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:
Jan. 04, 2022
Filed:
Jun. 02, 2020
Larry Thomas Palmer, Spring, TX (US);
Erik Van Steveninck, Houston, TX (US);
Erik Vilhelm Nordenstam, The Woodlands, TX (US);
Eric Anders Erickson, Bozeman, MT (US);
Scott Bigrigg, Canonsburg, PA (US);
Larry Thomas Palmer, Spring, TX (US);
Erik Van Steveninck, Houston, TX (US);
Erik Vilhelm Nordenstam, The Woodlands, TX (US);
Eric Anders Erickson, Bozeman, MT (US);
Scott Bigrigg, Canonsburg, PA (US);
BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US);
Abstract
A downhole tool includes a tubular having an outer surface and an inner surface defining a flowbore having a longitudinal axis and a backpressure valve arranged in the flowbore. The backpressure valve includes a flapper valve including a hinge end, a cantilevered end, a first side and an opposing second side pivotally mounted to the inner surface at the hinge end to selectively extend across the flowbore, and a locking system mounted to the inner surface adjacent to the hinge end of the flapper valve in the flowbore. The flapper valve is pivotable between a first position, wherein the flapper valve is free to pivot relative to the inner surface between an open configuration and a closed configuration, and a second position, wherein the hinge end of the flapper valve activates the locking system to lock the flapper valve in the open configuration.