| Patents for F04D 15 - Control, e.g. regulation, of pumps, pumping installations, or systems (4,967) |
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| 02/03/1993 | CN1068652A Method and apparatus for monitoring recirculation control system performance |
| 02/03/1993 | CN1068629A Recirculation valve |
| 01/21/1993 | WO1993001538A1 Recirculation valve |
| 01/21/1993 | CA2111843A1 Recirculation valve |
| 01/20/1993 | EP0523389A1 Drainage water pumping station |
| 01/12/1993 | US5178520 Double centrifugal pump with single casing and adapter insert |
| 01/06/1993 | CN1067714A Automatic speed-governing device for slag-slurry pump in heat power plant |
| 12/30/1992 | CN1067486A Reversible turbine pump for high drop infusion |
| 12/24/1992 | DE4128390C1 Rapid control appts. for fluid supply installation - has controller connected via digital communication line to pump motor regulators which provide setting signals for frequency converters |
| 12/23/1992 | WO1992022764A1 Method and apparatus for monitoring recirculation control system performance |
| 12/22/1992 | US5173019 Pump including secondary containment with alarm system |
| 12/22/1992 | US5172716 Recirculation valve |
| 12/16/1992 | EP0518593A1 Forced-circulation reactor with enhanced flow in natural circulation operation |
| 12/16/1992 | CN2125033U Water supply fire fighting dual purpose water pump controller |
| 12/16/1992 | CN1067099A Industrial pump against water hammer impact |
| 12/10/1992 | DE4118753A1 Impeller cut-in and cut-out mechanism for multistage pump - has piston with rod, carrier, springs and fluid guides, the piston having positive and/or flexible connection with carrier |
| 12/10/1992 | DE3546723C2 Centrifugal impeller pump for concentrated nitric acid |
| 12/09/1992 | CN2124332U Integrated numerically controlled boiler water supply pump set |
| 12/08/1992 | US5169286 Variable capacity centrifugal water pump with movable pressure chamber formed by impeller |
| 12/02/1992 | EP0515618A1 Double membrane anti-overflow device for electric pumps of windshield washers |
| 11/25/1992 | CN2122953U Casing water-supply pump for high buildings |
| 11/12/1992 | DE4205105A1 Centrifugal wind driven pump for raising water - has ascending tube supported by roller and sliding bearings |
| 11/10/1992 | US5162097 Steam cooled nuclear reactor with bi-level core |
| 11/10/1992 | US5161958 Valve device for automatic circulation in a waste water pump station |
| 11/04/1992 | EP0511352A1 Pump for windshield washer provided with level sensing device |
| 11/03/1992 | US5160244 Pump system operable by variable-speed control |
| 11/03/1992 | US5160216 Drainage distribution amount determining method and drainage system |
| 10/29/1992 | WO1992018775A1 Self-priming rotary pump |
| 10/28/1992 | CN2120205U Flow regulating centrifugal type impurity pump |
| 10/27/1992 | US5159620 Variable pitch propeller apparatus |
| 10/22/1992 | DE4113029A1 Selbstansaugende kreiselpumpe zur foerderung von fluessigkeiten in der naehe ihres siedepunktes Self-priming centrifugal pump for pumping liquids near the city its boiling point |
| 10/20/1992 | US5156535 High speed whirlpool pump |
| 10/20/1992 | CA1308959C Centrifugal pump |
| 10/14/1992 | CN2118842U Flow adjustable vorter pump |
| 10/13/1992 | US5154570 Vertical shaft pump |
| 10/07/1992 | EP0506898A1 Apparatus for measuring the change of position of a rotor. |
| 10/07/1992 | CN2118188U Automatic water supply controller for water pump |
| 10/07/1992 | CN2118186U Flow adjustable centrifugal type anticorrsion pump |
| 10/07/1992 | CN2118183U Flow adjustable centrifugal oil pamp |
| 10/07/1992 | CN2118182U Flow adjustable centrifugal water cleaning pump |
| 10/06/1992 | US5152670 Sump system |
| 09/30/1992 | CN2117483U Flow regulating pump for petroleum process |
| 09/30/1992 | CN2117482U Automatic controller of miniature water pump |
| 09/29/1992 | US5151017 Variable speed hydromassage pump control |
| 09/29/1992 | US5151016 Liquid pump responsive to temperature |
| 09/23/1992 | EP0505009A1 Pump protection system |
| 09/23/1992 | CN2116794U Adjustable flow deep-well pump |
| 09/23/1992 | CN2116793U Adjustable flow immersed oil pump |
| 09/23/1992 | CN2116792U Adjustable flow submersible pump |
| 09/23/1992 | CN2116791U Adjustable flow mixed flow pump |
| 09/23/1992 | CN1018376B Alarm for water failure of circulating pump |
| 09/17/1992 | DE4109510A1 Revolution speed controller for fan or centrifugal pump motor - uses control logic actuating semiconductor or mechanical switches for transformer tap-offs |
| 09/15/1992 | US5147149 Tension leg dewatering apparatus and method |
| 09/08/1992 | US5145323 Liquid level control with capacitive sensors |
| 09/08/1992 | US5145322 Deep well water pump system |
| 09/08/1992 | US5145314 Low drag pitot pump and method of operating same |
| 09/07/1992 | WO1992015784A1 Pumping station in a water flow system |
| 09/07/1992 | CA2105562A1 Pumping station in a water flow system |
| 09/02/1992 | EP0501109A1 Centrifugal pump driven by a synchronous motor |
| 09/02/1992 | EP0501012A1 Drainage pump |
| 09/02/1992 | CN2114716U Water pump comprehensive protector |
| 09/01/1992 | US5143690 Fuel-assembly inversion for dual-phase nuclear reactors |
| 08/26/1992 | CN2114046U Numerical-control booster metering injector pump |
| 08/25/1992 | US5141390 Vertical axis centilevered pump provided with a stabilizing by-pass flow |
| 08/18/1992 | US5139735 Reactivity control system |
| 08/13/1992 | DE4103863A1 Radial or half axial impeller pump - has adjustable impeller blade dia. via axial movement of regulator or radial blade movement |
| 08/13/1992 | DE4103556A1 Min. vol. valve with housing - incorporates valve seating with closure piece between inlet and outlet, with annular slide plate and by=pass |
| 08/12/1992 | CN1017824B Pumping plant |
| 08/11/1992 | US5137433 Aquarium power head with integral muffler |
| 08/04/1992 | US5135361 Pumping station in a water flow system |
| 08/04/1992 | US5135359 Emergency light and sump pump operating device for dwelling |
| 08/04/1992 | US5135353 Variable pressure pitot pump with reduced heating of pumped fluid |
| 07/29/1992 | CN2111388U Automatic drainage device |
| 07/22/1992 | CN1062958A Changeable operating mode submersible pump when pulled |
| 07/15/1992 | CN2110106U Flow control-adjusting device for high-pressure pump |
| 07/14/1992 | US5130078 Reactivity control system and method |
| 07/14/1992 | US5129795 Motor driven pump |
| 07/14/1992 | US5129264 Centrifugal pump with flow measurement |
| 07/09/1992 | WO1992011150A1 Double membrane anti-overflow device for electric pumps of windshield washers |
| 07/08/1992 | CN2109466U Automatic working device for spare pump |
| 07/07/1992 | US5127792 Centrifugal pump having magnet bearing |
| 06/23/1992 | US5124115 Bwr series pump recirculation system |
| 06/09/1992 | US5120494 Reactor-core isolation cooling system with dedicated generator |
| 06/09/1992 | US5120493 Forced-circulation reactor with enhanced natural circulation |
| 06/09/1992 | US5120489 Hydraulic control rod drive |
| 05/29/1992 | WO1992008627A1 Pump for windshield washer provided with level sensing device |
| 05/26/1992 | US5116567 Nuclear reactor with bi-level core |
| 05/21/1992 | DE4036365A1 Ventilation valve for cooling chamber - has three superimposed valve chambers with valve seatings and balls |
| 05/06/1992 | EP0484305A2 High speed whirlpool pump |
| 05/06/1992 | EP0484209A1 Retractable axial bearing with flexible membrane for a rotary machine |
| 05/06/1992 | CN2103676U Auto-turning off controller for idle of water pump |
| 05/05/1992 | US5110535 Turbine-driven control rod drive |
| 05/05/1992 | US5110265 Fuel pump |
| 04/22/1992 | CN2102390U Float type automatic controller of electric water pump |
| 04/07/1992 | US5102297 Centrifugal pump with cavitation reducing propeller |
| 04/02/1992 | WO1992005402A1 Apparatus for measuring the change of position of a rotor |
| 03/31/1992 | US5100343 Electrical connector for float controlled pumps |
| 03/29/1992 | WO1992006302A1 Pumps |
| 03/29/1992 | CA2092913A1 Pumps |
| 03/24/1992 | US5098255 VAriable geometry pitot pump |