(19)

(11)

EP 3 781 873 A1

(12)

(43) Date of publication: 24.02.2021 Bulletin 2021/08 (21) Application number: 19726191.0 (22) Date of filing: 18.04.2019

(51) International Patent Classification (IPC):  F24D 3/10(2006.01) F16L 55/054(2006.01) F16L 55/053(2006.01) (86) International application number: PCT/NL2019/050231 (87) International publication number: WO 2019/203647 (24.10.2019 Gazette 2019/43)

(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: 19.04.2018 NL 2020798 (71) Applicant: Flamco B.V. 3751 LJ Bunschoten (NL)	(72) Inventors: TIMMERMAN, Jan Hendrik 2803 RC Gouda (NL) REEZIGT, Herman 8072 HJ Nunspeet (NL) (74) Representative: EP&C  P.O. Box 3241 2280 GE Rijswijk 2280 GE Rijswijk (NL)