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(11)

EP 3 821 173 A1

(12)

(43) Date of publication: 19.05.2021 Bulletin 2021/20 (21) Application number: 19756253.1 (22) Date of filing: 09.07.2019

(51) International Patent Classification (IPC):  F23D 14/22(2006.01) F23C 7/00(2006.01) F23D 14/24(2006.01) (86) International application number: PCT/IB2019/055825 (87) International publication number: WO 2020/012347 (16.01.2020 Gazette 2020/03)

(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: 10.07.2018 IT 201800007091 (71) Applicant: Siti - B&T Group S.p.A. 41043 Formigine (Modena) (IT)	(72) Inventor: TAROZZI, Fabio 41043 Formigine (MO) (IT) (74) Representative: Zoli, Filippo  BRUNACCI & PARTNERS S.r.l. Via Scaglia Est, 19-31 41126 Modena 41126 Modena (IT)