(19)

(11)

EP 2 024 137 A1

(12)

(43) Date of publication: 18.02.2009 Bulletin 2009/08 (21) Application number: 07736820.7 (22) Date of filing: 30.04.2007

(51) International Patent Classification (IPC):  B24C 1/00(2006.01) B24C 5/04(2006.01) (86) International application number: PCT/IT2007/000317 (87) International publication number: WO 2007/125565 (08.11.2007 Gazette 2007/45)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR Designated Extension States: AL BA HR MK RS (30) Priority: 02.05.2006 IT VR20060080 (71) Applicant: SAPIO PRODUZIONE IDROGENO OSSIGENO S.r.l. I-20122 Milano (IT)	(72) Inventor: SEGHEZZI, Andrea 20052 Monza (MI) (IT) (74) Representative: Petraz, Gilberto Luigi et al GLP S.r.l. Piazzale Cavedalis 6/2 33100 Udine 33100 Udine (IT)