(19)

(11)

EP 0 431 140 A1

(12)

(43) Date of publication: 12.06.1991 Bulletin 1991/24 (21) Application number: 90910598.0 (22) Date of filing: 19.06.1990

(51) International Patent Classification (IPC):  E02B 15/ 04( . ) E02B 15/ 06( . ) (86) International application number: PCT/DK1990/000157 (87) International publication number: WO 1991/000393 (10.01.1991 Gazette 1991/02)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 28.06.1989 DK 19890003207 (71) Applicant: A/S ROULUNDS FABRIKER DK-5260 Odense S (DK)	(72) Inventors: BUCH, Carsten DK-5200 Odense V (DK) JENSEN, Steen DK-5290 Marslev (DK) RASMUSSEN, Lars, Boldt DK-5450 Otterup (DK) (74) Representative: Jessen, Ivar Bergishagen, et al  c/o Internationalt Patent-Bureau Hoeje Taastrup Boulevard 23 DK-2630 Taastrup DK-2630 Taastrup (DK)