The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 30, 2012
Filed:
Mar. 30, 2009
Pierre-andré Bühler, Orvin, CH;
Marco Verardo, Les Bois, CH;
Thierry Conus, Lengnau, CH;
Jean-philippe Thiebaud, Cudrefin, CH;
Jean-bernard Peters, La Chaux-de-Fonds, CH;
Pierre Cusin, Villars-Burquin, CH;
Pierre-André Bühler, Orvin, CH;
Marco Verardo, Les Bois, CH;
Thierry Conus, Lengnau, CH;
Jean-Philippe Thiebaud, Cudrefin, CH;
Jean-Bernard Peters, La Chaux-de-Fonds, CH;
Pierre Cusin, Villars-Burquin, CH;
Montres Breguet S.A., L'Abbaye, CH;
Abstract
The invention relates to a one-piece hairspring () including, a balance spring () coaxially mounted on a collet (), made in the same layer of silicon-based material. According to the invention, the hairspring includes an elevation device () 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.