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.

Date of Patent:
Oct. 20, 2015

Filed:

Jul. 22, 2011
Applicants:

Rick C. Hunter, Houston, TX (US);

Khanh Anh Duong, Houston, TX (US);

Inventors:

Rick C. Hunter, Houston, TX (US);

Khanh Anh Duong, Houston, TX (US);

Assignee:

Vetco Gray Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 25/00 (2006.01); F16K 3/36 (2006.01); F16K 3/02 (2006.01);
U.S. Cl.
CPC ...
F16K 25/005 (2013.01); F16K 3/0263 (2013.01); F16K 3/36 (2013.01);
Abstract

A coating for use in protecting surfaces susceptible to environmental degradation. The coating may be applied to metallic surfaces for providing a barrier against elements and/or ambient conditions that would otherwise degrade the surface material. The coating includes multiple layers, where a thermoplastic polymer is included, wholly or partly, within one or more of the layers. Example applications of the coating are for protecting valve seat seals and valve stem seals of a valve assembly used in conjunction with handling of fluids produced from a subterranean formation.


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