(19)

(11)

EP 1 490 636 A1

(12)

(43) Date of publication: 29.12.2004 Bulletin 2004/53 (21) Application number: 03706656.0 (22) Date of filing: 04.03.2003

(51) International Patent Classification (IPC)7: F25B 49/02, F25B 40/00, F25B 30/02 // F24D11:02 (86) International application number: PCT/FI2003/000158 (87) International publication number: WO 2003/074953 (12.09.2003 Gazette 2003/37)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR Designated Extension States: AL LT LV MK RO (30) Priority: 04.03.2002 FI 20020407 (71) Applicant: Ojala, Risto Antero 07110 Hinthaara (FI)	(72) Inventors: OJALA, Risto, Antero FIN-07110 Hinthaara (FI) NYKÄNEN, Juha, Matti FIN-07110 Hinthaara (FI) (74) Representative: Salomäki, Juha Kari Ensio et al JVP-Palvelu Oy,Torikatu 4 05800 Hyvinkää 05800 Hyvinkää (FI)