ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,446,119, issued on Oct. 14, was assigned to Illinois Tool Works Inc. (Glenview, Ill.).

"Induction heating head" was invented by Paul D. Verhagen (Appleton, Wis.), Tiffany Anne Carter (Appleton, Wis.) and Alan Dale Sherrill (Appleton, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An induction heating system includes a power source and an induction head. The converter output is at a voltage that is not greater than the voltage applied to the coil. The induction head includes a housing that houses a conductive coil disposed to induce heat in a workpiece and the coil is wound to be tuned to the output power. The coil is wound in a stacked spiral patte...