(19)

(11)

EP 0 857 294 A1

(12)

(43) Date of publication: 12.08.1998 Bulletin 1998/33 (21) Application number: 96935762.0 (22) Date of filing: 26.10.1996

(51) International Patent Classification (IPC):  G01R 35/ 04( . ) (86) International application number: PCT/SE1996/001378 (87) International publication number: WO 1997/015806 (01.05.1997 Gazette 1997/19)

(84) Designated Contracting States: AT CH DE DK FI FR GB LI NL (30) Priority: 27.10.1995 SE 19950003787 (71) Applicant: SYDKRAFT AB S-205 09 Malmö (SE)	(72) Inventor: JÖNSSON, Kjell S-237 33 Bjärred (SE) (74) Representative: Bjerre, Nils B.J., et al  AWAPATENT AB, P.O. Box 5117 200 71 Malmö 200 71 Malmö (SE)