(19)

(11)

EP 2 352 888 A1

(12)

(43) Date of publication: 10.08.2011 Bulletin 2011/32 (21) Application number: 09824280.3 (22) Date of filing: 06.11.2009

(51) International Patent Classification (IPC):  E04C 5/01(2006.01) F16B 3/00(2006.01) E04C 5/18(2006.01) C21D 8/08(2006.01) F16B 7/22(2006.01) E04C 5/16(2006.01) B21C 37/04(2006.01) F16B 7/00(2006.01) F16B 1/00(2006.01) (86) International application number: PCT/AU2009/001448 (87) International publication number: WO 2010/051594 (14.05.2010 Gazette 2010/19)

(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 SM TR (30) Priority: 06.11.2008 AU 2008905736 (71) Applicant: Monkey Bar Couplers Pty Ltd Bentleigh East, VIC 3165 (AU)	(72) Inventor: COMERFORD, Ernest Glen Alplin Queensland 4381 (AU) (74) Representative: Bray, Richard Anthony et al Marks & Clerk LLP Sussex House 83-85 Mosley Street Manchester M2 3LG Manchester M2 3LG (GB)