(19)

(11)

EP 1 393 005 A1

(12)

(43) Date of publication: 03.03.2004 Bulletin 2004/10 (21) Application number: 02733753.4 (22) Date of filing: 05.06.2002

(51) International Patent Classification (IPC)7: F24F 13/06, F24F 13/075 (86) International application number: PCT/SE2002/001095 (87) International publication number: WO 2003/001124 (03.01.2003 Gazette 2003/01)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR Designated Extension States: AL LT LV MK RO SI (30) Priority: 05.06.2001 SE 0101953 (71) Applicants: Acticon AB 55112 Jönköping (SE) Natvent AB 43164 Mölndal (SE)	(72) Inventor: GILLBRO, H kan S-431 64 Mölndal (SE) (74) Representative: Arwidi, Bengt  Awapatent i Linköping ABGjuterigatan 9 553 18 Jönköping 553 18 Jönköping (SE)