ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,442,478, issued on Oct. 14, was assigned to Team Industrial Services Inc. (Sugar Land, Texas).
"Pipe isolation device with seal" was invented by Brian Michael Gresh (Sugar Land, Texas) and David Benjamin Aldren (Sugar Land, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pipe isolation device and method of using the same. The pipe isolation device includes a control bar head, a first sealing head, and a second sealing head. The first sealing head has a first seal element and a first sliding engagement. The first sliding engagement permits the first sealing head to slide relative to the control bar head along a first fixed path and traverse a righ...