(19)

(11)

EP 4 284 750 A1

(12)

(43) Date of publication: 06.12.2023 Bulletin 2023/49 (21) Application number: 22708604.8 (22) Date of filing: 11.02.2022

(51) International Patent Classification (IPC):  B67B 3/02(2006.01) B67B 3/06(2006.01) (52) Cooperative Patent Classification (CPC): B67B 3/06; B67B 3/02; B67B 3/023 (86) International application number: PCT/IB2022/051227 (87) International publication number: WO 2022/172207 (18.08.2022 Gazette 2022/33)

(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: 12.02.2021 IT 202100003218 (71) Applicant: Arol S.p.A. 14053 Canelli AT (IT)	(72) Inventor: PREGNO, Fabio 14053 Canelli (AT) (IT) (74) Representative: Robba, Pierpaolo  Interpatent S.R.L. Via Caboto, 35 10129 Torino 10129 Torino (IT)