(19)

(11)

EP 4 305 262 A1

(12)

(43) Date of publication: 17.01.2024 Bulletin 2024/03 (21) Application number: 22722289.0 (22) Date of filing: 11.03.2022

(51) International Patent Classification (IPC):  E04G 21/26(2006.01) E04B 1/04(2006.01) (52) Cooperative Patent Classification (CPC): E04G 21/26; E04B 1/04 (86) International application number: PCT/FI2022/050157 (87) International publication number: WO 2022/189708 (15.09.2022 Gazette 2022/37)

(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: 12.03.2021 FI 20215273 (71) Applicant: Stedox Ab Oy 68570 Luoto (FI)	(72) Inventor: SUNDSTRÖM, Dennis 68810 Ytteresse (FI) (74) Representative: Kolster Oy Ab  Salmisaarenaukio 1 P.O. Box 204 00181 Helsinki 00181 Helsinki (FI)