ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,426, issued on May 13, was assigned to KHANSTN Co. LTD. (Changwon-si, South Korea).
"Electrical driving system for machine tool" was invented by Yongseon Yun (Changwon-si, South Korea) and Bonsaeng Ku (Changwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a machine tool ELECTRICAL DRIVING SYSTEM capable of selectively transmitting power of a motor for driving a spindle in a lathe which machines a workpiece to a rotation system including a drawbar and a spindle for driving a chuck, using a clutch mechanism. The machine tool ELECTRICAL DRIVING SYSTEM includes a housing, a hollow tubular spindle rotatably installed inside...