Back to results
US 2015/0277380 A1Published application
Mainspring for a timepiece
AssigneeNivarox-FAR S.A.
InventorsChristian Charbon, Maxime Govaerts, Pierre Cusin, Marco Verardo
Life of this patent
Estimating the term…
Abstract
A mainspring including a metallic strip wound on itself. The mainspring includes an excess thickness forming a bridle in one-piece with the strip.
Claims13
1-17. (canceled)
A mainspring comprising:
- a metallic strip wound on itself;
- an outer coil including an excess thickness in one-piece with the strip between a start of an outer coil and before a free end of the outer coil which forms a base extending radially with a substantially uniform thickness towards an exterior of the mainspring;
- and
- at least a second strip forming a bridle in one-piece with the strip and that extends from the base and at least partially runs along an exterior of a non-thickened portion of the outer coil of the mainspring.
1 more element
Dependencies are inferred from the claim text.