Insulated containers and sidewalls having laterally extending flutes, and methods
AssigneeBurrows Paper Corporation
InventorsJohannes Blok, William H. Carr, Jr.
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Abstract
An insulated container comprises a sidewall formed with an outer layer, an inner layer, and a fluted layer located between the outer and inner layers. The fluted layer includes elongated flutes extending in a substantially lateral direction around the container. The inner layer comprises a paper layer arranged with its machine direction extending substantially perpendicular to the direction in which the flutes extend. The outer layer comprises paper that is capable of stretching sufficiently to accommodate an outer circumference of the container. Additional insulated containers and sidewalls having laterally extending flutes and methods therefor are further provided.
Claims29
An insulating container comprising a sidewall defining an interior area, the sidewall comprising an inner layer, an outer layer, and a fluted layer located between the inner layer and the outer layer, wherein the fluted layer includes elongated flutes extending in a substantially lateral direction around the container, wherein the inner layer comprises a paper layer arranged with its machine direction extending substantially perpendicular to the direction in which the flutes extend, and wherein the outer layer comprises paper that is capable of stretching sufficiently to accommodate an outer circumference of the container.
An insulating container comprising a sidewall defining an interior area, the sidewall comprising a paper inner layer, a paper outer layer, and a paper fluted layer located between the inner layer and the outer layer, wherein the fluted layer includes elongated flutes extending in a substantially lateral direction around the container, the inner layer is arranged with its machine direction extending substantially perpendicular to the direction in which the flutes extend, and the outer layer comprises extensible kraft paper.
A method of making an insulated container comprising:
- a) providing a sidewall including an upper edge, a first seam portion, and a second seam portion, the sidewall further including an inner paper layer, an outer layer of stretchable paper, and a fluted layer located between the inner layer and the outer layer, wherein the fluted layer includes elongated flutes;
- b) curving the sidewall along a circumferential direction, with the flutes extending substantially along the circumferential direction and a machine direction of the inner layer extending substantially perpendicular to the direction in which the flutes extend, until the first seam portion is adjacent the second seam portion;
- and
- c) attaching the second seam portion to the first seam portion to form a shape including an interior area.
Dependencies are inferred from the claim text.