Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 47 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
Patents for F04B 47 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps (5,485)
03/1983
03/08/1983CA1142389A2 Downhole tool ratchet device to operate pump relief port
03/01/1983CA1142081A1 Downhole double acting pump
02/1983
02/22/1983CA1141590A2 Downhole tool lubrication system
02/15/1983US4373873 Hydrostatic and oil well pump
02/15/1983US4373867 Pressure charged airlift pump
02/15/1983CA1141233A2 Downhole tool intake port assembly
02/08/1983US4372389 Downhole water pump and method of use
01/1983
01/25/1983US4370105 Automatic pump for deep wells
01/25/1983CA1139994A2 Downhole tool inflatable packer assembly
01/20/1983WO1983000203A1 Moving mass pump jack and method of operation
01/19/1983EP0069827A2 Secondary oil recovery system
01/18/1983US4368909 Oil well bailer apparatus
01/18/1983CA1139613A2 Down hole pump
01/04/1983US4366861 Downhole gas separator
01/04/1983CA1138713A2 Downhole pump poppet valve assembly
12/1982
12/21/1982CA1137815A2 Packer actuator for downhole tool
12/14/1982US4363606 Free piston pump for pumping liquids from a well
12/14/1982US4363605 Apparatus for generating an electrical signal which is proportional to the tension in a bridle
11/1982
11/23/1982US4360320 Fluid driven successive stage bladder pump
11/23/1982CA1135996A2 Downhole tool suction screen assembly
11/09/1982US4358250 Apparatus for harnessing and storage of wind energy
11/09/1982US4358248 Sonic pump for pumping wells and the like employing dual transmission lines
10/1982
10/19/1982US4354397 Sucker rod shock absorber
10/12/1982US4353445 Toothed belt drive transmission for pumping units
10/05/1982US4352394 Cable-suspended well pumping systems
09/1982
09/29/1982EP0061239A1 System for pumping subterranean fluids
09/21/1982US4350478 Bottom hole oil well pump
09/21/1982US4350082 Pump piston having ring lubrication means
09/21/1982US4350080 Apparatus to pump multiple wells
09/21/1982CA1131993A1 Displacement pump
08/1982
08/31/1982US4347049 Balance hydraulic pumping unit
08/31/1982US4346620 Shock absorbing means for a rocker arm type oil well pump
08/03/1982US4342364 Apparatus and method for coupling sonic energy to the bore hole wall of an oil well to facilitate oil production
07/1982
07/27/1982US4341505 Sonic pressure wave pump for low production wells
06/1982
06/15/1982US4334834 Submersible pump stabilizer
06/08/1982CA1125095A1 Subsurface pumping installation for handling viscous or sand-laden fluids
06/01/1982US4332533 Fluid pump
05/1982
05/19/1982EP0051665A1 Oil well pump driving unit
05/11/1982US4329124 Connector assembly
05/11/1982CA1123342A1 Wind machine system for pushing and lifting loads and having improved counterbalancing
04/1982
04/13/1982US4324531 Guide apparatus for a submersible pump
04/06/1982CA1121263A1 Restoring device for the nag's head on a deep-well pump drive
03/1982
03/30/1982US4321837 Auxiliary counter balance for well pump
03/23/1982US4321015 Downhole, hydraulically actuated pump assembly with pressure settable packer nose assembly
03/23/1982US4320799 Oil well pump driving unit
03/18/1982WO1982000859A1 Oil well pump driving unit
02/1982
02/02/1982CA1117366A1 Oil well pump with plunger pull down and desanding assembly
12/1981
12/22/1981US4306463 Long stroke pump jack
12/15/1981US4305461 Well pumping apparatus
11/1981
11/24/1981US4302158 Automatic pump for deep wells
11/24/1981US4301688 Pump operating mechanisms
11/17/1981CA1112514A1 Fluid pump
11/12/1981WO1981003206A1 Oil well pump driving unit
11/10/1981US4299545 Hydraulic oil well pumping apparatus
10/1981
10/27/1981US4297088 Pump assembly comprising gas spring means
10/27/1981US4297087 Apparatus for pumping fluid from a well through a tubing string
10/27/1981US4296678 Polish rod jack system
10/27/1981CA1111311A1 Deep well pump
10/20/1981US4295801 Fluid-powered submersible sampling pump
10/20/1981US4295799 Sonic pressure wave surface operated pump
10/06/1981US4293287 Reversing valve assembly for a fluid operated well pump
09/1981
09/29/1981US4291588 Transmission
09/01/1981US4286928 Pumping unit
06/1981
06/30/1981US4275609 Positive safety brake for oil well pumping apparatus
06/16/1981US4273520 Deep well pump
05/1981
05/26/1981US4269082 Resetting device for the cam head on a deep-well pump drive
05/19/1981US4268228 Hydraulic pumping unit
05/19/1981US4268227 Downhole, hydraulically-actuated pump and cavity having closed power fluid flow
05/19/1981EP0016089A4 Wind machine system with oscillating power transmission and improved counterbalancing.
04/1981
04/21/1981US4262742 Downhole seal for low profile oil well pumping installations
04/14/1981CA1099188A1 Flow line monitor pilot valve assembly
02/1981
02/10/1981US4249867 Windmill having counterbalancing mechanism
02/10/1981US4249376 Pump jacks
01/1981
01/06/1981US4243361 Standing valve assembly for an oil well pump
12/1980
12/16/1980US4239458 Oil well unloading apparatus and process
12/16/1980US4238966 Belt drive for pump jack
11/1980
11/18/1980US4234295 Subsurface hydraulic pump using high pressure accumulator
11/18/1980US4234294 Deep well hydraulic pump system using high pressure accumulator
10/1980
10/07/1980US4226404 Universal long stroke pump system
10/01/1980EP0016288A1 Positive displacement pump systems
10/01/1980EP0016089A1 Wind machine system with oscillating power transmission and improved counterbalancing
09/1980
09/23/1980CA1086134A1 Subsurface pumping installation for handling viscous or sand-laden fluids
09/09/1980CA1085230A1 Horsehead pump
08/1980
08/26/1980US4219311 Pump assembly
07/1980
07/29/1980US4214854 Hydraulically actuated pump assembly having mechanically actuated valve means
07/08/1980US4211126 Wind machine system for pushing and lifting loads and having improved counterbalancing
06/1980
06/10/1980US4207036 Subsurface pumping installation for handling viscous or sand-laden fluids
05/1980
05/27/1980US4204811 Fluid pumping system
05/13/1980US4202656 Downhole hydraulically actuated pump with jet boost
05/06/1980US4201115 Oil well pump jack with dual hydraulic operating cylinders
04/1980
04/22/1980US4198820 Pumping unit for a well pump
04/15/1980US4197766 Counter-balanced pumping system
04/02/1980EP0009074A1 Wind machine system with oscillating power transmission and improved counterbalancing
03/1980
03/25/1980US4194393 Well driving and monitoring system
03/18/1980CA1073740A1 Automatic pump for deep wells
03/04/1980US4191514 Pumping arrangements to conserve energy
03/04/1980US4191016 Pumping jack
03/04/1980CA1073081A1 Downhole pump speed control
03/04/1980CA1072858A1 Valve
02/1980
02/12/1980US4187765 Apparatus for pumping fluid from a well
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