(19)

(11)

EP 2 718 633 A2

(12)

(88) Date of publication A3: 24.01.2013 (43) Date of publication: 16.04.2014 Bulletin 2014/16 (21) Application number: 12792312.6 (22) Date of filing: 25.05.2012

(51) International Patent Classification (IPC):  F24H 1/10(2006.01) F24H 9/18(2006.01) (86) International application number: PCT/KR2012/004150 (87) International publication number: WO 2012/165812 (06.12.2012 Gazette 2012/49)

(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: 27.05.2011 KR 20110050757 28.12.2011 KR 20110144654 02.03.2012 KR 20120021823 23.05.2012 KR 20120054843 (71) Applicant: Coway Co., Ltd. Chungcheongnam-do 314-895 (KR)

(72) Inventors: LEE, Kyung-Heon Seoul 151-185 (KR) SON, Tae-Yong Seoul 151-185 (KR) LEE, Soo-Young Seoul 151-185 (KR) MOON, Hyoung-Min Seoul 151-185 (KR) JUNG, Hee-Do Seoul 151-185 (KR) HONG, Jin-Pyo Seoul 151-185 (KR) KIM, Yong-Bum Seoul 151-185 (KR) CHO, Young-Gun Seoul 151-185 (KR) LEE, Hyun-Woo Seoul 151-185 (KR) (74) Representative: Larcher, Dominique  Cabinet Vidon 16B, rue de Jouanet Technopôle Atalante 35703 Rennes Cedex 7 35703 Rennes Cedex 7 (FR)