(19)

(11)

EP 0 089 976 A1

(12)

(43) Date of publication: 05.10.1983 Bulletin 1983/40 (21) Application number: 82902838.0 (22) Date of filing: 30.09.1982

(51) International Patent Classification (IPC):  F24J 2/ 02( . ) F24J 2/ 36( . ) G01S 3/ 786( . ) H01L 31/ 058( . ) F24J 2/ 14( . ) F24J 2/ 54( . ) H01L 31/ 052( . ) (86) International application number: PCT/NO1982/000051 (87) International publication number: WO 1983/001292 (14.04.1983 Gazette 1983/09)

(84) Designated Contracting States: AT DE FR GB SE (30) Priority: 01.10.1981 NO 19810003328 (71) Applicant: ASK, Tor N-1345 Osteras (NO)	(72) Inventor: ASK, Tor N-1345 Osteras (NO) (74) Representative: Saunders, Harry, et al  SAUNDERS & DOLLEYMORE 9, Rickmansworth Road Watford Hertfordshire WD1 7HE Watford Hertfordshire WD1 7HE (GB)