Envelopes – wrappers – and paperboard boxes – Paper or paperboard cup – Including closure
Patent
1995-09-13
1997-10-14
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paper or paperboard cup
Including closure
229 55, 229138, 2299061, B65D 310
Patent
active
056763069
ABSTRACT:
A closure for a container such as a paper cup. The container has an extended upper border having a series of crease lines extending downwardly from an upper edge, which when folded inwardly form a series of rectangles, each having a diagonal corner portion to form a closure panel. The panels may be displaced inwardly of the border in a mutually overlapping relation to close the container. By selecting a fold-over angle greater than neutral, the panels will converge in a mutual reactive relation to converge and lock in an inclined closure cone. The crease lines incorporate an adjoining reinforcing band to fold over within the upper border to form a reinforced band therearound. The containers are stackable when in an unfolded or partially unfolded condition.
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Lankin Kevin
Spoenlein Genny
Elkins Gary E.
Fors Arne I.
Horne D. Doak
Imai Jeffrey T.
Ros-Dan Improved Product Design Ltd.
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