(19)

(11)

EP 2 477 746 A1

(12)

(43) Date of publication: 25.07.2012 Bulletin 2012/30 (21) Application number: 10713507.1 (22) Date of filing: 12.03.2010

(51) International Patent Classification (IPC):  B02C 13/20(2006.01) B02C 13/286(2006.01) (86) International application number: PCT/IB2010/000520 (87) International publication number: WO 2011/033345 (24.03.2011 Gazette 2011/12)

(84) Designated Contracting States: 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 SE SI SK SM TR (30) Priority: 15.09.2009 IT MO20090225 15.10.2009 IT MO20090252 (60) Divisional application: 11172607.1 (71) Applicant: GEI S.r.l. 41123 Modena (IT)	(72) Inventor: MARCHETTI, Gabriele I-25015 Desenzano del Garda (BS) (IT) (74) Representative: Brunacci, Marco et al BRUNACCI & PARTNERS S.r.l. Via Scaglia Est, 19-31 41126 Modena 41126 Modena (IT)