(19)

(11)

EP 2 304 324 A2

(12)

(43) Date of publication: 06.04.2011 Bulletin 2011/14 (21) Application number: 09742407.1 (22) Date of filing: 11.05.2009

(51) International Patent Classification (IPC):  F24D 3/10(2006.01) F24D 19/10(2006.01) (86) International application number: PCT/GB2009/050497 (87) International publication number: WO 2009/136211 (12.11.2009 Gazette 2009/46)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 09.05.2008 GB 0808443 (71) Applicant: Dudley, Paul Frederick Eye, Suffolk IP21 5LS (GB)	(72) Inventor: Dudley, Paul Frederick Eye, Suffolk IP21 5LS (GB) (74) Representative: ip21 Ltd  Central Formalities Department Lakeside 300 Old Chapel Way Broadland Business Park Norwich Norfolk NR7 0WG Broadland Business Park Norwich Norfolk NR7 0WG (GB)