| Patents for F04B 47 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps (5,485) |
|---|
| 09/28/2006 | WO2006056755A3 Monitoring system |
| 09/28/2006 | US20060216167 Methods and apparatus for splitting and directing a pressurized fluid jet within a servovalve |
| 09/28/2006 | US20060216163 Gravity water pumps that pump fluid by gravity |
| 09/27/2006 | CN2821153Y Composite anti-pump retaining pipe for deep well pump |
| 09/20/2006 | CN2818846Y Multi-stage jig-frequency adjuster of beam-pumping unit |
| 09/20/2006 | CN2818845Y Sandproofing big-sprue beam-pumping unit of spiral injection |
| 09/20/2006 | CN1834457A Method of using linear dynamo oil recovery and linear dynamo oil pump |
| 09/15/2006 | CA2539718A1 Piston-type water pump |
| 09/13/2006 | CN2816415Y Screw pump |
| 09/13/2006 | CN2816410Y Double-valve equal-diameter strong corrosion-resisting efficient deep-pumping pump |
| 09/13/2006 | CN2816409Y Sand-proof pumping-oil pump capable of hanging tail pipe |
| 09/13/2006 | CN2816407Y Insertion-type underground oil-extraction screw rod pump |
| 09/12/2006 | CA2260333C Method for operating an active oil and gas production well using a pumping system |
| 09/06/2006 | CN2813926Y Wire cable type electric latent permanent magnetic linear reciprocating pump |
| 09/06/2006 | CN1828055A Overground double extraction power arrangement method and double extraction power system |
| 09/05/2006 | CA2192390C Process and device for raising liquids from wells |
| 08/30/2006 | CN2811629Y Big flow submersible pump |
| 08/30/2006 | CN2811599Y Hydraulic self-sealing plunger oil-well pump |
| 08/30/2006 | CN2811595Y Modular upper seal holder for protector of electric submersible pump |
| 08/30/2006 | CN2811594Y Oil-well pump capable of pumping oil and water |
| 08/30/2006 | CN1826471A Galvanic corrosion protection apparatus for a pump |
| 08/23/2006 | EP1693336A1 Barrel support for a barrel pump |
| 08/23/2006 | EP1325207B1 Gas operated pump for use in a wellbore |
| 08/23/2006 | CN2809269Y Junk prevention device for oil well pump |
| 08/23/2006 | CN1823209A Portable, surface-mounted well pump |
| 08/23/2006 | CN1821542A Novel oil production underground device |
| 08/22/2006 | US7093652 Plunger with multiple jackets |
| 08/22/2006 | US7093651 Water pressure system with pressure tank installed within well casing of well |
| 08/22/2006 | CA2217411C Method for controlling the speed of a pump based on measurement of the fluid depth in a well |
| 08/16/2006 | CN2806824Y Lock brake device for oil pumping unit |
| 08/09/2006 | CN2804496Y Belt wrap angle regulator of beam unit |
| 08/09/2006 | CN2804434Y Side input valve of oil pump |
| 08/09/2006 | CN2804433Y Soft sealed telescopiform, anti-eccentric grinding high viscosity oil pump |
| 08/09/2006 | CN2804380Y Multifunction sucking aid of sucker rod |
| 08/08/2006 | US7086486 Flow control valve and method of controlling rotation in a downhole tool |
| 08/08/2006 | CA2387635C Multi-chamber positive displacement fluid device |
| 08/03/2006 | US20060171821 Hydraulic pump jack sytem for reciprocating oil well sucker rods |
| 08/03/2006 | US20060169447 Integrated control system for beam pump systems |
| 08/02/2006 | CN2802121Y Ground driving device of multifunction combined screw pump |
| 08/02/2006 | CN2802062Y Spring type Y-shaped joint for well |
| 08/01/2006 | CA2267971C Drive head assembly |
| 07/27/2006 | US20060162357 Split power input to chiller |
| 07/26/2006 | CN2799980Y Anti-loosening adjusting device for driving belt |
| 07/26/2006 | CN2799906Y Big flow channel and long plunger type sand-control oil well pump |
| 07/26/2006 | CN2799902Y Chain driven pumping unit |
| 07/26/2006 | CN2799855Y Bump device for oilfield pumping well |
| 07/26/2006 | CN1807888A Wind and electricity hybrid driving method and apparatus for sucker rod pump |
| 07/19/2006 | CN1804397A Sealing structure of oil-well pump and oil-well pump therewith |
| 07/14/2006 | CA2511371A1 Method of running a down hole rotary pump |
| 07/13/2006 | US20060153720 Pump for tail production of oil |
| 07/12/2006 | CN1800643A Deep-well pump molded by punching and welding |
| 07/11/2006 | CA2269710C Dual pump gravity separation system |
| 07/05/2006 | CN1798901A Downhole pump |
| 07/05/2006 | CN1797410A Method for implementing complete system of oil diving electric pump |
| 07/04/2006 | US7069997 Valve cage insert |
| 07/04/2006 | US7069986 Portable, surface-mounted well pump |
| 06/28/2006 | CN2791244Y Magnetic suspension pump oil-feeding device |
| 06/28/2006 | CN1261688C Low friction resistance plunger pump |
| 06/22/2006 | WO2006063562A1 Pump arrangement for transporting a liquid from a borehole |
| 06/21/2006 | CN2789494Y Improved connection structure for crank and crankpin of pumping unit |
| 06/14/2006 | CN2787872Y Big flow channel feedback type pumping unit |
| 06/14/2006 | CN2787826Y Device for downhole oil release and steam injection |
| 06/08/2006 | US20060120892 Hydraulic system for mining equipment and method of adjusting power of rock drill machine |
| 06/07/2006 | EP1666697A1 Fluid operated pump for use in a wellbore |
| 06/07/2006 | CN1782389A Leakage diagnosing method for ground driving screw pump oil production well |
| 06/06/2006 | CA2431604C A method of circulating through a reciprocating downhole tubing pump and a reciprocating downhole tubing pump |
| 06/01/2006 | WO2006056755A2 Monitoring system |
| 06/01/2006 | US20060113072 Wellbore pump |
| 05/31/2006 | EP1660776A1 Galvanic corrosion protection apparatus for a pump |
| 05/31/2006 | EP1660755A2 Portable, surface-mounted well pump |
| 05/31/2006 | CN2784619Y Pumping unit with crank and drum |
| 05/31/2006 | CN2784618Y Optimized operating device for beam-pumping unit |
| 05/31/2006 | CN2784616Y Self-sucking pump |
| 05/31/2006 | CN1258041C Improved vibratory pump |
| 05/30/2006 | US7051813 Pass through valve and stab tool |
| 05/30/2006 | CA2250739C Sucker rod pump actuating device |
| 05/25/2006 | US20060108126 Gas-pressurized lubricator |
| 05/24/2006 | EP1123480B1 Centrifugal pellet dryer |
| 05/24/2006 | CN2782986Y Hydraulic oil pump |
| 05/24/2006 | CN2782985Y Liquid column load trasferring |
| 05/24/2006 | CN1776229A Motor-pumped well deep water pump sand-preventing process and device |
| 05/23/2006 | US7048522 Fluid balanced pump |
| 05/18/2006 | US20060101817 Generator motor device |
| 05/17/2006 | CN2780977Y Anchor for oil production tubular column of screw pump |
| 05/17/2006 | CN2780414Y Balame regulating device of oil pumping machine |
| 05/17/2006 | CN1773116A Oil production long extraction method |
| 05/10/2006 | CN2779111Y Loose-proof device of crank-pin |
| 05/10/2006 | CN2779110Y Spray-proof device of oil-well pump |
| 05/10/2006 | CN2779109Y Linear engine oil extraction pump |
| 05/10/2006 | CN2779108Y Solid plunger rod type oil-well pump |
| 05/10/2006 | CN2779107Y Motor top arranged type rod-less oil-well pump |
| 05/09/2006 | US7040392 Bearing assembly for a progressive cavity pump and system for liquid lower zone disposal |
| 05/04/2006 | US20060090893 Plunger Lift Apparatus That Includes One or More Sensors |
| 05/03/2006 | CN2777243Y Anti eccentrically wear device for oil pumping unit plunger |
| 05/03/2006 | CN1766335A Repair method for improving pumping rod strength |
| 04/26/2006 | CN2775343Y Submersible water pump |
| 04/26/2006 | CN2775342Y Separate production and separate output oil pump |
| 04/25/2006 | US7032659 Integrated control system for beam pump systems |
| 04/20/2006 | US20060083635 Air bladder type vent valve for use in an hydraulic oil tank of an enclosed hydraulic transmission system |
| 04/20/2006 | US20060083633 Pressure/flow sensing stall recovery for a ram air turbine |