(19)

(11)

EP 0 775 379 A1

(12)

(43) Date of publication: 28.05.1997 Bulletin 1997/22 (21) Application number: 95926041.0 (22) Date of filing: 27.07.1995

(51) International Patent Classification (IPC):  H02J 13/ 00( . ) (86) International application number: PCT/NZ1995/000068 (87) International publication number: WO 1996/003792 (08.02.1996 Gazette 1996/07)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 28.07.1994 NZ 19940264114 (71) Applicant: SOUTHPOWER LIMITED Christchurch 8001 (NZ)	(72) Inventors: HODGE, James, Graham Christchurch 8001 (NZ) HOLLIDAY, Philip, Andrew Christchurch 8001 (NZ) (74) Representative: Simpson, Alison Elizabeth Fraser, et al  Urquhart-Dykes & Lord, 91 Wimpole Street London W1M 8AH London W1M 8AH (GB)