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(11)

EP 4 493 399 A1

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(43) Date of publication: 22.01.2025 Bulletin 2025/04 (21) Application number: 23717639.1 (22) Date of filing: 16.03.2023

(51) International Patent Classification (IPC):  B31B 50/59(2017.01) B31F 1/00(2006.01) B31F 1/24(2006.01) B65B 9/04(2006.01) B31B 50/74(2017.01) (52) Cooperative Patent Classification (CPC): B31B 50/592; B31B 2105/001; B65B 9/04; B31F 1/0077; B31B 50/741; B31B 50/88; B31F 1/24; B31F 1/247 (86) International application number: PCT/IB2023/052569 (87) International publication number: WO 2023/175551 (21.09.2023 Gazette 2023/38)

(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: 18.03.2022 IT 202200005393 (71) Applicant: Sarong Societa' Per Azioni 42046 Reggiolo (RE) (IT)	(72) Inventors: BARTOLI, Andrea 19031 Ameglia (LA SPEZIA) (IT) CAPITINI, Davide 19031 Ameglia (LA SPEZIA) (IT) (74) Representative: Persi, Patrizia  Bugnion S.p.A. Via Mario Vellani Marchi, 20 41124 Modena 41124 Modena (IT)