(19)

(11)

EP 1 558 878 A1

(12)

(43) Date of publication: 03.08.2005 Bulletin 2005/31 (21) Application number: 02760559.1 (22) Date of filing: 06.08.2002

(51) International Patent Classification (IPC)7: F24F 13/02 (86) International application number: PCT/IT2002/000523 (87) International publication number: WO 2004/013543 (12.02.2004 Gazette 2004/07)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR Designated Extension States: AL LT LV MK RO SI (71) Applicant: Alp S.R.L. 24050 Calcinate (IT)	(72) Inventor: LIBRIZZI, Giuseppe I-24061 Albano S. Alessandro (IT) (74) Representative: Nemni, Raffaelo  Studio Legale NemniVia San Marco, 23 20121 Milano 20121 Milano (IT)