(19)

(11)

EP 0 157 837 A1

(12)

(43) Date of publication: 16.10.1985 Bulletin 1985/42 (21) Application number: 84903617.0 (22) Date of filing: 01.10.1984

(51) International Patent Classification (IPC):  B62D 35/ 00( . ) (86) International application number: PCT/AU1984/000191 (87) International publication number: WO 1985/001485 (11.04.1985 Gazette 1985/09)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 30.09.1983 AU 19830001655 (71) Applicant: ROYAL MELBOURNE INSTITUTE OF TECHNOLOGY LIMITED Melbourne, VIC 3000 (AU)	(72) Inventors: SAUNDERS, Jeffrey, William Hawthorn, VIC 3122 (AU) HOFFMANN, Peter, Harold Heathmont, VIC 3135 (AU) WATKINS, Simon North Melbourne, VIC 3051 (AU)