(19)

(11)

EP 0 830 279 A1

(12)

(43) Date of publication: 25.03.1998 Bulletin 1998/13 (21) Application number: 96921302.0 (22) Date of filing: 05.06.1996

(51) International Patent Classification (IPC):  B62D 25/ 00( . ) B62D 23/ 00( . ) B62D 29/ 00( . ) B22D 19/ 04( . ) B62D 27/ 02( . ) B62K 19/ 18( . ) (86) International application number: PCT/US1996/009083 (87) International publication number: WO 1996/039322 (12.12.1996 Gazette 1997/02)

(84) Designated Contracting States: DE FR GB IT (30) Priority: 06.06.1995 US 19950479422 (71) Applicant: ALUMINIUM COMPANY OF AMERICA Alcoa Center, PA 15069-0001 (US)	(72) Inventors: STOL, Israel Alcoa Center, PA 15069-0001 (US) VAN WERT, James, R. Alcoa Center, PA 15069-0001 (US) (74) Representative: Baillie, Iain Cameron  Ladas & Parry, Altheimer Eck 2 80331 München 80331 München (DE)