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:
Aug. 12, 2025
Filed:
Dec. 01, 2021
Applicant:
Deltatek Oil Tools Limited, Aberdeen, GB;
Inventors:
Tristam Paul Horn, Westhill, GB;
Stephen Edmund Bruce, Blairgowrie, GB;
David Michael Shand, Banchory, GB;
Tyler Rhes Reynolds, Magnolia, TX (US);
Assignee:
EXPRO NORTH SEA LIMITED, Dyce, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/06 (2006.01); E21B 33/12 (2006.01); E21B 33/13 (2006.01); E21B 37/04 (2006.01); E21B 43/10 (2006.01);
U.S. Cl.
CPC ...
E21B 17/06 (2013.01); E21B 33/12 (2013.01); E21B 33/13 (2013.01); E21B 37/045 (2013.01); E21B 43/10 (2013.01);
Abstract
A coupling connects an inner string to a lower end of a bore-lining tubing, such as a liner. The coupling includes a catcher and may be provided in combination with at least one member for translating through the inner string and landing in the catcher. The member may be an occluding member, such as a ball for occluding a flow passage through the coupling.