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. 04, 2012
Filed:
Apr. 28, 2010
Adam Wright, McKinney, TX (US);
Donald Herbert Perkins, Allen, TX (US);
Michael Linley Fripp, Carrollton, TX (US);
Scott Luke Miller, Highland Village, TX (US);
Adam Wright, McKinney, TX (US);
Donald Herbert Perkins, Allen, TX (US);
Michael Linley Fripp, Carrollton, TX (US);
Scott Luke Miller, Highland Village, TX (US);
Halliburton Energy Services, Inc., Houston, TX (US);
Abstract
A downhole actuator apparatus that selectively maintains a pressure differential between two pressure regions in a well. The apparatus includes a body defining first and second chambers. A piston is slidably disposed in the body and is selectively moveable between first and second positions. A barrier is disposed in the body to selectively separate the first and second chambers. A fluid is disposed in the first chamber between the barrier and the piston. A control system that is at least partially disposed within the body is operable to generate an output signal responsive to receipt of a predetermined input signal. The output signal is operable to create a failure of the barrier such that at least a portion of the fluid flows from the first chamber to the second chamber and the piston moves from the first position to the second position.