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:
Jan. 21, 2014
Filed:
Jan. 21, 2010
Applicant:
Khanh A. Duong, Sugar Land, TX (US);
Inventor:
Khanh A. Duong, Sugar Land, TX (US);
Assignee:
Vetco Gray Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ring like seal assembly for a wellhead assembly that seals between a pair of coaxial tubulars. The seal assembly includes a spring member for exerting an axial force on the seal. The spring member projects from an end of the seal assembly substantially parallel to the axis of the seal assembly and is compressed when installing the seal assembly between the tubulars. Compressing the spring member maintains an axial force on the seal assembly to keep the seal assembly radially deformed so that it can maintain sealing contact with both coaxial tubulars.