Buckle-proof clamshell container

Details Buckle-proof clamshell container Buckle-proof clamshell container

1987-01-09

1988-12-20

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Including a polygonal, nonrectangular wall

229146, 229902, 229920, 229DIG4, B65D 542

Patent

active

047920858

ABSTRACT:
Disclosed are various diagonal incisions adjacent the hinge line of a clamshell container. These diagonal incisions allow opening of the clamshell container without permanent buckling. Also disclosed are ribs formed above, below, and parallel to, the hinge line of a clamshell container.

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patent: 4273249 (1981-06-01), Florian
patent: 4360147 (1982-11-01), Brauner
patent: 4498589 (1985-02-01), Scott et al.

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