EP 0415130 A1 19910306 - Method to eliminate the filling in wrought hollow gold and wrought hollow gold thus processed.
Title (en)
Method to eliminate the filling in wrought hollow gold and wrought hollow gold thus processed.
Title (de)
Verfahren, um eine Füllung aus einem verformten Hohlgoldkörper zu entfernen und entsprechend verformter Hohlgoldkörper.
Title (fr)
Procédé pour éliminer le noyau se trouvant à l'intérieur d'un objet en or creux façonné et objet en or creux ainsi obtenu.
Publication
Application
Priority
IT 8346989 A 19890831
Abstract (en)
Method to eliminate the filling in wrought hollow gold which is in the form of a wrought article consisting of a gold leaf wrapped about a core of copper or of an alloy of copper or of another metal and/or alloy of another metal, the gold leaf having its edges mating with each other and at least partly not welded together, the gold also being of any desired title or carat weight, the gold article undergoing an operation of electrolysis which eliminates the core. Article made of hollow gold which is processed in the form of a wrought article, the article consisting of a gold leaf wrapped about a core of copper or of another metal or of an alloy, the gold leaf having its edges mating with each other and at least partly not welded together, the gold also being of any desired title or carat weight and undergoing a process of electrolysis to remove the core according to the above method.
IPC 1-7
IPC 8 full level
A44C 27/00 (2006.01); C25F 5/00 (2006.01)
CPC (source: EP)
A44C 27/002 (2013.01); C25F 5/00 (2013.01)
Citation (search report)
- [A] US 3334029 A 19670801 - JACQUES DELAFOSSE, et al
- [A] GB 486107 A 19380530 - KEVIN WILLIAM CATON WEBB, et al
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0415130 A1 19910306; IT 1235130 B 19920618; IT 8983469 A0 19890831; JP H0397900 A 19910423
DOCDB simple family (application)
EP 90115041 A 19900804; IT 8346989 A 19890831; JP 22454090 A 19900828