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US 8,801,270 B2Granted
Timepiece with permanently coupled oscillators
AssigneeThe Swatch Group Research and Development Ltd
InventorsJean-Luc Helfer, Thierry Hessler, Thierry Conus
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Abstract
A timepiece includes a first resonator oscillator oscillating at a first frequency and connected by a first gear train to an energy source and a second oscillator oscillating at a second frequency and connected to a second gear train. The second gear train is connected to the first gear train by an elastic coupling device, in order to synchronize the rate of the two oscillators using the same energy source.
Claims16
A timepiece comprising:
- a first oscillator oscillating at a first frequency and connected by a first gear train to an energy source, said first oscillator comprising a first resonator connected to a first escapement;
- and
- a second oscillator oscillating at a second frequency and connected to a second gear train, said second oscillator comprising a second resonator connected to a second escapement,
- wherein the second gear train is connected to the first gear train by an elastic coupling device configured to synchronize the rate of the two oscillators using the same energy source.
1 more element
Dependencies are inferred from the claim text.