(19)

(11)

EP 0 992 178 A1

(12)

(43) Date of publication: 12.04.2000 Bulletin 2000/15 (21) Application number: 98932266.4 (22) Date of filing: 16.06.1998

(51) International Patent Classification (IPC)7: H05B 33/14 (86) International application number: PCT/GB9801/755 (87) International publication number: WO 9858/524 (23.12.1998 Gazette 1998/51)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 17.06.1997 GB 9712439 (71) Applicant: Delta Theta Limited Crewe,Cheshire CW1 1WZ (GB)	(72) Inventors: PANAGHE, Stylianos Knutsford,Cheshire WA16 8TW (GB) LARGE, William, Thomas Nantwich,Cheshire CW5 6NA (GB) (74) Representative: McNeight, David Leslie et al EurolinkRegent HouseHeaton Lane StockportCheshire SK4 1BS StockportCheshire SK4 1BS (GB)