US Patent Issued to SAFRAN ELECTRONICS & DEFENSE ACTUATION on June 17 for "Reverse multi-track ball screw" (French Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,814, issued on June 17, was assigned to SAFRAN ELECTRONICS & DEFENSE ACTUATION (Auxerre, France).

"Reverse multi-track ball screw" was invented by Joffrey Delong (Moissy-Cramayel, France) and Daniel Hors (Moissy-Cramayel, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A cam includes a cylindrical ring having a substantially circular outer section and, externally, a helical running track. The ring has a conduit that connects two ends of the external helical running track, and the conduit comprising includes a track for recirculation between the ends of the running track."

The patent was filed on Sept. 2, 2020, under Application No. 17/639,677...