(19)

(11)

EP 2 313 558 A2

(12)

(88) Date of publication A3: 29.07.2010 (43) Date of publication: 27.04.2011 Bulletin 2011/17 (21) Application number: 09769771.8 (22) Date of filing: 25.06.2009

(51) International Patent Classification (IPC):  E01F 13/12(2006.01) E01F 13/04(2006.01) (86) International application number: PCT/IB2009/052746 (87) International publication number: WO 2009/156963 (30.12.2009 Gazette 2009/53)

(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 TR Designated Extension States: AL BA RS (30) Priority: 26.06.2008 IT BO20080410 (71) Applicant: Cruciat, Luca 40125 Bologna (IT)	(72) Inventor: Cruciat, Luca 40125 Bologna (IT) (74) Representative: Jorio, Paolo et al STUDIO TORTA Via Viotti 9 10121 Torino 10121 Torino (IT)