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US 2018/0002060 A1Published application
Corrugated container with bulge control
AssigneePackaging Corporation of America
InventorsKeith A. Jackson, Nicholas A. Philips, Benjamin Frank
Life of this patent
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Abstract
Wall panels for a corrugated paper board container have bulge control lines formed therein to control the bending of the wall panels as the container is loaded with contents, such as liquid containing contents. The bulge control lines are configured to control the bending of the wall panels to mitigate the possibility of undesirable spouting that makes the containers more difficult to store.
Claims28
A container comprising corrugated paper board, the container comprising:
- first and second side wall panels opposed to one another, the container comprising a plurality of other wall panels other than the first and second side wall panels which other wall panels together with the first and second side wall panels are coupled together and form the walls of the container;
- a bottom or base portion coupled to the first and second side wall panels and to the other wall panels;
- the first and second side wall panels each comprise a panel body including a bottom edge, a top edge, a center between the bottom edge and the top edge, and first and second side edges;
- and
- wherein each panel body comprises a plurality of bulge control lines that extend from a first location at or adjacent to the bottom edge of the panel body to a second location at or adjacent to the top edge of the panel body, the bulge control lines subdividing the panel body into at least three subpanels, the bulge control lines extending from the first location to a second location adjacent to the to the top edge of the panel body, and wherein the bulge control lines are further apart at the first location than at a third location that is above the first location.
2 more elements
A container comprising corrugated paper board, the container comprising:
- first and second side wall panels opposed to one another and that are in respective first and second planes, the container comprising a plurality of other wall panels other than the first and second side wall panels which other wall panels together with the first and second side wall panels are coupled together and form the walls of the container;
- a bottom or base portion coupled to the first and second side wall panels and to the other wall panels;
- and
- wherein the first and second side wall panels each comprise means for subdividing the side wall panel into at least three upright subpanels that bulge out from the respective first and second planes and that extend from the bottom to the top of the container as the container is filled with contents.
1 more element
A wall panel for a corrugated paper board container comprising:
- a panel body comprising corrugated paper board including a bottom edge, a top edge, a center between the bottom edge and the top edge, and first and second side edges;
- the panel body comprising a plurality of bulge control lines that extend from a location at or adjacent to the bottom edge of the panel body to a location at or adjacent to the top edge of the panel body, the bulge control lines subdividing the panel body into at least three subpanels that extend from a location adjacent to the bottom edge of the panel body to a location adjacent to the to the top edge of the panel body;
- and
- wherein the bulge control lines comprise first and second bulge control lines, the first bulge control line comprising a first bulge control line section below the center of the panel body and the second bulge control line comprising a second bulge control line section below the center of the panel body, wherein the first and second bulge control line sections converge along a least a portion of the length of the respective first and second bulge control line sections moving away from the bottom edge and upwardly toward the center of the container.
1 more element
Dependencies are inferred from the claim text.