Horology: time measuring systems or devices – Chronological – With significant casing or mounting support structure
Reexamination Certificate
2002-02-24
2008-05-20
Bradley, P. Austin (Department: 2833)
Horology: time measuring systems or devices
Chronological
With significant casing or mounting support structure
C368S250000
Reexamination Certificate
active
07376053
ABSTRACT:
The present invention proposes improving the yield of a microgenerator (1) used for operating a timepiece. Such a microgenerator operates on the basis of the phenomenon of electromagnetic induction, it is thus desirable to limit as far as possible the presence of magnetic masses in proximity to said generator. Research undertaken has shown that the electrically conductive paths (9), and even their single protective layer, arranged in proximity to the microgenerator brake it, when they are formed of a magnetic material, and in particular a ferromagnetic material. Thus, the selection of exclusively non-magnetic materials is proposed for manufacturing the conductive paths.
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Burdet Denis
Leuba Frédéric
Bradley P. Austin
Eta SA Fabriques d'Ebauches
Griffin & Szipl, P.C.
Phan Thanh S.
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