Composite end panel for can or similar container
AssigneeThe Continental Group, Inc.
InventorAnn E. Cass
Life of this patent
Estimating the term…
Abstract
A composite end panel is adhesively bonded to the sidewall of a can or similar container with the end panel periphery overlying a portion of the sidewall outer surface. A plastic band or hoop is placed on the sidewall, overlapping the edge of the end panel, and shrunk in place through the application of heat. The band seals the cut edge and prevents wicking while insuring that the end panel is retained in position. A fillet of sealant may be applied to the inside of the container at the juncture of the sidewall and the end panel.
Claims10
An improved method of fastening a paper laminate panel to the body of a can or similar container comprising the steps of:
- cutting the end panel, having interior and exterior surfaces, from a sheet of laminate material,
- applying an adhesive sealant to the interior surface periphery of said end panel.
- securing sand adhesive-covered end panel to an end of said container body with at least a portion of said interior surface periphery overlying the outer surface of said body,
- applying an annular band or hoop of heat-shrinkable plastic over the exterior surface periphery of said end panel, and
- heating said band or hoop to shrink the same, thereby further securing said end panel to said body and preventing end panel delamination and separation.
An improved method of fastening a paper laminate end panel to the body of a can or similar container comprising the steps of:
- cutting the end panel from a sheet of laminate material,
- applying an adhesive sealant to the periphery of said end panel,
- securing said adhesive covered end panel to an end of said container body with at least a portion of said periphery overlying the outer surface of said body, said end panel being formed with a plurality of gussets in said periphery to enhance the flexibility thereof, whereby said end panel may be attached to said body without excessive wrinkling,
- applying an annular band of heat shrinkable plastic over said end panel periphery, and
- heating said band to shrink said plastic thereby further securing said end panel to said body and preventing end panel delamination and separation.
An improved container comprising a container body, a laminated end panel adhesively attached to an end of said body, said end panel comprising a central panel portion and a peripheral portion, said peripheral portion having a plurality of flexibility enhancing gussets formed therein, at least at part of said peripheral portion being attached to the outer surface of said body, and an annular band of heat-shrinkable plastic material overlying the part of said peripheral portion attached to said outer body surface for further securing said end panel to said body and preventing end panel delamination and separation.
Dependencies are inferred from the claim text.