ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,403,534, issued on Sept. 2, was assigned to DN SOLUTIONS Co. LTD. (Changwon-si, South Korea).
"Long boring bar device of machine tool" was invented by Taehwan Ju (Gimhae-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a long boring bar device of a machine tool and, more particularly, to a long boring bar device of a machine tool, wherein a boring bar is detachably fastened to a holder, and a head tool is detachably fastened to the boring bar to automatically exchange a head tool through an automatic tool changer, thereby reducing non-processing time and improving productivity of the machine tool."
The pa...