US Patent Issued to Ford Global Technologies on Sept. 22 for "Electric machine with core lamination structure having surface protrusions and recesses" (Michigan Inventors)

ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,435, issued on Sept. 22, was assigned to Ford Global Technologies LLC (Dearborn, Mich.).

"Electric machine with core lamination structure having surface protrusions and recesses" was invented by Leyi Zhu (Novi, Mich.), Michael W. Degner (Novi, Mich.) and Feng Liang (Troy, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electric machine includes a stack of interlocked rotor core laminations, individual rotor core laminations of the interlocked rotor core laminations including a mortise extending therein and an integrally-formed tenon extending therefrom, wherein the tenons interface with the mortises to interlock adjacent rotor core laminati...