ALEXANDRIA, Va., July 14 -- United States Patent no. 12,678,874, issued on July 14, was assigned to Diametal A.G. (Biel/Bienne, Switzerland).
"Hob cutter arrangement" was invented by Alessandro Pierre Emile Trachsel (Bienne, Switzerland), Nils Vuilleumier (Bienne, Switzerland) and Frederic Marin (Ins, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hob cutter arrangement includes a tool body which has a continuous axial bore, conical bore sections forming both ends of the axial bore, an end shank body at each end of the tool body, and a conical section inserted into the conical bore section. Each end shank body has a radial flange which can be placed against an end face of the tool body and a sh...