ALEXANDRIA, Va., July 21 -- United States Patent no. 12,685,889, issued on July 21.
"Electric locking structure for resistance motor of exercise machine" was invented by Chih-Yung Hsu (Tainan City, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An electric locking structure for a resistance motor of an exercise machine, includes a frame; a resistance motor having an output shaft for outputting a resistance force; a rotary disk connected to the output shaft; a locking disk connected to the output shaft and having a plurality of locking spaces; a traction member for pulling the rotary disk to overcome the resistance force; a locking bolt, movably disposed on the frame; an electric control unit, connecte...