(19)

(11)

EP 1 488 045 A1

(12)

(43) Date of publication: 22.12.2004 Bulletin 2004/52 (21) Application number: 03739476.4 (22) Date of filing: 12.02.2003

(51) International Patent Classification (IPC)7: E01F 15/14 (86) International application number: PCT/EP2003/001362 (87) International publication number: WO 2003/069070 (21.08.2003 Gazette 2003/34)

(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 PT SE SI SK TR Designated Extension States: AL LT LV MK RO (30) Priority: 14.02.2002 IT MO20020031 (71) Applicant: CISDI S.P.A. 41100 Modena (IT)	(72) Inventor: CASOLARI, Sergio I-41100 Modena (IT) (74) Representative: Guareschi, Antonella et al Studio Ing. Fabrizio Dallaglio,92/C, Viale Mentana 43100 Parma 43100 Parma (IT)