(19)

(11)

EP 4 285 054 A1

(12)

(43) Date of publication: 06.12.2023 Bulletin 2023/49 (21) Application number: 22705577.9 (22) Date of filing: 25.01.2022

(51) International Patent Classification (IPC):  F23D 14/06(2006.01) F23D 14/64(2006.01) (52) Cooperative Patent Classification (CPC): F23D 14/06; F23D 2900/14062; F23D 2900/14063; F23D 2203/007; F23D 14/64 (86) International application number: PCT/IB2022/050630 (87) International publication number: WO 2022/162524 (04.08.2022 Gazette 2022/31)

(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: 27.01.2021 IT 202100001640 (71) Applicant: SABAF S.p.A. 25035 Ospitaletto (BS) (IT)	(72) Inventor: DORA, Massimo 25035 Ospitaletto (BS) (IT) (74) Representative: Marietti, Andrea et al Marietti, Gislon e Trupiano S.r.l. Via Larga, 16 20122 Milano 20122 Milano (IT)