ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,523,019, issued on Jan. 13, was assigned to Caterpillar Inc. (Peoria, Ill.).
"Drafted tool bit and blade assembly" was invented by David Bruno Parzynski Jr. (Peoria, Ill.) and Thomas Marshall Congdon (Dunlap, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A material penetrating tool includes a shaft portion defining a central axis, and an enlarged cutting portion extending downwardly axially from the shaft portion. The enlarged cutting portion includes a rearward blunt surface, a front cutting surface, a first side surface and a second side surface, and the first side surface and the second side surface define an angle of extension measured in a pl...