ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,954, issued on Feb. 17, was assigned to Black & Decker Inc. (New Britain, Conn.).
"One-piece cutting head for a drill bit" was invented by Juri Schatz (Limburg, Germany), Alexander Stangl (Furstenzell, Germany), Florian Probst (Aidenbach, Germany) and Christoph Gastinger (Hutthurm, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A one-piece cutting head for a drill bit includes a main cutting edge that extends between radial extremities of the cutting head. The main cutting edge is disposed between main rake surfaces and main relief surfaces. Each main rake surface includes one or more rake facets, and each main relief surface includes one or...