Invention Grant
- Patent Title: Method for fabrication of a balance spring of a predetermined stiffness by local removal of material
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Application No.: US15355648Application Date: 2016-11-18
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Publication No.: US10338528B2Publication Date: 2019-07-02
- Inventor: Frederic Kohler , Jean-Luc Bucaille , Olivier Hunziker
- Applicant: CSEM Centre Suisse d'Electronique et de Microtechnique SA—Recherche et developpement
- Applicant Address: CH Neuchatel
- Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SA—Recherche et developpement
- Current Assignee: CSEM Centre Suisse d'Electronique et de Microtechnique SA—Recherche et developpement
- Current Assignee Address: CH Neuchatel
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: EP15201341 20151218
- Main IPC: G04B17/06
- IPC: G04B17/06 ; F16F1/10 ; G04D7/08 ; G04D7/10 ; B81C1/00 ; G04B17/22
Abstract:
The invention relates to a method for fabrication of a balance spring of a predetermined stiffness comprising the steps of fabricating a balance spring in dimensions of increased thickness, determining the stiffness of the balance spring formed in step a) in order to remove, locally, a volume of material, in order to obtain the balance spring having the dimensions necessary for said predetermined stiffness.
Public/Granted literature
- US20170176941A1 METHOD FOR FABRICATION OF A BALANCE SPRING OF A PREDETERMINED STIFFNESS BY LOCAL REMOVAL OF MATERIAL Public/Granted day:2017-06-22
Information query
