Collapsible shipping container with reinforcing insert

Envelopes – wrappers – and paperboard boxes – Wrapper – Bottle

Patent

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Details

229 23R, B65D 1920, B65D 536

Patent

active

043580491

ABSTRACT:
A collapsible shipping container the side walls of which are foldable when not in use. A foldable reinforcing insert consisting solely of side walls adapted to overlie the foldable side walls of the container which reinforces them against outwardly directed bulging under heavy loading of particulate materials.

REFERENCES:
patent: 2766921 (1956-10-01), Jones
patent: 3291364 (1966-12-01), Fischer
patent: 3337036 (1967-08-01), Peterson
patent: 3376994 (1968-04-01), Flinn
patent: 3643856 (1972-02-01), Jones
patent: 3770186 (1973-11-01), Kupersmit
patent: 3917154 (1975-11-01), Dove
patent: 4085847 (1978-04-01), Jacalone
patent: 4087041 (1978-05-01), Centanni
patent: 4252266 (1981-02-01), Kupersmit

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