(19)

(11)

EP 0 964 731 A1

(12)

(43) Date of publication: 22.12.1999 Bulletin 1999/51 (21) Application number: 97913023.0 (22) Date of filing: 01.12.1997

(51) International Patent Classification (IPC):  A63H 23/ 10( . ) A63H 30/ 04( . ) A63H 23/ 00( . ) (86) International application number: PCT/AU1997/000813 (87) International publication number: WO 1998/023345 (04.06.1998 Gazette 1998/22)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 29.11.1996 AU 1996PO03915 (71) Applicant: Wombarra Innovations Pty. Ltd. Wombarra, NSW 2515 (AU)	(72) Inventor: HALL, Jason, Grant, Venables Wombarra, NSW 2515 (AU) (74) Representative: Denmark, James  Bailey, Walsh & Co. 5 York Place Leeds LS1 2SD Yorkshire Leeds LS1 2SD Yorkshire (GB)