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:
May. 01, 2012
Filed:
Jul. 01, 2009
Charles Michael Webre, Lafayette, LA (US);
Brennan Scott Domec, Lafayette, LA (US);
Vernon J. Bouligny, New Iberia, LA (US);
Charles Michael Webre, Lafayette, LA (US);
Brennan Scott Domec, Lafayette, LA (US);
Vernon J. Bouligny, New Iberia, LA (US);
Frank's casing Crew & Rental Tools, Inc., Lafayette, LA (US);
Abstract
An internally gripping tong to rotate tubular segments comprising a central cam body rotatably disposed within a housing having a plurality of windows. The cam body is surrounded by a plurality of angularly distributed gripping jaws slidably received within the windows. The tong is disposed within a bore of a tubular segment, and rotation of the housing relative to the cam body deploys the gripping jaws radially outwardly within the windows to engage the interior wall of the tubular segment. The tong may be self-energizing in both the make-up and the break-out modes of operation. The tong may be deployed to grip the tubular segment using a device to frictionally couple the housing to the tubular segment that cooperates with the top drive assembly, or by an internal actuator that imparts rotation to the housing relative to the cam body.