US Patent Issued to ROLEX on Nov. 3 for "Timepiece driving device" (French, Swiss Inventors)

ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,782,872, issued on Nov. 3, was assigned to ROLEX SA (Geneva).

"Timepiece driving device" was invented by Daniel Moille (Yvoire, France) and Ramis Schiegg (Mannedorf, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "Timepiece driving device (100), in particular for an instantaneous jump calendar system, the device including: an input mobile (13); a main cam (11) having a main cam profile, and connected to the input mobile either (i) with angular backlash or (ii) via a unidirectional coupling; an auxiliary cam (12) connected to the input mobile, and having an auxiliary cam profile; a cam follower (21) adapted to cooperate with the main cam profil...