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| Number | Title | Issue Date |
| 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 |
| 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 |
| 7036396 | Drill pipe spinner device In spinner tongs, a so-called spinner (30), incorporated in an iron roughneck and thus serving to rotate a drill pipe during connection thereof to a drill string or during division of the drill string into individual pipes, the aim has been to reduce damage o... | 05/02/2006 |
| 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 |
| 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 |
| 5660087 | Drill pipe spinner A drill pipe spinner is set forth. It is suspended under a hanger and has upper and lower mounting plates. An air motor with cooperative gear box is supported on the upper mounting plate and extends a rotatable shaft through the mounting plate to rotate a... | 08/26/1997 |
| 5129290 | Tool to aid in loosening and/or tightening threaded fastners, particularly in vehicle wheels A tool to aid in loosening and/or tightening a threaded fastener with respect to an article receiving the fastener, particularly a vehicle wheel, comprises a base member carrying a rotatably mounted applicator bar having a connector at one end to be coupl... | 07/14/1992 |
| 5070749 | Tool for use in loosening or tightening vehicle wheel fasteners A tool for loosening or tightening threaded fasteners on vehicle wheels includes an elongated base member having one end engageable with the ground for anchoring it, and an applicator bar rotatably mounted at the opposite end and carrying a connector for ... | 12/10/1991 |
| 5005654 | High torque hydraulic shoe bolt wrench A hydraulic shoe bolt wrench used to mount and remove shoe bolts which secure shoes to a track chain. The apparatus comprises a vertical cylinder stood upright on a frame moving on a work table, a main frame secured to a piston rod of the vertical cylinde... | 04/09/1991 |
| 4432257 | Shoe bolt securing and removing apparatus A shoe bolt securing and removing apparatus which includes a carriage movable along rails, a mounting framework movably supported on said carriage for movement transversely of said rails, a power driven rotary bolt turning tool mounted on said mounting fr... | 02/21/1984 |
| 4348920 | Well pipe connecting and disconnecting apparatus A power driven tool for making and breaking threaded connections in a well pipe is movable between a central position of alignment with the well axis, a second position offset from the well axis and above a mousehole, and a third retracted or inactive pos... | 09/14/1982 |
| 4297923 | Automatic tightener/loosener for intercell electrical connectors A remotely-controlled tightener for selectively tightening and loosening electrical connectors between electrolytic cells.... | 11/03/1981 |
| 4201270 | Roof bolter An operator controlled roof bolter with a flexible shaft drill and a roof bolt inserter for drilling and inserting a roof bolt into an unsupported roof of a mine while the operator is positioned at an outby station under a supported roof. The flexible sha... | 05/06/1980 |
