ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,487, issued on June 17, was assigned to VOLVO CONSTRUCTION EQUIPMENT AB (Eskilstuna, Sweden).
"Device for controlling working unit of construction equipment" was invented by Do Sang Park (Gyeongsangnam-do, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a device for controlling a working unit of construction equipment which comprises a hydraulic control device configured to hydraulically control a working unit and operated by an operating lever, a plurality of sub-electronic control units (ECU) electrically connected with the hydraulic control device, a main ECU configured to receive information on states of the hydraulic cont...