Patents
Patents for F04D 7 - Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts (4,105)
01/2001
01/11/2001WO2001002724A1 Blood pump having a magnetically suspended rotor
01/11/2001WO2000057056A3 Pump assembly and related components
01/11/2001CA2377934A1 Blood pump having a magnetically suspended rotor
01/03/2001CN2413062Y Bracket-free pump with rear door
01/02/2001US6168753 Inert pump leg adapted for immersion in molten metal
01/02/2001US6167960 Protection of downwell pumps from sand entrained in pumped fluids
01/02/2001US6167724 Pump
12/2000
12/28/2000WO2000079133A1 Liquid pump, especially for delivering fuel
12/27/2000CN2412111Y Improved mixed pump
12/21/2000DE19927789A1 Fluid pump for supplying fuel has an impeller fitted with a blade and driven to rotate in a pump chamber bounded in the direction of the impeller's rotational axis by partitioning components.
12/14/2000WO2000074812A1 Degassing centrifugal apparatus, process for pumping and degassing a fluid and process for producing paper or board
12/14/2000WO2000074811A1 Degassing centrifugal apparatus with energy recovery, process for degassing a fluid and process for producing paper or board
12/13/2000CN1059490C Circulation apparatus for supply of cooling water to sealing portion of rotary shaft of pump
12/12/2000US6158959 Pump impeller
12/06/2000EP0762921B1 Dual impeller pump
12/06/2000CN2409359Y Magnetic driven centrifugal pump
11/2000
11/29/2000CN2408276Y Two screw transport pump for high thickness medium
11/28/2000US6152691 Pumps for pumping molten metal
11/28/2000US6152689 Self-priming type cetrifugal pump
11/21/2000US6149383 Rotating machine
11/16/2000DE19920243A1 Non jamming sludge pump with the internal diameter of the pump housing tapering to a wider output and with a correspondingly tapering impeller
11/16/2000DE10015671A1 Fuel pump for vehicle has a modular pumping unit that is adapted for different vehicles and that fits into a pump holder fitted into a fuel tank
11/07/2000US6142736 Pump impeller
11/07/2000CA2058532C Mineral processing screen separator
11/06/2000CA2299735A1 Centrifugal pump with solids cutting action
11/02/2000WO2000064701A1 Loading device at a vakuumtanker vehicle
10/2000
10/31/2000US6139606 For degassing gas-containing fluid media in a container with the apparatus including a centrifugal pump for pumping the gas-containing fluid medium from the container, an ejector including a suction side, an ejector inlet for a drive fluid
10/31/2000US6139260 Pump having a pump housing with one or more feeding grooves
10/25/2000CN2402843Y Corrosion-proof wear-resistant submersed pump
10/25/2000CN2402842Y Centrifugal water pump for draining
10/25/2000CN2402841Y Mud pump
10/11/2000CN2400608Y Graphite anti-corrosion liquid pump
10/10/2000US6129529 Liquid petroleum gas submersible electric motor driven pump and drive coupling therefor
10/10/2000US6129523 Air purging circulator
10/05/2000DE10000112A1 Pump unit recovering floating surface oil has telescopic inlet assembly with small float, whilst pump is externally-supported, hence forming especially compact and convenient unit
10/04/2000CN2399535Y Graphite corrosion-proof centrifugal pump
10/04/2000CN1057149C Mechanical power transmission system having improved lubricant circulation centrifugal pump
10/03/2000US6125883 Floor mounted double containment low profile sump pump assembly
09/2000
09/28/2000WO2000057056A2 Pump assembly and related components
09/26/2000US6123523 Gas-dispersion device
09/21/2000DE19910813A1 Strömungsmaschinenrad und Verwendung desselben The same Strömungsmaschinenrad and use
09/20/2000CN2397286Y Sand suction pump with opening vane wheel
09/19/2000US6120252 Gas separation control in a centrifugal pump/vacuum pump
09/13/2000EP1035329A2 Turbomachine impeller and its application
09/13/2000CN2396213Y Double-sucking type impurity pump
09/13/2000CN2396212Y 灰浆泵 Mortar pump
09/06/2000CN2395065Y Struture improved pump
09/06/2000CN2395064Y Broken body claw type centrifugal sand suction pump
09/02/2000CA2276470A1 Spray assembly for molten metal
08/2000
08/23/2000CN2392936Y Split-type rubber protective sleeve
08/23/2000CN2392932Y High wear-resistant swirl-flow pump
08/22/2000US6106230 Centrifugal pump
08/22/2000US6106226 High velocity prestressed shaft for degasser or pumping application in molten metal
08/09/2000CN2391035Y Acid and alkali-resisting self priming pump
08/09/2000CN2391034Y Single motor driving single pump positive and negative circulating sand pump
08/09/2000CN1262394A Blade wheel of slurry pump and its manufacture method
08/04/2000CA2298038A1 Pumps for pumping molten metal
08/02/2000EP1024291A2 Multistage pump for supplying semi-solid material
08/02/2000CN2390035Y Wear- and corrosion-resistant ceramic pump
08/02/2000CN2390034Y Impurities pump
08/02/2000CN2390033Y Impurities pump
07/2000
07/27/2000WO2000043677A1 Method and apparatus for pumping a material and a rotor for use in connection therewith
07/25/2000US6093000 Molten metal pump with monolithic rotor
07/19/2000EP1019635A1 Molten metal pump with monolithic rotor
07/19/2000CN2388377Y Pre-shearing device of shear pump
07/12/2000CN1259626A Directly joined type hot water circulation pump
07/12/2000CN1054418C Turbo-machine with reduced attrition
07/11/2000US6086331 Safety pumping system for hazardous environments using pressurized gas in a plurality of chambers
07/05/2000CN2386219Y 化工离心泵 Chemical centrifugal pump
07/04/2000US6082965 Advanced motor driven impeller pump for moving metal in a bath of molten metal
07/04/2000CA2190165C Dual impeller pump
06/2000
06/29/2000WO2000037803A1 Apparatus and method for mixing drill cuttings in a tank and transferring them therefrom
06/28/2000EP1012477A1 Bearing and seal-free blood pump
06/28/2000CN2385109Y Seat type mud pump
06/27/2000CA2086554C Rotary disc pump
06/20/2000US6076753 Agitated slurry pump box for oil sand hydrotransport
06/15/2000WO2000034663A1 Improvements relating to froth pumps
06/14/2000CN2382862Y Safety gas sealed multi stage under liquid pump
06/13/2000US6074180 Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method
06/13/2000US6074166 Pump
06/08/2000WO2000032256A1 Blood pump without bearing
06/08/2000CA2349483A1 Blood pump without bearing
06/07/2000EP0925451A4 Implantable electric axial-flow blood pump with blood-cooled bearing
06/06/2000US6071074 Advanced motor driven impeller pump for moving metal in a bath of molten metal
05/2000
05/31/2000EP1003970A1 Improved rotor for blood pump
05/31/2000CN2380725Y Leakage-free centrifugal pump
05/18/2000WO2000028219A1 Shaft and post assemblies for molten metal pumping apparatus
05/11/2000WO2000026542A1 Compensator
05/02/2000US6056520 Magnetic drive pump having encased magnets for pumping very low temperature fluids
04/2000
04/27/2000DE19949615A1 Fluidpumpenkammer mit Kontaminationskontrolle Fluid pump chamber with contamination control
04/25/2000US6053698 High capacity slurry pump
04/20/2000WO2000022303A1 Pulp pump
04/19/2000CN1251156A Centrifugal liquid pulp with internal gas injection
04/14/2000CA2285797A1 Fuel pump chamber with contamination control
04/12/2000CN1051291C Grooved disk apparatus
04/05/2000CN2372487Y Direct connecting hot water circulating pump
04/05/2000CN2372486Y Clutch type sealing corrosion-resisting centrifugal pump
03/2000
03/29/2000CN2371374Y Sand-prevention wear-proof oil-submersible multi-stage centrifugal pump
03/29/2000CN2371373Y Special ceramic wear-resisting fan
03/29/2000CN1050881C Pump impeller and centrifugal slurry pump incorporating same
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