(19)

(11)

EP 3 681 649 A1

(12)

(43) Date of publication: 22.07.2020 Bulletin 2020/30 (21) Application number: 18783574.9 (22) Date of filing: 11.09.2018

(51) International Patent Classification (IPC):  B08B 15/02(2006.01) F24F 3/16(2006.01) B01L 1/02(2006.01) (86) International application number: PCT/IB2018/056936 (87) International publication number: WO 2019/053592 (21.03.2019 Gazette 2019/12)

(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: 13.09.2017 IT 201700102432 (71) Applicant: Asem S.R.L. 31032 Casale sul Sile (TV) (IT)	(72) Inventor: STANCANELLI, Bruno 3110 Treviso (IT) (74) Representative: Maroscia, Antonio  Maroscia & Associati Srl Piazza del Castello, 26 36100 Vicenza 36100 Vicenza (IT)