Patents for F04D 13 - Pumping installations or systems (12,375)
11/1980
11/18/1980US4234293 Axial balancing system for motor driven pumps
11/11/1980CA1089322A1 Sewage pump assembly
11/04/1980US4231718 Fluid pump, particularly a fuel supply pump
10/1980
10/29/1980EP0018266A1 Centrifugal pump for fluid circulation
10/28/1980US4230440 Through flow sump pump
10/21/1980US4229142 One-piece pumping device with ambivalent operation
10/14/1980US4227733 Apparatus for connecting a lifting tackle to a submersible pump
10/07/1980US4226574 Magnetically driven pump
09/1980
09/30/1980US4225292 Liquid cooled pump motor unit
09/23/1980US4224363 Motor jacking apparatus
09/23/1980US4224009 Submersible pump with improved sealing means
09/16/1980US4222701 Pump module for a compliant underwater pipe system
08/1980
08/20/1980EP0014659A1 Flexible device for sucking up large quantities of fluids, especially for pumping seawater from the depth
08/19/1980US4218195 Submersible pump
08/06/1980EP0013869A1 Device for cooling a submersible sealed motor unit
08/05/1980US4215976 Turbine-impeller pump for use in geothermal energy recovery systems
07/1980
07/22/1980US4213745 Pump for central heating system
07/22/1980US4213743 Pump assembly driven by endless conveyor
06/1980
06/24/1980US4209284 Electric motor-driven two-stage fuel pump
06/24/1980US4209282 Pump assembly
06/17/1980US4208171 Hydrodynamic pump units and regulators therefor
06/10/1980US4207485 Magnetic coupling
05/1980
05/27/1980US4204810 Bi-directional pump
05/27/1980US4204801 Sewage pump assembly
05/27/1980CA1078255A1 Blood pump
05/06/1980US4201524 Submersible pump system using a submersible internal combustion engine
05/06/1980US4201521 Pump and motor assembly
05/06/1980US4201519 Through flow sump pump
04/1980
04/29/1980CA1076418A1 Pump-motor assemblage for circulating a coolant
04/08/1980CA1075081A1 Centrifugal pump and electric motor unit
04/02/1980EP0009428A1 Automatic control system for centrifugal pumps
04/01/1980CA1074665A1 Centrifugal replenishing pump for a hydrostatic pump-motor system
03/1980
03/18/1980US4193265 Transducer for converting the energy of ocean currents
03/18/1980CA1073824A1 Gas separator
03/18/1980CA1073743A1 Clutch connected multi-stage impeller pump
02/1980
02/26/1980CA1072398A1 Device for controlling the flow and rate of flow of hydraulic fluid, and installation of same in a dual circulating pump
02/20/1980EP0008260A1 Turbine-driven pump
02/12/1980US4188008 Farm pump mounting bracket
02/12/1980CA1071682A1 Fuel pump for automotive vehicles
02/12/1980CA1071470A1 Floating self levelling suction device
02/05/1980US4186555 Hydraulic machine
01/1980
01/01/1980US4181475 Oil housing
01/01/1980US4181471 Nuclear reactor coolant pump having a tooling boom
12/1979
12/18/1979US4179243 Floatation pump device
12/18/1979US4179239 Modular pump unit for multistage high pressure slurry pump
12/04/1979US4177021 Through flow sump pump
11/1979
11/27/1979US4175916 Pump with steep-angle hitch and universal drive joint
11/13/1979US4173796 Total artificial hearts and cardiac assist devices powered and controlled by reversible electrohydraulic energy converters
10/1979
10/30/1979US4172697 Cooling pump bracket
10/30/1979US4172695 Pump unit
10/30/1979CA1065187A1 Impeller pump and vane pump assembly with clutch deactivation
10/18/1979WO1979000782A1 Motor pump with impeller rotor
08/1979
08/07/1979US4163368 Centrifugal replenishing pump for a hydrostatic pump motor system
07/1979
07/31/1979US4163164 Split magnet drive
07/24/1979US4162137 Submersible, hydraulically-driven pump rotating about a vertical axis
07/17/1979CA1058479A1 Automatically operative pumping equipment
06/1979
06/19/1979CA1056889A1 High-speed rotation system
05/1979
05/01/1979US4152099 Magnetically coupled pump and impeller assembly therefor
05/01/1979US4152097 Deep well pump adapter with inflatable seal means
03/1979
03/13/1979US4143488 Fuel supply unit
02/1979
02/27/1979US4142108 Geothermal energy conversion system
02/06/1979US4138202 Hydraulic motor system for driving a submersible impeller pump in which reversal of hydraulic flow is prevented
01/1979
01/23/1979US4135863 Impeller for a magnetically coupled pump
01/23/1979US4135253 Centrifugal blood pump for cardiac assist
01/16/1979US4134712 Fuel supply unit consisting of a pump and an electromotor
01/16/1979US4134711 Submersible pump apparatus
12/1978
12/19/1978CA1044515A1 Electromagnetically driven pumps
12/05/1978US4128365 Fuel supply unit
11/1978
11/21/1978US4126406 Cooling of downhole electric pump motors
11/07/1978US4124332 Automatically operative pumping equipment
11/07/1978CA1042047A1 Variable reluctance motor pump
10/1978
10/17/1978US4120618 Permanent magnetic centrifugal pump
10/03/1978US4118142 Dual-pump coupling
09/1978
09/19/1978US4115040 Permanent magnet type pump
09/19/1978US4115038 Motor driven pump
09/12/1978CA1038262A1 Self-monitored fluid pressure booster system
08/1978
08/29/1978US4110059 Pumping device
08/22/1978US4108499 Method and control system for controlling a suspended implement
07/1978
07/18/1978US4101139 Bearing bracket assembly for a submersible motor driven pump
06/1978
06/27/1978US4097307 Fill control for an automatic dishwasher
05/1978
05/30/1978US4091687 High-speed rotation system
05/16/1978US4089620 Floating pumping device
05/02/1978USRE29620 Self-monitored fluid pressure booster system
05/02/1978US4087204 Enclosed sump pump
04/1978
04/25/1978US4086306 Centrifugal pump
04/25/1978US4086030 Free fluid-operated well turbopump
04/18/1978US4084924 Pump-motor assemblage for circulating a coolant
04/04/1978US4082482 Articulated turbine pump
04/04/1978US4082376 Bearing arrangement
03/1978
03/21/1978US4080112 Magnetically-coupled pump
03/21/1978US4080106 Purged valve assembly and method of sealing
03/07/1978US4077220 Gravity head geothermal energy conversion system
02/1978
02/07/1978US4072446 Electromagnetically driven pumps
01/1978
01/17/1978US4069101 Self-compensating level control for sump suction pumps
01/10/1978US4067665 Turbine booster pump system
12/1977
12/27/1977US4065234 Magnetically driven rotary pumps
12/27/1977US4065232 Liquid pump sealing system
12/27/1977US4065231 Motor driven pump
12/06/1977US4061439 Impeller pump and vane pump assembly with clutch deactivation
12/06/1977US4061187 Dual cooling system