(19)

(11)

EP 0 505 451 A1

(12)

(43) Date of publication: 30.09.1992 Bulletin 1992/40 (21) Application number: 91901325.0 (22) Date of filing: 14.12.1990

(51) International Patent Classification (IPC):  F41A 23/ 14( . ) (86) International application number: PCT/NO1990/000187 (87) International publication number: WO 1991/009265 (27.06.1991 Gazette 1991/14)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 15.12.1989 NO 19890005080 (71) Applicant: VINGHöGS MEK. VERKSTED AS N-3133 Duken (NO)	(72) Inventors: VINGHOG, Geir N-3133 Duken (NO) HAGEN, Arne Birger N-3135 Asgardstrand (NO) (74) Representative: Bjerre, Nils B.J., et al  AWAPATENT AB, P.O. Box 5117 S-200 71 Malmö S-200 71 Malmö (SE)