(19)

(11)

EP 0 723 649 A1

(12)

(43) Date of publication: 31.07.1996 Bulletin 1996/31 (21) Application number: 94928977.0 (22) Date of filing: 12.10.1994

(51) International Patent Classification (IPC):  F42B 7/ 08( . ) (86) International application number: PCT/GB1994/002228 (87) International publication number: WO 1995/010752 (20.04.1995 Gazette 1995/17)

(84) Designated Contracting States: BE DE DK ES FR GB IT SE (30) Priority: 12.10.1993 GB 19930021016 (71) Applicant: Chetcuti, Francis Tarxien PLA 11 (MT)	(72) Inventor: Chetcuti, Francis Tarxien PLA 11 (MT) (74) Representative: Hamilton, Alistair, et al  Mewburn Ellis, York House, 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)