Method for cutting watch crystals

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United States of America Patent

PATENT NO 11054790
APP PUB NO 20190113890A1
SERIAL NO

16104238

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Abstract

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A method for cutting watch crystals along a plurality of contours in a plate of transparent material includes forming a first cut line or kerf to form a first chamfer for each of the crystals of the plate and marking at least one machined recess on a first side of the plate, turning the plate over and marking at least one of the position of the first chamfer and the position of the at least one machined recess, forming a second cut line or kerf to form a second chamfer for each of the crystals on a second side of the plate, and separating the crystals by machining through the plate at each of the contours to form edges of the crystals.

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Patent Owner(s)

Patent OwnerAddress
THE SWATCH GROUP RESEARCH AND DEVELOPMENT LTD2074 MARIN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bazin, Jean-Luc Tuescherz-Alfermee, CH 25 50
Gunn-Sechehaye, Martin Biel/Bienne, CH 1 1

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