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:
May. 12, 2015
Filed:
Aug. 25, 2011
Steven R. Radford, The Woodlands, TX (US);
John G. Evans, The Woodlands, TX (US);
Bruce Stauffer, Spring, TX (US);
Johannes Witte, Braunschweig, DE;
Steven R. Radford, The Woodlands, TX (US);
John G. Evans, The Woodlands, TX (US);
Bruce Stauffer, Spring, TX (US);
Johannes Witte, Braunschweig, DE;
Baker Hughes Incorporated, Houston, TX (US);
Abstract
An apparatus for use downhole is disclosed. The apparatus includes a downhole device and an actuation device that includes: a housing including an annular chamber configured to house a first fluid therein and a piston in the annular chamber that divides the annular chamber into a first section and a second section. The piston is to a biasing member. A control unit enables movement of the first fluid from the first section to the second section to supply a second fluid under pressure to the tool to move the tool into an active position and from the second section to the first section to stop the supply of the second fluid to the tool to cause the tool to move into an inactive position.