ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,025, issued on Oct. 28.
"Method and system for joining metal workpieces to provide a workpiece assembly" was invented by Paul Po Cheng (London, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and a system of forming a workpiece assembly including an intermediate element between first and second workpieces. A ring element is included in or on the intermediate element. The ring element is for rotating the intermediate element about the intermediate elements axis. With heating elements positioned between the intermediate element and the first and second ends of the first and second workpieces, portions of the intermediate element and the...