(19)

(11)

EP 1 181 086 A1

(12)

(43) Date of publication: 27.02.2002 Bulletin 2002/09 (21) Application number: 00935120.6 (22) Date of filing: 25.05.2000

(51) International Patent Classification (IPC)7: B01D 29/11, B01D 29/88 (86) International application number: PCT/EP0004/790 (87) International publication number: WO 0072/939 (07.12.2000 Gazette 2000/49)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 01.06.1999 IT PD990119 (71) Applicant: Minichiello, Luigi 35031 Abano Terme (IT)	(72) Inventor: Minichiello, Luigi 35031 Abano Terme (IT) (74) Representative: Modiano, Guido, Dr.-Ing. et al Modiano & Associati SpA Via Meravigli, 16 20123 Milano 20123 Milano (IT)