(19)

(11)

EP 1 751 406 A1

(12)

(43) Date of publication: 14.02.2007 Bulletin 2007/07 (21) Application number: 05748208.5 (22) Date of filing: 17.05.2005

(51) International Patent Classification (IPC):  F01N 1/16(2006.01) F01N 1/10(2006.01) F01N 1/08(2006.01) (86) International application number: PCT/GB2005/001929 (87) International publication number: WO 2005/113949 (01.12.2005 Gazette 2005/48)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR (30) Priority: 18.05.2004 GB 0411018 (71) Applicants: Bushell, Richard Tarring Worthing, West Sussex BN13 1HB (GB) Rainback, Terence Frank Epsom Downs Surrey KT17 3NT (GB)	(72) Inventors: Bushell, Richard Tarring Worthing, West Sussex BN13 1HB (GB) Rainback, Terence Frank Epsom Downs Surrey KT17 3NT (GB) (74) Representative: Fry, David John et al Fry Heath & Spence LLP The Gables Massetts Road GB-Horley, Surrey RH6 7DQ GB-Horley, Surrey RH6 7DQ (GB)