ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,744,438, issued on Sept. 22, was assigned to SEW-EURODRIVE GMBH & Co. KG (Bruchsal, Germany).
"Electric motor having rotor and squirrel cage winding" was invented by Li Jinchang (Tianjin, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric motor includes a rotor and a squirrel cage winding. The squirrel cage winding has two rings, which are axially spaced apart from each other and are interconnected by bars. The rotor has cutouts axially extending all the way through for receiving bars, and the cutouts are spaced apart from each other in the circumferential direction. The rotor has radially outwardly open axial grooves, and the radial dist...