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:
Jul. 14, 2015
Filed:
Oct. 10, 2011
Applicants:
James R. Streater, Jr., Humble, TX (US);
Jose Saldana, Houston, TX (US);
Daniel Hernandez, Jr., Pasadena, TX (US);
Inventors:
James R. Streater, Jr., Humble, TX (US);
Jose Saldana, Houston, TX (US);
Daniel Hernandez, Jr., Pasadena, TX (US);
Assignee:
NATIONAL OILWELL VARCO, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 31/18 (2006.01); F16J 15/06 (2006.01); E21B 33/00 (2006.01);
U.S. Cl.
CPC ...
E21B 31/18 (2013.01); F16J 15/067 (2013.01); E21B 2033/005 (2013.01); Y10T 29/49826 (2015.01);
Abstract
A three-ring seal assembly is provided to seal across extrusion gaps of varying size when used during down hole fishing operations.