US Patent Issued to OMEGA on Aug. 18 for "Spiral spring for a horological resonator mechanism provided with means for adjusting the stiffness" (Swiss, French Inventors)

ALEXANDRIA, Va., Aug. 18 -- United States Patent no. 12,710,725, issued on Aug. 18, was assigned to OMEGA SA (Biel/Bienne, Switzerland).

"Spiral spring for a horological resonator mechanism provided with means for adjusting the stiffness" was invented by Ivan Hernandez (Cressier, Switzerland), Romain Le Moal (Villers-le-Lac, France), Roberto Frosio (Chambrelien, Switzerland) and Pierre Cusin (Villars-Burquin, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A spiral spring for a horological resonator mechanism, including a flexible strip (2) coiled on itself into several turns, the strip (2) having a predefined stiffness. The spring (1) include an element for adjusting its stiffness, including a un...