ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,682, issued on March 25, was assigned to PREGUN INDUSTRIAL Co. LTD. (Taichung, Taiwan).
"High-speed gunpowder actuated nail with a toothed tube" was invented by Wen-Chang Yang (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A high-speed gunpowder actuated nail with a toothed tube includes: a nail member including an outer threaded portion; a tubular member including an inner threaded portion screwed to the outer threaded portion; an actuating portion mounted to the tubular member; and a percussion cap mounted to an end of the tubular member remote from the nail member. As such, it can be applied for effective screw connection of a ...