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:
Dec. 25, 2018
Filed:
Nov. 20, 2015
Applicant:
Weatherford Technology Holdings, Llc, Houston, TX (US);
Inventors:
Zlatko Salihbegovic, New Iberia, LA (US);
Aaron Michael Henry Ranson, Lafayette, LA (US);
Assignee:
WEATHERFORD TECHNOLOGY HOLDINGS, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/12 (2006.01); F16K 31/126 (2006.01); F16K 39/02 (2006.01); E21B 34/10 (2006.01);
U.S. Cl.
CPC ...
E21B 43/123 (2013.01); F16K 31/126 (2013.01); F16K 39/02 (2013.01); E21B 34/10 (2013.01); Y10T 137/7836 (2015.04);
Abstract
Embodiments of the present disclosure generally relate gas lift valves for use in hydrocarbon wells for artificial lift operations. One embodiment of the present disclosure is a valve. The valve comprises a housing and a bellows disposed in the housing. A first side of the bellows is in fluid communication with an inlet of the housing, and a second side of the bellows faces a closed chamber in the housing. The valve further comprises a barrier assembly disposed in the closed chamber.