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US 7,124,910 B2Granted
Leak-resistant polymeric foam containers
AssigneePactiv Corporation
InventorKate E. Nordland
Life of this patent
Estimating the term…
Abstract
A leak-resistant hinged polymeric foam container comprises a base and a lid. The base comprises a bottom wall and a sidewall that encompasses and extends generally upwardly from the bottom wall. The sidewall comprises a first sealing area and a first generally upwardly projecting wall. The lid includes a second sealing area that is adapted to engage the first sealing area upon securing the lid and the base. The container forms a locking structure for securing the lid and the base. The base and the lid comprise polymeric foams. The container may include a hinge that hingedly connects the base to the lid.
Claims46
A leak-resistant hinged polymeric foam container, comprising:
- a base comprising a bottom wall and a sidewall encompassing and extending generally upwardly from the bottom wall, the sidewall comprising a first sealing area and a first generally upwardly projecting wall, the first sealing area including a first generally outwardly projecting ledge, a second generally outwardly projecting ledge, and a second generally upwardly projecting wall, the second generally upwardly projecting wall encompassing and extending generally upwardly from the second generally outwardly projecting ledge, the first generally outwardly projecting ledge encompassing and extending generally outwardly from the second generally upwardly projecting wall, the first generally upwardly projecting wall encompassing and extending generally upwardly from the first generally outwardly projecting ledge;
- a hinge being connected to the base;
- and
- a lid being pivotally connected to the base by the hinge, between a closed position to engage the base upon closure of the container and an open position to disengage the base upon opening of the container, the lid including a second sealing area that is adapted to engage the first generally outwardly projecting ledge, the second generally outwardly projecting ledge, and the second generally upwardly projecting wall of the first sealing area upon securing the lid and the base in the closed position,
- wherein the container forms locking means for securing the lid and the base and wherein the base comprises a polymeric foam and the lid comprises a polymeric foam.
2 more elements
A leak-resistant hinged polymeric foam container,
- comprising:
- a base comprising a bottom wall and a sidewall encompassing and extending generally upwardly from the bottom wall, the sidewall comprising a first sealing area and a first generally upwardly projecting wall encompassing the first sealing area;
- a hinge being connected to the base, the hinge when in a closed position comprising a first generally horizontal portion, a second generally horizontal portion, and a first generally vertical portion that are integrally connected to each other, the second generally horizontal portion being folded over the first generally horizontal portion, the first generally vertical portion extending generally downwardly from the second generally horizontal portion towards the bottom wall;
- and
- a lid having an outer perimeter and being hingedly connected to the base by the hinge, the lid being adapted to be pivoted about the hinge to engage the base upon closure of the container, the lid including a second sealing area that is adapted to engage the first sealing area upon securing the lid and the base,
- wherein the first generally upwardly projecting wall surrounds the outer perimeter of the lid, the container forms locking means for securing the lid and the base and wherein the base comprises a polymeric foam and the lid comprises a polymeric foam.
3 more elements
A leak-resistant hinged polymeric foam container, comprising:
- a base comprising a bottom wall and a sidewall encompassing and extending generally upwardly from the bottom wall, the sidewall comprising a first sealing area and a first generally upwardly projecting wall, the first sealing area including a first generally outwardly projecting ledge, a second generally outwardly projecting ledge, and a second generally upwardly projecting wall, the second generally upwardly projecting wall encompassing and extending generally upwardly from the second generally outwardly projecting ledge, the first generally outwardly projecting ledge encompassing and extending generally outwardly from the second generally upwardly projecting wall, the first generally upwardly projecting wall encompassing and extending generally upwardly from the first generally outwardly projecting ledge;
- a hinge being connected to the base;
- and
- a lid having an outer perimeter and being pivotally connected to the base by the hinge between a closed position to engage the base upon closure of the container and an open position and to disengage the base upon opening of the container, the lid including a second sealing area that is adapted to engage the first sealing area upon securing the lid and the base in the closed position, with the first generally upwardly projecting wall surrounding the outer perimeter of the lid,
- wherein the first generally upwardly projecting wall forms at least one undercut that extends over the second sealing area of the lid upon securing the lid and the base, and wherein the base comprises a polymeric foam and the lid comprises a polymeric foam.
2 more elements
A leak-resistant hinged polymeric foam container, comprising:
- a base comprising a bottom wall and a sidewall encompassing and extending generally upwardly from the bottom wall, the sidewall comprising a first sealing area and a first generally upwardly projecting wall encompassing the first sealing area;
- a hinge being connected to the base, the hinge when in a closed position comprising a first generally horizontal portion, a second generally horizontal portion, and a first generally vertical portion that are integrally connected to each other, the second generally horizontal portion being folded over the first generally horizontal portion, the first generally vertical portion extending generally downwardly from the second generally horizontal portion towards the bottom wall;
- and
- a lid having an outer perimeter being hingedly connected to the base by the hinge, the lid being adapted to be pivoted about the hinge to engage the base upon closure of the container, the lid including a second sealing area that is adapted to engage the first sealing area upon securing the lid and the base with the first generally upwardly projecting wall surrounding the outer perimeter of the lid,
- wherein the first generally upwardly projecting wall forms at least one undercut that extends over the second sealing area of the lid upon securing the lid and the base, and wherein the base comprises a polymeric foam and the lid comprises a polymeric foam.
2 more elements
A leak-resistant hinged polymeric foam container, comprising:
- a base comprising a bottom wall and a sidewall encompassing and extending generally upwardly from the bottom wall, the sidewall comprising a first sealing area and a first generally upwardly projecting wall, the first sealing area including a first generally outwardly projecting ledge, a second generally outwardly projecting ledge, and a second generally upwardly projecting wall, the second generally upwardly projecting wall encompassing and extending generally upwardly from the second generally outwardly projecting ledge, the first generally outwardly projecting ledge encompassing and extending generally outwardly from the second generally upwardly projecting wall, the first generally upwardly projecting wall encompassing and extending generally upwardly from the first generally outwardly projecting ledge;
- a hinge being connected to the base, the hinge when in a closed position comprising a first generally horizontal portion, a second generally horizontal portion, and a first generally vertical portion that are integrally connected to each other, the second generally horizontal portion being folded over the first generally horizontal portion, the first generally vertical portion extending downwardly from the second generally horizontal portion towards the bottom wall;
- and
- a lid having an outer perimeter and being hingedly connected to the base by the hinge, the lid being adapted to be pivoted about the hinge to engage the base upon closure of the container, the lid including a second sealing area that is adapted to engage the first generally outwardly projecting ledge, the second generally outwardly projecting ledge, and the second generally upwardly projecting wall of the first sealing area upon securing the lid and the base;
- wherein the first generally upwardly projecting wall surrounds the outer perimeter of the lid and forms at least one undercut that extends over the second sealing area of the lid upon securing the lid and the base, and wherein the base comprises a polymeric foam and the lid comprises a polymeric foam.
2 more elements
A leak-resistant hinged polymeric foam container, comprising:
- a base comprising a bottom wall and a sidewall encompassing and extending generally upwardly from the bottom wall, the sidewall comprising a first sealing area and a first generally upwardly projecting wall, the first sealing area including a first generally outwardly projecting ledge, a second generally outwardly projecting ledge and a second generally upwardly projecting wall, the second generally upwardly projecting wall encompassing and extending generally upwardly from the second generally outwardly projecting ledge the first generally outwardly projecting ledge encompassing and extending generally outwardly from the second generally upwardly projecting wall, the first generally upwardly projecting wall encompassing and extending generally upwardly from the first sealing area;
- a hinge being connected to the base;
- and
- a lid being pivotally connected to the base by the hinge between a closed position to engage the base upon closure of the container and an open position to disengage the base upon opening of the container, the lid including a second sealing area that is adapted to engage the first generally outwardly projecting ledge, the second generally outwardly projecting ledge and the second generally upwardly projecting wall of the first sealing area of the base upon securing the lid and the base in the closed position, the second sealing area including a first generally outwardly projecting surface and a first generally upwardly projecting wall, the first generally upwardly projecting wall of the lid encompassing the first generally outwardly projecting surface,
- wherein one of the first sealing area and the second sealing area forms a projection and the other one of the first sealing area and the second sealing area forms a corresponding recess for securing the lid and the base and wherein the base comprises a polymeric foam and the lid comprises a polymeric foam.
2 more elements
A leak-resistant hinged polymeric foam container, comprising:
- a base comprising a bottom wall and a sidewall encompassing and extending generally upwardly from the bottom wall, the sidewall comprising a first sealing area and a first generally upwardly projecting wall encompassing the first sealing area;
- a hinge being connected to the base, the hinge when in a closed position comprising a first generally horizontal portion, a second generally horizontal portion, and a first generally vertical portion that are integrally connected to each other, the second generally horizontal portion being folded over the first generally horizontal portion, the first generally vertical portion extending downwardly from the second generally horizontal portion towards the bottom wall;
- and
- a lid having an outer perimeter being hingedly connected to the base by the hinge, the lid being adapted to be pivoted about the hinge to engage the base upon closure of the container, the lid including a second sealing area that is adapted to engage the first sealing area upon securing the lid and the base,
- wherein the first generally upwardly projecting wall surrounds the outer perimeter of the lid, one of the first sealing area and the second sealing area forms a projection and the other one of the first sealing area and the second sealing area forms a corresponding recess for securing the lid and the base and wherein the base comprises a polymeric foam and the lid comprises a polymeric foam.
2 more elements
Dependencies are inferred from the claim text.