(19)

(11)

EP 0 349 568 A1

(12)

(43) Date of publication: 10.01.1990 Bulletin 1990/02 (21) Application number: 88902606.0 (22) Date of filing: 11.03.1988

(51) International Patent Classification (IPC):  H02P 21/ 00( . ) H02P 27/ 04( . ) (86) International application number: PCT/SE1988/000124 (87) International publication number: WO 1988/007287 (22.09.1988 Gazette 1988/21)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 11.03.1987 SE 19870001008 (71) Applicant: JÖNSSON, Ragnar S-271 00 Ystad (SE)	(72) Inventor: JÖNSSON, Ragnar S-271 00 Ystad (SE) (74) Representative: Asketorp, Göran P.  Asketorp Patent & Juridik AB P.O. Box 1 S-230 10 Skanör S-230 10 Skanör (SE)