Back to results
US 6,668,456 B1Granted
Method for manufacturing a display element for a timepiece and display element manufactured in accordance with such method
AssigneeETA SA Fabriques d'Ebauches
InventorsErnst Moser, Theodor Schoenenberger
Life of this patent
Estimating the term…
Abstract
In order to manufacture the display element intended for a timepiece, a sheet of plastic material shaped in a tape (3) is provided. The sheet is then deformed using tools (4, 6) by thermoforming to give it a profile (10, 11, 13, B) corresponding to the outer contour (20) of said elements. Such an element can be a date disc or a dial.
Claims6
A mass manufacturing method for a display element, wherein it includes the following series of steps:
- a) a sheet of plastic material in a tape is provided, the width of said tape having sufficient size to manufacture at least one display element;
- b) the sheet is deformed by thermoforming to give it a profile corresponding to that of the display element once finished;
- and
- c) the display element is separated from the tape by cutting, this cutting corresponding to the outer contour of said display element.
1 more element
Dependencies are inferred from the claim text.