ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,934, issued on June 24, was assigned to TDW Delaware Inc. (Wilmington, Del.).
"Activation system for pipeline plug" was invented by Paul Giles (Houston) and Humon Glenn Fardsalehi (Baton Rouge, La.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pipeline plug includes a plug body. The plug body includes an outer housing. The interior of the outer housing defines a pressure vessel. The pipeline plug includes a pressure head coupled to the plug body, a seal assembly, a gripper assembly, a movable head, and an actuation mechanism. The actuation mechanism includes a leadscrew, the leadscrew coupled to the movable head. The actuation mechanism includes ...