US Patent Issued to Hypertherm on April 22 for "Swirl ring and contact element for a plasma arc torch cartridge" (New Hampshire Inventors)

ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,441, issued on April 22, was assigned to Hypertherm Inc. (Hanover, N.H.).

"Swirl ring and contact element for a plasma arc torch cartridge" was invented by Yu Zhang (Hanover, N.H.), Jesse A. Roberts (Cornish, N.H.), Zheng Duan (Hanover, N.H.), Michael Scheller (Grantham, N.H.), David Agan (Enfield, N.H.), Steven Moody (Charlestown, N.H.), Stephen T. Eickhoff (Hanover, N.H.) and Garrett K. Quillia (Enfield, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A consumable cartridge for a plasma arc torch includes a cartridge frame having a first end and a second end opposite the first end, the first and second ends defining a longitudinal axis, the sec...