| Patents for F04D 3 - Axial-flow pumps (1,557) |
|---|
| 04/13/1994 | EP0591379A1 Arrangement of a submersible pump. |
| 03/31/1994 | WO1994006486A1 Heart pump |
| 03/31/1994 | CA2144543A1 Heart pump |
| 03/22/1994 | US5295810 Apparatus for compressing a fluid |
| 03/22/1994 | US5295568 Passenger conveyor and treadboard construction for passenger conveyor |
| 03/10/1994 | DE4230094A1 Modular neutralisation unit for effluent treatment - which is self contained to prevent leakage of treatment materials to the surrounding environment |
| 03/02/1994 | EP0396575B1 Single-stage axial flow blood pump |
| 02/22/1994 | US5289068 Two-stage submersible propulsor unit for water vehicles |
| 02/09/1994 | EP0581997A1 Screw type water flow generating apparatus |
| 01/25/1994 | US5281086 Pump for viscous fluids |
| 01/19/1994 | CN2153658Y Minisize high-lifting small flow screw type axial-flow pump |
| 01/19/1994 | CN1080982A Tubing pump |
| 01/13/1994 | DE4214169A1 Waste water neutralising assembly |
| 01/04/1994 | US5275238 For use in a fluid production line |
| 12/16/1993 | DE4322861A1 Axial delivery dust extraction unit - has hollow drive shaft and separately contained cooling air system |
| 12/10/1993 | CA2075322A1 Screw type water flow generating apparatus |
| 11/24/1993 | EP0570561A1 Hydrojet |
| 11/03/1993 | EP0567838A2 Neutralisation apparatus |
| 11/03/1993 | EP0567688A1 Fluid conveying device, particularly a fan |
| 10/26/1993 | CA2002384C Fluidizing centrifugal pump |
| 10/26/1993 | CA1323467C Magnetically suspended rotor axial flow blood pump |
| 10/20/1993 | CN1022505C Non variable capacitance type rotary machine |
| 10/20/1993 | CN1022504C Integrated centrifugal pump and motor |
| 07/21/1993 | EP0551435A1 Integrated centrifugal pump and motor. |
| 06/24/1993 | WO1993011998A1 Hydrojet |
| 06/17/1993 | DE4140881A1 Wasserstrahlantrieb Water jet propulsion |
| 05/25/1993 | US5213474 Pump unit |
| 05/19/1993 | EP0541883A1 Pump driven by reaction turbine |
| 05/15/1993 | CA2078849A1 Motor-driven pump with reaction turbine |
| 05/11/1993 | US5209650 Integral motor and pump |
| 04/27/1993 | US5205721 Split stator for motor/blood pump |
| 04/15/1993 | WO1993007391A1 Pump |
| 04/14/1993 | CN1070990A Conical spiral shaft pump |
| 04/06/1993 | US5199848 Portable water driven pump |
| 03/30/1993 | US5197851 Axial flow turbopump with integrated boosting |
| 03/04/1993 | WO1993004288A1 Pump or compressor unit |
| 03/04/1993 | CA2116001A1 Pump or compressor unit |
| 03/03/1993 | CN2127750Y Helicoidal pump |
| 02/17/1993 | EP0527227A1 Pump having spiral blades |
| 01/14/1993 | DE4120846A1 Equipment for pretreatment of strongly contaminated water - involves worm pump delivering water from input to a higher located duct and having extension in which the worm works |
| 01/07/1993 | WO1993000260A1 Arrangement of a submersible pump |
| 12/30/1992 | CN1067486A Reversible turbine pump for high drop infusion |
| 12/23/1992 | CN1019597B Differential pressure piston type balance unit of axial forces for multistage pump |
| 12/10/1992 | WO1992021388A1 Pump |
| 11/12/1992 | DE4114989A1 Electrically driven rotation pump e.g. for fuel - has successive armature rings with central flow channel for pumped medium |
| 11/04/1992 | CN1018943B Single-suction opposed multi-stage centrifugal submersible pump |
| 10/07/1992 | CN2118184U Non-shaft gland straight barrey type axial-flow pump |
| 09/03/1992 | WO1992014928A1 Split stator for motor/blood pump |
| 08/29/1992 | WO1992015788A1 Pump having spiral blades |
| 08/26/1992 | CN2114044U Energy-saving efficient axial-flow pump |
| 08/18/1992 | US5139391 Rotary machine with non-positive displacement usable as a pump, compressor, propulsor, generator or drive turbine |
| 07/08/1992 | EP0494008A1 Turbopump with axial throughflow booster |
| 06/17/1992 | CN2107548U Pump head theft-proof deep-water pump |
| 06/17/1992 | CN2107547U Volute axial-flow pump device for vacuum salt making |
| 06/16/1992 | US5122038 High density grout pump |
| 06/11/1992 | DE4139134A1 Hydrodynamic screw for energy conversion - uses changes in water supply to regulate energy output |
| 06/10/1992 | CN1061836A Integrated centrifugal pump and motor |
| 06/09/1992 | CA1302829C Single-stage axial flow blood pump |
| 06/03/1992 | CN2106249U Water pump for fishery |
| 05/20/1992 | CN2104958U Verticle axial pump system |
| 05/12/1992 | US5112292 Providing circulatory assistance to the heart |
| 05/06/1992 | EP0483298A1 Self-priming pumping method and device |
| 05/06/1992 | CN2103673U Multipurpose asynchronous motor axial-flow pump |
| 04/16/1992 | WO1992006301A1 Integrated centrifugal pump and motor |
| 04/15/1992 | EP0480501A1 Down hole pump with compressor |
| 04/15/1992 | EP0480102A1 Helifoil pump |
| 04/11/1992 | CA2053021A1 Apparatus for compressing a fluid |
| 04/07/1992 | US5102308 Axial flow pump |
| 04/01/1992 | CN2100512U Movable mosquito-dispelling axial fan |
| 03/11/1992 | CN2098569U Axial-flow pump with internal output |
| 02/18/1992 | US5088899 Pump with drive motor |
| 01/29/1992 | EP0468877A1 Apparatus for multiphase pumping or compression and its application |
| 01/28/1992 | US5084189 Method and apparatus for separating fluids having different specific gravities |
| 01/15/1992 | CN2093251U Long axis water pump |
| 01/07/1992 | US5079488 Electronically commutated motor driven apparatus |
| 01/07/1992 | CA2003534C Attachment for an oil well screw pump system |
| 12/17/1991 | US5073082 Hydraulic screw pump |
| 12/10/1991 | US5071314 Method and fish pump for pumping up fish from a cod end |
| 11/27/1991 | CN1056557A Differential pressure piston type balance unit of axial forces |
| 11/05/1991 | US5062778 Helical blade type compressor with thrust loss compensation |
| 10/16/1991 | CN1055413A Single-suction opposed high-lift submersible pump |
| 10/02/1991 | CN2085865U Top centrifugal pump |
| 09/25/1991 | CN1054833A Intensifying screen for neutron photography |
| 09/17/1991 | US5049134 Sealless heart pump |
| 09/05/1991 | WO1991013258A1 Self-priming pumping method and device |
| 09/04/1991 | EP0445046A1 Rotary screw pump, motor-pump, reservoir and machine equipped with such a pump |
| 08/29/1991 | CA2036984A1 Screw-type rotary dump, motor dump, container and apparatus equipped with said pump |
| 08/20/1991 | US5040944 Pump having impeller rotational about convoluted stationary member |
| 08/14/1991 | DE4104282A1 Pump designed to handle wet cement - has screen conveyor connected to serpentine rotor mounted in stator |
| 08/14/1991 | CN2082775U Axial flow pump |
| 08/08/1991 | WO1991011618A1 Pump with funnel shroud |
| 07/23/1991 | US5033451 Fluid flywheel |
| 07/04/1991 | DE3942672A1 Marine craft jet drive - has pump with two rotors rotating in opposite directions |
| 06/05/1991 | EP0246247B1 Manure vacuum wagon power assist auger |
| 05/21/1991 | US5017087 Multi-functional rotary hydraulic machine systems |
| 05/21/1991 | CA1284285C Device for pumping highly-viscous material, in particular thick oil |
| 05/15/1991 | EP0427145A1 Pump with driving motor |
| 05/02/1991 | DE3935743A1 Rotary pump with axial flow impeller - has centrifugation adapted for handling of contaminated water |
| 04/30/1991 | US5011372 Aeration apparatus for pond |
| 04/10/1991 | CN2074832U Light agricultural axial flow pump |