(19)

(11)

EP 4 285 074 A1

(12)

(43) Date of publication: 06.12.2023 Bulletin 2023/49 (21) Application number: 22702789.3 (22) Date of filing: 27.01.2022

(51) International Patent Classification (IPC):  F41J 13/00(2009.01) (52) Cooperative Patent Classification (CPC): F41J 13/00; F41A 31/00; F41A 23/16 (86) International application number: PCT/IB2022/050710 (87) International publication number: WO 2022/162573 (04.08.2022 Gazette 2022/31)

(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: 29.01.2021 IT 202100001820 (71) Applicant: Leonardo S.p.A. 00195 Roma (IT)	(72) Inventors: GIOVANNINI, Andrea 50013 Campi Bisenzio (FI) (IT) FANTONI, Marco 57124 Livorno (IT) (74) Representative: Vitillo, Giuseppe  Barzanò & Zanardo Milano S.p.A. Corso Vittorio Emanuele II, 61 10128 Torino 10128 Torino (IT)