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US 4,520,943 AGranted
Reclosable plastic container
OwnerJens O. Nielseninventor
Life of this patent
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OwnerJens O. Nielseninventor
Estimating the term…
A bucket or jug shaped plastic container is provided with an annular groove in its upper mouth edge portion, and a lid having a depending edge flange is secured on the container by a double sided locking nose engagement between the lid flange and the walls of the groove. The locking engagement is very firm, but is easily releasable by urging the top edge of the outer container wall portion outwardly and downwardly about a lower annular hinge portion of reduced material thickness, whereby the upper locking part of the outer container wall portion is swung out of its locking engagement and down into a selfstabilized position. The locking engagement at the interior side of the lid flange is releasable simply by a local side pressure on the wall of the container, whereafter the lid can be drawn away. The container is reclosable by the lid, and the lid can be relocked by folding the said outer container wall portion up from its lowered position.
A sales packing of the bucket or jug type, comprising a plastic container, the mouth edge portion of which is provided with an upper annular groove between an inner mouth flange and an outer mouth flange, and a lid having a depending edge flange, which is received in said edge groove so as to engage underneath an annular locking nose portion of the interior side of the outer mouth flange of the container and be inwardly supported by the exterior side of the inner mouth flange, characterized in that additional cooperating locking nose means are provided on the outside of the inner mouth flange of the container and on the inside of the depending edge flange of the lid, respectively, and that the outer mouth flange of the container is designed so as to be outwardly and downwardly foldable into a swung down position, in which a local, radially inwardly directed pressure thereon will result in the inner mouth flange of the container being resiliently inwardly displaced so as to thereby get released from its locking nose engagement with the edge flange of the lid.
Dependencies are inferred from the claim text.