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. 10, 1998
Filed:
Feb. 14, 1997
Applicant:
Inventors:
Michael A Carmody, Houston, TX (US);
Kevin R Jones, Humble, TX (US);
Robert J Coon, Houston, TX (US);
Douglas J Murray, Humble, TX (US);
Mark E Hopmann, Alvin, TX (US);
Steven L Jennings, Friendswood, TX (US);
Assignee:
Baker Hughes Incorporated, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166 53 ; 13762548 ; 13762568 ; 166 666 ; 166 667 ;
Abstract
A downhole controller for a flow control device. The controller is responsive to commands from the surface or from downhole and controls the flow device using a four way solenoid actuated spool valve and a hydraulically actuated piston system connected to the flow control device.