(19)

(11)

EP 3 394 550 A1

(12)

(43) Date of publication: 31.10.2018 Bulletin 2018/44 (21) Application number: 16810268.9 (22) Date of filing: 25.11.2016

(51) International Patent Classification (IPC):  F28F 1/42(2006.01) F28D 7/16(2006.01) B21C 37/20(2006.01) F28F 1/36(2006.01) (86) International application number: PCT/EP2016/078809 (87) International publication number: WO 2017/108330 (29.06.2017 Gazette 2017/26)

(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: MA MD (30) Priority: 23.12.2015 IT UB20159298 (71) Applicant: Brembana & Rolle S.p.A. 24030 Valbrembo (BG) (IT)	(72) Inventors: ROTTOLI, Marco I-24030 Terno D'Isola (BG) (IT) GARAVAGLIA, Marcello I-20149 Milano (IT) (74) Representative: Giavarini, Francesco et al Zanoli & Giavarini S.p.A. Via Melchiorre Gioia, 64 20125 Milano 20125 Milano (IT)