ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,456,905, issued on Oct. 28, was assigned to MOTEURS LEROY-SOMER (Angouleme, France).
"Device for manufacturing a lamination stack" was invented by Patrick Vohlgemuth (Anais, France).
According to the abstract* released by the U.S. Patent & Trademark Office: "Device for manufacturing a lamination stack (E) for a rotating electrical machine, each lamination having a plurality of lamination sectors with notches. The laminations providing a central bore. The device including a mandrel for receiving the stacked lamination sectors, in which the mandrel includes a mandrel body provided with longitudinal slots, bars received in the longitudinal slots of the mandrel body, the bars being magne...