(19)

(11)

EP 1 632 111 A1

(12)

(43) Date of publication: 08.03.2006 Bulletin 2006/10 (21) Application number: 04727942.7 (22) Date of filing: 16.04.2004

(51) International Patent Classification (IPC):  H05B 33/08(1968.09) G01R 19/00(1968.09) (86) International application number: PCT/GB2004/001670 (87) International publication number: WO 2004/095887 (04.11.2004 Gazette 2004/45)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 16.04.2003 GB 0308815 (71) Applicant: Polastar PLC The Strand London WC2E 2EB (GB)	(72) Inventors: Langmead, Peter Shepperton, Middlesex TW17 0LB (GB) Osborne, Raymond Isle of Oxney, Kent TN30 7NT (GB) (74) Representative: Merrifield, Sarah Elizabeth  Boult Wade Tennant Verulam Gardens 70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)