ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,965, issued on Feb. 17.
"Tool for holding a tungsten electrode during sharpening" was invented by Edwin Alonzo Martinez (Pasadena, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tool includes a handle having a proximal end and a distal end, wherein the handle includes a first cylindrical cavity extending into the handle from an opening in the distal end and having a first cylindrical wall. The tool further includes a radial bearing having an inner race, an outer race, and rolling elements, wherein the outer race is secured to the first cylindrical wall of the first cylindrical cavity. Still further, the tool includes a central shaft having p...