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. 23, 2017
Filed:
Jul. 31, 2014
Applicant:
Tesco Corporation, Houston, TX (US);
Inventors:
Doug Christian Greening, Calgary, CA;
Ryan Thomas Bowley, Calgary, CA;
Assignee:
Tesco Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/02 (2006.01); E21B 17/046 (2006.01); E21B 41/00 (2006.01);
U.S. Cl.
CPC ...
E21B 17/046 (2013.01); E21B 41/0021 (2013.01);
Abstract
The present disclosure is directed to a system for retention of drilling components of a drilling rig that includes a first drilling component with a first retention feature, a second drilling component with a second retention feature, and a secondary retention device. The first drilling component is coupled to the second drilling component and the secondary retention device engages with the first retention feature of the first drilling component and with the second retention feature of the second drilling component.