(19)

(11)

EP 0 550 480 A1

(12)

(43) Date of publication: 14.07.1993 Bulletin 1993/28 (21) Application number: 91916004.0 (22) Date of filing: 20.09.1991

(51) International Patent Classification (IPC):  B65D 51/ 20( . ) B65D 77/ 20( . ) (86) International application number: PCT/CA1991/000340 (87) International publication number: WO 1992/005085 (02.04.1992 Gazette 1992/08)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL (30) Priority: 21.09.1990 CA 19902025940 08.04.1991 US 19910681827 (71) Applicant: WITT, Stephen, H. Smithville, Ontario L0R 2AO (CA)	(72) Inventor: WITT, Stephen, H. Smithville, Ontario L0R 2AO (CA) (74) Representative: Stuart, Ian Alexander, et al  MEWBURN ELLIS York House 23 Kingsway London WC2B 6HP London WC2B 6HP (GB)