(19)

(11)

EP 4 255 839 A1

(12)

(43) Date of publication: 11.10.2023 Bulletin 2023/41 (21) Application number: 21701164.2 (22) Date of filing: 13.01.2021

(51) International Patent Classification (IPC):  B66B 19/00(2006.01) (52) Cooperative Patent Classification (CPC): B66B 19/007 (86) International application number: PCT/IB2021/000001 (87) International publication number: WO 2022/118065 (09.06.2022 Gazette 2022/23)

(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: 03.12.2020 IT 202000029768 (71) Applicant: Doppler S.A. 61200 Polykastro (GR)	(72) Inventor: STAVROPOULOS, Stavros 61200 Polykastro (GR) (74) Representative: Mozzanica, Luca  Brevetti Dott. Ing. Digiovanni Schmiedt S.r.l. Via Aldrovandi, 7 20129 Milano 20129 Milano (IT)