(19)

(11)

EP 2 867 594 A1

(12)

(43) Date of publication: 06.05.2015 Bulletin 2015/19 (21) Application number: 13808482.7 (22) Date of filing: 28.06.2013

(51) International Patent Classification (IPC):  F24J 2/08(2006.01) F24J 2/06(2006.01) (86) International application number: PCT/SE2013/050820 (87) International publication number: WO 2014/003680 (03.01.2014 Gazette 2014/01)

(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 Designated Extension States: BA ME (30) Priority: 29.06.2012 SE 1250743 (71) Applicant: H2DO AB 111 43 Stockholm (SE)	(72) Inventors: LJUNGGREN, Rolf S-192 69 Sollentuna (SE) DAVIDSSON, Thomas S-181 32 Lidingö (SE) (74) Representative: Noréns Patentbyrå AB  Box 10198 100 55 Stockholm 100 55 Stockholm (SE)