(19)

(11)

EP 1 182 923 A1

(12)

(43) Date of publication: 06.03.2002 Bulletin 2002/10 (21) Application number: 00929122.0 (22) Date of filing: 30.05.2000

(51) International Patent Classification (IPC)7: A01K 63/00 (86) International application number: PCT/AU0000/611 (87) International publication number: WO 0074/476 (14.12.2000 Gazette 2000/50)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT Designated Extension States: AL LT LV MK RO SI (30) Priority: 03.06.1999 AU PP076999 (71) Applicant: USF Johnson Screens (Newcastle) PTY Ltd. Warners Bay, NSW 2282 (AU)	(72) Inventors: EELES, John, William Eleebana, NSW 2282 (AU) JOHNSON, Ronald, Leslie Charlestown, NSW 2290 (AU) (74) Representative: Foster, Mark Charles  Edward Evans Barker Clifford's Inn, Fetter Lane London EC4A 1BZ London EC4A 1BZ (GB)