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(11)

EP 2 906 873 A1

(12)

(43) Date of publication: 19.08.2015 Bulletin 2015/34 (21) Application number: 13844960.8 (22) Date of filing: 08.10.2013

(51) International Patent Classification (IPC):  F23B 30/00(2006.01) F23B 90/06(2011.01) F24B 5/02(2006.01) F23B 10/00(2011.01) F23B 80/04(2006.01) F24B 1/19(2006.01) A61H 33/06(2006.01) (86) International application number: PCT/FI2013/050974 (87) International publication number: WO 2014/057172 (17.04.2014 Gazette 2014/16)

(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: 09.10.2012 FI 20126055 (71) Applicant: Kettunen, Jouko 83700 Polvijärvi (FI)	(72) Inventor: Kettunen, Jouko 83700 Polvijärvi (FI) (74) Representative: Pitkänen, Hannu Alpo Antero  Patent Agency Pitkänen Oy P.O. Box 1188 70211 Kuopio 70211 Kuopio (FI)