(19)

(11)

EP 3 592 920 A1

(12)

(43) Date of publication: 15.01.2020 Bulletin 2020/03 (21) Application number: 18763755.8 (22) Date of filing: 07.03.2018

(51) International Patent Classification (IPC):  E04G 11/56(2006.01) E04B 2/84(2006.01) E04G 21/26(2006.01) (86) International application number: PCT/FI2018/050169 (87) International publication number: WO 2018/162802 (13.09.2018 Gazette 2018/37)

(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: KH MA MD TN (30) Priority: 10.03.2017 FI 20175223 (71) Applicant: Stedox Ab Oy 68570 Luoto (FI)	(72) Inventor: SUNDSTRÖM, Markus 68810 Ytteresse (FI) (74) Representative: Kolster Oy Ab  (Salmisaarenaukio 1) P.O. Box 204 00181 Helsinki 00181 Helsinki (FI)