ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,089, issued on Feb. 10, was assigned to YANMAR HOLDINGS Co. LTD. (Osaka, Japan).
"Construction machine" was invented by Tatsumasa Wakata (Fukuoka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "To provide a construction machine capable of improving cooling efficiency of a heat exchanger and reducing noise in a configuration in which a prime mover, a heat exchanger, and an air cleaner for supplying clean air to the prime mover are arranged in an engine room. The excavation work machine comprises an engine room provided on a swivel frame and housing equipment including an engine and a heat exchange unit, a ventilation part provided on a right ex...