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US 4,300,695 AGranted
Folding container
OwnerTe-Chi Hsuinventor
Life of this patent
Estimating the term…
Abstract
A collapsible container molded from plastic materials, comprising four side walls, a bottom, and a lid. Side walls are hinged to the bottom to fold inwardly. The hinges are designed to facilitate mold-removing after injection molding. Groove ribs and strip ribs are provided to hold the structure rigid. Eave device is provided on the hinges to make the container weather-proof.
Claims8
A folding container molded from plastic materials comprising:
- four side walls having an inner face, an outer face and bottom borders, a bottom having a border and a lower face, and a lid;
- and
- individual hing elements alternatively provided on said border of said bottom and on said bottom borders of said side walls to interlock, those of said hinge elements on said border of said bottom having no base portion so that a mold thereof can be removed from said lower face of said bottom.
Dependencies are inferred from the claim text.