US Patent Issued to Guehring on Dec. 2 for "Tool with wear detection" (German Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,491, issued on Dec. 2, was assigned to Guehring KG (Albstadt, Germany).

"Tool with wear detection" was invented by Immo Garrn (Ettingen, Germany) and Peter Gluche (Bellenberg, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "A coated tool, such as a rotating, cutting tool, includes a tool body and a multilayer wear protection coating system. The wear protection system coats a functional surface of the tool body that is subject to wear and includes a first undoped diamond layer and a second undoped diamond layer disposed over the first undoped diamond layer. The first undoped diamond layer is electrically conductive and exhibits grain boundary c...