(19)

(11)

EP 2 931 594 A1

(12)

(43) Date of publication: 21.10.2015 Bulletin 2015/43 (21) Application number: 13861955.6 (22) Date of filing: 28.11.2013

(51) International Patent Classification (IPC):  B63B 27/00(2006.01) E21C 50/00(2006.01) B63B 35/44(2006.01) E02F 7/00(2006.01) (86) International application number: PCT/AU2013/001380 (87) International publication number: WO 2014/089599 (19.06.2014 Gazette 2014/25)

(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: 11.12.2012 AU 2012905437 (71) Applicants: Nautilus Minerals Pacific Pty Ltd Milton, QLD 4064 (AU) Eda Kopa (Solwara) Limited Port Moresby (PG)	(72) Inventors: JAFFERS, Daal Hallam Milton Queensland 4064 (AU) HOWITT, Michael Milton Queensland 4064 (AU) BERNDT, Roland Gunter Milton Queensland 4064 (AU) (74) Representative: Uno, Jennifer Elizabeth Hayes  HGF Limited Saviour House 9 St Saviourgate York, YO1 8NQ York, YO1 8NQ (GB)