US Patent Issued to JIANGSU DONGCHENG TOOLS TECHNOLOGY on Sept. 30 for "System and method of adjusting speed of electric tool" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,640, issued on Sept. 30, was assigned to JIANGSU DONGCHENG TOOLS TECHNOLOGY Co. LTD. (Nantong, China).

"System and method of adjusting speed of electric tool" was invented by Yan Jin (Nantong, China), Jin Qian (Nantong, China) and Chao Zhou (Nantong, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "For a system of adjusting a speed of an electric tool, a power supply module is connected to an inverter, the inverter is connected to a motor and a controller; the controller is connected to a switch fixed-speed module, a rotational speed display module, and a fixed-speed prompting module. The switch fixed-speed module comprises a switch trigger con...