(19)

(11)

EP 3 801 865 A1

(12)

(43) Date of publication: 14.04.2021 Bulletin 2021/15 (21) Application number: 19734877.4 (22) Date of filing: 22.05.2019

(51) International Patent Classification (IPC):  B01J 4/00(2006.01) B05B 1/00(2006.01) B05B 3/00(2006.01) (86) International application number: PCT/IB2019/000397 (87) International publication number: WO 2019/224597 (28.11.2019 Gazette 2019/48)

(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: 25.05.2018 IT 201800005722 (71) Applicant: Cassani, Stefano 40026 Imola, Bologna (IT)	(72) Inventors: RIVOLA, Pietro 40026 Imola (BO) (IT) CASSANI, Stefano 40026 Imola (BO) (IT) (74) Representative: Gianelli, Luca  Studio Legale Gianelli IP Law Firm Via Taglio, 22 41121 Modena 41121 Modena (IT)