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EP 2 561 281 A1

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(43) Date of publication: 27.02.2013 Bulletin 2013/09 (21) Application number: 11723854.3 (22) Date of filing: 21.04.2011

(51) International Patent Classification (IPC):  F24D 11/00(2006.01) F24D 19/10(2006.01) F28D 20/00(2006.01) F24D 12/02(2006.01) F24H 1/20(2006.01) (86) International application number: PCT/ZA2011/000026 (87) International publication number: WO 2011/133987 (27.10.2011 Gazette 2011/43)

(84) Designated Contracting States: AL 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 RS SE SI SK SM TR (30) Priority: 19.07.2010 ZA 201005107 22.04.2010 ZA 201002827 (71) Applicants: BRUWER, Frederick, Johannes 7620 Paarl (ZA) Bruwer, Frederick Johannes (Jr) 7620 Paarl (ZA)	(72) Inventors: BRUWER, Frederick, Johannes 7620 Paarl (ZA) Bruwer, Frederick Johannes (Jr) 7620 Paarl (ZA) (74) Representative: Virdee-Crofts, Kulwinder Kaur  Fresh IP Cowley Road Cambridge, Cambridgeshire CB4 0WS Cambridge, Cambridgeshire CB4 0WS (GB)