(19)

(11)

EP 2 074 354 A1

(12)

(43) Date of publication: 01.07.2009 Bulletin 2009/27 (21) Application number: 07833252.5 (22) Date of filing: 10.10.2007

(51) International Patent Classification (IPC):  F24F 11/00(2006.01) (86) International application number: PCT/KR2007/004941 (87) International publication number: WO 2008/044870 (17.04.2008 Gazette 2008/16)

(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 LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 10.10.2006 KR 20060098208 (71) Applicant: Daewoo Electronics Corporation Seoul (KR)	(72) Inventor: SONG, Kil Hong Seoul (KR) (74) Representative: Turi, Michael  Samson & Partner Patentanwälte Widenmayerstrasse 5 80538 München 80538 München (DE)