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. 21, 2009
Filed:
Nov. 10, 2006
Dewayne M. Turner, Tomball, TX (US);
Richard J. Ross, Houston, TX (US);
Kenneth E. Rozek, Houston, TX (US);
Todd Chretien, Lafayette, LA (US);
Dewayne M. Turner, Tomball, TX (US);
Richard J. Ross, Houston, TX (US);
Kenneth E. Rozek, Houston, TX (US);
Todd Chretien, Lafayette, LA (US);
BJ Services Company, Houston, TX (US);
Abstract
A hydraulic sleeve valve is disclosed that comprises a bypass relief system that provides an indication that the valve has reached a predetermined position, such as, for example, the fully opened or fully closed condition. The bypass relief may also provide a valve control fluid circulation function to filter or otherwise manipulate the control fluid. Also disclosed are flow port alignment systems that maintain the valve flow ports in predetermined relationships.