(19)

(11)

EP 2 556 346 A1

(12)

(43) Date of publication: 13.02.2013 Bulletin 2013/07 (21) Application number: 11722165.5 (22) Date of filing: 08.04.2011

(51) International Patent Classification (IPC):  G01G 19/44(2006.01) G01G 21/22(2006.01) (86) International application number: PCT/IB2011/051518 (87) International publication number: WO 2011/125048 (13.10.2011 Gazette 2011/41)

(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 (30) Priority: 08.04.2010 IT MO20100104 (71) Applicant: Societa' Cooperativa Bilanciai Campogalliano 41011 Campogalliano (MO) (IT)	(72) Inventor: GRASSELLI, Giuseppe I-42048 Rubiera (RE) (IT) (74) Representative: Crugnola, Pietro et al Luppi Crugnola & Partners S.r.l. Viale Corassori 54 41124 Modena 41124 Modena (IT)