US Patent Issued to GM GLOBAL TECHNOLOGY OPERATIONS on Sept. 1 for "Wedge for an electric motor" (Michigan Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,070, issued on Sept. 1, was assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC (Detroit).

"Wedge for an electric motor" was invented by Mark R. Claywell (Birmingham, Mich.), Brad J. Heckman (Oxford, Mich.) and Eric F. Grimminger (Rochester Hills, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A rotor includes a laminate core that defines poles and pole shoes. The pole shoes define slots for receiving wire coils. An outer wedge is disposed in the slots. The outer wedge includes a top portion disposed at an outer diameter of the rotor. The top portion includes an upper surface and a lower surface. The upper surface and the lower surface create a co...