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(11)

EP 2 504 489 A1

(12)

(43) Date of publication: 03.10.2012 Bulletin 2012/40 (21) Application number: 10833625.6 (22) Date of filing: 20.09.2010

(51) International Patent Classification (IPC):  E01B 17/00(2006.01) A01K 3/00(2006.01) E01B 15/00(2006.01) (86) International application number: PCT/NO2010/000342 (87) International publication number: WO 2011/065834 (03.06.2011 Gazette 2011/22)

(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 SE SI SK SM TR (30) Priority: 27.11.2009 NO 20093434 (71) Applicant: Dahlhaug, Jan Erik 7224 Melhus (NO)	(72) Inventor: Dahlhaug, Jan Erik 7224 Melhus (NO) (74) Representative: Nilsson, Lars et al Awapatent AB Studiegången 3 Box 665 831 40 Östersund 831 40 Östersund (SE)