(19)

(11)

EP 2 675 963 A1

(12)

(43) Date of publication: 25.12.2013 Bulletin 2013/52 (21) Application number: 13747945.7 (22) Date of filing: 24.04.2013

(51) International Patent Classification (IPC):  E04B 9/04(2006.01) F21V 33/00(2006.01) E04F 13/074(2006.01) F24F 5/00(2006.01) (86) International application number: PCT/FI2013/050461 (87) International publication number: WO 2013/160554 (31.10.2013 Gazette 2013/44)

(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: 25.04.2012 FI 20125452 (71) Applicant: Caverion Suomi Oy 00620 Helsinki (FI)	(72) Inventor: MYYRYLÄINEN, Mikko 00620 Helsinki (FI) (74) Representative: Kolster Oy Ab  Iso Roobertinkatu 23 PO Box 148 00121 Helsinki 00121 Helsinki (FI)