The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 13, 1976
Filed:
Jul. 29, 1974
Pierre Goldschild, Paris, FR;
Bernard Doremus, Fontainebleau, FR;
Schlumberger Technology Corporation, New York, NY (US);
Abstract
In accordance with an illustrative embodiment of the present invention as disclosed herein, a wireline pulling and running tool can be preset at the surface by simple adjustment for functioning as either a pulling or a running tool, and for release from an associated hanger mandrel by jarring either upwardly or downwardly. A tubular support that carries pivotally mounted gripping elements which are yieldably urged toward disengaged position, has a control body movably mounted therein. The control body has a plurality of sets of circumferentially spaced recess means than can be selectively aligned with the gripping members to enable release thereof in response to vertical movement of the control body from an initial upper or lower position where the body is releasably fixed to the support by a shear pin.