(19)

(11)

EP 3 377 712 A1

(12)

(43) Date of publication: 26.09.2018 Bulletin 2018/39 (21) Application number: 16802123.6 (22) Date of filing: 14.11.2016

(51) International Patent Classification (IPC):  E04D 3/362(2006.01) E04D 3/367(2006.01) E04D 3/363(2006.01) E04D 3/361(2006.01) (86) International application number: PCT/FI2016/050798 (87) International publication number: WO 2017/085357 (26.05.2017 Gazette 2017/21)

(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: 18.11.2015 FI 20155853 (71) Applicant: Stark, Pertti 21600 Parainen (FI)	(72) Inventor: Stark, Pertti 21600 Parainen (FI) (74) Representative: Finnpatent Oy  Smart Chemistry Park Raisionkaari 55 21200 Raisio 21200 Raisio (FI)