US Patent Issued to Illinois Tool Works on May 6 for "Method and system for short-arc welding" (Wisconsin Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,888, issued on May 6, was assigned to Illinois Tool Works Inc. (Glenview, Ill.).

"Method and system for short-arc welding" was invented by Craig S. Knoener (Appleton, Wis.), Jake B. Zwayer (Appleton, Wis.) and Zackary W. MacMullen (Larsen, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for providing short arc welding-type power is disclosed. The system includes a power supply, a wire feeder, and a controller. The output current is decreased at dive rate when the arc forms. The dive rate is maintained until the currents drops to a threshold, preferably a function of the peak short current in that cycle. Then the current is...