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AssigneeNivarox-FAR S.A.
InventorsPierre-André BÜHLER, Marco VERARDO, Thierry CONUS, Jean-Phillipe THIEBAUD, Jean-Bernard PETERS, Pierre CUSIN
Estimating the term…
The invention relates to a one-piece hairspring (21, 21′) including, a balance spring (25, 25′) coaxially mounted on a collet (27, 27′), made in the same layer of silicon-based material. According to the invention, the hairspring includes an elevation device (2, 2′) for the outer coil of the balance spring above the layer of silicon-based material so as to improve the concentric development of the hairspring. The invention also relates to a timepiece including a hairspring of this type and the method of manufacturing the same. The invention concerns the field of timepiece movements.
A one-piece hairspring, which comprises a balance spring coaxially mounted on a collet, made in the same layer of silicon-based material, wherein it includes an elevation device for the outer coil of said balance spring, above said layer of silicon-based material so as to improve the concentric development of said hairspring.
11-20. (canceled)
Dependencies are inferred from the claim text.