(19)

(11)

EP 0 574 490 A1

(12)

(43) Date of publication: 22.12.1993 Bulletin 1993/51 (21) Application number: 92906652.0 (22) Date of filing: 05.03.1992

(51) International Patent Classification (IPC):  B02C 19/ 06( . ) B29B 17/ 02( . ) B29K 105/ 26( . ) B26D 1/ 00( . ) B29B 17/ 04( . ) (86) International application number: PCT/AU1992/000095 (87) International publication number: WO 1992/015438 (17.09.1992 Gazette 1992/24)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU MC NL SE (30) Priority: 05.03.1991 AU 19910004936 (71) Applicants: KEERS, Richard Anthony Wallasey Merseyside L45 4RE (GB) COWLEY, Barry Anthony South Perth, W.A. 6151 (AU)	(72) Inventors: KEERS, Richard Anthony Wallasey Merseyside L45 4RE (GB) COWLEY, Barry Anthony South Perth, W.A. 6151 (AU) (74) Representative: Jackson, Peter Arthur, et al  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)