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Class Information
Number: 166/332.1
Name: Wells > Valves, closures or changeable restrictors > Longitudinally movable operator
Description: Valve, closure or changeable restrictor comprising an axially shiftable element operated from the surface of the well to control movement of a flow regulating device.










Sub-classes under this class:

Class Number Class Name Patents
166/333.1 Contact with bore bottom 12
166/332.8 Flapper type 201
166/332.6 Having a dump or discharge type means 7
166/332.7 Having equalizing valve 45
166/332.2 Having rotational movement 40
166/332.4 Operated by means inserted from the surface 149
166/332.5 Valving means inserted or retrieved to operate 46
166/334.1 Vertical movement of conduit 100


Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
7918275 Water sensitive adaptive inflow control using couette flow to actuate a valve Apr. 5, 2011
7900707 Apparatus and method for selectively controlling fluid downhole in conjunction with a progressive cavity pump (PCP) Mar. 8, 2011
7891428 Safety valve Feb. 22, 2011
7886849 System for drilling under-balanced wells Feb. 15, 2011
7866402 Circulation control valve and associated method Jan. 11, 2011
7798230 Downhole tool Sep. 21, 2010
7762335 Switching apparatus between independent control systems for a subsurface safety valve Jul. 27, 2010
7735557 Wireline slip hanging bypass assembly and method Jun. 15, 2010
7717183 Top-down hydrostatic actuating module for downhole tools May. 18, 2010
7712538 Method and apparatus for multi-positioning a sleeve May. 11, 2010
7703532 Tubing retrievable injection valve Apr. 27, 2010
7703533 Shear type circulation valve and swivel with open port reciprocating feature Apr. 27, 2010
7694742 Downhole hydraulic control system with failsafe features Apr. 13, 2010
7644767 Safety valve with flapper/flow tube friction reducer Jan. 12, 2010
7617874 Flexible matrix composite actuator for use in subsurface wellbores Nov. 17, 2009
7604056 Downhole valve and method of making Oct. 20, 2009
7575058 Incremental annular choke Aug. 18, 2009
7575062 Methods and devices for treating multiple-interval well bores Aug. 18, 2009
7562712 Setting tool for hydraulically actuated devices Jul. 21, 2009
7556102 High differential shifting tool Jul. 7, 2009
7552774 Control line hydrostatic minimally sensitive control system Jun. 30, 2009
7543651 Non-elastomer cement through tubing retrievable safety valve Jun. 9, 2009
7497265 Reclosable mechanical annular flow valve Mar. 3, 2009
7487829 Wellbore valve having linear magnetically geared valve actuator Feb. 10, 2009
7467664 Production actuated mud flow back valve Dec. 23, 2008
7448591 Step ratchet mechanism Nov. 11, 2008
7422065 System for controlling zones of fluid in and out of a wellbore Sep. 9, 2008
7373972 Piloting actuator valve for subterranean flow control May. 20, 2008
RE40308 Multi-purpose injection and production well system May. 13, 2008
7363981 Seal stack for sliding sleeve Apr. 29, 2008
7347268 One trip flow tube exercising tool Mar. 25, 2008
7347269 Flow tube exercising tool Mar. 25, 2008
7331392 Pressure range delimited valve Feb. 19, 2008
7303020 Interventionless oil tool actuator with floating piston and method of use Dec. 4, 2007
7252153 Bi-directional fluid loss device and method Aug. 7, 2007
7228914 Interventionless reservoir control systems Jun. 12, 2007
7152688 Positioning tool with valved fluid diversion path and method Dec. 26, 2006
7150326 Bi-directional ball seat system and method Dec. 19, 2006
7114697 Fast valve actuator and tool provided with same Oct. 3, 2006
7059418 Pressurized seal arrangement Jun. 13, 2006
7059426 Acoustic flow pulsing apparatus and method for drill string Jun. 13, 2006
7055598 Fluid flow control device and method for use of same Jun. 6, 2006
7051813 Pass through valve and stab tool May. 30, 2006
7021389 Bi-directional ball seat system and method Apr. 4, 2006
6978842 Volume compensated shifting tool Dec. 27, 2005
6953084 Actuator for well-head valve or other similar applications and system incorporating same Oct. 11, 2005
6874577 Water, oil and gas well recovery system Apr. 5, 2005
6860330 Choke valve assembly for downhole flow control Mar. 1, 2005
6834722 Cyclic check valve for coiled tubing Dec. 28, 2004
6817416 Flow control device Nov. 16, 2004

1 2 3 4










 
 
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