(19)

(11)

EP 3 829 787 A1

(12)

(43) Date of publication: 09.06.2021 Bulletin 2021/23 (21) Application number: 18749104.8 (22) Date of filing: 17.05.2018

(51) International Patent Classification (IPC):  B09B 3/00(2006.01) B09B 5/00(2006.01) B67D 1/00(2006.01) A47J 31/44(2006.01) B65B 69/00(2006.01) B07C 5/34(2006.01) (86) International application number: PCT/IB2018/000682 (87) International publication number: WO 2019/220163 (21.11.2019 Gazette 2019/47)

(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 (71) Applicant: ACFT Bureau d'Etudes 27170 Barc (FR)	(72) Inventors: PEREIRA DE CAMPOS, Joacir 76000 Rouen (FR) CAMILO RODRIGUES CHELLA, Taina 76000 Rouen (FR) (74) Representative: Cabinet Chaillot  16/20, avenue de l'Agent Sarre B.P. 74 92703 Colombes Cedex 92703 Colombes Cedex (FR)