US Patent Issued to Hypertherm on Oct. 21 for "Jacket for a cartridge of a liquid-cooled plasma arc torch" (New Hampshire, Vermont Inventors)

ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,447,548, issued on Oct. 21, was assigned to Hypertherm Inc. (Hanover, N.H.).

"Jacket for a cartridge of a liquid-cooled plasma arc torch" was invented by Stephen M. Dunbar (Lebanon, N.H.), Christopher Pillsbury (Lebanon, N.H.), Micah Roberts (Lebanon, N.H.) and David L. Bouthillier (Hartford, Vt.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A jacketed consumable cartridge is provided for a liquid cooled plasma arc torch. The jacketed consumable cartridge comprises an electrode, a swirl ring securely affixed to and disposed circumferentially about a distal end of the electrode, and a nozzle securely affixed to the swirl ring, the nozzle disposed circum...