(19)

(11)

EP 2 331 764 A1

(12)

(43) Date of publication: 15.06.2011 Bulletin 2011/24 (21) Application number: 08876048.3 (22) Date of filing: 15.09.2008

(51) International Patent Classification (IPC):  E04C 2/16(2006.01) E04B 1/76(2006.01) E04C 2/24(2006.01) (86) International application number: PCT/IT2008/000594 (87) International publication number: WO 2010/029587 (18.03.2010 Gazette 2010/11)

(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 (71) Applicant: Robor SRL 31055 Quinto di Treviso (TV) (IT)	(72) Inventors: BORSATO, Rogerio I-31038 Paese (TV) (IT) BORSATO, Alberto I-31055 Quinto di Treviso (TV) (IT) (74) Representative: Citron, Massimiliano  Via primo maggio 6 31020 San Fior (TV) 31020 San Fior (TV) (IT)