Envelopes – wrappers – and paperboard boxes – Paperboard box – End structure
Patent
1995-06-02
1995-12-19
Shoap, Allan N.
Envelopes, wrappers, and paperboard boxes
Paperboard box
End structure
220612, 220620, 220624, 229400, B65D 314
Patent
active
054762138
ABSTRACT:
A container is provided which includes a tubular-shaped body member and a generally cup-shaped end member positioned within the body member and wherein the body member includes a generally inwardly-curled U-shaped cross-sectional configured end which receives an outwardly extending flange portion of the cup-shaped end member. The end member and the body member of the container include barrier liner layers wherein barrier liner layer of the tubular body member is positioned on the inside thereof and the barrier liner layer of the cup-shaped end member is positioned on the inside of the cup-shaped member so that these barrier liner layers are in face-to-face position on the inside of the cup-shaped end member. A bond is created between these face-to-face positioned barrier liner layers only to cooperate therewith to seal the one end of the container against leakage. No bond is created in the area between the outside of the end member flange portion and the body member U-shaped cross-sectional configured end to allow flexing of the end member and the portion of the body member U-shaped cross-sectional configured end bonded thereto without tearing of the body member barrier liner layer and compromising the seal at the one end of the container.
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McDonald Christopher J.
Shoap Allan N.
Sonoco Products & Company
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