Method for fabrication of a balance spring of a predetermined stiffness by local removal of material

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United States of America Patent

PATENT NO 10338528
APP PUB NO 20170176941A1
SERIAL NO

15355648

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
CSEM CENTRE SUISSE D'ELECTRONIQUE ET DE MICROTECHNIQUE SA - RECHERCHE ET DEVELOPPEMENTRUE JAQUET-DROZ 1 NEUCHÂTEL CH-2002

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bucaille, Jean-Luc Presilly, FR 10 19
Hunziker, Olivier Vevey, CH 9 19
Kohler, Frederic Avry-sur-Matran, CH 4 27

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