Crystal used for closing the top of the case of a portable object and method of welding a crystal of this type

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United States of America Patent

PATENT NO 9149983
APP PUB NO 20130153289A1
SERIAL NO

13818222

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Abstract

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A crystal and an ultrasonic welding method for a crystal. The crystal is used to close a top of a case of a portable object, the crystal being made of a transparent plastic material and being secured to the case of the portable object by ultrasonic welding. The crystal includes a top surface and a bottom surface that carry one or more conductive paths made of a transparent conductive material, and a peripheral rim that extends along at least one portion of the perimeter of the crystal. The peripheral rim provides at least one surface for the ultrasonic welding of the crystal to the case of the portable object.

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Patent Owner(s)

  • THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Poli, Gian-Carlo Les Geneveys-sur-Coffrane, CH 12 102

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