US Patent Issued to Comadur on Sept. 1 for "Machining tool for grinding a workpiece" (French, Swiss Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,252, issued on Sept. 1, was assigned to Comadur SA (Le Locle, Switzerland).

"Machining tool for grinding a workpiece" was invented by Eric Thionnet (Le Russey, France) and Pierry Vuille (Les Emibois, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "The machining tool is used for grinding a workpiece in a machine tool. The tool includes at least a first machining portion having particles of a harder material than the material of the workpiece to be machined, the particles being arranged in a binder, and at least a second machining portion having particles of smaller diameter than the first machining portion, and of a harder material than th...