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:
Mar. 13, 2018
Filed:
Oct. 31, 2014
Applicant:
Petrowell Limited, Aberdeen, GB;
Inventors:
Lee Mercer, Aberdeen, GB;
Stewart Christie, Aberdeen, GB;
Assignee:
Weatherford Technology Holdings, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 43/16 (2006.01); E21B 33/12 (2006.01); E21B 23/02 (2006.01); E21B 33/035 (2006.01);
U.S. Cl.
CPC ...
E21B 33/1208 (2013.01); E21B 23/02 (2013.01); E21B 33/035 (2013.01);
Abstract
A seal element for sealing a conduit is described. The seal element comprises a frusto conical portion and a first lip extending from an external edge of the frusto conical portion, the lip being adapted to be pivoted into engagement with a conduit surface. In a described embodiment, two seal elements are provided on a plug for sealing a conduit, the seal elements facing in opposite directions to seal from above and below.