(19)

(11)

EP 0 537 277 A1

(12)

(43) Date of publication: 21.04.1993 Bulletin 1993/16 (21) Application number: 91913475.0 (22) Date of filing: 03.07.1991

(51) International Patent Classification (IPC):  E04C 2/ 288( . ) (86) International application number: PCT/NL1991/000115 (87) International publication number: WO 1992/001124 (23.01.1992 Gazette 1992/03)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 03.07.1990 NL 19900001513 (71) Applicant: REWA BUDEL B.V. NL-6021 AC Budel (NL)	(72) Inventor: VONKEN, Harold, Johannes, Theodorus NL-6021 ML Budel (NL) (74) Representative: Timmermans, Anthonius C.Th., Ir., et al  European Patent Attorneys Octrooibureau Zuid P.O. Box 2287 NL-5600 CG Eindhoven NL-5600 CG Eindhoven (NL)