(19)

(11)

EP 0 383 750 A1

(12)

(43) Date of publication: 29.08.1990 Bulletin 1990/35 (21) Application number: 87906579.0 (22) Date of filing: 16.09.1987

(51) International Patent Classification (IPC):  B23K 9/ 025( . ) B23K 9/ 12( . ) (86) International application number: PCT/FI1987/000122 (87) International publication number: WO 1989/002332 (23.03.1989 Gazette 1989/07)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (71) Applicant: OY GSS GENERAL SEA SAFETY LTD SF-00140 Helsinki (FI)	(72) Inventor: NIINIVAARA, Ensi, Kyösti, Juhani SF-45610 Koria (FI) (74) Representative: Kummelsten, Per-Arne  UPPSALA PATENTBYRA P.O. Box 9013 S-750 09 Uppsala S-750 09 Uppsala (SE)