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EP 4 284 568 A1

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(43) Date of publication: 06.12.2023 Bulletin 2023/49 (21) Application number: 21787037.7 (22) Date of filing: 16.09.2021

(51) International Patent Classification (IPC):  B08B 5/00(2006.01) B08B 15/02(2006.01) B01D 47/06(2006.01) B65B 55/02(2006.01) B08B 5/02(2006.01) F24F 3/167(2021.01) A61L 9/14(2006.01) B01D 45/08(2006.01) (52) Cooperative Patent Classification (CPC): B08B 15/023; B65B 31/02; B01D 47/16; A61L 2/14 (86) International application number: PCT/IB2021/058454 (87) International publication number: WO 2022/162450 (04.08.2022 Gazette 2022/31)

(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: 01.02.2021 IT 202100002072 (71) Applicant: Solidea S.r.l. 41051 Castelnuovo Rangone (MO) (IT)	(72) Inventor: BENEDETTI, Gianluca 41051 Castelnuovo Rangone (MO) (IT) (74) Representative: Brunacci, Marco  BRUNACCI & PARTNERS S.r.l. Via Pietro Giardini, 625 41125 Modena (MO) 41125 Modena (MO) (IT)