(19)

(11)

EP 2 633 127 A1

(12)

(43) Date of publication: 04.09.2013 Bulletin 2013/36 (21) Application number: 11799308.9 (22) Date of filing: 20.10.2011

(51) International Patent Classification (IPC):  E02D 29/14(2006.01) (86) International application number: PCT/IB2011/054692 (87) International publication number: WO 2012/056381 (03.05.2012 Gazette 2012/18)

(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: 26.01.2011 IT MI20110086 28.10.2010 IT MI20102004 (71) Applicant: Industrie Polieco - M.P.B. Srl 25046 Cazzago San Martino (IT)	(72) Inventor: TONELLI, Luigi I-25040 Corte Franca (BS) (IT) (74) Representative: Jaumann, Paolo  Studio Brevetti Jaumann di Jaumann P. & C. s.a.s. Via San Giovanni sul Muro, 13 20121 Milano 20121 Milano (IT)