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:
Nov. 12, 2019
Filed:
Mar. 25, 2015
Applicant:
Schlumberger Technology Corporation, Sugar Land, TX (US);
Inventor:
Christopher D. Nicholson, Cincinnati, OH (US);
Assignee:
Schlumberger Technology Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F15B 13/10 (2006.01); E21B 34/02 (2006.01); E21B 21/10 (2006.01); F15B 15/20 (2006.01); E21B 21/08 (2006.01);
U.S. Cl.
CPC ...
E21B 34/02 (2013.01); E21B 21/08 (2013.01); E21B 21/106 (2013.01); F15B 13/10 (2013.01); F15B 15/202 (2013.01); F15B 2211/3058 (2013.01); F15B 2211/324 (2013.01); F15B 2211/785 (2013.01); F15B 2211/8633 (2013.01); F15B 2211/8752 (2013.01);
Abstract
A hydraulic actuator comprises a chamber, a first line, a second line, and an auxiliary line. The chamber allows fluid to move therethrough and comprises a movable element therein. The first line is in fluid communication with the chamber. The second line is in fluid communication with the chamber. The auxiliary line connects the first line and the second line and comprises a valve to selectively allow fluid communication between the first line and the second line as the movable element is moved in the chamber.