(19)

(11)

EP 2 235 466 A1

(12)

(43) Date of publication: 06.10.2010 Bulletin 2010/40 (21) Application number: 08861002.7 (22) Date of filing: 19.12.2008

(51) International Patent Classification (IPC):  F28D 20/02(2006.01) (86) International application number: PCT/GB2008/004199 (87) International publication number: WO 2009/077765 (25.06.2009 Gazette 2009/26)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 19.12.2007 GB 0724776 (71) Applicant: Best, Frederick George Margam Port Talbot SA13 2EZ (GB)	(72) Inventor: Best, Frederick George Margam Port Talbot SA13 2EZ (GB) (74) Representative: Vleck, Jan Montagu  Reddie & Grose 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)