ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,461,489, issued on Nov. 4, was assigned to Nivarox-FAR S.A. (Le Locle, Switzerland).
"Wheel for a reduced-inertia escapement system" was invented by Laurent Jeanneret (Villers-le-Lac, France) and Stephane Renard (Chambrelien, Switzerland).
According to the abstract* released by the U.S. Patent & Trademark Office: "A wheel for an escapement system including a hub intended to be mounted with a staff for rotation therewith, the staff being intended to be subjected to a mechanical torque, a felloe, at least two arms extending from the hub to the felloe, and a toothing formed by a plurality of teeth. The wheel for the escapement system includes at least one recess on at least one of the fa...