(19)

(11)

EP 1 697 692 A1

(12)

(43) Date of publication: 06.09.2006 Bulletin 2006/36 (21) Application number: 04819718.0 (22) Date of filing: 26.11.2004

(51) International Patent Classification (IPC):  F42B 8/02(2006.01) (86) International application number: PCT/GB2004/004994 (87) International publication number: WO 2005/054775 (16.06.2005 Gazette 2005/24)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 26.11.2003 GB 0327492 (71) Applicant: UTM IP LIMITED Suffolk, IP28 7AS (GB)	(72) Inventor: SAXBY, Michael, Ernest Bexhill on Sea, East Sussex TN39 5JN (GB) (74) Representative: Townsend, Victoria Jayne et al Fry Heath & Spence LLP, The Gables, Massetts Road Horley, Surrey RH6 7DQ Horley, Surrey RH6 7DQ (GB)