Packaging devices and methods of producing same
OwnerLawrence M. Ridgeway, James M. Leeinventors
Life of this patent
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Abstract
A packaging device has a core that is connected to a sheet of material by a flowable material that sets or cures to harden, such as a two part expandable polyurethane foam. The sheet of material has a plurality of cells that the flowable material enters from a partition that forms the core through an aperture or apertures formed in the sheet of material. The chemistry of the flowable material may be altered to change density, rigidity and flexibility as required by package stresses. The flowable material is effective at creating a durable attachment of the core and sheet of material for forming packaging materials such as reels.
Claims32
A packaging device, comprising:
- a) a first sheet of material comprising a panel and a plurality of cells, wherein an aperture is present in said panel;
- and
- b) a core formed of a flowable and expandable material that sets and connects said sheet of material to said core, wherein said flowable and expandable material extends from an exterior of said sheet of material and through said aperture of said panel and into said plurality of cells.
A method of producing a packaging device, comprising the steps of:
- a) forming a first sheet of material in a desired configuration, said first sheet of material comprising a panel and a plurality of cells, wherein said panel comprises an aperture;
- b) placing a partition having an interior void adjacent to said panel, wherein said interior void is adjacent to said aperture;
- c) placing said flowable and expandable material in said interior void of said partition, wherein said flowable and expandable material flows from said interior void through said aperture and into said plurality of cells;
- d) allowing said flowable and expandable material to cure, wherein said flowable and expandable material forms a solid core, and joins said solid core to said first sheet of material.
Dependencies are inferred from the claim text.