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(11)

EP 4 367 464 A1

(12)

(43) Date of publication: 15.05.2024 Bulletin 2024/20 (21) Application number: 22838101.8 (22) Date of filing: 24.06.2022

(51) International Patent Classification (IPC):  F28D 7/16(2006.01) F28F 9/24(2006.01) F28F 9/013(2006.01) (52) Cooperative Patent Classification (CPC): F28D 7/16; F28F 9/0131; F28F 9/22; F28F 2009/228 (86) International application number: PCT/PL2022/050041 (87) International publication number: WO 2023/282775 (12.01.2023 Gazette 2023/02)

(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 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: 07.07.2021 PL 43837421 (71) Applicant: Famet Spolka Akcyjna 47-225 Kedzierzyn - Kozle (PL)	(72) Inventor: PRZYBYLA, Janusz 47-232 Kedzierzyn - Kozle (PL) (74) Representative: Lampart, Jerzy  Kancelaria Patentowa Ul. Wyzwolenia 1b 42-624 Ossy 42-624 Ossy (PL)