(19)

(11)

EP 4 739 463 A1

(12)

(43) Date of publication: 13.05.2026 Bulletin 2026/20 (21) Application number: 24733604.3 (22) Date of filing: 17.06.2024

(51) International Patent Classification (IPC):  B25D 11/06(2006.01) (52) Cooperative Patent Classification (CPC): B25D 11/064; B25D 2250/221; B25D 2250/195; E02F 3/966 (86) International application number: PCT/EP2024/066758 (87) International publication number: WO 2025/008167 (09.01.2025 Gazette 2025/02)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: GE KH MA MD TN (30) Priority: 05.07.2023 FI 20235793 (71) Applicant: Lekatech Oy 47400 Kausala (FI)	(72) Inventors: PELTOLA, Jyri 47400 Kausala (FI) PELTOLA, Tuomo 47400 Kausala (FI) (74) Representative: Väänänen, Janne Kalervo  Vanarix Oy Laaksolahdentie 74 02730 Espoo 02730 Espoo (FI)