(19)

(11)

EP 3 899 129 A1

(12)

(43) Date of publication: 27.10.2021 Bulletin 2021/43 (21) Application number: 19850819.4 (22) Date of filing: 20.12.2019

(51) International Patent Classification (IPC):  D06F 81/08(2006.01) (52) Cooperative Patent Classification (CPC): D06F 81/08 (86) International application number: PCT/IB2019/061205 (87) International publication number: WO 2020/129016 (25.06.2020 Gazette 2020/26)

(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: 21.12.2018 IT 201800020896 (71) Applicant: Battistella B.G. Srl 36028 Rossano Veneto (VI) (IT)	(72) Inventors: BATTISTELLA, Daniele 36028 Rossano Veneto (VI) (IT) BATTISTELLA, Guerrino 36028 Rossano Veneto (VI) (IT) (74) Representative: Autuori, Angelo  Autuori & Partners Via Monte Cengio, 32 36100 Vicenza (VI) 36100 Vicenza (VI) (IT)