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:
Apr. 04, 2006
Filed:
Aug. 25, 2005
Albert S. Davis, Richmond, TX (US);
John M. Saldivar, Richmond, TX (US);
David R. Mefford, The Woodlands, TX (US);
Frank J. Arriens, Houston, TX (US);
Daryl L. Ard, Kemah, TX (US);
Albert S. Davis, Richmond, TX (US);
John M. Saldivar, Richmond, TX (US);
David R. Mefford, The Woodlands, TX (US);
Frank J. Arriens, Houston, TX (US);
Daryl L. Ard, Kemah, TX (US);
Cooper Cameron Corporation, Houston, TX (US);
Abstract
A hydraulic control system for a valve actuator comprising a first control valve that regulates fluid communication from a fluid pressure source to a first fluid supply tank that is fluidly connected to the valve actuator. A second control valve regulates fluid communication from the fluid pressure source to a second fluid supply tank that is fluidly connected to the valve actuator. A flow control member regulates fluid communication between the first and second fluid supply tanks and an exhaust valve that regulates fluid communication between the first and second fluid supply tanks and an outlet.