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US 11,370,576 B1Granted
Straddle flange top seal punnet
AssigneeInternational Paper Company
InventorAlex Dean Bevier
Life of this patent
Estimating the term…
Abstract
A container comprising a bottom panel defining a base of the container, and a plurality of side walls extending from the bottom panel and defining an interior area of the container, wherein the plurality of side walls include at least opposing first and second side walls. A first flange structure is connected to each of the first and second side walls along respective fold lines at an upper edge of the container. Each first flange structure straddles a respective side wall and comprises an inner flange portion extending over the interior area of the container, and an outer flange portion, coplanar with the inner flange portion, extending away from the interior of the container, wherein the outer flange portion is defined by one or more tabs.
Claims16
A container comprising:
- a bottom panel defining a base of the container;
- a plurality of side walls extending from the bottom panel and defining an interior area of the container, the plurality of side walls including at least opposing first and second side walls and opposing third and fourth side walls extending between the first and second side walls;
- an upper edge of the container defined by edges of the plurality of the side walls distal from the bottom panel;
- a first flange structure having a length and connected to each of the first and second side walls along respective fold lines at the upper edge of the container;
- each first flange structure straddling a respective side wall and comprising an inner flange portion extending over the interior area of the container, and an outer flange portion, coplanar with the inner flange portion, extending away from the interior of the container, the outer flange portion defined by one or more tabs having a length dimension, parallel to the first and second side walls, that is less than a length dimension of the inner flange portion;
- a second flange structure hingedly attached to each of the third and fourth side walls at the upper edge of the container, each second flange structure including an inner flange portion extending over the interior area of the container and an outer flange portion extending away from the interior area of the container;
- and
- connection flaps hingedly connected to opposing lateral sides of each of the first and second side walls at fold lines and adhered to respective ones of the third and fourth side walls, and a support flange hingedly connected to each of the connection flaps and engaged under a respective inner flange portion of one of the second flange structures.
5 more elements
A container formed of a unitary blank of semi-rigid material, the container comprising:
- a bottom panel defining a base of the container;
- a plurality of side walls comprising opposing first and second side walls connected to the bottom panel and opposing third and fourth side walls connected to the bottom panel;
- an upper edge of the container defined by edges of the plurality of the side walls distal from the bottom panel;
- a first flange structure connected to each of the first and second side walls along respective fold lines at the upper edge of the container;
- a second flange structure connected to each of the third and fourth side walls along respective fold lines at the upper edge of the container;
- each of the first and second flange structures straddling a respective side wall and comprising an inner flange portion extending over the interior area of the container, and an outer flange portion, coplanar with the inner flange portion, extending away from the interior of the container;
- and
- connection flaps hingedly connected to opposing lateral sides of each of the first and second side walls at fold lines and adhered to respective ones of the third and fourth side walls, and a support flange hingedly connected to each of the connection flaps and engaged under both one of the first flange structures and one of the second flange structures.
5 more elements
A blank for forming a container, the blank comprising:
- a bottom panel a having opposing longitudinal edges, and opposing lateral edges;
- a pair of first side panels hingedly connected to the bottom panel at the longitudinal edges;
- a pair of second side panels hingedly connected to the bottom panel at the lateral edges;
- a first flange structure hingedly connected to each of the first side panels at respective first flange fold lines, each first flange fold line comprising a discontinuous fold line defined by two or more fold line segments;
- each first flange structure including a first flange portion extending to one side of the first flange fold line and second flange portion extending to an opposite side of the first flange fold line and wherein the first flange portion of the first flange structure is continuous extending between opposing sides of a respective first side panel;
- a second flange structure hingedly connected to each of the second side panels at respective second flange line fold lines;
- each second flange structure including a first flange portion extending to one side of the second flange fold line and a second flange portion extending to an opposite side of the second flange fold line;
- wherein each of the first side panels includes opposing sides that diverge extending in a direction from the bottom panel, and each of the second side panels includes opposing sides that diverge extending in a direction from the bottom panel and
- wherein the second flange portion of the first flange structure comprises at least one cut line defined in each of the first side panels and spanning between adjacent fold line segments to define at least one tab integral with the first flange portion of the first flange structure.
6 more elements
Dependencies are inferred from the claim text.