(19)

(11)

EP 2 225 496 A2

(12)

(88) Date of publication A3: 20.08.2009 (43) Date of publication: 08.09.2010 Bulletin 2010/36 (21) Application number: 08857718.4 (22) Date of filing: 18.11.2008

(51) International Patent Classification (IPC):  F24D 19/10(2006.01) (86) International application number: PCT/KR2008/006791 (87) International publication number: WO 2009/072759 (11.06.2009 Gazette 2009/24)

(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: 04.12.2007 KR 20070124656 (71) Applicant: Kyungdong Network Co., Ltd. Yeongdeungpo-gu Seoul 150-870 (KR)	(72) Inventor: KIM, Si-hwan Incheon 406-113 (KR) (74) Representative: Charles, Glyndwr  Reinhard, Skuhra, Weise & Partner GbR Patent- und Rechtsanwälte Friedrichstrasse 31 80801 München 80801 München (DE)