Special receptacle or package – Structural features for vertical stacking – i.e. – similar... – Closure structure specified for stacking
Patent
1975-12-12
1977-08-16
Lowrance, George E.
Special receptacle or package
Structural features for vertical stacking, i.e., similar...
Closure structure specified for stacking
206511, B65D 2102
Patent
active
040421112
ABSTRACT:
A nestable plastic container for handling and storage of bulk material such as food products is provided with three parallel, laterally spaced, downwardly extending hollow ridges forming supporting members. These ridges permit the use of a fork lift to handle the container. The ridges are hollow and open to the interior of the container but they may be easily cleaned by reason of the fact that they extend substantially the full length of the bottom of the container, and also by reason of the fact that they have a trapezoidal cross-section for easy access to their interiors. Specially designed ridges on the cover of the container receive one of the downwardly extending ridges of another container securing it against lateral motion, and thereby permitting safe stacking of multiple containers.
REFERENCES:
patent: D201398 (1965-06-01), Burns
patent: 2761582 (1956-09-01), Moore
patent: 3376046 (1968-04-01), Kivett
patent: 3539552 (1970-10-01), Mounts
patent: 3759416 (1973-09-01), Constantine
Lowrance George E.
Pennsylvania Pacific Corporation
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