(19)

(11)

EP 3 423 646 A1

(12)

(43) Date of publication: 09.01.2019 Bulletin 2019/02 (21) Application number: 17759326.6 (22) Date of filing: 02.03.2017

(51) International Patent Classification (IPC):  E04B 5/48(2006.01) E04C 2/32(2006.01) E04C 2/52(2006.01) E04C 2/08(2006.01) (86) International application number: PCT/FI2017/050135 (87) International publication number: WO 2017/149203 (08.09.2017 Gazette 2017/36)

(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 Designated Validation States: MA MD (30) Priority: 02.03.2016 FI 20165168 (71) Applicant: New Invest Oy 84100 Ylivieska (FI)	(72) Inventor: ERVASTI, Ari 84100 Ylivieska (FI) (74) Representative: Berggren Oy, Helsinki & Oulu  Isokatu 32 90100 Oulu 90100 Oulu (FI)