(19)

(11)

EP 4 433 674 A1

(12)

(43) Date of publication: 25.09.2024 Bulletin 2024/39 (21) Application number: 22783359.7 (22) Date of filing: 12.08.2022

(51) International Patent Classification (IPC):  E04G 23/08(2006.01) E02F 3/96(2006.01) (52) Cooperative Patent Classification (CPC): E04G 23/082; E02F 3/965 (86) International application number: PCT/FI2022/050528 (87) International publication number: WO 2023/037042 (16.03.2023 Gazette 2023/11)

(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: 13.09.2021 FI 20215964 (71) Applicant: Turun Aluepurkaus Oy 21420 Lieto (FI)	(72) Inventor: VESALAINEN, Jukka 21420 LIETO (FI) (74) Representative: Väänänen, Janne Kalervo  Vanarix Oy Laaksolahdentie 74 02730 Espoo 02730 Espoo (FI)