(19)

(11)

EP 3 303 921 A1

(12)

(43) Date of publication: 11.04.2018 Bulletin 2018/15 (21) Application number: 16732758.4 (22) Date of filing: 31.05.2016

(51) International Patent Classification (IPC):  F23D 14/04(2006.01) F23D 14/78(2006.01) F23D 14/64(2006.01) (86) International application number: PCT/IB2016/053189 (87) International publication number: WO 2016/193904 (08.12.2016 Gazette 2016/49)

(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: 04.06.2015 IT UB20151251 (71) Applicant: Polidoro S.p.A. 36015 Schio VI (IT)	(72) Inventors: DALLA VECCHIA, Stefano 36014 Santorso (VI) (IT) DALLA VECCHIA, Laura 36014 Santorso (VI) (IT) (74) Representative: Ripamonti, Enrico et al Giambrocono & C. S.p.A. Via Rosolino Pilo, 19/B 20129 Milano 20129 Milano (IT)