(19)

(11)

EP 2 844 799 A1

(12)

(43) Date of publication: 11.03.2015 Bulletin 2015/11 (21) Application number: 13785039.2 (22) Date of filing: 12.02.2013

(51) International Patent Classification (IPC):  E01F 15/04(2006.01) E02D 27/50(2006.01) E02D 5/80(2006.01) (86) International application number: PCT/SE2013/050119 (87) International publication number: WO 2013/165295 (07.11.2013 Gazette 2013/45)

(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 Designated Extension States: BA ME (30) Priority: 03.05.2012 SE 1250446 (71) Applicant: Blue Systems AB 426 58 Västra Frölunda (SE)	(72) Inventor: NILSSON, Håkan S-421 57 Västra Frölunda (SE) (74) Representative: Valea AB  Box 1098 405 23 Göteborg 405 23 Göteborg (SE)