| Patents for F04D 13 - Pumping installations or systems (12,375) |
|---|
| 10/03/1990 | EP0390425A2 Fluid handling apparatus with shaft sleeve and extension |
| 10/03/1990 | CN2063177U Pneumatic submersible turbopump |
| 10/03/1990 | CN1045845A Fully dry submersible motor pump sectioned waterproof system |
| 10/02/1990 | US4961018 Enclosed pump motor and wiring thereof |
| 09/26/1990 | EP0389149A1 Molten metal pump |
| 09/25/1990 | US4958988 Motor driven pump for pumping viscous solutions |
| 09/25/1990 | CA1274418A1 Process and installation for circulating fluids by pumping |
| 09/12/1990 | EP0386703A2 Controller for underwater pump |
| 09/12/1990 | CN2061984U Gasoline engine flexible water pump |
| 09/11/1990 | US4955786 Drive device for pumps |
| 09/05/1990 | CN2061623U Mechanical tubing pump for submerged use |
| 08/30/1990 | DE3943200A1 In-tank fuel reservoir with reservoir fuel level control |
| 08/30/1990 | DE3905419A1 Reducing dead spaces in pumps - involves forming feed screws in rotors to circulate fluid |
| 08/29/1990 | EP0384903A1 A device for automatic circulation in a waste water pump station |
| 08/29/1990 | EP0384767A2 Torque coupling system |
| 08/28/1990 | US4952429 Separating pot for glandless electrical or magnetic drive assemblies |
| 08/24/1990 | CA2010798A1 Torque coupling system |
| 08/22/1990 | EP0383464A2 Pumps |
| 08/15/1990 | CN1009216B Loop pump |
| 08/14/1990 | US4948348 Immersion pump, especially for low-boiling fluids |
| 08/14/1990 | US4948346 Fuel pump mount for reduction of vibration transmission |
| 08/14/1990 | US4948342 Method and device for automatic circulation in a waste water pump station |
| 08/01/1990 | CN2059942U Warm-air circulating pump |
| 08/01/1990 | CN2059941U Light centrifugal pump |
| 07/31/1990 | US4944748 Magnetically suspended and rotated rotor |
| 07/19/1990 | DE4000793A1 SUbmerged pump with flange-mounted motor - incorporates guide delivering barrier fluid to lower shaft seal |
| 07/19/1990 | DE3901138A1 Circulation unit (circulating unit), in particular for photo-chemical developing devices |
| 07/18/1990 | EP0378251A2 Magnetically suspended and rotated impellor pump apparatus |
| 07/18/1990 | EP0277131B1 Loop pump |
| 07/18/1990 | CN2059466U Multifunctional electric immersible pump |
| 07/17/1990 | US4941801 Double water pump device |
| 07/11/1990 | CN2059191U High efficient low consumption oil-filled submersible pump motor |
| 07/10/1990 | CA1271508A1 Electrically-operated fuel pump |
| 07/06/1990 | CA2006052A1 Underwater station for pumping a well flow |
| 06/26/1990 | US4936759 Blood reservoir/pump |
| 06/20/1990 | EP0374020A1 High-pressure turbo pump providing a rocket motor with fuel |
| 06/19/1990 | US4934914 Portable motor pump |
| 06/12/1990 | US4932848 Pump unit |
| 06/12/1990 | US4932280 Coaxial drive shaft system with shearable section |
| 06/05/1990 | US4930996 Immersion pump assembly |
| 06/05/1990 | US4930982 Suction inlet bowl for a submersible pump |
| 05/31/1990 | DE3840296A1 Fuel conveyor unit |
| 05/31/1990 | DE3840273A1 Bearing plate for the drive motor of a conveyor pump |
| 05/31/1990 | DE3839752A1 Starting coupling (clutch) for a single-phase synchronous motor |
| 05/30/1990 | CN2057710U Bicycle self-sucking pump |
| 05/29/1990 | US4928771 Cable suspended pumping system |
| 05/23/1990 | CN2057473U 自动家用水泵 Automatic household pumps |
| 05/22/1990 | US4927407 Cardiac assist pump with steady rate supply of fluid lubricant |
| 05/22/1990 | US4927337 Magnetically driven pump |
| 05/16/1990 | CN2057240U Multifunction water pump |
| 05/16/1990 | CN2057239U Outlet device of oil-filled submersible electric pump |
| 05/16/1990 | CN2057238U Single-phase water cooled submersible pump |
| 05/16/1990 | CN2057237U Household miniature motor-operated water pump |
| 05/16/1990 | CN2057236U Miniature water-pumping device |
| 05/16/1990 | CN2057235U Magnetic driven centrifugal pump |
| 05/15/1990 | US4925375 Device for automatic circulation in a waste water pump station |
| 05/15/1990 | US4925367 Engine block water pump assembly |
| 04/25/1990 | EP0364706A2 Pump unit, especially for dish washing machines |
| 04/25/1990 | CN1041642A Shaft coupling with alignment mean |
| 04/24/1990 | US4919591 Washer pump for automobiles |
| 04/19/1990 | WO1990004279A1 Canned motor pump with pressure-proof casing |
| 04/19/1990 | WO1990004111A1 Bearing for the shaft of a canned motor pump |
| 04/19/1990 | WO1990004110A1 Filtering device for a canned motor pump |
| 04/19/1990 | WO1990004109A1 Can for canned motor pumps |
| 04/19/1990 | DE3834863A1 Spaltrohr fuer spaltrohrmotorpumpen Canned motor pumps for canned |
| 04/18/1990 | CN2056197U Low-noise miniature hot-water pump |
| 04/17/1990 | US4917052 Water pump apparatus in an internal combustion engine |
| 04/11/1990 | EP0363305A2 Combination motor endshield and pump housing |
| 04/05/1990 | DE3933154A1 Wellenkupplung Shaft coupling |
| 04/04/1990 | CN1007440B Countercycle drilling method with pump and its apparatus |
| 04/03/1990 | US4913631 Turbine-driven rotary pump |
| 03/28/1990 | CN2055196U Dual purpose machine for oxygen enhancement and water pumping |
| 03/22/1990 | WO1990002880A1 Cleanable centrifugal pump without stuffing box |
| 03/22/1990 | DE3922426A1 Magnetic coupling for rotary process pumps - has isolating bush contacting process medium and other side contacting atmos., and impeller and rotor |
| 03/22/1990 | DE3831457A1 Electric motor-driven fluid pump |
| 03/21/1990 | EP0359730A1 A device for automatic circulation in a waste water pump station |
| 03/21/1990 | EP0359136A1 Sealless centrifugal pump suited for cleaning |
| 03/21/1990 | EP0358843A1 Pumps for a hot water heating system |
| 03/21/1990 | CN2054848U Circulating pipe pump for domestic heating system |
| 03/21/1990 | CN2054847U Magnetic-driven centrifugal pump |
| 03/20/1990 | US4909704 Barrel pump |
| 03/14/1990 | EP0357913A2 Motor with a wet rotor |
| 03/14/1990 | CN2054498U Submersible electric pump |
| 03/07/1990 | CN2054097U Double-suction submerged pump with float |
| 03/07/1990 | CN2054096U Submerged pump made of corrosion-proof plastics |
| 03/07/1990 | CN2054095U Fully closed corrsion-proof centrifugal pump |
| 03/07/1990 | CN1040253A Suspended pump |
| 03/07/1990 | CN1007077B Vertical sealing device of double row seals |
| 03/01/1990 | DE3829500A1 Electric motor |
| 02/28/1990 | EP0355781A2 Submersible motor pump |
| 02/28/1990 | CN2053687U Portable oil pump |
| 02/21/1990 | CN2053265U Numerically controlled reversible motor/pump with high-voltage shielding |
| 02/21/1990 | CN2053264U Hydrodynamic mono-screw pump |
| 02/20/1990 | US4902204 Vertical submersible pump assembly |
| 02/07/1990 | EP0353346A2 Gab-pot for glandless electric or magnetic drive assemblies |
| 01/31/1990 | CN2052072U Pipeless submersible pump for gas-injection well |
| 01/31/1990 | CN2052071U Rotary discharge waterwheel |
| 01/31/1990 | CN2052070U Water-cooled automatic water pump |
| 01/31/1990 | CN2052069U Totally-enclosed corrosion-resisting centrifugal pump |
| 01/24/1990 | EP0351488A2 Canned pump having a high inertia flywheel |