(19)

(11)

EP 0 403 569 A1

(12)

(43) Date of publication: 27.12.1990 Bulletin 1990/52 (21) Application number: 89904869.0 (22) Date of filing: 11.04.1989

(51) International Patent Classification (IPC):  H01M 10/ 50( . ) (86) International application number: PCT/SE1989/000200 (87) International publication number: WO 1989/010011 (19.10.1989 Gazette 1989/25)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 11.04.1988 SE 19880001318 (71) Applicants: Nilsson, Ove S-440 41 Nol (SE) Sundberg, Erik S-252 39 Helsingborg (SE)	(72) Inventors: Nilsson, Ove S-440 41 Nol (SE) Sundberg, Erik S-252 39 Helsingborg (SE) (74) Representative: Arwidi, Bengt  AHLPATENT AB Förborgsgatan 27 S-554 39 Jönköping S-554 39 Jönköping (SE)