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Class Information
Number: 175/423
Name: Boring or penetrating the earth > Wedging slip assembly for supporting a pipe or rod
Description: Subject matter wherein a tapered clasping structure, when lowered into an opening in a separate hole drilling related structure, e.g., a spider or rotary table, is cammed into gripping and suspending engagement with a drilling tube or stem passing through the opening.


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7600450 Curvature conformable gripping dies Oct. 13, 2009
7552764 Tubular handling device Jun. 30, 2009
7527093 Self-tightening safety tubular clamp May. 5, 2009
7510033 Apparatus for vertically supporting pipes Mar. 31, 2009
7467676 Method and device for preventing pipeskidding Dec. 23, 2008
7455105 Apparatus and method for installing coiled tubing in a well Nov. 25, 2008
7448456 Adjustable rotating guides for spider or elevator Nov. 11, 2008
7419008 Power slip Sep. 2, 2008
7419000 Apparatus and method for securing pipes Sep. 2, 2008
7395855 Radially moving slips Jul. 8, 2008
7392864 Slip spool assembly and method of using same Jul. 1, 2008
7337861 Method and a device for preventing pipeskidding Mar. 4, 2008
7293618 Power slip for drillpipe Nov. 13, 2007
7267168 Spider with discrete die supports Sep. 11, 2007
7252161 Method and apparatus with slips assembly for coupling tubulars without interruption of circulation Aug. 7, 2007
7231984 Gripping insert and method of gripping a tubular Jun. 19, 2007
7228913 Tubular clamp apparatus for top drives and methods of use Jun. 12, 2007
7191840 Casing running and drilling system Mar. 20, 2007
7152674 Disconnect devices Dec. 26, 2006
7143849 Flush mounted spider Dec. 5, 2006
7134531 Heavy load carry slips and method Nov. 14, 2006
7125195 Locking means for an insert Oct. 24, 2006
7111676 Pipe centering device Sep. 26, 2006
7082991 Slip spring with heel notch Aug. 1, 2006
7036578 Tubing guide and coiled tubing injector May. 2, 2006
7032690 Apparatus and method for visually detecting wear to insert bowls, bushings, and spiders Apr. 25, 2006
6994176 Adjustable rotating guides for spider or elevator Feb. 7, 2006
6976534 Slip element for use with a downhole tool and a method of manufacturing same Dec. 20, 2005
6962205 Subsea wellhead landing clamp and slip bowl assembly Nov. 8, 2005
6948575 Slip manipulating apparatus Sep. 27, 2005
6915868 Elevator apparatus and method for running well bore tubing Jul. 12, 2005
6892835 Flush mounted spider May. 17, 2005
6848520 Bushing for a drilling rig Feb. 1, 2005
6845814 Pipe-gripping structure having load rings Jan. 25, 2005
6820705 Friction support assembly for a slip bowl Nov. 23, 2004
6732822 Method and apparatus for handling tubular goods May. 11, 2004
6640939 Snubbing unit with improved slip assembly Nov. 4, 2003
6516889 High-load big bore lock Feb. 11, 2003
6450385 Clamping ring in particular for oil duct Sep. 17, 2002
6394201 Tubing spider May. 28, 2002
6302410 Rod gripping jaw Oct. 16, 2001
6089338 Flush mounted self aligning spider Jul. 18, 2000
6079509 Pipe die method and apparatus Jun. 27, 2000
5984007 Chip resistant buttons for downhole tools having slip elements Nov. 16, 1999
5971086 Pipe gripping die Oct. 26, 1999
5860478 Sub-sea test tree apparatus Jan. 19, 1999
5848647 Pipe gripping apparatus Dec. 15, 1998
5609226 Slip-type gripping assembly Mar. 11, 1997
5484040 Slip-type gripping assembly Jan. 16, 1996
5452923 Coiled tubing connector Sep. 26, 1995

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