(19)

(11)

EP 0 897 434 A1

(12)

(43) Date of publication: 24.02.1999 Bulletin 1999/08 (21) Application number: 97939884.0 (22) Date of filing: 11.09.1997

(51) International Patent Classification (IPC):  E01F 15/ 14( . ) (86) International application number: PCT/BE1997/000103 (87) International publication number: WO 1998/033985 (06.08.1998 Gazette 1998/31)

(84) Designated Contracting States: BE DE ES FR IT LU NL (30) Priority: 03.02.1997 BE 19970000104 (71) Applicant: Kredietbank 2000 Antwerpen (BE)	(72) Inventor: SCHIETTECATTE, Clement B-9700 Oudenaarde (BE) (74) Representative: Luys, Marie-José A.H., et al  Gevers & Vander Haeghen, Livornostraat 7 1060 Brussel 1060 Brussel (BE)