(19)

(11)

EP 4 182 121 A1

(12)

(43) Date of publication: 24.05.2023 Bulletin 2023/21 (21) Application number: 21748687.7 (22) Date of filing: 28.06.2021

(51) International Patent Classification (IPC):  B24D 7/06(2006.01) B24D 5/06(2006.01) B24B 7/22(2006.01) (52) Cooperative Patent Classification (CPC): B24D 7/06; B24D 2201/00; B24B 7/22; B24D 5/06; B24B 27/0076 (86) International application number: PCT/IT2021/050200 (87) International publication number: WO 2022/013898 (20.01.2022 Gazette 2022/03)

(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: 15.07.2020 IT 202000017206 (71) Applicant: PREMIER S.R.L. 36030 Villaverla (Vicenza) (IT)	(72) Inventor: TREVISAN, Piergiorgio 36030 VILLAVERLA (VI) (IT) (74) Representative: De Filippis, Sara et al Barzanò & Zanardo Roma S.p.A. Via Piemonte 26 00187 Roma 00187 Roma (IT)