(19)

(11)

EP 1 009 555 A1

(12)

(43) Date of publication: 21.06.2000 Bulletin 2000/25 (21) Application number: 98921204.8 (22) Date of filing: 14.05.1998

(51) International Patent Classification (IPC)7: B21C 37/12 (86) International application number: PCT/US9809/858 (87) International publication number: WO 9851/424 (19.11.1998 Gazette 1998/46)

(84) Designated Contracting States: DE ES FR GB IT NL (30) Priority: 14.05.1997 US 46697 P (71) Applicant: Arvin Industries, Inc. ColumbusIndiana 47202-3000 (US)	(72) Inventors: LEBEAU, Phillip, E. Dexter, MO 63841 (US) TURNBOW, Rondal, Wayne Columbus, IN 47203 (US) HOLT, Tommie, A. Dexter, MO 63841 (US) (74) Representative: Tunstall, Christopher Stephen et al Dibb Lupton Alsop,Fountain Precinct Balm Green,Sheffield S1 1RZ Balm Green,Sheffield S1 1RZ (GB)