(19)

(11)

EP 2 580 400 A1

(12)

(43) Date of publication: 17.04.2013 Bulletin 2013/16 (21) Application number: 11791793.0 (22) Date of filing: 26.04.2011

(51) International Patent Classification (IPC):  E03D 9/04(2006.01) (86) International application number: PCT/CA2011/050253 (87) International publication number: WO 2011/153637 (15.12.2011 Gazette 2011/50)

(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: 11.06.2010 US 344211 P (71) Applicant: Larouche, René Laval, Québec H7R 5J6 (CA)	(72) Inventor: Larouche, René Laval, Québec H7R 5J6 (CA) (74) Representative: von Bülow, Tam  Rotbuchenstrasse 6 81547 München 81547 München (DE)