(19)

(11)

EP 1 570 159 A1

(12)

(43) Date of publication: 07.09.2005 Bulletin 2005/36 (21) Application number: 03784296.0 (22) Date of filing: 12.08.2003

(51) International Patent Classification (IPC)7: F01L 7/02, F01L 7/16, F01L 1/34, F01L 1/352, F01L 1/356 (86) International application number: PCT/GB2003/003517 (87) International publication number: WO 2004/015246 (19.02.2004 Gazette 2004/08)

(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 RO SE SI SK TR Designated Extension States: AL LT LV MK (30) Priority: 12.08.2002 GB 0218674 (71) Applicant: Boulton, Andrew J. Gainsborough, Lincolnshire DN21 1SA (GB)	(72) Inventor: Boulton, Andrew J. Gainsborough, Lincolnshire DN21 1SA (GB) (74) Representative: Murnane, Graham John et al Murgitroyd & Company, Exploration House, Exploration Drive, Bridge of Don Aberdeen AB23 8GX Aberdeen AB23 8GX (GB)