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(11)

EP 4 334 548 A1

(12)

(43) Date of publication: 13.03.2024 Bulletin 2024/11 (21) Application number: 22722360.9 (22) Date of filing: 02.05.2022

(51) International Patent Classification (IPC):  E04F 15/024(2006.01) F24F 13/068(2006.01) F24F 13/02(2006.01) (52) Cooperative Patent Classification (CPC): E04F 15/02452; E04F 15/02458; E04F 2290/02; F24F 13/0227; F24F 13/068; F24F 2221/40 (86) International application number: PCT/NL2022/050240 (87) International publication number: WO 2022/235157 (10.11.2022 Gazette 2022/45)

(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: 04.05.2021 NL 2028139 (71) Applicant: Goflow Technology IP B.V. 2171 TR Sassenheim (NL)	(72) Inventors: VROEGE, Norbert Peter 2242 EB Wassenaar (NL) KAPPELHOFF, Rogier 1098 AK Amsterdam (NL) (74) Representative: Nederlandsch Octrooibureau  P.O. Box 29720 2502 LS The Hague 2502 LS The Hague (NL)