US Patent Issued to Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung on Oct. 14 for "Hammer drill and method for deep drilling" (German Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,952, issued on Oct. 14, was assigned to Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V. (Munich).

"Hammer drill and method for deep drilling" was invented by Simon Hahn (Bochum, Germany), Philipp Schroer genannt Fleutert (Bochum, Germany), Volker Wittig (Bochum, Germany) and Marian Bunk (Bochum, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hammer drill is provided including at least one cylinder, in which at least one piston is mounted such that it can be moved axially between an upper and a lower end position, wherein the cylinder has at least one lower fluid supply, which can be cyclically supplied with a drive flu...