ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,233, issued on June 16, was assigned to Ottmar Hornung (Bermatingen, Germany).
"Clamping shank for a tool and tool comprising the clamping shank" was invented by Ottmar Hornung (Bermatingen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A clamping shank for a tool for clamping the tool into a rotary driving clamping device is proposed. The clamping shank comprises a circular shank portion and a pentagonal shank portion adjoining the circular shank portion. Four contiguous side faces of the pentagonal shank portion each form an angle of 90deg to each other in a plane perpendicular to the longitudinal axis of the clamping shank. A fifth side ...