(19)

(11)

EP 1 629 235 A1

(12)

(43) Date of publication: 01.03.2006 Bulletin 2006/09 (21) Application number: 04739447.3 (22) Date of filing: 28.05.2004

(51) International Patent Classification (IPC):  F24D 3/14(1985.01) (86) International application number: PCT/EP2004/005820 (87) International publication number: WO 2004/106810 (09.12.2004 Gazette 2004/50)

(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 (30) Priority: 30.05.2003 IT BL20030007 (71) Applicant: Da Rold, Adelio 32027 Trichiana (IT)	(72) Inventor: Da Rold, Adelio 32027 Trichiana (IT) (74) Representative: Modiano, Micaela Nadia et al Dr. Modiano & Associati S.p.A. Via Meravigli 16 20123 Milano 20123 Milano (IT)