US Patent Issued to HITACHI CONSTRUCTION MACHINERY on Oct. 6 for "Construction machine" (Japanese Inventors)

ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,569, issued on Oct. 6, was assigned to HITACHI CONSTRUCTION MACHINERY Co. LTD. (Tokyo).

"Construction machine" was invented by Shuu Shirato (Tsuchiura, Japan), Masahiro Kayane (Tsuchiura, Japan), Kento Kumagai (Ami-machi, Japan) and Mitsuhiko Kanehama (Kasumigaura, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a construction machine including first and second hydraulic actuators that are driven by first and second hydraulic pumps, respectively, and drive a front work implement, a third hydraulic actuator driven by the second hydraulic pump, solenoid valves that control a hydraulic fluid supplied to the second hydraulic actuat...