(19)

(11)

EP 1 629 250 A1

(12)

(43) Date of publication: 01.03.2006 Bulletin 2006/09 (21) Application number: 03815426.6 (22) Date of filing: 17.01.2003

(51) International Patent Classification (IPC):  F42D 5/045(1990.01) F42B 39/14(1990.01) (86) International application number: PCT/GB2003/000293 (87) International publication number: WO 2004/065892 (05.08.2004 Gazette 2004/32)

(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 PT SE SI SK TR (71) Applicant: Projectile Limited 11 Springfield Street Warrington WA1 1BB (GB)	(72) Inventors: OGDEN, Ernest Liverpool L21 5JW (GB) MCKENZIE, John Liverpool L22 0NS (GB)