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:
Mar. 05, 2013
Filed:
Dec. 07, 2010
John Pettit, Camarillo, CA (US);
John Pettit, Camarillo, CA (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
A rod tong assembly has inner and outer rings. The outer ring has rollers disposed about a central opening. The inner ring disposes in the outer ring and has three jaws for engaging a rod element. The outer ring is rotated clockwise to make a rod connection and is rotated counter-clockwise to break the rod connection. When rotated, the rollers pivot the opposing jaws pivot against flats of the rod element. Further rotation of the outer ring then rotates the inner ring to respectively tighten or loosen the connection. To return the assembly to its default condition, operators switch a lock disposed on the inner ring to a return condition. When the outer ring is then rotated back, the lock catches on the outer ring and allows the inner ring to rotate in the same direction as the outer ring.