EP 3564758 B1 20210630 - METHOD FOR MANUFACTURING TIMEPIECE COMPONENTS COMPRISING AN AVENTURINE DECORATIVE COATING
Title (en)
METHOD FOR MANUFACTURING TIMEPIECE COMPONENTS COMPRISING AN AVENTURINE DECORATIVE COATING
Title (de)
HERSTELLUNGSVERFAHREN VON UHRENKOMPONENTEN, DAS EINE SCHMUCKBESCHICHTUNG MIT AVENTURINQUARZ UMFASST
Title (fr)
PROCÉDÉ DE FABRICATION DE COMPOSANTS HORLOGERS COMPRENANT UN REVÊTEMENT DÉCORATIF EN AVENTURINE
Publication
Application
Priority
EP 18170444 A 20180502
Abstract (en)
[origin: US2019338425A1] A method for fabricating a timepiece component partly formed of aventurine, including providing at least one piece of aventurine formed of a mass of coloured glass containing copper crystals scattered throughout the mass; grinding at least one piece of aventurine to obtain a granular powder; depositing at least part of the granular powder on a surface of a support intended to receive a decorative coating; then introducing the support with the granular powder deposited on the surface into a furnace and melting this granular powder so as to obtain, after removing the assembly thus obtained from the furnace and allowing the assembly to cool, an enamel layer made of aventurine which covers the support surface. The timepiece component is, for example, a dial, a moon phase disc or a bezel.
IPC 8 full level
G04B 45/00 (2006.01); G04B 19/12 (2006.01)
CPC (source: CN EP US)
B44C 5/00 (2013.01 - CN); C23D 5/08 (2013.01 - US); C23D 13/00 (2013.01 - US); G04B 17/063 (2013.01 - CN); G04B 19/12 (2013.01 - CN EP); G04B 19/26 (2013.01 - CN); G04B 29/027 (2013.01 - CN); G04B 37/225 (2013.01 - CN); G04B 45/0015 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3564758 A1 20191106; EP 3564758 B1 20210630; CN 110442008 A 20191112; US 2019338425 A1 20191107
DOCDB simple family (application)
EP 18170444 A 20180502; CN 201910359023 A 20190430; US 201916381850 A 20190411