Elevated bottom carton
AssigneeTetra Laval Holdings & Finance S.A.
InventorsMats Johansson, Charles Christensen, Rolf Borgstrom
Life of this patent
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Abstract
A carton having an elevated bottom portion extending along the length of an exposed raw paperboard edge to protect the carton and to prevent moisture absorption. Additional elevated portions are provided for additional raw paperboard edges on the bottom of the carton. The present invention alleviates the problem of cartons having soggy bottoms since the point of absorption, the raw paperboard edge, is elevated above the moisture which may be present during distribution from the packaging machine to the retailer. The elevated bottom portion is actually inverted into the carton with planar portions resting on the surface to support the carton.
Claims6
A carton for a liquid food product, the carton having first, second, third and fourth side panels, each side panel ending at a corresponding bottom panel, a first and third opposing bottom panels folded under a second and fourth opposing bottom panels, the fourth bottom panel having a first exposed edge of paperboard or paper transversing the bottom of the carton from the end of the first side panel to the end of the third side panel and a second exposed edge of paperboard or paper substantially perpendicular to the first exposed edge, the carton comprising:
- a first elevated portion extending along the length of the first exposed edge from the end of the first side panel to the end of the third side panel, the first elevated portion inverted into the carton thereby inverting the first exposed edge, the first exposed edge lying on a first horizontal plane;
- a second elevated portion extending along the entire length of the second exposed edge, the second elevated portion inverted into the carton thereby inverting the second exposed edge, the second exposed edge lying on the first horizontal plane;
- a first substantially planar portion defined by one side of the elevated portion and the ends of the fourth side panel and portions of the first and third side panels, the first substantially planar portion substantially perpendicular to the corresponding side panels and lying on a second horizontal plane;
- and
- a second substantially planar portion defined by an opposing side of the elevated portion and the ends of the second side panel and portions of the first and third side panels, the second substantially planar portion substantially perpendicular to the corresponding side panels and lying on the second horizontal plane;
- wherein the first substantially planar portion and the second substantially planar portion define an area on the bottom of the carton larger than the first and second elevated portions and whereby the first horizontal plane lies above the second horizontal plane.
Dependencies are inferred from the claim text.