ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,848, issued on June 3, was assigned to CENTRE TECHNIQUE DES INDUSTRIES MECANIQUES (France) and ECOLE NATIONALE SUPERIEURE D'ARTS ET METIERS (ENSAM) (France).

"Electrospindle with integrated feed with automatic tool holder change" was invented by Ugo Masciantonio (Proville, France) and George Moraru (Aix-en-Provence, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A machining spindle that includes a tool-holder shaft (2), a first actuator connected to a coupling member (11) slidably connected to a first section (21) of the shaft to rotate the shaft, a second actuator connected to a nut helically connected to a second section (22) of the shaft to...