ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,780,352, issued on Nov. 3, was assigned to TIEN HSIN INDUSTRIES Co. LTD. (Taichung City, Taiwan).
"Hub motor" was invented by Chun-Wei Chen (Taichung City, Taiwan) and Chang-Chun Kao (Taichung City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hub motor includes an axle, a stator, a rotor, a casing and a power cord. The axle fixes the hub motor to a frame of a bicycle. The stator is fixed to the axle and connected to a control unit. The rotor is rotatably sleeved on the axle and rotates around the stator. The casing is rotatably sleeved on the axle and driven by the rotor to rotate around the rotor and the axle. The casing has an accommodating...