(19)

(11)

EP 1 278 927 A1

(12)

(43) Date of publication: 29.01.2003 Bulletin 2003/05 (21) Application number: 01947233.1 (22) Date of filing: 20.04.2001

(51) International Patent Classification (IPC)7: E04H 17/10 (86) International application number: PCT/EP0104/494 (87) International publication number: WO 0108/3918 (08.11.2001 Gazette 2001/45)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 04.05.2000 LU 90576 (71) Applicant: TREFILARBED BISSEN S.A. 7703 Bissen (LU)	(72) Inventor: FELGEN, Fernand L-7553 Mersch (LU) (74) Representative: Kihn, Pierre Emile Joseph et al Office Ernest T. Freylinger S.A.234, route d'ArlonB.P. 48 8001 Strassen 8001 Strassen (LU)