US Patent Issued to Xuzhou College of Industrial Technology on Sept. 23 for "Energy-saving hook fixing device for crane" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,421,086, issued on Sept. 23, was assigned to Xuzhou College of Industrial Technology (Xuzhou, China).

"Energy-saving hook fixing device for crane" was invented by Jiansong Li (Xuzhou, China), Wenqi Song (Xuzhou, China) and Jinhai Sun (Xuzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An energy-saving hook fixing device for a crane is provided, including a hydraulic cylinder arranged at an end of the crane close to a hook, a hydraulic motor, an accumulator, and a directional control valve. A connector is provided at an end of a piston rod of the hydraulic cylinder away from a piston, the connector is used to connect to a cable, the cable is u...