(19)

(11)

EP 1 685 279 A2

(12)

(88) Date of publication A3: 11.08.2005 (43) Date of publication: 02.08.2006 Bulletin 2006/31 (21) Application number: 04797802.8 (22) Date of filing: 10.11.2004

(51) International Patent Classification (IPC):  C25D 5/34(2006.01) C25D 5/50(2006.01) (86) International application number: PCT/EP2004/012761 (87) International publication number: WO 2005/047570 (26.05.2005 Gazette 2005/21)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 14.11.2003 IT MI20032218 (71) Applicant: F.Lli Calegaro di Luigi di Francesco Calegaro S.P.A. 35033 Bresseo Di Teolo (Padova) (IT)	(72) Inventors: FOCHESATO, Antonio I-36015 Schio(Vicenza) (IT) CALEGARO, Marco I-35123 Padova (IT) (74) Representative: De Gregori, Antonella et al Ing. Barzano' & Zanardo Milano S.p.A. Via Borgonuovo 10 20121 Milano 20121 Milano (IT)