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Class Information
Number: 294/86.15
Name: Handling: hand and hoist-line implements > Grapple > Well type > With separate grapple-setting operator > Fluid pressure operator
Description: Grapples wherein the separate means comprises a fluid reactive element which moves by fluid pressure to move the grappling means.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7096952 |
Latch mechanism guide |
Aug. 29, 2006 |
| 6827148 |
Downhole tool for use in a wellbore |
Dec. 7, 2004 |
| 6719052 |
Latch mechanism guide |
Apr. 13, 2004 |
| 6431626 |
Tubular running tool |
Aug. 13, 2002 |
| 6309002 |
Tubular running tool |
Oct. 30, 2001 |
| 6142545 |
Casing pushdown and rotating tool |
Nov. 7, 2000 |
| 6095583 |
Wellbore fishing tools |
Aug. 1, 2000 |
| 5791712 |
Spear fishing tool |
Aug. 11, 1998 |
| 5765638 |
Tool for use in retrieving an essentially cylindrical object from a well bore |
Jun. 16, 1998 |
| 5639135 |
Fishing tool and method of operation |
Jun. 17, 1997 |
| 5605366 |
External pulling tool and method of operation |
Feb. 25, 1997 |
| 5580114 |
Hydraulically actuated fishing tool |
Dec. 3, 1996 |
| 5242201 |
Fishing tool |
Sep. 7, 1993 |
| 4951988 |
Casing hanger packoff retrieving tool |
Aug. 28, 1990 |
| 4759903 |
Apparatus for automatically starting the drop of an absorbing member into a nuclear reactor core |
Jul. 26, 1988 |
| 4750770 |
Device for connecting a drill column to a pipe or the like |
Jun. 14, 1988 |
| 4705314 |
Tool loading device |
Nov. 10, 1987 |
| 4585369 |
Mechanical connection means |
Apr. 29, 1986 |
| 4550941 |
Hydraulic drive mechanism |
Nov. 5, 1985 |
| 4443130 |
Remotely operated tool for performing functions under water |
Apr. 17, 1984 |
| 4368911 |
Subsurface conduit setting and pulling tool |
Jan. 18, 1983 |
| 4320915 |
Internal elevator |
Mar. 23, 1982 |
| 4273372 |
Apparatus for use in lowering casing strings |
Jun. 16, 1981 |
| 4244616 |
Tool for exchanging and transporting irradiation capsules of a nuclear reactor |
Jan. 13, 1981 |
| 4100968 |
Technique for running casing |
Jul. 18, 1978 |
| 4052861 |
Inflatable securing arrangement |
Oct. 11, 1977 |
| 3950020 |
Gripping device |
Apr. 13, 1976 |
| 3944273 |
Retrieving tool for wellhead packing |
Mar. 16, 1976 |
| 3941413 |
Quick release latch for reactor scram |
Mar. 2, 1976 |
| 3936089 |
Gripping device for a lifting mechanism, especially in a core reactor for depositing and picking up fuel elements and control rods |
Feb. 3, 1976 |
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