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:
May. 26, 2020
Filed:
Aug. 10, 2016
Applicant:
National Oilwell Varco, L.p., Houston, TX (US);
Inventors:
Lydia Mata Mireles, Houston, TX (US);
Sergio Garcia, Spring, TX (US);
Nathan Follett, Houston, TX (US);
Assignee:
National Oilwell Varco, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/06 (2006.01); E21B 33/00 (2006.01);
U.S. Cl.
CPC ...
E21B 33/06 (2013.01); E21B 2033/005 (2013.01);
Abstract
A blowout preventer is disclosed that includes a housing defining a central passage. The central passage is configured to receive a tubular string therethrough. In addition, the blowout preventer includes a packing element disposed in the central passage. The packing element includes an elastomeric member, and a rigid insert mounted to the elastomeric member. The insert includes an extendable tip assembly configured to extend a movable member away from the rigid insert.