(19)

(11)

EP 2 260 173 A1

(12)

(43) Date of publication: 15.12.2010 Bulletin 2010/50 (21) Application number: 09717714.1 (22) Date of filing: 05.03.2009

(51) International Patent Classification (IPC):  E21B 17/10(2006.01) (86) International application number: PCT/AU2009/000268 (87) International publication number: WO 2009/109010 (11.09.2009 Gazette 2009/37)

(84) Designated Contracting States: 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 SE SI SK TR Designated Extension States: AL BA RS (30) Priority: 05.03.2008 AU 2008901065 (71) Applicant: Kwik-Zip Pty Ltd Bunbury, Western Australia 6231 (AU)	(72) Inventor: LINAKER, Jason Bunbury Western Australia 6230 (AU) (74) Representative: Harrison Goddard Foote  106 Micklegate York YO1 6JX York YO1 6JX (GB)