(19)

(11)

EP 2 864 626 A1

(12)

(43) Date of publication: 29.04.2015 Bulletin 2015/18 (21) Application number: 13751349.5 (22) Date of filing: 20.02.2013

(51) International Patent Classification (IPC):  F03B 3/04(2006.01) (86) International application number: PCT/SE2013/050147 (87) International publication number: WO 2013/126009 (29.08.2013 Gazette 2013/35)

(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: 21.02.2012 SE 1250154 (71) Applicants: Lagerström, Erik 435 43 Pixbo (SE) Skånberg, Torbjörn 436 58 Hovås (SE) Kristiansen, Björn 411 34 Göteborg (SE)	(72) Inventors: Lagerström, Erik 435 43 Pixbo (SE) Skånberg, Torbjörn 436 58 Hovås (SE) Kristiansen, Björn 411 34 Göteborg (SE) (74) Representative: Ström & Gulliksson AB  P.O. Box 4188 203 13 Malmö 203 13 Malmö (SE)