(19)

(11)

EP 1 092 069 A1

(12)

(43) Date of publication: 18.04.2001 Bulletin 2001/16 (21) Application number: 99927592.8 (22) Date of filing: 17.06.1999

(51) International Patent Classification (IPC)7: E04C 3/32 (86) International application number: PCT/AU9900/491 (87) International publication number: WO 9966/150 (23.12.1999 Gazette 1999/51)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 17.06.1998 AU PP418498 (71) Applicant: RUDDUCK, Dickory Seaforth, NSW 2093 (AU)	(72) Inventor: RUDDUCK, Dickory Seaforth, NSW 2093 (AU) (74) Representative: Cummings, Sean Patrick et al David Keltie Associates,12 New Fetter Lane London EC4A 1AP London EC4A 1AP (GB)