(19)

(11)

EP 3 814 713 A1

(12)

(43) Date of publication: 05.05.2021 Bulletin 2021/18 (21) Application number: 19745318.6 (22) Date of filing: 07.06.2019

(51) International Patent Classification (IPC):  F28D 7/00(2006.01) F28D 9/00(2006.01) (86) International application number: PCT/NL2019/050348 (87) International publication number: WO 2019/235934 (12.12.2019 Gazette 2019/50)

(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 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: 08.06.2018 NL 2021088 (71) Applicant: Apex International Holding B.V. 2275 AD Voorburg (NL)	(72) Inventors: DINULESCU, Mircea 2271 EM Voorburg (NL) KITZHOFER, Jens 47199 Duisburg (NL) (74) Representative: Nederlandsch Octrooibureau  P.O. Box 29720 2502 LS The Hague 2502 LS The Hague (NL)