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US 5,356,026 AGranted
Double seal container
AssigneePlastics, Inc.
InventorsBradley W. Andress, Dale V. Rude, Dick E. VanKeuren
Life of this patent
Estimating the term…
Abstract
A container assembly having a lid and a container in which a double seal is formed between the lid and the container, one seal being formed on the upper edge of the container rim and the second seal on the upper internal wall of the container, said seals being mechanically locked to one another in an operative condition wherein, in addition, said assembly is stackable, some size nestable, different size nestable with lids off and different size nestable with lids on.
Claims17
A container assembly, said container assembly including
- a container,
- a lid adapted to be assembled to and disassembled from the container.
- said lid having downwardly depending inner flange means and outer flange means, said flange means defining a seat therebetween at the upper portion of a downwardly open space adapted to receive a container rim,
- said lid further including resilient hinge means formed integrally with the lid and located between the flange means whereby said flange means may flex toward and away from one another,
- first mechanical locking means carried by the lower end portion of the outer flange means and adapted to engage the container,
- said container having second mechanical locking means carried by the upper portion of the container and adapted, when the lid is fully assembled to the container, to engage the first mechanical locking means,
- said mechanical locking means, when engaged, forcing the upper edge of the container into seating engagement in the seat formed between the inner and outer lid flange means,
- the force causing the mechanical locking means to urge the upper edge of the container into seating engagement in the seat formed between the inner and outer flange means is derived from the flexing of the material in the hinge means.
5 more elements
A container assembly, said container assembly including
- a container,
- a lid adapted to be assembled to and disassembled from the container,
- said lid having downwardly depending inner flange means and outer flange means, said flange means defining a seat therebetween at the upper portion of a downwardly open space adapted to receive a container rim,
- said lid further including resilient hinge means formed integrally with the lid located between the flange means and having a lesser thickness than those portions of the flange means which flank said lesser thickness, whereby the flexing action of said hinge means is unhindered and said flange means may flex toward and away from one another,
- first mechanical locking means carried by the lower end portion of the outer flange means and adapted to engage the container,
- said container having second mechanical locking means carried by the upper portion of the container and adapted, when the lid is fully assembled to the container, to engage the first mechanical locking means,
- said mechanical locking means, when engaged, forcing the upper edge of the container into seating engagement in the seat formed between the inner and outer lid flange means,
- the force causing the mechanical locking means to urge the upper edge of the container into seating engagement in the seat formed between the inner and outer flange means being derived from the flexing of the material in the hinge means.
5 more elements
Dependencies are inferred from the claim text.