(19)

(11)

EP 0 472 585 A1

(12)

(43) Date of publication: 04.03.1992 Bulletin 1992/10 (21) Application number: 90907529.0 (22) Date of filing: 16.05.1990

(51) International Patent Classification (IPC):  E06C 1/ 20( . ) E06C 7/ 44( . ) E06C 7/ 42( . ) (86) International application number: PCT/NO1990/000083 (87) International publication number: WO 1990/014493 (29.11.1990 Gazette 1990/27)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB IT LI LU NL SE (30) Priority: 16.05.1989 NO 19890001965 (71) Applicant: RAUFOSS A/S N-2831 Raufoss (NO)	(72) Inventor: HEGGEN, Hans N-2770 Jaren (NO) (74) Representative: Rostovanyi, Peter, et al  AWAPATENT AB, Box 5117 S-200 71 Malmö S-200 71 Malmö (SE)