U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 166/216 - With wedge or cam and friction drag


Subclass of Class 166 - Wells
Definition: Devices comprising a combination of a friction means and
No. of applications: 26
Last issue date: 04/18/2013


Application No.Application TitleIssue Date
20130092398METHOD AND APPARATUS FOR REMOVING SHIFTING TOOLS AND PROVIDING WELLBORE ISOLATION
A system for performing a downhole operation including a tubular string having a locking profile non-movably located therewith. At least one member is movably mounted with the string and includes an engagement profile. A tool is runnable with the string and has at least...
04/18/2013
20130025884LOW STRESS TRACTION SYSTEM
A technique enables anchoring of a tool in a wellbore. The technique provides traction against a well component without creating high stress concentrations that weaken the well component. An anchoring device comprises anchoring members that are selectively movable to an...
01/31/2013
20120267121Limit collar
A limit collar includes a limit component coupled to a surface of a wellbore tubular; and an interface component engaging the limit component. The interface component may include an extension, and wherein at least one surface of the extension is coupled to the limit com...
10/25/2012
20120186804Tapered Dog Configuration to Share Stress in a Housing of a Subterranean Tool
A plurality of rows of locking dogs are provided with housing flexibility between rows to allow them to share a shear loading while leaving enough structural integrity in the housing to define the windows through which the dogs emerge. The dogs can also have extensions ...
07/26/2012
20120152526SYSTEM AND METHOD FOR ANCHORING AN EXPANDABLE TUBULAR TO A BOREHOLE WALL
The present invention provides a system for anchoring an expandable tubular to a borehole wall. The system comprises a support member having a first end fixed relative to the outside of the tubular and a second end comprising a ramping surface. An anchor member has a fi...
06/21/2012
20120090832Downhole Actuator
An actuator for connecting to and displacing of a component in a well tubular is disclosed. The actuator includes a tool shaft provided with a radial direction spring-loaded gripping device which are complementary fitting in the component....
04/19/2012
20120012306RETRIEVABLE SLIP MECHANISM FOR DOWNHOLE TOOL
A downhole tool slip mechanism including a cone, cage, and slip disposed on a mandrel. The cone and cage can be move in relation to one another, and the come may be locked into place during run-in and retrieval downhole. The cage contains slip slots contains a spring re...
01/19/2012
20110259609EXPANDING A TUBULAR ELEMENT IN A WELLBORE
A method is provided of radially expanding a tubular element (56) in a well-bore using an expander located in the tubular element, the expander (40) comprising an expansion member (48) and a plurality of segments (50) spaced in circumferentia...
10/27/2011
20110253386ANCHOR SYSTEM AND METHOD FOR ANCHORING A TOOL WITH A POSITIONAL BIAS
An anchor system including a housing having a radial opening therein. A piston disposed within the housing and translatable therein. A slip in operable communication with the piston such that translation of the piston axially of the housing causes movement of the slip r...
10/20/2011
20110220346Downhole Actuator
An actuator for connecting to and displacing of a component in a well tubular is disclosed. The actuator includes a tool shaft provided with a radial direction spring-loaded gripping device which are complementary fitting in the component....
09/15/2011
20110011578Expansion System for Expandable Tubulars
Methods and apparatus for radially expanding and plastically deforming an expandable tubular member using a lower expansion cone and an upper expandable cone. The apparatus includes an expandable tubular, a support member releasably secured to the expandable tubular, an...
01/20/2011
20100276159Non-Damaging Slips and Drillable Bridge Plug
A non-damaging slip assembly includes slips having grit on a smooth surface, the slips preferably made from a ductile material, such that the slips do not cause damage to the wall of a tubular when the slips are set. The slips fail under tensile force during setting. Th...
11/04/2010
20100101779MULTIPLE-BLOCK DOWNHOLE ANCHORS AND ANCHOR ASSEMBLIES
Multiple-block downhole anchors and anchor assemblies are provided. A downhole anchor assembly for a tubing string includes an anchor block, a drag block, a biasing arrangement, and a mandrel to be coupled to the tubing string. The anchor block moves, with rotation of t...
04/29/2010
20100044055Well Tool Latching System
A system for securing well tools, such as gas lift valves, into a latching profile within a wellbore. A gas lift valve is provided having a latching arrangement wherein an apertured back-up ring is used to provide stability for the locking lugs throughout the process of...
02/25/2010
20100044029ACTIVE CONTROL AND/OR MONITORING OF EXPANDABLE TUBULAR DEVICES
An expandable swage including a swage body, at least one swage segment in operable communication with the swage body, and a position indicator in operable communication with the at least one swage segment; the position indicator capable of providing information related ...
02/25/2010
20090321067RELEASING SLIPS FOR OIL WELL TOOL
Releasing slips for use with a downhole tool, a tool for deploying downhole in a well utilizing the releasing slips and a well in which a downhole tool is deployed utilizing the releasing slips of the invention is described herein. The tool has a plurality of slips for ...
12/31/2009
20090236101Force Monitoring Tractor
A downhole tractor assembly that is configured for open-hole applications. The assembly includes a force monitoring mechanism to help monitor and control forces imparted through a drive mechanism of the tractor in real time. As such, damage to open-hole formations due t...
09/24/2009
20090159269Self-Anchoring Device with Force Amplification
A downhole tool is provided that includes a grip assembly for contacting a well formation. The grip assembly includes a gripper body; and a centralizer that is attached to and radially expandable with respect to the gripper body and that has a geometry which is lockable...
06/25/2009
20090126926Torque anchor
The invention describes a torque anchor for use with progressive cavity pumps (PC Pumps) for preventing rotation of the PC Pumps and any related tool string and tubing within a wellbore. The torque anchor includes at least one fixed rigid slip and one pivotable slip tha...
05/21/2009
20090071659Anchoring System for Use in a Wellbore
A technique enables anchoring of a tool in a wellbore. The technique utilizes one or more arms pivotably mounted to a structure for movement between a radially inward position and radially outward position that anchors the tool to a surrounding wall. A wedge component i...
03/19/2009
20090071660Low Stress Traction System
A technique enables anchoring of a tool in a wellbore. The technique provides traction against a well component without creating high stress concentrations that weaken the well component. An anchoring device comprises anchoring members that are selectively movable to an...
03/19/2009
20090038808TANGENTIALLY-LOADED HIGH-LOAD RETRIEVABLE SLIP SYSTEM
A slip system includes a set of drive slips having wickers thereon, substantially all of which being truncated in cross-section; a set of gripping slips operatively interengagable with the set of drive slips; a drive slip end ring in operable communication with the set ...
02/12/2009
20090014173WELL BORE ANCHORS
A formation engaging member for use in an open hole anchor (10) is described. The formation engaging member has at least one first open hole surface engaging element (20) for penetrating a surface of an open hole, and at least one second open hole surface ...
01/15/2009
20080164017BOTTOM HOLE COMPLETION SYSTEM FOR AN INTERMITTENT PLUNGER
A bottom hole assembly for an intermittent lift plunger system includes a retrievable downhole anchor which may be set and reset in one downhole trip, a retrievable packing device, and a plunger stop....
07/10/2008
20080093091Method And Device For Preventing Pipeskidding
A method and device for preventing a pipe string (5) clampingly arranged in a slips (2) from slipping out of the slips (2) in the event of the pipe string (5) slipping in the slips (2), wherein a pipe clamp (22) is clamped, pref...
04/24/2008
20070012440Activating mechanism for hydraulically operable downhole tool
An activating mechanism for a hydraulically operable downhole tool provided in a drill string, in which the mechanism is incorporated in the drill string and has a tubular housing, a pressure piston mounted for linear reciprocating movement in the housing between first ...
01/18/2007
 
Sign InRegister
Username  
Password   
forgot password?