(19)

(11)

EP 2 721 222 A1

(12)

(43) Date of publication: 23.04.2014 Bulletin 2014/17 (21) Application number: 12800664.0 (22) Date of filing: 06.06.2012

(51) International Patent Classification (IPC):  E02B 15/06(2006.01) (86) International application number: PCT/NO2012/050104 (87) International publication number: WO 2012/173493 (20.12.2012 Gazette 2012/51)

(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: 14.06.2011 NO 20110853 (71) Applicants: Knutsen, Ole Kurt 4262 Avaldsnes (NO) Isotalo, Jaakko, Sakari 4291 Kopervik (NO)	(72) Inventors: Knutsen, Ole Kurt 4262 Avaldsnes (NO) Isotalo, Jaakko, Sakari 4291 Kopervik (NO) (74) Representative: Håmsø Patentbyrå ANS  Postboks 171 4302 Sandnes 4302 Sandnes (NO)