(19)

(11)

EP 1 055 083 A1

(12)

(43) Date of publication: 29.11.2000 Bulletin 2000/48 (21) Application number: 98963641.0 (22) Date of filing: 17.12.1998

(51) International Patent Classification (IPC)7: F23C 7/00, F23R 3/26, F15C 1/08 (86) International application number: PCT/GB9803/692 (87) International publication number: WO 9932/827 (01.07.1999 Gazette 1999/26)

(84) Designated Contracting States: DE FR GB (30) Priority: 18.12.1997 GB 9726697 17.12.1997 GB 9726585 (71) Applicant: The Secretary of State for Defence Farnborough,Hampshire GU14 0LX (GB)	(72) Inventors: TILSTON, John, R. Farnborough,Hampshire GU14 0LS (GB) AUSTIN, John Farnborough,Hampshire GU14 0LS (GB) (74) Representative: Bowdery, Anthony Oliver  D/IPD DERA Formalities,A4 Building,Room G016,Ively Road Farnborough, Hants. GU14 OLX Farnborough, Hants. GU14 OLX (GB)