(19)

(11)

EP 1 937 912 A1

(12)

(43) Date of publication: 02.07.2008 Bulletin 2008/27 (21) Application number: 05796684.8 (22) Date of filing: 27.10.2005

(51) International Patent Classification (IPC):  E04F 19/04(2006.01) (86) International application number: PCT/PT2005/000018 (87) International publication number: WO 2007/004908 (11.01.2007 Gazette 2007/02)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 06.07.2005 PT 1005605 U (71) Applicant: Carvalhais, Fernando Rodrigues 2845-409 Amora (PT)	(72) Inventor: Carvalhais, Fernando Rodrigues 2845-409 Amora (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)