ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,100, issued on Nov. 25, was assigned to GM Global Technology Operations LLC (Detroit).

"Shaft embedded brush power transfer for separately excited machine power" was invented by Muhammad A. Zahid (Troy, Mich.), Khorshed Mohammed Alam (Canton, Mich.), Mazharul Chowdhury (Canton, Mich.) and Dumitru Puiu (Sterling Heights, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A power transfer system for a separately excited machine includes a positive slipring and a negative slipring. One or more positive brushes and one or more negative brushes. A rotor winding attached to rotor laminations and a stator winding attached to stator laminations, such that...