(19)

(11)

EP 0 491 925 A1

(12)

(43) Date of publication: 01.07.1992 Bulletin 1992/27 (21) Application number: 91913393.0 (22) Date of filing: 10.07.1991

(51) International Patent Classification (IPC):  E04B 1/ 04( . ) E04H 6/ 10( . ) E04B 1/ 21( . ) (86) International application number: PCT/DK1991/000199 (87) International publication number: WO 1992/001133 (23.01.1992 Gazette 1992/03)

(84) Designated Contracting States: BE DE FR GB NL SE (30) Priority: 12.07.1990 DK 19900001682 (71) Applicant: A/S DANSK SPAENDBETON DK-2640 Hedehusene (DK)	(72) Inventor: LIND, Erik DK-2942 Skodsborg (DK) (74) Representative: Jessen, Ivar Bergishagen  c/o Internationalt Patent-Bureau Hoeje Taastrup Boulevard 23 DK-2630 Taastrup DK-2630 Taastrup (DK)