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(11)

EP 2 491 202 A1

(12)

(43) Date of publication: 29.08.2012 Bulletin 2012/35 (21) Application number: 10825273.5 (22) Date of filing: 11.10.2010

(51) International Patent Classification (IPC):  E04H 4/12(2006.01) B01D 29/15(2006.01) B01D 35/02(2006.01) B01D 39/08(2006.01) B01D 29/00(2006.01) B01D 29/58(2006.01) B01D 35/26(2006.01) C02F 1/00(2006.01) (86) International application number: PCT/SE2010/000240 (87) International publication number: WO 2011/049502 (28.04.2011 Gazette 2011/17)

(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: 21.10.2009 SE 0901359 (71) Applicant: Richnau, Marica 770 14 Nyhammar (SE)	(72) Inventor: Richnau, Marica 770 14 Nyhammar (SE) (74) Representative: Fredriksson, Teresia et al Aros Patent AB P.O. Box 1544 751 45 Uppsala 751 45 Uppsala (SE)