(19)

(11)

EP 4 537 041 A1

(12)

(43) Date of publication: 16.04.2025 Bulletin 2025/16 (21) Application number: 23819319.7 (22) Date of filing: 08.06.2023

(51) International Patent Classification (IPC):  F41A 21/30(2006.01) F01N 1/00(2006.01) (52) Cooperative Patent Classification (CPC): F41A 21/30 (86) International application number: PCT/FI2023/050334 (87) International publication number: WO 2023/237819 (14.12.2023 Gazette 2023/50)

(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: KH MA MD TN (30) Priority: 10.06.2022 FI 20225514 (71) Applicant: Jägear Oy 02780 Espoo (FI)	(72) Inventors: HELMIKKALA, Ilkka 02780 Espoo (FI) EVERI, Saku 02780 Espoo (FI) (74) Representative: Genip Oy  Heikinkatu 7 48100 Kotka 48100 Kotka (FI)