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(11)

EP 4 158 248 A1

(12)

(43) Date of publication: 05.04.2023 Bulletin 2023/14 (21) Application number: 21730685.1 (22) Date of filing: 19.05.2021

(51) International Patent Classification (IPC):  F23D 14/28(2006.01) F23Q 13/04(2006.01) F23Q 9/02(2006.01) (52) Cooperative Patent Classification (CPC): F23D 14/28; F23Q 9/02; F23Q 13/04; F23D 14/465; F23D 2900/11403 (86) International application number: PCT/IT2021/050149 (87) International publication number: WO 2021/240562 (02.12.2021 Gazette 2021/48)

(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 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: 27.05.2020 IT 202000012529 (71) Applicants: Boschetto, Emiliano 00153 Roma (RM) (IT) Boschetto, Caterina 00124 Roma (RM) (IT)	(72) Inventor: BOSCHETTO, Carlo 00124 ROMA (IT) (74) Representative: Mari, Marco Giovanni et al Ing. Mari & C. S.r.l. Via Garibotti, 3 26100 Cremona 26100 Cremona (IT)