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:
Sep. 08, 2026
Filed:
Mar. 03, 2023
Tdw Delaware, Inc., Wilmington, DE (US);
Roger L. Poe, Beggs, OK (US);
Jon Maslen, Sand Springs, OK (US);
Qi Li, Houston, TX (US);
Kolton Landreth, Jenks, OK (US);
TDW Delaware, Inc., Wilmington, DE (US);
Abstract
Embodiments of a plugging tool () of this disclosure a control bar head () and at least one sealing head () pivotally connected to the control bar head, the control bar head including a stress suppressor () located at a lower end () of the control bar head, the stress suppressor including an elastomeric element (). The stress suppressor can act as a dual-stage suppressor, there being a primary (first stage) and a secondary (second stage) stress suppressor or zone (A,B). The primary stress suppressor has an arched-shaped lowermost end () located between a pair of spaced-apart feet () of the control bar head, the feet having lateral edges () and comprising the secondary stress suppressor. During rotation of the tool into the pipe, stress to the pipe is reduced in a range of 5X to 14X relative to a plugging tool without the stress suppressor.