(19)

(11)

EP 1 000 301 A1

(12)

(43) Date of publication: 17.05.2000 Bulletin 2000/20 (21) Application number: 98936492.2 (22) Date of filing: 03.08.1998

(51) International Patent Classification (IPC)7: F23N 5/24, F23N 5/18 (86) International application number: PCT/GB9802/183 (87) International publication number: WO 9906/768 (11.02.1999 Gazette 1999/06)

(84) Designated Contracting States: AT BE DE DK ES FI FR GB GR IE IT LU NL PT SE (30) Priority: 01.08.1997 GB 9716151 (71) Applicants: Webb, Mark St. John Southampton,Hampshire SO15 2AY (GB) Heanley, Christopher Roger Godalming,Surrey GU7 1ZE (GB)	(72) Inventor: HEANLEY, Christopher, Roger Surrey GU7 1ZE (GB) (74) Representative: Evens, Paul Jonathan et al Maguire Boss,5 Crown Street St. Ives,Cambridge PE17 4EB St. Ives,Cambridge PE17 4EB (GB)