US Patent Issued to RICHEMONT INTERNATIONAL on June 23 for "Method for testing and manufacturing spiral springs for a timepiece" (Swiss, French Inventors)

ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,760, issued on June 23, was assigned to RICHEMONT INTERNATIONAL SA (Villars-sur-Glane, Switzerland).

"Method for testing and manufacturing spiral springs for a timepiece" was invented by David Gachet (Neuchatel, Switzerland), Kevin Soobbarayen (Pontarlier, France) and Susana Tobenas (Boudry, Switzerland).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for inspecting a spiral or a spiral blank arranged to form a spiral, the spiral having to exhibit at least one predetermined resonant frequency, the inspecting method including the following steps: a. applying to the spiral or to the spiral blank a time-varying vibrational excitation to cover a ...