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(11)

EP 3 927 853 A1

(12)

(43) Date of publication: 29.12.2021 Bulletin 2021/52 (21) Application number: 20704306.8 (22) Date of filing: 14.02.2020

(51) International Patent Classification (IPC):  C14B 5/00(2006.01) B26D 5/06(2006.01) B26D 7/06(2006.01) B26D 5/00(2006.01) B26D 7/01(2006.01) D06H 7/24(2006.01) (52) Cooperative Patent Classification (CPC): B26D 5/005; B26D 5/007; B26D 5/06; B26D 7/015; B26D 7/018; B26F 1/3813; C14B 5/00; D06H 7/24 (86) International application number: PCT/EP2020/053848 (87) International publication number: WO 2020/169460 (27.08.2020 Gazette 2020/35)

(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: 19.02.2019 EP 19158075 (71) Applicant: Comelz S.p.A. 27029 Vigevano (IT)	(72) Inventor: CORSICO PICCOLINO, Alessandro 27029 Vigevano (PV) (IT) (74) Representative: Botti, Mario  Botti & Ferrari S.p.A. Via Cappellini, 11 20124 Milano 20124 Milano (IT)