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. 20, 2025
Filed:
Jun. 01, 2023
Applicant:
Epic Lift Systems, Houston, TX (US);
Inventor:
Douglas Wayne Davison, Canyon Lake, TX (US);
Assignee:
TALLY USA, LLC, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01); E21B 34/06 (2006.01);
U.S. Cl.
CPC ...
E21B 33/12 (2013.01); E21B 34/06 (2013.01);
Abstract
An improved plug with shuttle valve is disclosed. The improved plug has a bore in which a shuttle valve travels between stops in the bore. The traveling shuttle valve serves to reduce wellbore pressure across at least portions of the plug, thereby at least reducing the possibility of damage resulting from undue wellbore pressure and leak spots.