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:
Sep. 01, 2009
Filed:
Mar. 21, 2007
Applicants:
Larry E. Reimert, Houston, TX (US);
James M. Walker, Houston, TX (US);
Inventors:
Larry E. Reimert, Houston, TX (US);
James M. Walker, Houston, TX (US);
Assignee:
Dril-Quip, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/128 (2006.01);
U.S. Cl.
CPC ...
Abstract
A downhole toolincludes a closure seatfor seating with a closure, such as a ball. Shear pins or other connectors temporarily limit axial movement of the closure seat which is initially housed within a restricted diameter portion of the central throughbore in the tool body. The closure seat may be lowered to engage a stopthereby positioning the seat within an enlarged diameter bore portion of the tool and allowing radial expansion of a closure seat to release the ball.