(19)

(11)

EP 4 569 283 A1

(12)

(43) Date of publication: 18.06.2025 Bulletin 2025/25 (21) Application number: 23765564.2 (22) Date of filing: 10.08.2023

(51) International Patent Classification (IPC):  F27B 3/20(2006.01) F27D 9/00(2006.01) F27B 3/22(2006.01) (52) Cooperative Patent Classification (CPC): F27B 3/22; F27B 3/205; F27D 9/00; F27D 2009/0018; F27D 2009/0045; F27D 2009/0048 (86) International application number: PCT/IB2023/058095 (87) International publication number: WO 2024/033862 (15.02.2024 Gazette 2024/07)

(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: 12.08.2022 IT 202200017304 (71) Applicant: MIWENTI S.R.L. 24062 Costa Volpino (BG) (IT)	(72) Inventor: BIANCHI, Renato 24062 Costa Volpino, Bergamo (IT) (74) Representative: De Lorenzo, Danilo et al Jacobacci & Partners S.p.A. Piazza della Vittoria, 11 25122 Brescia 25122 Brescia (IT)