(19)

(11)

EP 2 712 352 A1

(12)

(43) Date of publication: 02.04.2014 Bulletin 2014/14 (21) Application number: 11730543.3 (22) Date of filing: 03.06.2011

(51) International Patent Classification (IPC):  B65D 90/04(2006.01) E02B 5/02(2006.01) E04H 4/14(2006.01) E02B 3/12(2006.01) E04H 4/04(2006.01) (86) International application number: PCT/CA2011/000639 (87) International publication number: WO 2012/162782 (06.12.2012 Gazette 2012/49)

(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 (71) Applicant: Wiebe, Cliff Calgary, AB T2P 4G8 (CA)	(72) Inventor: Wiebe, Cliff Calgary, AB T2P 4G8 (CA) (74) Representative: Zardi, Marco  M. Zardi & Co. SA Via Pioda 6 6900 Lugano 6900 Lugano (CH)