ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,342, issued on Feb. 17, was assigned to KENNAMETAL INC. (Latrobe, Pa.).
"Cutter tooth assembly for an excavating tool" was invented by Eric Helsel (Bedford, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cutter tooth assembly includes a cutter tooth having a shank portion and a cutting portion, and a cutter tooth holder having a pocket for receiving at least a portion of the shank portion of the cutter tooth. The shank portion of the cutter tooth has a plurality of tapered surfaces formed at a first angle with respect to a vertical axis of the cutter tooth, and the pocket of the cutter tooth holder has a plurality of tapered surfaces formed at...