Exterior part for a timepiece or piece of jewelry
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United States of America
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Feb 25, 2025
Grant Date -
Jun 9, 2022
app pub date -
Mar 20, 2020
filing date -
Mar 20, 2020
priority date (Note) -
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Abstract
A method for manufacturing an exterior part for a timepiece or piece of jewelry made of Murano glass is disclosed. The method comprises providing a material formed of glass rods (2), also referred to as glass tubes, arranged side by side; applying a multi-cycle heat treatment to consolidate the material and form a blank; and machining the blank to produce the exterior part. The heat treatment may comprise a first cycle (a) consisting of heating the material from a temperature less than or equal to 100° C. to a temperature between 450 and 650° C. at a heating rate between 4 and 12° C./min in order to avoid the formation of air bubbles during the manufacturing of the blank. Also disclosed is an exterior part for a timepiece or piece of jewelry, in particular a watch case, having a structure with few or no air bubbles.
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