(19)

(11)

EP 0 392 000 A1

(12)

(43) Date of publication: 17.10.1990 Bulletin 1990/42 (21) Application number: 89911235.0 (22) Date of filing: 10.10.1989

(51) International Patent Classification (IPC):  B29C 55/ 06( . ) (86) International application number: PCT/AU1989/000438 (87) International publication number: WO 1990/003881 (19.04.1990 Gazette 1990/09)

(84) Designated Contracting States: DE FR GB NL SE (30) Priority: 10.10.1988 AU 19880000861 (71) Applicant: G.D. ENGINEERING PTY LIMITED Merrylands NSW (AU)	(72) Inventor: DOWN, Ian, Francis Merrylands, NSW 2160 (AU) (74) Representative: Eyles, Christopher Thomas, et al  W.P. THOMPSON & CO. Celcon House 289-293 High Holborn London WC1V 7HU London WC1V 7HU (GB)