Case closed by a glass with an invisible joint or one that can be decorated and manufacturing methods
AssigneeMontres Rado S.A.
InventorsChristian Verdon, Stewes Bourban, Gilles Derriey
Life of this patent
Estimating the term…
Abstract
The case includes a middle part (3) and a back cover (5) delimiting a compartment (7) closed by a glass (10), made of a transparent material resistant to temperatures above 500° C., said glass being bonded or welded at joint zones (15) at least partially covering the shoulder (4) of the middle part (3). It is characterized in that the inner face (11) of the glass (10) includes an enamel deposition (20) formed on the zones of the joints (15) with the shoulder (4) of the middle part (3), either in a hollow (14), or on the surface of said inner face (11).
Claims23
A sealed case including a middle part and a back cover delimiting a compartment closed by a glass, made of a transparent material resistant to temperatures above 500° C., bonded or welded at joint zones at least partially covering the shoulder of the middle part, wherein the inner face of the glass includes an enamel deposition formed on the zones of the joints with the shoulder of the middle part.
A method of manufacturing a sealed case including a middle part and a back cover delimiting a compartment closed by a glass made of a transparent material resistant to temperatures above 500° C. including the steps of:
- machining a hollow in an inner face of the glass close to edge thereof;
- carrying out an enamel deposition having a slightly greater thickness than the desired final thickness in one or several steps;
- machining the sides of the surface of the enamel layer and the edge.
Dependencies are inferred from the claim text.