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EP 4 175 818 A1

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(43) Date of publication: 10.05.2023 Bulletin 2023/19 (21) Application number: 21742520.6 (22) Date of filing: 05.07.2021

(51) International Patent Classification (IPC):  B29C 65/08(2006.01) A61F 13/15(2006.01) B29C 65/78(2006.01) B29L 31/48(2006.01) (52) Cooperative Patent Classification (CPC): B29L 2031/4878; B29C 65/7885; B29C 65/08; A61F 13/15739; A61F 2013/15869; B29C 65/7894; B29C 66/1122; B29C 66/43; B29C 66/81465; B29C 66/83511; B29C 66/876; B29C 66/8762; B29C 65/083 (86) International application number: PCT/IB2021/055991 (87) International publication number: WO 2022/009057 (13.01.2022 Gazette 2022/02)

(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: 06.07.2020 IT 202000016204 (71) Applicant: GDM S.P.A. 40133 Bologna (IT)

(72) Inventors: PIANTONI, Matteo 24021 ALBINO (BERGAMO) (IT) RESMINI, Gabriele 26019 VAILATE (CREMONA) (IT) ROSANI, Marco 26019 VAILATE (CREMONA) (IT) SPATTI, Maurizio 25058 SULZANO (BRESCIA) (IT) FUSAR POLI, Aldo 26010 OFFANENGO (CREMONA) (IT) DUCHINI, Andrea 26012 CASTELLEONE (CREMONA) (IT) (74) Representative: Puggioli, Tommaso  Bugnion S.p.A. Via di Corticella, 87 40128 Bologna 40128 Bologna (IT)