(19)

(11)

EP 0 983 400 A1

(12)

(43) Date of publication: 08.03.2000 Bulletin 2000/10 (21) Application number: 98925578.1 (22) Date of filing: 12.05.1998

(51) International Patent Classification (IPC)7: E01B 21/00, E01B 2/00 (86) International application number: PCT/EP9802/764 (87) International publication number: WO 9851/863 (19.11.1998 Gazette 1998/46)

(84) Designated Contracting States: AT BE CH DE ES FR GB IT LI NL PT SE Designated Extension States: RO SI (30) Priority: 13.05.1997 IT VE970018 (71) Applicant: Mecno-Rail S.r.l. 30174 Venezia Mestre (IT)	(72) Inventor: FAVARON, Claudio I-30174 Venezia Mestre (IT) (74) Representative: Piovesana, Paolo  Corso del Popolo, 70 30172 Venezia-Mestre 30172 Venezia-Mestre (IT)