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Class Information
Number: 166/77.53
Name: Wells > Above ground apparatus > With means facilitating connecting or disconnecting supported tubing or rod sections > Upper and lower slips
Description: Device for connecting sections including wedge-shaped members, usually with a serrated face, located near the pipe or bar at the top and bottom.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7322406 |
Elevation sensor for a service hose and an apparatus for positioning and stabbing well tubulars |
Jan. 29, 2008 |
| 7293618 |
Power slip for drillpipe |
Nov. 13, 2007 |
| 7284624 |
Drill gripping device and method |
Oct. 23, 2007 |
| 7284617 |
Casing running head |
Oct. 23, 2007 |
| 7281587 |
Apparatus and methods for tubular makeup interlock |
Oct. 16, 2007 |
| 7267168 |
Spider with discrete die supports |
Sep. 11, 2007 |
| 7117938 |
Drill pipe connecting and disconnecting apparatus |
Oct. 10, 2006 |
| 7086461 |
Combined grip control of elevator and spider slips |
Aug. 8, 2006 |
| 7025147 |
Apparatus for, and method of, landing items at a well location |
Apr. 11, 2006 |
| 6997265 |
Method and apparatus for offline standbuilding |
Feb. 14, 2006 |
| 6976540 |
Method and apparatus for offline standbuilding |
Dec. 20, 2005 |
| 6880630 |
Guide support for rig mounted continuous feed injection unit |
Apr. 19, 2005 |
| 6854520 |
Apparatus and method for handling a tubular |
Feb. 15, 2005 |
| 6845814 |
Pipe-gripping structure having load rings |
Jan. 25, 2005 |
| 6820705 |
Friction support assembly for a slip bowl |
Nov. 23, 2004 |
| 6793020 |
Mechanical torque table and method |
Sep. 21, 2004 |
| 6742596 |
Apparatus and methods for tubular makeup interlock |
Jun. 1, 2004 |
| 6644413 |
Method of landing items at a well location |
Nov. 11, 2003 |
| 6640939 |
Snubbing unit with improved slip assembly |
Nov. 4, 2003 |
| 6591904 |
Equipment for stowing and handling drill pipes |
Jul. 15, 2003 |
| 6435280 |
Making and breaking of couplings between pipe sections in a drilling rig |
Aug. 20, 2002 |
| 6386284 |
Snubbing unit drilling system |
May. 14, 2002 |
| 6378614 |
Method of landing items at a well location |
Apr. 30, 2002 |
| 6364012 |
Drill pipe handling apparatus |
Apr. 2, 2002 |
| 6349764 |
Drilling rig, pipe and support apparatus |
Feb. 26, 2002 |
| 6276450 |
Apparatus and method for rapid replacement of upper blowout preventers |
Aug. 21, 2001 |
| 6213216 |
Snubbing unit tong apparatus |
Apr. 10, 2001 |
| 6138776 |
Power tongs |
Oct. 31, 2000 |
| 6047775 |
Blast hole drill pipe gripping mechanism |
Apr. 11, 2000 |
| 5988274 |
Method of and apparatus for inserting pipes and tools into wells |
Nov. 23, 1999 |
| 5931231 |
Blast hole drill pipe gripping mechanism |
Aug. 3, 1999 |
| 5909768 |
Apparatus and method for improved tubular grip assurance |
Jun. 8, 1999 |
| 5813468 |
Dual casing hanger |
Sep. 29, 1998 |
| 5806589 |
Apparatus for stabbing and threading a drill pipe safety valve |
Sep. 15, 1998 |
| 5791410 |
Apparatus and method for improved tubular grip assurance |
Aug. 11, 1998 |
| 5645131 |
Device for joining threaded rods and tubular casing elements forming a string of a drilling rig |
Jul. 8, 1997 |
| 5388652 |
Apparatus on a drilling tower for gripping a drill casing |
Feb. 14, 1995 |
| 5388647 |
Sucker rod back off tool |
Feb. 14, 1995 |
| 5311937 |
Extractor for an injection pipe |
May. 17, 1994 |
| 5092399 |
Apparatus for stabbing and threading a drill pipe safety valve |
Mar. 3, 1992 |
| 4974686 |
Apparatus for handling a drilling equipment |
Dec. 4, 1990 |
| 4813493 |
Hydraulic top drive for wells |
Mar. 21, 1989 |
| 4765401 |
Apparatus for handling well pipe |
Aug. 23, 1988 |
| RE32642 |
Pipe base well screen and system for joining a plurality of well screen segments |
Apr. 12, 1988 |
| 4676312 |
Well casing grip assurance system |
Jun. 30, 1987 |
| 4591007 |
Well tubing handling apparatus |
May. 27, 1986 |
| 4570706 |
Device for handling rods for oil-well drilling |
Feb. 18, 1986 |
| 4567952 |
Process and apparatus for locking and releasing of a drilling shaft with essentially vertical axis |
Feb. 4, 1986 |
| 4509600 |
Pipe base well screen and system for joining a plurality of well screen segments |
Apr. 9, 1985 |
| 4348920 |
Well pipe connecting and disconnecting apparatus |
Sep. 14, 1982 |
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