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EP 4 490 461 A1

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(43) Date of publication: 15.01.2025 Bulletin 2025/03 (21) Application number: 23715268.1 (22) Date of filing: 09.03.2023

(51) International Patent Classification (IPC):  F27B 3/18(2006.01) F27D 3/00(2006.01) F27D 17/00(2006.01) C21C 5/56(2006.01) F27D 13/00(2006.01) (52) Cooperative Patent Classification (CPC): F27B 3/18; F27D 3/0025; F27D 13/002; F27D 17/003; C21C 5/565 (86) International application number: PCT/IT2023/050069 (87) International publication number: WO 2023/170721 (14.09.2023 Gazette 2023/37)

(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: 10.03.2022 IT 202200004565 (71) Applicant: DANIELI & C. OFFICINE MECCANICHE S.P.A. 33042 Buttrio (UD) (IT)	(72) Inventors: RIGA, Enrico 33100 UDINE (IT) ANSOLDI, Marco 33100 UDINE (IT) TRUCILLO, Emanuele 33100 UDINE (IT) TESTA, Luigi 34143 TRIESTE (IT) (74) Representative: Petraz, Gilberto Luigi et al GLP S.r.l. Viale Europa Unita, 171 33100 Udine Viale Europa Unita, 171 33100 Udine (IT)