ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,008, issued on Oct. 14, was assigned to TIEN HSIN INDUSTRIES Co. LTD. (Taichung, Taiwan).
"Hub motor" was invented by Chun-Wei Chen (Taichung, Taiwan), Chang-Chun Kao (Taichung, Taiwan) and Shang-Feng Lin (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hub motor suitable for installation on bicycles and includes an axle, a stator, a rotor, a casing, a sealing ring, and a compression ring. The axle is fixed to a frame of the bicycle. The stator is fixed to the axle. The rotor is rotatably sleeved on the axle and pivots around the stator with the axle as an axis. The casing is rotatably sleeved on the axle and pivots around the roto...