(19)

(11)

EP 1 733 068 A2

(12)

(88) Date of publication A3: 18.05.2006 (43) Date of publication: 20.12.2006 Bulletin 2006/51 (21) Application number: 05718396.4 (22) Date of filing: 08.04.2005

(51) International Patent Classification (IPC):  C23C 14/02(2006.01) C23C 14/08(2006.01) (86) International application number: PCT/IB2005/000926 (87) International publication number: WO 2005/098077 (20.10.2005 Gazette 2005/42)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR LV MK YU (30) Priority: 08.04.2004 IT TO20040221 (71) Applicant: Metalnova S.r.l. 10045 Piossasco (IT)	(72) Inventors: TORTOLONE, Paolo I-10057 Sant'Ambrogio (IT) ORSI, Carlo I-10045 Piossasco (IT) (74) Representative: Buzzi, Franco  c/o Buzzi, Notaro & Antonielli d'Oulx Via Maria Vittoria 18 10123 Torino 10123 Torino (IT)