Collapsible container

Abstract

A collapsible container with angularly related multiple folding sections, each section extending at an angle to the vertical, and flexure zones between adjacent sections for flexibly moving the sections between a first open position in the expanded container and a second position folded upon itself in the collapsed container, the flexure zones resisting movement of the sections in both the fully expanded container and the collapsed container, as well as any intermediate position wherein only selected flexure zones are in an open position.

Description

technical field [0001] The present invention generally relates to molded plastic containers of the type commonly used for various purposes including storage of food or non-edible items, such containers preferably being adapted to receive suitable seals or lids. More specifically, the present invention relates to a type of container that is not rigid like conventional bowls, but collapses or folds into a compact state when empty for easy storage . Background technique [0002] Containers of this type, cups, bowls and the like are generally known in the art and come in a variety of forms. These containers include collapsible cups or glasses in which the glass is formed from telescopically stacked annular wall members that can slide relative to each other between a fully extended condition and a collapsed condition. When the wall members are not integrally formed and slide freely relative to each other, leaks are likely to occur and serve no practical purpose other than as te...

AI Technical Summary

Problems solved by technology

This need for the actual bending of the members in addition to the folding at the film hinges is so pronounced that, at least in some examples shown in Fig. 3 of the Fishman patent, significant bending is required in each inclined wall center drop slot, which would necessarily weaken these wall pieces

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