| Patents for F04B 23 - Pumping installations or systems (4,078) |
|---|
| 05/22/1991 | EP0427798A1 Apparatus for and method of managing liquid under pressure. |
| 05/21/1991 | US5017105 Metering pump |
| 05/08/1991 | EP0426278A1 Dual capacity fluid pump |
| 05/07/1991 | US5013198 Air-hydraulic pump with auxiliary pumping means |
| 05/01/1991 | CA2022841A1 Dual capacity fluid pump |
| 04/23/1991 | US5009580 Multiple reciprocating pump |
| 04/16/1991 | US5007899 Breast pump |
| 04/16/1991 | CA1283000C Water/air pumping system |
| 03/19/1991 | US5000658 Apparatus for pumping high consistency fiber suspension |
| 03/12/1991 | CA1281195C Multiple machine drive shaft and coupling adapter assembly |
| 03/06/1991 | EP0415259A1 Dosing pump |
| 02/27/1991 | EP0413728A1 Lift valve in a rotary screw machine |
| 02/21/1991 | WO1991002158A1 Pulseless piston pump |
| 02/20/1991 | CN1049398A Volumetric pump and process for pumping volumetrically |
| 02/19/1991 | US4993457 Housing arrangement for a fluid pump and tank |
| 02/07/1991 | DE3931699A1 Cold starting hydrostatic drive - involves heater in hydraulic oil tank |
| 01/30/1991 | EP0410824A1 Venting device of a pump inlet chamber |
| 01/20/1991 | CA2019443A1 Oil burner pump |
| 01/15/1991 | US4984509 Multistage cylinder actuator |
| 01/10/1991 | WO1991000428A1 Submersible motor-driven pump |
| 01/10/1991 | DE3921549A1 Tauchmotorpumpe Submersible pump |
| 12/27/1990 | EP0404321A2 Cam-driven flow system for use with analytical instruments |
| 12/18/1990 | CA1277867C Lubrication pump |
| 12/12/1990 | EP0402014A2 Fuel injection pumping apparatus |
| 12/12/1990 | EP0401741A1 Two stage primary dry pump |
| 12/05/1990 | EP0400496A1 Volumetric pump and method for volumetric pumping |
| 11/22/1990 | EP0398209A1 Reciprocating oil pump |
| 11/22/1990 | EP0398005A2 Pump |
| 11/20/1990 | US4971525 Hydraulic pump for hydraulically driven fan system |
| 11/14/1990 | CN1046961A Extra-high pressure electric oil pump |
| 11/04/1990 | CA2015982A1 Cam-driven flow system for use with analytical instruments |
| 10/10/1990 | EP0391288A2 Pumping apparatus |
| 09/20/1990 | DE3908777A1 Pump |
| 09/19/1990 | EP0293382B1 Submersible positive displacement piston pump |
| 08/26/1990 | WO1990009920A1 Apparatus for and method of managing liquid under pressure |
| 08/22/1990 | EP0383029A2 Pressure washer with bypass |
| 08/09/1990 | DE4002712A1 Radial piston pump with flanged cup - uses tapered thread to secure pressure limiting valve |
| 07/17/1990 | US4941807 Hydraulic power generating pack |
| 06/28/1990 | DE3941297A1 Housing for radial piston pump and chamber - is single component made as grey iron casting |
| 06/05/1990 | US4930994 Radial piston pump |
| 05/23/1990 | CN1042398A Multipurpose water pump |
| 05/17/1990 | DE3935116A1 Positive-displacement radial plunger pump - has plain bearing connected to pipe for oil to be pumped |
| 05/15/1990 | US4925372 Fuel pump for aircraft turbine engines |
| 05/09/1990 | CN2056945U Level-signaling apparauts on water isolating pump |
| 04/18/1990 | CN1007643B Submersible positive displacement piston pump |
| 04/17/1990 | CA1267810A1 Fuel/oil pump |
| 03/27/1990 | US4910964 Liquid cryogenic transfer system |
| 03/14/1990 | CN1040417A 旋转压缩机 Rotary compressor |
| 02/21/1990 | CN1006925B Multipurpose fluid drive piston pump |
| 02/14/1990 | EP0354867A2 Scroll type compressor |
| 01/10/1990 | CN2050885U Hand water uptaking centrifugal pump |
| 01/08/1990 | EP0261180A4 Anti-contamination flow control in liquids. |
| 12/27/1989 | EP0149667B1 Plural hydraulic pump system with automatic displacement control |
| 12/20/1989 | EP0288481B1 Radial piston pump |
| 12/20/1989 | CN1006174B Computer controlled metering pump |
| 12/13/1989 | CN2049278U Pneumatic hydraulic booster pump |
| 12/05/1989 | US4884943 Method and apparatus for pumping high-consistency fiber suspension |
| 11/30/1989 | DE3915781A1 Radial-piston pump |
| 11/28/1989 | US4883409 Pumping apparatus for delivering liquid at high pressure |
| 11/21/1989 | US4881877 Radial piston pump |
| 11/02/1989 | WO1989010489A1 Lift valve in a rotary screw machine |
| 11/01/1989 | CN2046937U Combined double-acting water pump |
| 10/10/1989 | US4872816 Evacuation pump assembly |
| 09/26/1989 | US4869648 Vane type rotary fuel pump |
| 09/12/1989 | US4865525 Metering pump |
| 09/07/1989 | DE3904349A1 Unit for producing hydraulic power |
| 09/06/1989 | EP0330845A2 Improved breast pump assembly having motor drive for use with manual piston pump |
| 08/31/1989 | DE3904874A1 Tandem pump |
| 07/25/1989 | US4850828 Plunger pump of quick pressure-rise type |
| 07/06/1989 | DE3840428A1 Radial-piston pump |
| 06/27/1989 | CA1256317A1 Submersible high pressure pump |
| 06/20/1989 | CA1256044A1 Manure vacuum wagon power assist auger |
| 06/13/1989 | CA1255538A1 Pressure transfer fluid heater |
| 05/03/1989 | EP0313774A1 Dual storing and transporting unit for two separated components of a two-component mixture |
| 05/02/1989 | US4826046 Multi-channel linear concentrate pump |
| 04/26/1989 | EP0312862A2 High pressure cleaning device |
| 04/25/1989 | US4824368 Oral hygiene appliances |
| 04/25/1989 | US4824335 Modular high pressure pump |
| 04/20/1989 | DE3833560A1 Pump arrangement |
| 04/20/1989 | DE3833558A1 Radial piston pump |
| 04/05/1989 | EP0309596A1 Pumping apparatus for delivering liquid at high pressure |
| 03/01/1989 | EP0110910B1 Hydrostatic transmission comprising radial piston pump and motor |
| 02/07/1989 | US4802826 Sealed, self-contained, liquid-cooled, gas compressor |
| 01/31/1989 | US4801049 Shrouded container/finger-depressible pump combination |
| 01/26/1989 | DE3822317A1 Radial piston pump |
| 01/24/1989 | US4799864 Hydro-pneumatic pumpsets |
| 01/18/1989 | CN1030392A Multi-channel linear concentrate pump |
| 01/11/1989 | EP0145738B1 Centrifugal pump |
| 01/04/1989 | EP0297464A2 Method and apparatus for pumping high consistency fiber suspension |
| 01/03/1989 | US4795063 Fluid discharging device |
| 12/28/1988 | CA1247571A Sealed, self-contained, liquid-cooled, gas compressor |
| 12/21/1988 | CN87215362U Automatic water supply and small size unit for deep well |
| 12/14/1988 | EP0295123A2 Multi-channel linear concentrate pump |
| 12/07/1988 | EP0293382A1 Submersible positive displacement piston pump. |
| 12/07/1988 | EP0143794B1 Fuel system bubble dissipation device |
| 12/06/1988 | US4789312 Lubrication pump with improved priming handle assembly |
| 11/23/1988 | EP0291625A1 Plural hydraulic pump system with automatic displacement control |
| 11/15/1988 | CA1244743A1 Method for transporting liquid substances by utilizing the potential energy of an operating fluid and liquid column machine for the implementation of the technique |
| 11/02/1988 | EP0288481A1 Radial piston pump. |
| 11/02/1988 | CN87102727A Computer controlled metering pump |