(19)

(11)

EP 0 469 031 A1

(12)

(43) Date of publication: 05.02.1992 Bulletin 1992/06 (21) Application number: 90906378.0 (22) Date of filing: 06.04.1990

(51) International Patent Classification (IPC):  F21V 11/ 02( . ) (86) International application number: PCT/NO1990/000061 (87) International publication number: WO 1990/012245 (18.10.1990 Gazette 1990/24)

(84) Designated Contracting States: AT BE DE DK GB SE (30) Priority: 07.04.1989 NO 19890001443 (71) Applicant: IFA ELECTRIC A/S N-5050 Nesttun (NO)	(72) Inventor: KAMSVAAG, Per N-5080 Landaas (NO) (74) Representative: Charlton, Peter John  Elkington and Fife Prospect House 8 Pembroke Road Sevenoaks, Kent TN13 1XR Sevenoaks, Kent TN13 1XR (GB)