(19)

(11)

EP 0 993 347 A1

(12)

(43) Date of publication: 19.04.2000 Bulletin 2000/16 (21) Application number: 98930928.1 (22) Date of filing: 23.06.1998

(51) International Patent Classification (IPC)7: B21D 51/00 (86) International application number: PCT/GB9801/834 (87) International publication number: WO 9901/243 (14.01.1999 Gazette 1999/02)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 04.07.1997 GB 9714063 (71) Applicant: Crown Cork & Seal Technologies Corporation Alsip, IL 60803-2599 (US)	(72) Inventor: LAMBIN, Claude F-02840 France (FR) (74) Representative: Ratliff, Ismay Hilary  CarnaudMetalbox Technology plc,Downsview Road Wantage,Oxon OX12 9BP Wantage,Oxon OX12 9BP (GB)