(19)

(11)

EP 4 048 572 A1

(12)

(43) Date of publication: 31.08.2022 Bulletin 2022/35 (21) Application number: 19949946.8 (22) Date of filing: 22.10.2019

(51) International Patent Classification (IPC):  B61F 5/34(2006.01) (52) Cooperative Patent Classification (CPC): B61F 5/06; B61F 5/122 (86) International application number: PCT/CA2019/051500 (87) International publication number: WO 2021/077198 (29.04.2021 Gazette 2021/17)

(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 (71) Applicant: National Steel Car Limited Hamilton, Ontario L8N 3J4 (CA)	(72) Inventor: HEMATIAN, Jamal Burlington, Ontario L8M 3J4 (CA) (74) Representative: HGF  HGF Limited 1 City Walk Leeds LS11 9DX Leeds LS11 9DX (GB)