End closure for a multi-walled container

Details End closure for a multi-walled container End closure for a multi-walled container

1988-09-28

1989-05-16

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Lifting or suspending element

229 23R, 229 41R, 22912519, 22912533, B65D 536

Patent

active

048302716

ABSTRACT:
A multiwalled container made of corrugated paper board and formed from an open ended sleeve of such multiwalled container board is provided with an end closure that is discreet from the sleeve but is connected thereto via flaps connected to the outer surface of the walls of the sleeve. The closure includes at least one panel connected to the sleeve by the flaps and providing a bridging member extending across the open end of the sleeve and functioning to resist outward deflection of the side walls of the sleeve via tension in the bridging member when said container is erected and foldable into the interior of said sleeve when said container is in knock down condition.

REFERENCES:
patent: 1119208 (1914-12-01), Weiss
patent: 1156250 (1915-10-01), Scott
patent: 1430149 (1922-09-01), Bliss
patent: 1700733 (1929-02-01), Berkowitz
patent: 2567786 (1951-09-01), Rosenberg
patent: 2658664 (1953-11-01), Hennessey
patent: 2766923 (1956-10-01), D'Esposito
patent: 2880866 (1959-04-01), Van Dyck
patent: 4441948 (1984-04-01), Gillard et al.
patent: 4601407 (1986-07-01), Gillard
patent: 4623072 (1986-11-01), Lorenz
Packaging Materials, School of Packaging, pp. 31-33 (1977).

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