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US 8,708,880 B2Granted
Three-layered containers and methods of making the same
AssigneePactiv Corporation
InventorWarren G. Wiedmeyer
Life of this patent
Estimating the term…
Abstract
A thermally insulated container is disclosed. The container comprises an inner layer having a bottom portion with a bottom closure attached to the bottom portion. The container further comprises an outer layer wrapped around the inner layer. The container further comprises an insulating middle layer sandwiched between the inner layer and the outer layer. The middle layer has at least one aperture formed therein.
Claims13
A method of making a thermally insulated container, the method comprising the acts of:
- providing a bottom blank, an inner layer blank, and an outer layer blank;
- providing a sheet adapted to be used as a middle layer blank;
- dividing the sheet into at least a first middle layer blank and a second middle layer blank, at least one of the first middle layer blank and the second middle layer blank having an aperture formed thereon;
- stacking the inner layer blank, the outer layer blank, and the first middle layer blank such that the first middle layer blank is sandwiched between the inner layer blank and the outer layer blank to form a layered arrangement;
- wrapping the layered arrangement;
- and
- sealing opposing ends of the layered arrangement.
4 more elements
A method of making a thermally insulated container, the method comprising the acts of:
- providing a sheet suitable for use as a middle layer, the sheet comprising an insulating sheet material;
- dividing the sheet into at least a first middle layer and a second middle layer, wherein at least one of the first middle layer and the second middle layer includes an aperture being formed therein;
- forming a first container, the first container including the first middle layer being sandwiched between a first inner layer and a first outer layer;
- and
- forming a second container, the second container including the second middle layer being sandwiched between a second inner layer and a second outer layer.
2 more elements
Dependencies are inferred from the claim text.