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:
Feb. 05, 2013
Filed:
May. 04, 2009
Martin Liess, Seelze, DE;
John D. Hooker, Ii, Langenhagen, DE;
Reinhard Grosch, Geisa OT Otzbach, DE;
Thomas Kotschy, Burgdorf, DE;
Andreas Carlsson, Sehnde, DE;
Martin Liess, Seelze, DE;
John D. Hooker, II, Langenhagen, DE;
Reinhard Grosch, Geisa OT Otzbach, DE;
Thomas Kotschy, Burgdorf, DE;
Andreas Carlsson, Sehnde, DE;
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
In one embodiment, a tubular gripping assembly for use with a top drive to handle a tubular includes a tubular gripping tool having a mandrel and gripping elements operatively coupled to the mandrel; and a link assembly attached to the mandrel, wherein a load of the link assembly is transferred to the mandrel. In another embodiment, the tubular gripping assembly includes a swivel having selectively actuatable seals. In yet another embodiment, the tubular gripping assembly includes a thread compensator to facilitate tubular make-up. In yet another embodiment, the tubular gripping assembly includes a wedge lock release apparatus to facilitate the release of gripping elements from the tubular.