(19)

(11)

EP 0 318 552 A1

(12)

(43) Date of publication: 07.06.1989 Bulletin 1989/23 (21) Application number: 88905243.0 (22) Date of filing: 17.06.1988

(51) International Patent Classification (IPC):  F16K 31/ 06( . ) G05D 16/ 20( . ) G05D 16/ 10( . ) (86) International application number: PCT/NO1988/000054 (87) International publication number: WO 1988/010461 (29.12.1988 Gazette 1988/28)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 17.06.1987 NO 19870002525 (71) Applicant: KONGSBERG AUTOMOTIVE A/S N-3600 Kongsberg (NO)	(72) Inventor: ERVIK, Kjell, Steinar, L. N-3600 Kongsberg (NO) (74) Representative: Brereton, Paul Arthur, et al  REDDIE & GROSE 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)