ALEXANDRIA, Va., March 12 -- United States Patent no. 12,246,405, issued on March 11.
"Method for repairing rail wheels" was invented by Paul Po Cheng (London, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of repairing a rail wheel including removing a selected segment of a rim of the rail wheel to provide a remaining segment having a first engagement surface, and providing a replacement workpiece including a replacement body element having a second engagement surface formed to mate with the first engagement surface. The replacement workpiece is positioned to define a predetermined gap between the first and second engagement surfaces. One or more heating elements are positioned in the predet...