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(11)

EP 4 529 601 A1

(12)

(43) Date of publication: 02.04.2025 Bulletin 2025/14 (21) Application number: 23729174.5 (22) Date of filing: 11.05.2023

(51) International Patent Classification (IPC):  F24D 3/10(2006.01) F24D 11/02(2006.01) F24D 11/00(2022.01) F28D 20/00(2006.01) (52) Cooperative Patent Classification (CPC): F24D 3/1016; F24D 2220/08; F24D 2220/0278; F24D 11/003; F24D 11/004; F24D 11/0214; F24D 2200/04; F24D 2200/12; F24D 2200/14; F28D 20/0034; F28F 2265/12 (86) International application number: PCT/IB2023/054864 (87) International publication number: WO 2023/227988 (30.11.2023 Gazette 2023/48)

(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA Designated Validation States: KH MA MD TN (30) Priority: 23.05.2022 IT 202200010670 (71) Applicant: Zilmet SpA 35010 Limena (PD) (IT)	(72) Inventor: BENETTOLO, Riccardo 35010 Limena (PD) (IT) (74) Representative: Rocchetto, Elena  Ufficio Veneto Brevetti S.r.l. Via Sorio, 116 35141 Padova 35141 Padova (IT)