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EP 4 204 752 A1

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(43) Date of publication: 05.07.2023 Bulletin 2023/27 (21) Application number: 21798441.8 (22) Date of filing: 30.09.2021

(51) International Patent Classification (IPC):  F27B 3/10(2006.01) F27D 1/00(2006.01) F27B 3/12(2006.01) (52) Cooperative Patent Classification (CPC): F27B 3/12; F27B 3/10; F27D 1/0023; F27D 2021/005 (86) International application number: PCT/IB2021/058981 (87) International publication number: WO 2022/070122 (07.04.2022 Gazette 2022/14)

(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: 02.10.2020 ZA 202006098 (71) Applicant: Metix (Pty) Limited Morningside 2128 Johannesburg (ZA)

(72) Inventors: BELFORD, Brett Nicholas 2196 Johannesburg (ZA) TEGNER, Duncan Colin 1448 Johannesburg (ZA) CONRADIE, Philippus Jacobus Fouché 2191 Johannesburg (ZA) PIENAAR, Salomo Hendrik 0182 Pretoria North (ZA) SITTIG, Michael Hugo 0035 Pretoria (ZA) NAIDOO, Marlin 1448 Johannesburg (ZA) GLOVER, Albert Edwill 0081 Pretoria (ZA) (74) Representative: Manitz Finsterwald Patent- und Rechtsanwaltspartnerschaft mbB  Martin-Greif-Strasse 1 80336 München 80336 München (DE)