(19)

(11)

EP 2 442 639 A1

(12)

(43) Date of publication: 25.04.2012 Bulletin 2012/17 (21) Application number: 09845957.1 (22) Date of filing: 17.06.2009

(51) International Patent Classification (IPC):  A01K 63/04(2006.01) E03C 1/12(2006.01) (86) International application number: PCT/CA2009/000844 (87) International publication number: WO 2010/144990 (23.12.2010 Gazette 2010/51)

(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 TR (71) Applicant: Atlantech Engineering&Associates Incorporated Charlottetown, PEI C1E 2C8 (CA)	(72) Inventors: WRIGHT, Douglas Charlottetown PEI C1E 2C8 (CA) DESBARATS, Adrian Charlottetown PEI C1E 2C8 (CA) DOUCETTE, Chris Charlottetown PEI C1E 2C8 (CA) (74) Representative: Franks, Barry Gerard  BRANN AB P.O. Box 12246 102 26 Stockholm 102 26 Stockholm (SE)