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:
Feb. 16, 2021
Filed:
Feb. 10, 2017
Applicant:
Dreco Energy Services Ulc, Edmonton, CA;
Inventors:
Assignee:
DRECO ENERGY SERVICES ULC, Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16J 15/32 (2016.01); F16J 15/16 (2006.01); E21B 33/06 (2006.01); F16J 15/3208 (2016.01);
U.S. Cl.
CPC ...
F16J 15/166 (2013.01); E21B 33/062 (2013.01); F16J 15/32 (2013.01); F16J 15/3208 (2013.01);
Abstract
A blowout preventer (BOP) and a seal anti-extrusion apparatus is provided for well control about a tubular such as a polish rod. Each of opposing ram blocks support a semi-circular primary seal and at least one downstream backup ring. An extrusion gap is formed between the ram block and the rod. The backup ring has profile that is axially compressible by the primary seal when activated, causing an inner diameter diminish, and closing the extrusion gap for improved sealing integrity of the primary seal.
McAdam, David. (2021). Anti-extrusion seal arrangement and ram-style blowout preventer (U.S. Patent No. 10920887). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10920887
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile