(19)

(11)

EP 0 199 719 A1

(12)

(43) Date of publication: 05.11.1986 Bulletin 1986/45 (21) Application number: 84904050.0 (22) Date of filing: 30.10.1984

(51) International Patent Classification (IPC):  B22C 15/ 10( . ) (86) International application number: PCT/US1984/001738 (87) International publication number: WO 1986/002582 (09.05.1986 Gazette 1986/10)

(84) Designated Contracting States: BE CH DE FR GB LI SE (71) Applicant: GENERAL KINEMATICS CORPORATION Barrington Illinois 60010 (US)	(72) Inventors: BOND, Robert, H. Drawer D Barrington, IL 60010 (US) KRAUS, Richard, B. Drawer D Barrington, IL 60010 (US) (74) Representative: Wain, Christopher Paul, et al  A.A. THORNTON & CO. Northumberland House 303-306 High Holborn London WC1V 7LE London WC1V 7LE (GB)