(19)

(11)

EP 2 689 075 A1

(12)

(43) Date of publication: 29.01.2014 Bulletin 2014/05 (21) Application number: 12760514.5 (22) Date of filing: 23.03.2012

(51) International Patent Classification (IPC):  E04B 5/00(2006.01) E04B 5/36(2006.01) E04B 5/40(2006.01) E04C 5/00(2006.01) (86) International application number: PCT/AU2012/000307 (87) International publication number: WO 2012/126065 (27.09.2012 Gazette 2012/39)

(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: 23.03.2011 AU 2011901064 (71) Applicant: Entek Pty Ltd St. Leonards, NSW 2065 (AU)	(72) Inventor: MANNING, Mark, Allan St. Leonard, New South Wales 2065 (AU) (74) Representative: Kalhammer, Georg et al Lederer & Keller Patentanwälte Unsöldstrasse 2 80538 München 80538 München (DE)