초록 ▼

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

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.

대표청구항 ▼

A closure for a container, the closure comprising an elongated arcuate strip of substantially planar material having opposed ends and elongated parallel edges, the opposed ends being joinable in a mutual overlapping relation; one of said elongated edges has a border having a first crease line extend

A closure for a container, the closure comprising an elongated arcuate strip of substantially planar material having opposed ends and elongated parallel edges, the opposed ends being joinable in a mutual overlapping relation; one of said elongated edges has a border having a first crease line extending substantially parallel to said edges, a plurality of crease lines extending perpendicular thereto and extending to the one of said elongated edges defining a plurality of adjoining panels, each of said adjoining panels having an oblique crease line extending from the first crease line and one of the perpendicularly extending crease lines, parting off a triangular edge element, said border has a second crease line extending substantially parallel to said first crease line defining a narrow inner band adjoining said panels, said second crease line defines a reinforced lip about a mouth of said container when said border is folded inwardly and outwardly about said second and first crease lines, respectively, said panels being recessed from said mouth and foldable and unfoldable simultaneously over each other between an open condition, wherein like containers an nestable, and a closed condition, wherein said panels, upon being pressed inwardly, collectively lock in place.