EP 0775951 A3 20000906 - Procedure to manufacture watch cases
Title (en)
Procedure to manufacture watch cases
Title (de)
Verfahren zur Herstellung von Uhrengehäusen
Title (fr)
Procédé de fabrication de boîtes de montre
Publication
Application
Priority
ES 9502302 A 19951123
Abstract (en)
[origin: EP0775951A2] Procedure for the manufacture of watch cases, based on a disposable cylindrical metal container (1) that involves cutting the container cross sectionally in four portions (2 and 3), out of which the intermediate ones (3) are then diametrically cut to obtain semi-cylindrical shells (4) that are rolled up to form a spiral (5) and which are then subjected to an axial pressing procedure using a die (6-7) which shape corresponds with that of the watch case to be manufactured. A ring shaped part (8) is obtained upon which base is then mounted a crown (9) fitted with a peripheral rib (10). <IMAGE>
IPC 1-7
IPC 8 full level
G04B 37/22 (2006.01); G04D 3/00 (2006.01)
CPC (source: EP)
G04B 37/22 (2013.01); G04D 3/0061 (2013.01)
Citation (search report)
- [A] US 2602483 A 19520708 - JAMES GRAHAM
- [DA] WO 9218915 A1 19921029 - WOHLFAHRT ROBERT [CH]
Designated contracting state (EPC)
AT BE CH DE DK FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0775951 A2 19970528; EP 0775951 A3 20000906; ES 2130015 A1 19990616; ES 2130015 B1 20000116
DOCDB simple family (application)
EP 96500151 A 19961122; ES 9502302 A 19951123