(19)

(11)

EP 2 521 823 A2

(12)

(43) Date of publication: 14.11.2012 Bulletin 2012/46 (21) Application number: 11709177.7 (22) Date of filing: 04.01.2011

(51) International Patent Classification (IPC):  E03D 11/14(2006.01) (86) International application number: PCT/IB2011/000001 (87) International publication number: WO 2011/083396 (14.07.2011 Gazette 2011/28)

(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: 08.01.2010 IT UD20100001 (71) Applicant: GIA S.p.A. 28069 Trecate (Novara) (IT)	(72) Inventor: INVERNIZZI, Alma I-28069 Trecate (IT) (74) Representative: Petraz, Gilberto Luigi et al GLP S.r.l. Piazzale Cavedalis 6/2 33100 Udine 33100 Udine (IT)