(19)

(11)

EP 2 528 798 A1

(12)

(43) Date of publication: 05.12.2012 Bulletin 2012/49 (21) Application number: 11736545.2 (22) Date of filing: 31.01.2011

(51) International Patent Classification (IPC):  B61L 29/00(2006.01) (86) International application number: PCT/AU2011/000093 (87) International publication number: WO 2011/091480 (04.08.2011 Gazette 2011/31)

(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: 02.03.2010 AU 2010900881 29.01.2010 AU 2010900361 (71) Applicant: QR Limited Brisbane, QLD 4000 (AU)	(72) Inventors: BAINES, Stephen Brisbane, Queensland 4000 (AU) McMAH, Dave Brisbane, Queensland 4000 (AU) (74) Representative: Zeuner Summerer Stütz  Nußbaumstrasse 8 80336 München 80336 München (DE)