(19)

(11)

EP 1 751 372 A1

(12)

(43) Date of publication: 14.02.2007 Bulletin 2007/07 (21) Application number: 05734304.8 (22) Date of filing: 06.04.2005

(51) International Patent Classification (IPC):  E04F 15/00(2006.01) E04C 2/30(2006.01) (86) International application number: PCT/CA2005/000519 (87) International publication number: WO 2005/098164 (20.10.2005 Gazette 2005/42)

(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 MC NL PL PT RO SE SI SK TR (30) Priority: 06.04.2004 US 560184 P (71) Applicant: Plante, Réjean Drummondville, QC J2B 6W4 (CA)	(72) Inventor: Plante, Réjean Drummondville, QC J2B 6W4 (CA) (74) Representative: Poulin, Gérard  BREVALEX 3, rue du Docteur Lancereaux 75008 Paris 75008 Paris (FR)