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:
Jun. 30, 2015
Filed:
Feb. 03, 2012
Christopher Dale Johnson, Cypress, TX (US);
James William Weir, Houston, TX (US);
Dean Allen Bennett, Houston, TX (US);
Christopher Dale Johnson, Cypress, TX (US);
James William Weir, Houston, TX (US);
Dean Allen Bennett, Houston, TX (US);
National Oilwell Varco, L.P., Houston, TX (US);
Abstract
The techniques herein relate to a blowout preventer a wellhead of a wellbore penetrating a subterranean formation. The blowout preventer includes a housing having a bore therethrough, a segment carrier positionable in the housing, and a piston. The segment carrier includes a carrier ring for receiving the mandrel and a plurality of segments pivotally movable radially thereabout. The piston is operatively connectable to the plurality of segments and actuatable for moving the plurality of segments between a disengaged and an engaged position about the mandrel.