(19)

(11)

EP 0 790 873 A1

(12)

(43) Date of publication: 27.08.1997 Bulletin 1997/35 (21) Application number: 95934731.0 (22) Date of filing: 24.10.1995

(51) International Patent Classification (IPC):  B22D 11/ 10( . ) B22D 41/ 02( . ) B22D 41/ 00( . ) (86) International application number: PCT/GB1995/002505 (87) International publication number: WO 1996/014951 (23.05.1996 Gazette 1996/23)

(84) Designated Contracting States: AT BE DE DK ES FR GB IT LU NL SE (30) Priority: 09.11.1994 US 19940338123 20.04.1995 GB 19950008070 (71) Applicant: Foseco International Limited Swindon, Wiltshire SN31RE (GB)	(72) Inventor: ZACHARIAS, Donald, Richard Parma, OH 44130 (US) (74) Representative: Eyles, Winifred Joyce  Burmah Castrol Group Patents Department Burmah Castrol House Pipers Way Swindon, Wiltshire SN3 1RE Swindon, Wiltshire SN3 1RE (GB)