(19)

(11)

EP 2 155 987 A2

(12)

(88) Date of publication A3: 06.08.2009 (43) Date of publication: 24.02.2010 Bulletin 2010/08 (21) Application number: 08737414.6 (22) Date of filing: 11.04.2008

(51) International Patent Classification (IPC):  E04H 4/00(2006.01) E04H 4/12(2006.01) (86) International application number: PCT/IB2008/000875 (87) International publication number: WO 2008/125948 (23.10.2008 Gazette 2008/43)

(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 MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 12.04.2007 IT TO20070255 (71) Applicant: Nuova Ceval S.R.L. Aosta (IT)	(72) Inventor: LUCHINI, Claudio I-11100 Aosta (IT) (74) Representative: D'Angelo, Fabio et al Studio Torta S.r.l. Via Viotti, 9 10121 Torino 10121 Torino (IT)