(19)

(11)

EP 2 994 270 A1

(12)

(43) Date of publication: 16.03.2016 Bulletin 2016/11 (21) Application number: 13765475.2 (22) Date of filing: 09.07.2013

(51) International Patent Classification (IPC):  B24D 13/16(2006.01) (86) International application number: PCT/IB2013/055639 (87) International publication number: WO 2014/181157 (13.11.2014 Gazette 2014/46)

(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 (30) Priority: 07.05.2013 IT MI20130734 (71) Applicant: REN S.r.l. 20123 Milano (IT)	(72) Inventor: FIORE, Nicola I-20015 Parabiago (Milano) (IT) (74) Representative: Long, Giorgio et al Jacobacci & Partners S.p.A. Via Senato, 8 20121 Milano 20121 Milano (IT)