(19)

(11)

EP 4 010 521 A1

(12)

(43) Date of publication: 15.06.2022 Bulletin 2022/24 (21) Application number: 20761916.4 (22) Date of filing: 04.08.2020

(51) International Patent Classification (IPC):  D04B 1/12(2006.01) D02G 3/04(2006.01) D04B 21/08(2006.01) D04B 1/24(2006.01) D02G 3/44(2006.01) D04B 21/20(2006.01) (52) Cooperative Patent Classification (CPC): D04B 1/12; D04B 1/24; D10B 2201/20; D10B 2321/022; D10B 2331/04; D10B 2403/0114; D10B 2501/00; D10B 2501/04; D10B 2401/021; D10B 2401/022; D04B 21/08; D04B 21/207; D02G 3/045 (86) International application number: PCT/IT2020/050196 (87) International publication number: WO 2021/028953 (18.02.2021 Gazette 2021/07)

(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: 09.08.2019 IT 201900014508 (71) Applicant: Yoxoi Srl 33170 Pordenone (PN) (IT)	(72) Inventor: RUZZA, Giacomo 33170 Pordenone (PN) (IT) (74) Representative: Mari, Marco Giovanni et al Ing. Mari & C. S.r.l. Via Garibotti, 3 26100 Cremona 26100 Cremona (IT)