Patents for F04D 9 - Priming; Preventing vapour lock (1,858)
11/1981
11/25/1981EP0040569A1 Self-priming regenerative pump for pumping liquefied gas out of a buried tank
06/1981
06/30/1981US4275988 Axial or worm-type centrifugal impeller pump
06/23/1981CA1103551A1 Apparatus for automatically water charging a centrifugal fire pump
05/1981
05/26/1981US4269567 Mud degasser pump
04/1981
04/28/1981US4264284 Self-priming centrifugal pump and safety installation therefor
04/22/1981EP0027179A1 Pump with degasser
03/1981
03/17/1981US4256436 Self-priming pump
03/10/1981US4255079 Self-priming system for pumps
03/10/1981CA1097214A1 Check valve for fluid-producing wells
02/1981
02/17/1981US4251240 Pump valve assembly
02/10/1981US4249865 Control means for preventing water overflow into vacuum type priming pump
10/1980
10/28/1980CA1088374A1 Self priming centrifugal pump
08/1980
08/19/1980US4218196 Motor fuel pump
08/05/1980US4215975 Sump pump with air column therein when pump is not operating
06/1980
06/24/1980US4209282 Pump assembly
06/10/1980CA1079158A1 Method and system for transferring liquid media
06/03/1980US4205947 Method and apparatus for the ventilation of a fuel supply pump
05/1980
05/27/1980US4204813 LNG Pump anti-slam device
05/13/1980US4202654 Wear resistant self lubricating centrifugal pump
05/06/1980CA1076885A1 Centrifugal pump with means for precluding airlock
04/1980
04/30/1980EP0010464A1 Method and device for starting a cryogenic-liquid pump
03/1980
03/25/1980US4194893 For fluid materials containing entrained gas pockets
02/1980
02/26/1980US4190400 Integral pump and drive shaft assembly
01/1980
01/15/1980US4183721 Apparatus for automatically water charging a centrifugal fire pump
10/1979
10/16/1979CA1064366A1 Fluid transfer systems and valves therefor
08/1979
08/14/1979CA1060265A1 Variable output centrifugal pump
07/1979
07/17/1979CA1058447A1 Corrosion and abrasion resistant centrifugal pump
05/1979
05/08/1979US4153385 Self-drawing centrifugal pump
04/1979
04/03/1979US4147474 Method and system for transferring liquid media
03/1979
03/06/1979US4142839 Centrifugal pump for high V/L performance
12/1978
12/12/1978US4129402 Self-priming centrifugal trash pump
10/1978
10/03/1978US4118142 Dual-pump coupling
09/1978
09/26/1978US4116582 Impeller type fluid pump
09/12/1978CA1038231A1 centrifugal pumps
06/1978
06/13/1978US4094613 Variable output centrifugal pump
05/1978
05/09/1978US4087994 Centrifugal pump with means for precluding airlock
03/1978
03/21/1978US4080104 Wet-dry vacuum apparatus with pump means for discharging liquid therefrom
02/1978
02/07/1978US4072481 Device for separating multiple phase fluid systems according to the relative specific gravities of the phase
01/1978
01/10/1978US4067663 Sewage pump priming system
01/03/1978US4066386 Priming systems for pumps
11/1977
11/08/1977US4057361 Centrifugal pump
10/1977
10/04/1977US4052133 Corrosion and abrasion resistant centrifugal pump
07/1977
07/19/1977US4036427 Combination pitot pump and centrifugal separator
07/12/1977US4035104 Self-priming centrifugal pump
06/1977
06/14/1977US4029438 Well point pumping system and pump assembly therefor
03/1977
03/22/1977US4013383 Vertical shaft impeller pump apparatus
03/22/1977US4013053 Fuel pump
01/1977
01/11/1977US4002936 Electric submersible pump
11/1976
11/02/1976US3989070 System for and method of carrying out wash-draining, after-draining and the like
09/1976
09/21/1976US3981628 Pump
09/21/1976US3981626 Down hole pump and method of deep well pumping
08/1976
08/17/1976US3975117 Pump and motor unit with inducer at one end and centrifugal impeller at opposite end of the motor
06/1976
06/22/1976US3964885 Centrifugal pumps
06/22/1976US3964836 Method of pumping liquid with a submerged rotary pump and pump for carrying out the method
04/1976
04/27/1976US3952772 Intake piece adapted for emptying containers with liquid
03/1976
03/16/1976US3944406 Centrifugal pump for pumping liquids with heavy gas content
03/09/1976US3942961 Pumps
03/02/1976US3941505 Method and apparatus for pumping fuel
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