(19)

(11)

EP 2 454 495 A1

(12)

(43) Date of publication: 23.05.2012 Bulletin 2012/21 (21) Application number: 10799482.4 (22) Date of filing: 15.07.2010

(51) International Patent Classification (IPC):  F16B 31/02(2006.01) F16B 33/00(2006.01) (86) International application number: PCT/FI2010/050597 (87) International publication number: WO 2011/007052 (20.01.2011 Gazette 2011/03)

(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 SE SI SK SM TR (30) Priority: 17.07.2009 FI 20095798 (71) Applicant: Ensto Finland Oy 06101 Porvoo (FI)	(72) Inventors: HEIJARI, Mika, Olavi FI-06100 Porvoo (FI) PITKÄNEN, Jaakko, Kullervo FI-06150 Porvoo (FI) TOIVANEN, Antti, Tapio FI-06150 Porvoo (FI) (74) Representative: LEITZINGER OY  Tammasaarenkatu 1 00180 Helsinki 00180 Helsinki (FI)