Patents for F04D 13 - Pumping installations or systems (12,375)
08/1985
08/07/1985EP0150320A1 Magnetic bearing
08/06/1985US4533294 High speed centrifugal pump and method for operating same at reduced noise levels
08/01/1985WO1985003270A1 A device in fluid pressure generators
07/1985
07/30/1985US4531892 Apparatus for pumping of pulp
07/23/1985US4530641 Pump, particularly a submersible or barrel pump
07/17/1985EP0148343A2 Motor pump unit
07/02/1985US4526517 Circular centrifugal pump with arcuate input and output sections
07/02/1985US4526507 Shaft driven pump without seals
07/02/1985CA1189693A1 Apparatus for forming an element-free gap in a continuous slide fastener chain
06/1985
06/18/1985US4523899 Submergible motor pump assembly
05/1985
05/14/1985US4516915 Pumping plant
05/08/1985EP0139725A1 Fluid discriminating apparatus
05/07/1985US4515517 Well point system and apparatus
04/1985
04/25/1985WO1985001781A1 Pump station
04/24/1985EP0084540A4 A motor-pump assembly.
04/23/1985US4512885 Aquarium filter assembly
04/23/1985US4512724 Electric pump for use in filtering system of a tropical fish tank or the like
04/16/1985US4511315 Liquid metal mechanical pump
04/16/1985US4511312 Method of driving the impeller of a liquid pump by means of a brushless a.c. motor; and a liquid pump for carrying out the method
03/1985
03/19/1985US4505637 Axial-flow centrifugal pump for the circulation of fluid
03/12/1985CA1183721A1 Transformer oil circulating pump
03/05/1985US4502515 Dry battery driven liquid pump
02/1985
02/19/1985US4500263 Electrically driven submersible pump system
02/19/1985CA1182743A1 Downhole steam generator and turbopump
02/12/1985CA1182445A1 Downflow mixer
01/1985
01/31/1985WO1985000297A1 Process and device for the separation of substances by means of membranes
01/22/1985US4494602 Electrical connection device for an underwater well head
01/15/1985US4493609 Pumping apparatus
01/08/1985US4492532 Shaft pipe construction for regulating liquid delivery of submersible pumps
01/08/1985US4492514 Submerged pump assembly and method of making and using same
12/1984
12/19/1984EP0128446A1 Selectively controlled dual delivery pump, particularly for motor vehicle application
12/18/1984US4488856 Hydraulic power supply with hermetic sealing of hydraulic fluid and sealing method
12/18/1984US4488852 Submersible pump apparatus
12/18/1984CA1179553A1 Gas-energized liquid pump
12/11/1984US4487557 Magnetically driven centrifugal pump
11/1984
11/08/1984WO1984004365A1 Hydraulically driven pump aggregate
11/06/1984US4480967 Motor-driven pump unit for a high-pressure cleaning apparatus
11/06/1984CA1177328A1 Canned motor pump for use in the high temperature
10/1984
10/30/1984CA1176913A1 Submersible pump discharge head
10/16/1984US4477235 Submerged motor-pump unit
10/11/1984WO1984003915A1 Device for connecting an engine casing to a pump
10/11/1984WO1984003878A1 Fluid discriminating apparatus
10/09/1984US4475873 Wet-motor pump
09/1984
09/18/1984US4471762 Solar heating apparatus
09/12/1984EP0118403A1 Back flow preventing device in the outlet pipe of a pump
08/1984
08/28/1984US4468358 Apparatus for mixing air and liquid
08/28/1984US4468176 Turbine driven pump
08/28/1984CA1173414A1 Circulating system for vehicle heaters
08/21/1984US4466781 Arrangement for feeding fuel, particularly from supply container to internal combustion engine of a power vehicle
08/21/1984CA1172907A1 Method and mechanism for controlling the pressure at shaft-sealing part of an apparatus
08/14/1984US4465437 Pump comprising a canned motor
07/1984
07/31/1984US4462752 In-line centrifugal pump
07/24/1984US4461614 Through flow sump pump
07/17/1984US4460181 Method and mechanism for controlling the pressure at shaft-sealing part of an apparatus
06/1984
06/05/1984CA1168574A1 Anti-gas locking apparatus
05/1984
05/22/1984US4449891 Aggregate for supplying fuel from supply container to internal combustion engine
05/22/1984US4449888 Free spool inducer pump
05/22/1984CA1167695A1 Pump
05/22/1984CA1167693A1 Pump for supplying kerosene to combustion apparatus
05/01/1984US4445820 Electrically powered pump
04/1984
04/18/1984EP0105687A1 Electronically commutated electric pump
04/17/1984US4442858 Surge chamber
04/04/1984EP0104505A2 A canned motor pump
03/1984
03/29/1984WO1984001138A1 Stripping system for a cargo tank
03/20/1984US4437814 Dredge pump drive system
03/06/1984US4435132 Submersible pumping system
02/1984
02/28/1984CA1162845A1 Locking assembly for well devices
02/15/1984EP0100390A2 A method of driving the impeller of a liquid pump by means of a brushless A.C. motor, and a liquid pump for carrying out the method
01/1984
01/31/1984US4428264 Apparatus for forming an element-free gap in a continuous slide fastener chain
01/17/1984US4425965 Safety system for submersible pump
01/04/1984EP0097549A1 Device to realize the sealing of a submersible motor, and such a motor
01/04/1984EP0097548A1 Bore-hole pump and method for its protection
01/03/1984CA1159716A1 Submersible pump seal section with multiple bellows
12/1983
12/27/1983US4422771 Downflow mixer
12/27/1983US4422514 Pump for a reverse circulation rotary drilling rig
12/20/1983US4421999 Submersible pump seal section with multiple bellows
12/20/1983US4421163 Downhole steam generator and turbopump
12/06/1983US4419043 Centrifugal pump
11/1983
11/22/1983US4416586 Submersible motor pump assembly
11/22/1983CA1157346A1 Device for circulation of a fluid, e. g. hot water
11/15/1983US4415308 Pump for supplying kerosene to combustion apparatus
11/08/1983US4413958 Apparatus for installation in wells
10/1983
10/26/1983EP0092531A2 A method for transporting liquid
10/12/1983EP0091105A1 Motor pump unit for immersed use
10/11/1983US4409504 Tandem connected submersible oil well pump motors
10/11/1983US4408966 Pump for supplying liquid fuel
10/11/1983US4408953 High efficiency centrifugal pump
10/05/1983EP0090411A1 Submerged motor pump assembly
10/04/1983US4407360 Borehole water pumping system with sandtrap
09/1983
09/27/1983US4406582 Submersible pump discharge head
09/21/1983EP0089121A1 Pump systems
09/06/1983CA1153414A1 High speed magnetic coupling with ceramic magnets maintained under centrifugal compression
09/06/1983CA1153307A1 Rotary drive assembly for downhole rotary pump
08/1983
08/23/1983US4400134 Collector apparatus
08/23/1983CA1152486A1 Radial flow gas liquid rotor-type mixer
08/09/1983USRE31338 Pump assembly driven by endless conveyor
08/03/1983EP0084540A1 A motor-pump assembly
08/02/1983US4396350 Pump isolation valve
08/02/1983US4396347 Energy saving pump and pumping system
07/1983
07/26/1983US4394931 Polyurethane foam-lined shell