ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,557,203, issued on Feb. 17, was assigned to THE ESAB GROUP INC. (North Bethesda, Md.).
"Methods for operating a plasma torch" was invented by Ryan T. Lynaugh (Cornish, N.H.), Geoffrey Putnam (Charlestown, N.H.) and Christopher Vincent Braudis Sr. (Canaan, N.H.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for piercing and cutting a workpiece includes delivering a plasma gas at a first pressure through a process gas flow channel of a plasma torch while ionizing the plasma gas to produce a plasma arc that extends between an electrode of the torch and the workpiece. While the plasma gas is delivered at the first pressure, performing a piercing op...