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(11)

EP 1 684 928 A1

(12)

(43) Date of publication: 02.08.2006 Bulletin 2006/31 (21) Application number: 04796980.3 (22) Date of filing: 04.11.2004

(51) International Patent Classification (IPC):  B21D 53/28(2006.01) F16H 55/17(2006.01) B21K 1/30(2006.01) (86) International application number: PCT/AU2004/001531 (87) International publication number: WO 2005/044482 (19.05.2005 Gazette 2005/20)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR (30) Priority: 07.11.2003 AU 2003906175 (71) Applicant: Bishop Innovation Limited North Ryde, NSW 2113 (AU)	(72) Inventors: DOHMANN, Juergen Redfern, NSW 2016 (AU) MCLEAN, Lyle, John Maraylya, NSW 2765 (AU) (74) Representative: UEXKÜLL & STOLBERG  Patentanwälte Beselerstrasse 4 22607 Hamburg 22607 Hamburg (DE)