Overshot tool

Details Overshot tool Overshot tool

2007-03-05

2009-11-17

Wright, Giovanna C (Department: 3672)

Wells

Grapple and well anchored lifting means

C166S301000, C294S086260, C294S086220, C294S086310

Reexamination Certificate

active

07617867

ABSTRACT:
An overshot tool includes a grapple, a torque sub rotationally fixed to the grapple and a deformable member in operable communication with the torque sub. The torque sub is responsive to torsional movement thereof. A method for retrieving a fish with the tool is also included.

REFERENCES:
patent: 2687323 (1954-08-01), Stohn
patent: 2814523 (1957-11-01), Stolm
patent: 3667547 (1972-06-01), Ahlstone
patent: 4291768 (1981-09-01), Diehl
patent: 5829524 (1998-11-01), Flanders et al.
patent: 6896049 (2005-05-01), Moyes
patent: 2005/0072579 (2005-04-01), Gambier
Zeroth Technology Limited Homepage, www.zertech.com.

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