ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,962, issued on Aug. 11, was assigned to SUMITOMO CONSTRUCTION MACHINERY Co. LTD. (Tokyo).
"Shovel" was invented by Jitsutaka Takeo (Chiba, Japan) and Kaoru Nakada (Chiba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shovel includes a lower traveling body, an upper turning body turnably mounted on the lower traveling body, a hydraulic actuator that drives driven parts including the lower traveling body and the upper turning body, a main pump that supplies hydraulic oil to the hydraulic actuators, a pump motor that drives the main pump, and a power storage device that supplies electric power to the pump motor. When the charging cable is conn...