(19)

(11)

EP 0 390 845 A1

(12)

(43) Date of publication: 10.10.1990 Bulletin 1990/41 (21) Application number: 89900660.0 (22) Date of filing: 13.12.1988

(51) International Patent Classification (IPC):  E06B 3/ 68( . ) E06B 3/ 66( . ) (86) International application number: PCT/NO1988/000092 (87) International publication number: WO 1989/005895 (29.06.1989 Gazette 1989/14)

(84) Designated Contracting States: CH DE FR GB IT LI NL SE (30) Priority: 14.12.1987 NO 19870005190 (71) Applicant: AS SPILKA INTERNATIONAL LTD. N-6013 Alesund (NO)	(72) Inventor: AS SPILKA INTERNATIONAL LTD. N-6013 Alesund (NO) (74) Representative: Haft, von Puttkamer, Berngruber, Czybulka  Patentanwälte Franziskanerstrasse 38 D-81669 München D-81669 München (DE)