(19)

(11)

EP 0 513 115 A1

(12)

(43) Date of publication: 19.11.1992 Bulletin 1992/47 (21) Application number: 91903409.0 (22) Date of filing: 01.02.1991

(51) International Patent Classification (IPC):  F42C 15/ 295( . ) (86) International application number: PCT/NO1991/000012 (87) International publication number: WO 1991/011677 (08.08.1991 Gazette 1991/18)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 02.02.1990 NO 19900000510 (71) Applicant: Norsk Forsvarsteknologi A/S N-3600 Kongsberg (NO)	(72) Inventor: OLSEN, Sten, Ove N-3600 Kongsberg (NO) (74) Representative: Valentine, Francis Anthony Brinsley  REDDIE & GROSE 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)