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:
Jun. 13, 2017
Filed:
Nov. 10, 2014
Applicant:
Canrig Drilling Technology Ltd., Houston, TX (US);
Inventor:
Alex Kunec, Tomball, TX (US);
Assignee:
Canrig Drilling Technology Ltd., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/10 (2006.01); E21B 17/10 (2006.01); E21B 34/00 (2006.01);
U.S. Cl.
CPC ...
E21B 17/1078 (2013.01); E21B 21/106 (2013.01); E21B 2034/007 (2013.01);
Abstract
A fill-up and circulation tool includes a central assembly including a mandrel, a nose assembly disposed at a terminal end of the mandrel, an outer assembly coupled to the central assembly, and a valve configured to change position between a closed position and an open position, wherein changing position between the closed position and the open position includes movement of the outer assembly relative to the central assembly.