(19)

(11)

EP 3 612 670 A1

(12)

(43) Date of publication: 26.02.2020 Bulletin 2020/09 (21) Application number: 17822027.3 (22) Date of filing: 06.12.2017

(51) International Patent Classification (IPC):  D02G 3/36(2006.01) D02G 3/44(2006.01) D02G 3/38(2006.01) D02G 3/12(2006.01) (86) International application number: PCT/IB2017/057699 (87) International publication number: WO 2018/193296 (25.10.2018 Gazette 2018/43)

(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: MA MD TN (30) Priority: 19.04.2017 IT 201700042999 (71) Applicant: Filtes International S.r.l. Con Socio Unico 25031 Capriolo (Brescia) (IT)	(72) Inventor: GANDOSSI, Giuliano 25031 Capriolo (Brescia) (IT) (74) Representative: Chimini, Francesco  Jacobacci & Partners S.p.A. Piazza della Vittoria 11 25122 Brescia 25122 Brescia (IT)