| Patents for F04D 13 - Pumping installations or systems (12,375) |
|---|
| 07/13/1994 | EP0605771A1 Device for switching on and off a submersible motorpump |
| 07/13/1994 | CN1025450C Cooling apparatus for power machine |
| 07/06/1994 | EP0605071A1 Tubing with threaded tubes and a connection sleeve |
| 07/06/1994 | EP0604762A2 Synchronous electric motor, particularly for submersible pumps, and pump including the motor |
| 07/06/1994 | CN2171021Y Pedal high efficient light water pump |
| 07/06/1994 | CN1089064A Submersible motor switch protector |
| 07/05/1994 | US5326344 Magnetically suspended and rotated rotor |
| 06/29/1994 | EP0604390A2 Method for feeding a multiple pressure steam generator and feed pump |
| 06/29/1994 | CN2170395Y Dual-purpose mechanoelectric immersible pump |
| 06/29/1994 | CA2112424A1 Pipeline with threaded pipes and a sleeve connecting the same |
| 06/28/1994 | US5324179 Motor pump with a treating liquid circulation system |
| 06/28/1994 | US5324177 Sealless rotodynamic pump with radially offset rotor |
| 06/28/1994 | US5324171 Pump assembly including a hermetically sealed switch capsule for housing a magnetically actuated switch |
| 06/28/1994 | US5324166 Apparatus and method for pumping a liquid |
| 06/23/1994 | WO1994014223A1 Motor bearing with rotatable guide |
| 06/23/1994 | WO1994013955A1 Fluid pump with improved magnetically levitated impeller |
| 06/22/1994 | CN2169711Y Cable protector for electric submerged oil pump |
| 06/21/1994 | US5322413 Centrifugal pump for liquids, in particular for blood in extracorporeal circulation |
| 06/16/1994 | DE4242021A1 Electric fluid pump system - with pump housing used as base for simple plugged watering system and includes intake opening |
| 06/14/1994 | US5321328 Elongated electric motor |
| 06/08/1994 | CN2168104Y Axial-force balanced deep-well pump |
| 06/01/1994 | EP0599204A1 Submersible pump assembly |
| 06/01/1994 | CN2167222Y Oil-filled type submersible electric motor voltage regulating device |
| 06/01/1994 | CN2167221Y Pumping installation |
| 05/31/1994 | US5317579 Laser pump |
| 05/31/1994 | US5316449 Motor-driven pump with reaction turbine |
| 05/31/1994 | US5316440 Blood pump apparatus |
| 05/26/1994 | WO1994011634A1 Hollow shaft fluid drive device |
| 05/26/1994 | DE4238925A1 Electric motor with cooled outer wall - consisting of metallic material with which brushes of one polarity arranged on inner side are in direct contact |
| 05/25/1994 | EP0598697A1 Internal combustion engine |
| 05/25/1994 | EP0598500A1 Pump with axial dry gas seal |
| 05/25/1994 | CN2166264Y Immersible pump without pump pipe |
| 05/24/1994 | US5314302 Centrifugal pump for supplying hot liquid from a container |
| 05/24/1994 | CA1329730C Power recovery pump turbine |
| 05/19/1994 | DE4238132A1 Water circulation pump for automobile - has split sleeve pot supporting pump shaft in opposition to drive shaft of electric motor |
| 05/18/1994 | EP0597157A1 Liquid pump |
| 05/18/1994 | EP0487538B1 Heating device for the seating compartment of motor vehicles |
| 05/18/1994 | CN2165267Y High-efficiency water micropump |
| 05/18/1994 | CN2165266Y Magnetic driving chemical centrifugal pump |
| 05/11/1994 | WO1994010449A1 Sludger |
| 05/11/1994 | WO1994009893A1 Submersible motor unit |
| 05/11/1994 | DE4304150C1 Supply unit for water - comprises self-aspirating motor pump unit to which is connected hydraulic accumulator with inner membrane and control for complete unit |
| 05/05/1994 | DE4237050A1 Bohrlochpumpe Borehole pump |
| 05/03/1994 | US5308229 Pump having an internal gas pump |
| 04/28/1994 | WO1994009274A1 Sealless rotodynamic pump |
| 04/27/1994 | EP0398929B1 Radio frequency suppression for fuel pump |
| 04/26/1994 | US5306124 Slurry pump and seal system |
| 04/19/1994 | US5304877 Rotor of a canned motor for a canned motor pump |
| 04/19/1994 | US5304034 Method for constructing a pumping installation |
| 04/13/1994 | EP0591379A1 Arrangement of a submersible pump. |
| 04/12/1994 | US5303275 Forced-circulation reactor with fluidic-diode-enhanced natural circulation |
| 04/12/1994 | US5302091 Magnetically driven centrifugal pump |
| 04/07/1994 | DE4232939A1 Starting assistance for hydraulic pump independent of rotation direction - providing free movement between impeller arranged in pump chamber and sync. motor rotor |
| 04/05/1994 | CA2063077C Well operated electrical pump suspension method and system |
| 03/31/1994 | WO1994006486A1 Heart pump |
| 03/31/1994 | DE4232361A1 Sensitive liq. transport device - provides suction lift action e.g. in biological clarification plant |
| 03/31/1994 | CA2144543A1 Heart pump |
| 03/29/1994 | US5297940 Sealless pump corrosion detector |
| 03/29/1994 | US5297927 Vertical shaft type pump |
| 03/23/1994 | EP0285663B1 Pump |
| 03/23/1994 | CN2159465Y Magnetically driving pump with rear open |
| 03/22/1994 | US5295810 Apparatus for compressing a fluid |
| 03/17/1994 | WO1994005914A1 Orbiting fluid pump |
| 03/17/1994 | DE4230306A1 Immersion pump powered by electric drive motor - with non-return valve cooperating with base suction opening to maintain required liquid level within pump |
| 03/17/1994 | DE4226664A1 Rotary pressure and suction pump with thermodynamic centrifugal rotor - converts thermal water energy into kinetic energy, by thermodynamic effect in path-time constant |
| 03/16/1994 | EP0586799A1 Cable terminal for a pump |
| 03/16/1994 | EP0466888B1 Impeller pump of cleaning liquid for motor vehicles |
| 03/16/1994 | CN2158934Y Axial balancing submerged pump |
| 03/10/1994 | DE4230094A1 Modular neutralisation unit for effluent treatment - which is self contained to prevent leakage of treatment materials to the surrounding environment |
| 03/09/1994 | CN2158459Y Vertical self-suction centrifugal pump |
| 03/09/1994 | CN2158458Y Pump for pumping oil to transformer |
| 03/03/1994 | WO1994004789A1 Downhole tandem pump system |
| 03/02/1994 | CN2158002Y Water lifting apparatus for submersible motor pump |
| 03/01/1994 | US5290157 Clamp for attaching an aquarium power head |
| 02/24/1994 | DE4227249A1 Pot pump for fluids - has pump housing comprising cast suction connection, cast pressure connection, and intervening welded pipe section, the two connections having feet, to which the pump housing is fixed on a |
| 02/23/1994 | CN2157340Y Electric submersible pump antirotation device for oil well |
| 02/23/1994 | CN2157339Y Simple single-stage centrifugal water pump |
| 02/22/1994 | US5289068 Two-stage submersible propulsor unit for water vehicles |
| 02/22/1994 | US5288215 Integral motor centrifugal pump |
| 02/22/1994 | US5288213 Pump having an internal pump |
| 02/17/1994 | WO1994003731A1 Centrifugal blood pump |
| 02/17/1994 | DE4318158A1 Coolant pump for vehicle IC engine - has vented leakage chamber with lead-off channel to suction side of pump |
| 02/17/1994 | CA2141327A1 Centrifugal blood pump |
| 02/16/1994 | CN2156321Y Miniature oil submerged pump |
| 02/16/1994 | CN2156320Y Portable discharging pump for container liquid |
| 02/15/1994 | US5286163 Molten metal pump with filter |
| 02/09/1994 | EP0581997A1 Screw type water flow generating apparatus |
| 02/09/1994 | CN2155448Y High-lift miniature submerged oil pump |
| 02/08/1994 | US5284424 Osmotic water purification pumping system with flush valve |
| 02/03/1994 | DE4322058A1 Distribution unit for electrical energy with mechanical storage - provided by use of flywheel that is operated by motor using various forms of energy such as solar or wind energy |
| 02/03/1994 | DE4224853A1 Packing for safe transit of pump - uses three profiled shells of environmentally friendly material for total enclosure of pump |
| 02/02/1994 | EP0581173A1 Fuel supply device |
| 02/01/1994 | US5282727 Aquarium power head with integral muffler |
| 02/01/1994 | US5282446 Rotary pump assemblies |
| 01/26/1994 | CN2154366Y Rotary watercart |
| 01/25/1994 | US5280766 Subsea pump system |
| 01/19/1994 | CN2153660Y Mining direct-connected water pump |
| 01/19/1994 | CN1080982A Tubing pump |
| 01/18/1994 | US5279503 Cooling system for a self-propelled vehicle |
| 01/13/1994 | DE4214169A1 Waste water neutralising assembly |