US Patent Issued to Hydra-Stop on March 17 for "Insertion valves and methods of installing insertion valves in pressurized pipes" (Illinois Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,050, issued on March 17, was assigned to Hydra-Stop LLC (Burr Ridge, Ill.).

"Insertion valves and methods of installing insertion valves in pressurized pipes" was invented by Andrew J. Stolson (Chicago), Cullen J. Geppert (Chicago), Ariel Choi (Chicago) and Nathan Smrha (Brookfield, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for cutting an existing pipe carrying a fluid under pressure include using a cutting assembly having first and second linear cutters spaced by a lateral width. The cutters are moved from a retracted position to an extended position thereby to cut a coupon from the existing pipe. An insertion valve m...