(19)

(11)

EP 1 409 797 A1

(12)

(43) Date of publication: 21.04.2004 Bulletin 2004/17 (21) Application number: 01978001.4 (22) Date of filing: 19.10.2001

(51) International Patent Classification (IPC)7: E02F 5/04, E02F 5/10 (86) International application number: PCT/AU2001/001349 (87) International publication number: WO 2002/033181 (25.04.2002 Gazette 2002/17)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR (30) Priority: 19.10.2000 AU PR089100 (71) Applicant: Menz, Graham Hargrave City Beach, WA 6106 (AU)	(72) Inventor: Menz, Graham Hargrave City Beach, WA 6106 (AU) (74) Representative: Alexander, Thomas Bruce  BOULT WADE TENNANT,Verulam Gardens70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)