(19)

(11)

EP 2 515 950 A1

(12)

(43) Date of publication: 31.10.2012 Bulletin 2012/44 (21) Application number: 10839892.6 (22) Date of filing: 20.12.2010

(51) International Patent Classification (IPC):  A61L 2/10(2006.01) F28F 19/00(2006.01) C02F 1/32(2006.01) (86) International application number: PCT/SE2010/051423 (87) International publication number: WO 2011/078771 (30.06.2011 Gazette 2011/26)

(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: 21.12.2009 SE 0950999 (71) Applicant: Wallenius Water Aktiebolag 112 51 Stockholm (SE)	(72) Inventor: DUPREZ, Johan S-177 60 Järfälla (SE) (74) Representative: Bergström, Johan Erik  Mindmap IPR AB P.O. Box 138 683 23 Hagfors 683 23 Hagfors (SE)