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| Number | Title | Issue Date |
| 8065937 | Method and device for positioning a power tong at a pipe joint A method and device for positioning a power tong (2) at the pipe joint (14) of a pipe string (12), where, after the pipe joint (14) has been brought within the working area of the power tong (2), the power tong (2) must be d... | 11/29/2011 |
| 7690281 | Tong positioning and alignment device A tong positioning apparatus including: (a) a base having a powered cylinder; (b) a first articulating arm attached at a first end to the cylinder and pivotally attached to the base; (c) a second arm attached at a first end to a second end of the first articulating ... | 04/06/2010 |
| 7631581 | Power tong positioner A power tong positioning apparatus having a base section and a backup elevating section engaging the base section. A first lift assembly is positioned between the base section and the backup elevating section while a tong elevating section engages the backup elevati... | 12/15/2009 |
| 7249639 | Automated arm for positioning of drilling tools such as an iron roughneck The invention relates to an apparatus for moving an Iron Roughneck into position to allow making-up or breaking-out of threaded joints in a drill string. The apparatus may also be used to move other drilling equipment into position on the centerline of the well or a... | 07/31/2007 |
| 7225865 | Apparatus for positioning a tong and drilling rig provided with such an apparatus A method and apparatus for positioning a tong comprises a piston and cylinder assembly and a mounting assembly therefor. The mounting assembly is mounted on a support beam in the drilling derrick and the piston and cylinder assembly is pivotally mounted on the mount... | 06/05/2007 |
| 7188547 | Tubular connect/disconnect apparatus An apparatus for rotating a tubular, the apparatus, in at least certain aspects including a frame, a rocker assembly connected to the frame, the rocker assembly including a top rocker arm pivotably mounted to the frame, and a bottom rocker arm pivotably mounted to t... | 03/13/2007 |
| 7188548 | Adapter frame for a power frame In one embodiment, an adapter frame is provided for use with a power frame to support a tong assembly. When the adapter frame is coupled to the power frame, the load capacity of the power frame is increased, thereby allowing the power frame to be used with larger to... | 03/13/2007 |
| 7178612 | Automated arm for positioning of drilling tools such as an iron roughneck The invention relates to an apparatus for moving an Iron Roughneck into position to allow making-up or breaking-out of threaded joints in a drill string. The apparatus may also be used to move other drilling equipment into position on the centerline of the well or a... | 02/20/2007 |
| 7165634 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 01/23/2007 |
| 7156170 | Methods and apparatus for severing nested strings of tubulars An apparatus and method for use in severing casing as it is pulled from a wellbore. In one aspect, the apparatus, includes a clamping assembly, a drilling assembly and a cutting assembly. The apparatus is disposed at the end of a telescopic arm, with the components ... | 01/02/2007 |
| 7147068 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 12/12/2006 |
| 7117938 | Drill pipe connecting and disconnecting apparatus Drilling rig apparatus for connecting and disconnecting well pipe at a drilling rig. A remotely controlled power wrench assembly is mounted on a remotely controlled lifting mechanism attached to a base spaced about the well axis on the rig floor. The wrench assembly... | 10/10/2006 |
| 7048050 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells The steel drill string attached to a drilling bit during typical rotary drilling operations used to drill oil and gas wells is used for a second purpose as the casing that is cemented in place during typical oil and gas well completions. Methods of operation are des... | 05/23/2006 |
| 7043814 | Method for aligning tubulars An apparatus is provided with position sensors. When the apparatus has moved one tubular into alignment with another tubular a button on a remote control console is pressed to memorize the position. After the next tubular has been gripped by the apparatus a “recal... | 05/16/2006 |
| 7040196 | Assembly machine with spatial positioning control An assembly machine includes a support structure having a plurality of selectively moveable support members that facilitate manually manipulating a tool relative to a work piece. A controller continuously gathers position information regarding the support members to... | 05/09/2006 |
| 7036610 | Apparatus and method for completing oil and gas wells A method of drilling and completing a wellbore in a geological formation to produce hydrocarbons from a well comprising at least the following four steps: drilling the well with a retrievable drill bit attached to a casing; removing the retrievable drill bit from th... | 05/02/2006 |
| 7013759 | Apparatus for handling tubulars and method A device for torquing a tubular connection. The device comprises an upper assembly having an upper jaw member, a lower assembly having a lower jaw member, an upper gear for advancing the upper jaw member, and a lower gear for advancing the lower jaw member. The uppe... | 03/21/2006 |
| 7000503 | Support system for power tong assembly A tong assembly having a powered tong mounted over a backup tong is supported at its rear by a post with torque measuring means. The powered tong is supported at its front, near its throat, by one or more struts that extend downwardly to the backup tong. Such strut ... | 02/21/2006 |
| 6965230 | Apparatus and method for determining the position of the end of a threaded connection, and for positioning a power tong relative thereto Apparatus and method for positioning a power makeup/breakout device, commonly referred to as a “power tong unit,” along the longitudinal axis of a tubular, with respect to the end of a connection. A probe having an electric coil is mounted on the power tong. An ... | 11/15/2005 |
| 6920808 | Double-action power pipe wrench An adjustable power wrench is provided for spinning together, and apart, sections of pipe used in long drill strings such as are typically seen in water well and oil drilling. The wrench is preferably designed for use with large diameter drill pipes or rods, includi... | 07/26/2005 |
| 6817271 | Wrench for use with drilling apparatus The invention relates to a wrench for use with drilling apparatus used for drilling holes in the ground with a drill bit comprising a drilling segment, extension segments and a distance piece which connects the drill bit to the apparatus. The drill bit segments are ... | 11/16/2004 |
| 6776070 | Iron roughneck An iron roughneck has a pair of upper jaws carrying pipe gripping dies for gripping tool joints. The jaws have recesses formed on each side of the pipe gripping dies to receive spinning rollers. By positioning the spinning rollers in the upper jaws at the same level... | 08/17/2004 |
| 6752044 | Power tong assembly and method A power tong system and method is disclosed for making and breaking joints between wellbore. The system comprises a frame to which a spinner is mounted for spinning the wellbore tubulars. A first member is pivotally mounted with respect to the frame such that the fi... | 06/22/2004 |
| 6431029 | Maneuverable wellbore tubular makeup and breakout apparatus and method A maneuverable powerjaw apparatus for making and breaking joints of well bore tubular is provided for operation on a rig floor. Preferably a plurality of wheels are mounted to a mobile housing in a reverse tricycle orientation that permits high maneuverab... | 08/13/2002 |
| 6318214 | Power tong positioning apparatus A power tong positioning apparatus positionable on the surface of drilling rig deck and attachable to at least one power tong. The power tong support is adapted to position at least one power tong so that it may engage a tubular member. The power tong pos... | 11/20/2001 |
| 6276238 | Open top rotating vise An open top rotating vise for use in breaking joints in a drillstring has a cradle with two side plates and two end plates secured to one another and semi-circular bearing surfaces carried by and extending outboard from the side plates. A stand with side ... | 08/21/2001 |
| 6263763 | Power tong and backup tong system A power tong system, comprising a frame having a rear support and a front support, the front support comprising a first front leg and a second front leg; and a power tong mounted in the frame with the power tong extending transversely between the first fr... | 07/24/2001 |
| 6249947 | Tapered handle remover A Mohs tapered handle remover enables a user to remove a bit by rotating a knob on a first end of the device to actuate the device. The knob, through a threaded interface, drives a slide rod outward. The slide rod causes a raising block to separate from a... | 06/26/2001 |
| 6164165 | Tube spinner A tube spinner for assembling vehicle tie rod assemblies is disclosed. The tube spinner includes a support structure for supporting a tapped tube, a rotating device for rotating the tube within the support structure into threaded engagement with one or mo... | 12/26/2000 |
| 6142041 | Power tong support assembly A power tong positioning apparatus as disclosed herein is a power tong support positionable on the surface of drilling rig deck and attachable to at least one power tong. The power tong support is adapted to position at least one power tong so that it may... | 11/07/2000 |
| 5791206 | Drill pipe handling mechanism A breakout wrench for making and breaking joints between successive drill pipe in a drill string on a drilling rig includes a swing arm pivotable between a storage and a pipe gripping position. The swing arm carries a first and second pipe gripping jaw, t... | 08/11/1998 |
| 5727432 | Manually operable rod holder A manually operated mechanical rod holder has a support arm pivotally mounted on a drill rig chassis. A fixed jaw is mounted on an outboard end of the support arm. A movable jaw is mounted on a plate secured to a sleeve carried by the support arm. The sle... | 03/17/1998 |
| 5720542 | Tool system for reaching a confined location A hand tool system having a longitudinally extendable operating component and a longitudinally extendable support component for reaching a remote and/or confined location. The operating component includes a worm drive having a proximal end for attachment ... | 02/24/1998 |
| 5667026 | Positioning apparatus for a power tong A positioning apparatus for moving a power tong (110) between an operative and an inoperative position is a drilling tower (105) comprises a first arm (102) and a second arm (103). One end of the first arm (102) is pivotally connected to one end of the se... | 09/16/1997 |
| 5664310 | Combination power and backup tong support and method A support 10 is provided for supporting both a power tong PT and a backup tong BT during makeup of a threaded connection TC between a lower oilfield tubular LT and an upper oilfield tubular UT. The support 10 includes a plurality of legs 12 and 14 each ex... | 09/09/1997 |
| 5433128 | Sucker rod coupling tool and method A sucker rod coupling tool and method for either breaking or tightening the threaded joint between a sucker rod and the coupling that joins the sucker rod to the next sucker rod. A base plate has a backup wrench mounted to one end and a friction wrench ac... | 07/18/1995 |
| 5231899 | Drilling rig breakout wrench system A pair of bi-directional breakout wrenches on a drilling rig, each wrench including a body member having an inside cam surface with a plurality of locking cogs positioned around the cam surface, each cog being rotatably journaled on a shaft with a loose-f... | 08/03/1993 |
| 5125298 | Automatic wheel assembly mounting system An automatic wheel assembly mounting system, for use on a vehicular assembly line, in which an array of fastener members is prepared, corresponding in number and geometric pattern to the array of coacting fastener members on the vehicle hub and to the arr... | 06/30/1992 |
| 5123309 | Integrated spindle actuator assembly for nut-runners Disclosed is an integrated spindle actuator assembly for nut-runners wherein the spindle is pneumatically operated to engage and retract from the intended work device including an internal piston formed on the spindle end in conjunction with a spline whic... | 06/23/1992 |
| 5099725 | Torque transfer apparatus An apparatus for making up or breaking out of two members having mating threaded connections, such as pipe joints or bolts for avoiding undesirable transverse forces relative to the two members during tightening (or loosening), thereby insuring the connec... | 03/31/1992 |
