(19)

(11)

EP 0 963 494 A1

(12)

(43) Date of publication: 15.12.1999 Bulletin 1999/50 (21) Application number: 98913607.0 (22) Date of filing: 23.02.1998

(51) International Patent Classification (IPC):  E04C 5/ 01( . ) (86) International application number: PCT/EP1998/001126 (87) International publication number: WO 1998/038398 (03.09.1998 Gazette 1998/35)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 28.02.1997 EP 19970200582 (71) Applicant: N.V. BEKAERT S.A. 8550 Zwevegem (BE)	(72) Inventor: LAMBRECHTS, Ann B-2200 Herentals (BE) (74) Representative: Messely, Marc, Ir., et al  N.V. Bekaert S.A., Ind. Prop. Dep. 1017, Bekaertstraat 2 8550 Zwevegem 8550 Zwevegem (BE)