ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,346, issued on Sept. 23, was assigned to KENNAMETAL INC. (Latrobe, Pa.).
"Reamer with front gash design" was invented by Herbert R. Kauper (Rosstal, Germany), Juergen Schwaegerl (Vohenstrauss, Germany) and Li Ning (Pleasant Unity, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A reamer includes a shank portion extending from a rear end and a cutting portion extending from the shank portion to a front end. The cutting portion includes a plurality of cutting teeth separated by gashes. Each cutting tooth having a cutting edge extending in a longitudinal direction from the front end to proximate the shank portion. The cutting portion includes a mar...