(19)

(11)

EP 1 779 486 A1

(12)

(43) Date of publication: 02.05.2007 Bulletin 2007/18 (21) Application number: 04770738.5 (22) Date of filing: 04.08.2004

(51) International Patent Classification (IPC):  H02G 5/06(2006.01) (86) International application number: PCT/IT2004/000436 (87) International publication number: WO 2006/013584 (09.02.2006 Gazette 2006/06)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (71) Applicant: Alfa Standard S.p.A. 24040 Arcene (IT)	(72) Inventor: BRULLI, Marcello I-24040 Calvenzano (IT) (74) Representative: Petraz, Gilberto Luigi et al GLP S.r.l. Piazzale Cavedalis 6/2 33100 Udine 33100 Udine (IT)