(19)

(11)

EP 0 050 667 A1

(12)

(43) Date of publication: 05.05.1982 Bulletin 1982/18 (21) Application number: 81901427.0 (22) Date of filing: 16.04.1981

(51) International Patent Classification (IPC):  B65D 25/ 18( . ) (86) International application number: PCT/US1981/000501 (87) International publication number: WO 1981/003163 (12.11.1981 Gazette 1981/27)

(84) Designated Contracting States: DE FR GB NL SE (30) Priority: 28.04.1980 US 19800144545 (71) Applicant: NATIONAL CAN CORPORATION Chicago Illinois 60631 (US)	(72) Inventor: ZENGER, Richard D. Downers Grove, IL 60515 (US)