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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 3

Patent Number Title Of Patent Date Issued
8678112 Slip device for suspending a drill or casing string in a drill floor Mar. 25, 2014
8235105 Mouse hole support unit with rotatable or stationary operation Aug. 7, 2012
8157004 Pipe handling apparatus Apr. 17, 2012
8061418 Method of running a pipe string having an outer diameter transition Nov. 22, 2011
8042626 Gripping tool Oct. 25, 2011
8020627 Equalized load distribution slips for spider and elevator Sep. 20, 2011
8002027 Method of running a pipe string having an outer diameter transition Aug. 23, 2011
7997333 Segmented bottom guide for string elevator assembly Aug. 16, 2011
7992634 Adjustable pipe guide for use with an elevator and/or a spider Aug. 9, 2011
7980298 Wedge device Jul. 19, 2011
7967086 Slip spool assembly and method of using same Jun. 28, 2011
7926577 Methods and apparatus for supporting tubulars Apr. 19, 2011
7909120 Gripping tool Mar. 22, 2011
7896111 Gripping tool with driven screw grip activation Mar. 1, 2011
7861773 Retrievable bridge plug Jan. 4, 2011
7832470 Mouse hole support unit with rotatable or stationary operation Nov. 16, 2010
7775270 Spider with distributed gripping dies Aug. 17, 2010
7762343 Apparatus and method for handling pipe Jul. 27, 2010
7743856 Slip spool assembly and method of using same Jun. 29, 2010
7703554 Slip groove gripping die Apr. 27, 2010
7686088 Equalized load distribution slips for spider and elevator Mar. 30, 2010
7681649 Power slips Mar. 23, 2010
7665551 Flush mounted spider Feb. 23, 2010
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

1 2 3

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