(19)

(11)

EP 3 791 104 A1

(12)

(43) Date of publication: 17.03.2021 Bulletin 2021/11 (21) Application number: 19730220.1 (22) Date of filing: 10.05.2019

(51) International Patent Classification (IPC):  F16L 59/22(2006.01) F16L 59/14(2006.01) (86) International application number: PCT/IB2019/053884 (87) International publication number: WO 2019/215698 (14.11.2019 Gazette 2019/46)

(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: 11.05.2018 IT 201800005259 (71) Applicant: Ecoline S.r.l. 73100 Lecce (LE) (IT)	(72) Inventor: TONOLI, Lorenzo 73100 Lecce (LE) (IT) (74) Representative: Hoffmann Eitle  Hoffmann Eitle S.R.L. Piazza Sigmund Freud 1 20154 Milano 20154 Milano (IT)