ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,224, issued on Aug. 12, was assigned to Hitachi Construction Machinery Co. Ltd. (Tokyo).
"Wheeled construction machine" was invented by Naoki Naruo (Tsukuba, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A controller of a wheeled hydraulic excavator executes control of a vibration suppression function to control the flow of a hydraulic fluid from a hydraulic cylinder that drives a work implement, thereby suppressing vibration of the hydraulic cylinder when the rotation speed of wheels reaches a predetermined speed or higher. Furthermore, the controller disables the control of the vibration suppression function when the vehicle body is jacked ...