ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,283, issued on Jan. 13, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).
"Transportation vehicle" was invented by Yoji Sakaguchi (Tsuchiura, Japan) and Hirokazu Shimomura (Tsuchiura, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A transportation vehicle includes: a cooling fan that is driven by a hydraulic motor; a heat exchanger that is disposed in a front portion of a vehicle body; a fan control valve that controls a flow of a hydraulic operating fluid supplied to the hydraulic motor; a cylinder control valve that controls a flow of the hydraulic operating fluid supplied to a hydraulic cylinder; and a controller. The fan con...