ALEXANDRIA, Va., June 18 -- United States Patent no. 12,326,073, issued on June 10, was assigned to Yantai Jereh Petroleum Equipment & Technologies Co. Ltd. (Yantai, China).
"Power system and fracturing device" was invented by Jianwei Wang (Shandong, China), Xiaolei Ji (Shandong, China) and Peng Zhang (Shandong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Some embodiments of the present disclosure provide a power system and a fracturing device. The power system includes an oil tank, a reduction gearbox and a hydraulic system. The reduction gearbox is provided with a lubricating system, and the lubricating system is communicated with the oil tank. The hydraulic system includes a hydraulic actuating m...