(19)

(11)

EP 2 545 225 A2

(12)

(88) Date of publication A3: 27.10.2011 (43) Date of publication: 16.01.2013 Bulletin 2013/03 (21) Application number: 11736666.6 (22) Date of filing: 26.01.2011

(51) International Patent Classification (IPC):  E04B 1/68(2006.01) E04F 13/14(2006.01) E04F 13/08(2006.01) (86) International application number: PCT/FI2011/000005 (87) International publication number: WO 2011/092373 (04.08.2011 Gazette 2011/31)

(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: 26.01.2010 FI 20100024 (71) Applicant: Stonel OY 51200 Kangasniemi (FI)	(72) Inventor: TIIROLA, Samuli 41440 Ruuhimâki (FI) (74) Representative: Nieminen, Taisto Tapani  Patenttitoimisto T. Nieminen Oy, P.O. Box 65 33201 Tampere 33201 Tampere (FI)