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. 17, 2007
Filed:
Jan. 07, 2005
Ronald Williams, Broken Arrow, OK (US);
Van Mcvicker, Broken Arrow, OK (US);
Scott Strattan, Tulsa, OK (US);
Jason B. Ives, Broken Arrow, OK (US);
Ronald Williams, Broken Arrow, OK (US);
Van McVicker, Broken Arrow, OK (US);
Scott Strattan, Tulsa, OK (US);
Jason B. Ives, Broken Arrow, OK (US);
Baker Hughes Incorporated, Houston, TX (US);
Abstract
A flapper valve assembly is described having an equalizing port assembly with a bleed valve member that is moveable between an open position and a closed position. The equalizing port assembly features a structural support member in the form of a retainer key that is secured to the flapper valve member both axially and radially. Additionally, a compressible spring is located between the structural support member and provides biasing force upon the valve member to urge it toward a closed position. Additionally, the flapper valve member presents a pair of raised, substantially flat actuator contact portions upon its downstream face to meet an actuating tube in a mating contact arrangement and resist material deformation that could tend to clog or block the equalizing fluid flow port.