1 Pump arrangement |
| 08/17/1993 | US5235945 Rotary engine system |
| 08/11/1993 | EP0554706A1 Method and device for feeding a fluid |
| 07/20/1993 | US5228842 Quick-change fluid section for piston-type paint pumps |
| 07/17/1993 | WO1993014317A1 Variable pressure inlet system for hydraulic pumps |
| 07/17/1993 | CA2099666A1 Variable pressure inlet system for hydraulic pumps |
| 07/13/1993 | US5226801 Shock absorber type compressor |
| 07/08/1993 | WO1993013295A1 Rotary engine system |
| 07/08/1993 | CA2125654A1 Rotary engine system |
| 06/29/1993 | US5222875 Variable speed hydraulic pump system for liquid trailer |
| 06/24/1993 | DE4142268A1 Kraftstoff-foerdereinrichtung Fuel foerdereinrichtung |
| 06/22/1993 | US5221195 Pressure testing pump |
| 06/15/1993 | US5220225 Integrated electric motor driven inline hydraulic apparatus |
| 06/15/1993 | US5218827 Pumping of liquified gas |
| 05/27/1993 | WO1993010354A1 Pump |
| 05/27/1993 | DE4138516A1 Pumpe Pump |
| 05/04/1993 | US5207567 Pump with integral sump |
| 04/27/1993 | US5205378 Pulse-action mist lubrication system |
| 04/08/1993 | DE4132930A1 Variable output compact hydraulic pump for brake circuit - has array of spring mounted pistons with non-return valves and operated by solenoids in programmed pattern |
| 04/01/1993 | WO1993006572A1 Proximity detection system and oscillator, and method of using same |
| 04/01/1993 | WO1993005870A1 Pump assembly |
| 03/25/1993 | DE4131095A1 Pumpenanordnung Pump assembly |
| 03/04/1993 | DE4126640A1 Two=stage pump for liquids - uses fluid from low pressure stage to cool stressed parts of high pressure pump |
| 03/02/1993 | US5190444 Tandem fuel pump assembly for internal combustion engine |
| 02/23/1993 | US5188516 For an aquarium |
| 02/18/1993 | WO1993003279A1 Quick-change fluid section for piston-type paint pumps |
| 02/16/1993 | US5186612 Variable pressure inlet system for hydraulic pumps |
| 02/03/1993 | EP0525329A2 Variable speed hydraulic pump system for liquid trailer |
| 02/02/1993 | US5183395 Compressor slide valve control |
| 01/27/1993 | EP0524334A1 Water supply installation for a dental work station |
| 01/26/1993 | US5181833 Portable pump system |
| 01/14/1993 | DE4122523A1 Piston pump with a coaxial pressure reservoir - - compact arrangement of two pistons on a common piston rod |
| 01/07/1993 | DE4120845A1 Hydraulic pressure producer - has pneumatically-driven hydraulic piston pump with valves and fluid container integrated in square block |
| 12/30/1992 | CN1067482A Multipurpose pump for aeration and liquid suction |
| 12/23/1992 | EP0519580A2 Rotary compressor |
| 12/10/1992 | WO1992021879A1 A pump system |
| 11/12/1992 | DE4217259A1 Doppelpumpe Double pump |
| 10/29/1992 | WO1992015783A3 High-pressure cleaning device |
| 10/08/1992 | DE4111196A1 Double acting cylinder drive aggregate for portable tools and equipment - has tilt switch to control pneumatic line to hydraulic pump |
| 09/17/1992 | WO1992015979A1 Computer controlled positive displacement pump for physiological flow simulation |
| 09/17/1992 | WO1992015783A2 High-pressure cleaning device |
| 09/08/1992 | US5145339 Pulseless piston pump |
| 08/12/1992 | CN2112705U High pressure multi-purpose reciprocating pump |
| 07/21/1992 | US5131819 Apparatus for and method of managing liquid under pressure |
| 07/08/1992 | EP0493982A1 Pulse-action mist lubrication system |
| 07/08/1992 | EP0486556A4 Pulseless piston pump |
| 07/01/1992 | CN1062404A Multi-stage cascaded, open-loop, axial plunger pump |
| 06/23/1992 | US5123810 Power transmission |
| 06/16/1992 | CA1303560C Multi-channel linear concentrate pump |
| 06/10/1992 | CN2106912U Model l3.3-18.33/320 nitrogen-hydrogen compressor |
| 06/03/1992 | EP0488043A1 Capacity volume ratio control for twin screw compressors |
| 06/02/1992 | US5118265 Liquid pump assembly |
| 05/27/1992 | EP0486556A1 Pulseless piston pump. |
| 04/14/1992 | US5104294 Hydraulic pump assembly with accumulator and oil reservoir |
| 03/10/1992 | US5094597 Variable discharge pump |
| 02/27/1992 | DE4026717A1 Displacement or piston pump - has booster pump connected to its crankshaft via magnetic or electrodynamic coupling |
| 02/11/1992 | US5086975 Pressure washer with spring-less outlet to inlet bypass |
| 02/04/1992 | US5085769 Fuel filter assembly for an oil burner pump |
| 01/22/1992 | EP0467030A2 Housing arrangement for fluid pump and tank |
| 01/19/1992 | CA2043101A1 Housing arrangement for a fluid pump and tank |
| 12/31/1991 | US5076544 Connecting apparatus of a hoist drum |
| 12/24/1991 | US5074761 Rotary compressor |
| 12/24/1991 | US5074760 Scroll type compressor |
| 12/11/1991 | CN2090438U Reciprocating pump |
| 12/10/1991 | US5070849 Modular fuel delivery system |
| 12/03/1991 | CA1292639C Submersible positive displacement piston pump |
| 11/26/1991 | US5067654 Pressure washer |
| 11/12/1991 | US5064350 Pump station |
| 10/23/1991 | CN2087250U High effiency self-suction pump |
| 10/23/1991 | CN2087249U Convenient pump |
| 10/16/1991 | CN1014346B Rotary compressor |
| 10/02/1991 | CN1014140B Multi-channel linear concentrate pump |
| 10/01/1991 | US5052901 Lift valve in a rotary screw machine |
| 09/18/1991 | EP0261180B1 Anti-contamination flow control in liquids |
| 09/12/1991 | DE4106088A1 Flushing and emptying tank - involves port with filter connecting main part to fresh-water tank with pump |
| 09/03/1991 | US5044894 Capacity volume ratio control for twin screw compressors |
| 08/28/1991 | EP0443665A1 Pressure pump |
| 08/27/1991 | US5042521 Switching apparatus for suction system in a vacuum pump |
| 08/20/1991 | US5040949 Two stage dry primary pump |
| 08/14/1991 | DE4103986A1 Double pump with radial piston and sliding vanes - provides small amount of axial play for cylinder ring |
| 07/25/1991 | DE4001418A1 High pressure plunger pump - has outlet hoses connecting to accumulator and of same length |
| 07/16/1991 | US5032065 Radial piston pump |
| 06/05/1991 | EP0246247B1 Manure vacuum wagon power assist auger |