US Patent Issued to Montres Breguet on March 3 for "Device for automatic winding of a barrel spring of a horological movement" (Swiss Inventor)

ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,407, issued on March 3, was assigned to Montres Breguet S.A. (L'Abbaye, Switzerland).

"Device for automatic winding of a barrel spring of a horological movement" was invented by Jean-Philippe Rochat (Les Bioux, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A device for automatic winding of a barrel spring of a watch includes an oscillating mass, an entry disk kinematically linked to the oscillating mass, two reduction disks and a ratchet driving disk, each reduction disk including a reduction wheel bearing at least four planetary wheels, and a transmission pinion about which the reduction wheel is loosely mounted, the entry disk being k...