US Patent Issued to GM GLOBAL TECHNOLOGY OPERATIONS on Jan. 13 for "Method of improving lamination stack flatness and concentricity" (Michigan Inventor)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,525,858, issued on Jan. 13, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Method of improving lamination stack flatness and concentricity" was invented by John S. Agapiou (Rochester Hills, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of forming a stack of laminates for a stator includes stamping in sequence a plurality of annular stator laminates from a continuous sheet of metal. The annular stator laminates each including an interior surface with a plurality of winding teeth and an exterior surface with a plurality of circumferentially spaced radially protruding ears wherein the plurality of circumferentially spaced r...