Balance for timepieces and method for manufacturing the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11809137
APP PUB NO 20210181679A1
SERIAL NO

16767778

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Abstract

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A balance for timepieces includes a rim, a hub, and at least one arm connecting the hub to the rim. At least one portion of the balance is made of an at least partially amorphous metal alloy. The at least partially amorphous metal alloy is based on an element chosen from the group consisting of platinum, zirconium and titanium, and has a coefficient of thermal expansion comprised between 7 ppm/° C. and 12 ppm/° C. The balance can be manufactured by moulding. A resonator can include such a balance and a monocrystalline quartz balance spring.

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Patent Owner(s)

Patent OwnerAddress
THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTDRUE DES SORS 3 MARIN 2074

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Corson, Donald William Yverdon-les-Bains, CH 5 10
Di, Domenico Gianni Neuchatel, CH 76 206
Gueissaz, Francois Cormondreche, CH 21 317
Haemmerli, Alexandre Neuchatel, CH 18 15
Helfer, Jean-Luc Le Landeron, CH 95 322
Hinaux, Baptiste Lausanne, CH 39 85
Martin, Jean-Claude Montmollin, CH 49 316
Paratte, Lionel Marin-Epagnier, CH 27 146
Tombez, Lionel Bevaix, CH 57 104
Willemin, Michel Preles, CH 75 289
Winkler, Pascal St-Blaise, CH 79 233
Winkler, Yves Schmitten, CH 50 171

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