(19)

(11)

EP 3 997 323 A1

(12)

(43) Date of publication: 18.05.2022 Bulletin 2022/20 (21) Application number: 20737597.3 (22) Date of filing: 07.07.2020

(51) International Patent Classification (IPC):  F02M 35/02(2006.01) F02M 35/024(2006.01) (52) Cooperative Patent Classification (CPC): F02M 35/0201; F02M 35/0202; F02M 35/0214; F02M 35/0216; F02M 35/02416 (86) International application number: PCT/IB2020/056379 (87) International publication number: WO 2021/005507 (14.01.2021 Gazette 2021/02)

(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: 08.07.2019 IT 201900011187 (71) Applicant: Officine Metallurgiche G. Cornaglia S.p.A. 10092 Beinasco (TO) (IT)	(72) Inventors: BERTUCCI, Nazzareno 10092 Beinasco (TO) (IT) CORNAGLIA, Umberto 10092 Beinasco (TO) (IT) GOTELLI, Mauro 10092 Beinasco (TO) (IT) VITAGLIANI, Paolo 10092 Beinasco (TO) (IT) (74) Representative: Robba, Pierpaolo  Interpatent S.R.L. Via Caboto, 35 10129 Torino 10129 Torino (IT)