ALEXANDRIA, Va., June 18 -- United States Patent no. 12,325,491, issued on June 10, was assigned to TIEN HSIN INDUSTRIES Co. LTD. (Taichung, Taiwan).
"Hub motor for pedelec" was invented by Chien-Mo Lu (Taichung, Taiwan), Yu-Chen Wu (Taichung, Taiwan) and Chin-Wen Ou (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hub motor for a pedelec includes a hub housing, a shaft module, a stator unit including a control circuit board, a rotor unit, a freehub module, and a signal wire. The shaft module includes a shaft tube and a casing tube fitting around the shaft tube. The shaft tube has an inner circumference and an outer circumference, which are opposite, the inner circumference encircles to for...