(19)

(11)

EP 0 613 593 A1

(12)

(43) Date of publication: 07.09.1994 Bulletin 1994/36 (21) Application number: 92923879.0 (22) Date of filing: 20.11.1992

(51) International Patent Classification (IPC):  G01R 31/ 36( . ) G01R 31/ 00( . ) H02J 7/ 00( . ) (86) International application number: PCT/GB1992/002144 (87) International publication number: WO 1993/010590 (27.05.1993 Gazette 1993/13)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 20.11.1991 GB 19910024671 (71) Applicant: SILENT POWER GMBH FÜR ENERGIESPEICHERTECHNIK D-45128 Essen 1 (DE)	(72) Inventor: MOLYNEUX, John Runcorn Cheshire WA7 2AN (GB) (74) Representative: Cross, Rupert Edward Blount, et al  BOULT, WADE & TENNANT 27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)