(19)

(11)

EP 2 321 461 A1

(12)

(43) Date of publication: 18.05.2011 Bulletin 2011/20 (21) Application number: 09788433.2 (22) Date of filing: 13.07.2009

(51) International Patent Classification (IPC):  E01C 11/14(2006.01) (86) International application number: PCT/PT2009/000040 (87) International publication number: WO 2010/008309 (21.01.2010 Gazette 2010/03)

(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 SM TR Designated Extension States: AL BA RS (30) Priority: 16.07.2008 PT 10413208 (71) Applicant: Mgsi- Acessórios Para Indústrias, LDA 3105-121 Pombal (PT)	(72) Inventor: LOPES GONÇALVES, Virgilio, David 3105-110 Pombal (PT) (74) Representative: Pereira da Cruz, Joao et al J. Pereira da Cruz, S.A. Rua Vitor Cordon, 14 1249-103 Lisboa 1249-103 Lisboa (PT)