ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,682, issued on Aug. 26, was assigned to HD HYUNDAI INFRACORE Co. LTD. (Incheon, South Korea).
"Construction machine and operation method" was invented by Jong Min Na (Incheon, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure relates to a construction machine utilizing battery and hydraulic power and comprising an electronic power unit comprising a battery and an electric motor, a hydraulic pump driven by the electronic power unit and discharging hydraulic fluid, a hydraulic line through which the hydraulic fluid discharged from the hydraulic pump moves, a main control valve installed on the hydraulic line and controlling th...