(19)

(11)

EP 3 956 083 A1

(12)

(43) Date of publication: 23.02.2022 Bulletin 2022/08 (21) Application number: 20723932.8 (22) Date of filing: 09.04.2020

(51) International Patent Classification (IPC):  B21F 5/00(2006.01) B21J 9/02(2006.01) B21K 27/04(2006.01) B21J 5/08(2006.01) B21K 5/16(2006.01) B25B 15/00(2006.01) (52) Cooperative Patent Classification (CPC): B21F 5/005; B21J 5/08; B21K 5/16; B21J 9/022; B21K 27/04 (86) International application number: PCT/IB2020/053406 (87) International publication number: WO 2020/212813 (22.10.2020 Gazette 2020/43)

(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: 18.04.2019 IT 201900006052 (71) Applicant: F.lli Mauri S.r.l. 23852 Garlate (Lecco) (IT)	(72) Inventor: MAURI, Luca 23852 Garlate (LC) (IT) (74) Representative: Stucovitz, Alessandro et al Dott. Ing. Prof. Alfredo Raimondi S.r.l. Piazzale Luigi Cadorna, 15 20123 Milano 20123 Milano (IT)