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:
Feb. 20, 2018
Filed:
Dec. 30, 2013
Applicant:
Vetco Gray Inc., Houston, TX (US);
Inventors:
Rick C. Hunter, Friendswood, TX (US);
Jon B. Kahn, Spring, TX (US);
Fabio Okamoto Tanaka, Houston, TX (US);
Assignee:
Vetco Gray Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 3/02 (2006.01); F16K 3/30 (2006.01); F16K 41/08 (2006.01); E21B 33/00 (2006.01);
U.S. Cl.
CPC ...
F16K 3/30 (2013.01); F16K 3/0227 (2013.01); F16K 3/0236 (2013.01); F16K 41/08 (2013.01); E21B 2033/005 (2013.01); F16K 3/0245 (2013.01); F16K 3/0281 (2013.01);
Abstract
A gate valve for use in oil field applications and including a seat seal assembly. The seat seal assembly includes primary, secondary, and tertiary seals for sealing the space between the seat rings and the valve body. The provision of multiple seals in the seat seal assembly provides redundancy that allows for maintenance of the seal between the components even if one or two of the individual seals fail.