Package with enlarged base

Patent metadata

Field	Value
Publication number	US-9637299-B2
Application number	US-201614996742-A
Country	US
Kind code	B2
Filing date	Jan 15, 2016
Priority date	Aug 13, 2007
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A microwave heating construct may include a widened base. The construct may be erected by folding end panels of the construct towards one another and optionally securing the panels in the folded position. The construct may be formed from a blank. The construct and/or blank may include a removable portion at least partially defined by a line of disruption.

First claim

What is claimed is:

1. A method of heating a food item comprising:
providing a microwave heating construct that comprises a first main panel and a second main panel opposite one another, a first minor panel and a second minor panel opposite one another, the first minor panel and the second minor panel being foldably joined to the first main panel and the second main panel, a first end panel foldably joined to the first main panel along a first fold line, the first end panel including a pair of side edges that extend divergently from one another from the first main panel to an end edge of the first end panel, and a second end panel foldably joined to the second main panel along a second fold line, the second end panel including a pair of opposed side edges that extend from the second main panel to an end edge of the second end panel, wherein the first end panel and the second end panel each have a length measured from the respective first fold line or second fold line to the respective end edge of the first end panel or second end panel midway between the respective opposed side edges, and wherein the length of the first end panel is greater than the length of the second end panel, and wherein at least one of the first main panel, second main panel, first minor panel, second minor panel, first end panel, and second end panel includes microwave energy interactive material wherein the first main panel, second main panel, first minor panel, second minor panel, first end panel, and second end panel define an interior space for receiving a food item, and exposing the food item within the interior space to microwave energy, so that the microwave energy interactive material converts at least a portion of the microwave energy into heat, and the surface of the food item is at least one of browned and crisped.

2. The method of claim 1 , wherein the end edge of the first end panel and the end edge of the second end panel are free edges of the construct.

3. The method of claim 1 , wherein the end edge of the first end panel is outwardly arcuate in shape.

4. The method of claim 1 , wherein the pair of opposed side edges of the second end panel extend convergently from the second main panel to the end edge of the second end panel.

5. The method of claim 1 , wherein the end edge of the second end panel is substantially linear in shape.

6. The method of claim 1 , wherein the microwave energy interactive material comprises a susceptor, a foil patch, a segmented foil, or any combination thereof.

7. The method of claim 1 , wherein the microwave energy interactive material is operative for converting at least a portion of impinging microwave energy into heat.

8. The method of claim 1 , further comprising a removable portion including at least a portion of at least one of the first main panel, the second main panel, the first minor panel, and the second minor panel.

9. The method of claim 8 , wherein the removable portion is defined at least partially by
a transverse tear line extending substantially across at least one of the first main panel, second main panel, first minor panel, and second minor panel,
an oblique tear line substantially abutting the transverse tear line, and
a cutout adjacent to the oblique tear line.

10. The method of claim 9 , wherein the cutout extends inwardly from an end of the construct and at least partially defines a tab.

11. The method of claim 9 , wherein the cutout is disposed within at least one of the first main panel, second main panel, first minor panel, and second minor panel distal from an end of the construct.

12. The method of claim 8 , wherein
the removable portion is defined at least partially by a transverse tear line extending substantially across each of the first main panel, second main panel, first minor panel, and second minor panel, and
the removable portion includes a grasping feature projecting from at least one of the first main panel and the second main panel distal from the first minor panel and the second minor panel.

13. The method of claim 12 , wherein
the removable portion is a first removable portion,
the transverse tear line is a first transverse tear line,
the grasping feature is a first grasping feature, and
the construct further includes a second removable portion adjacent to the first removable portion, wherein
the second removable portion is defined at least partially by a second transverse tear line extending substantially across each of the first main panel, second main panel, first minor panel, and second minor panel, and
the second removable portion includes a second grasping feature projecting from at least one of the first main panel and the second main panel distal from the first minor panel and the second minor panel.

14. The method of claim 8 , wherein
the removable portion is defined at least partially by a transverse tear line extending substantially across at least the first main panel and the second main panel, and
the removable portion includes a grasping feature defined by a line of disruption in the second minor panel.

15. The method of claim 8 , wherein the removable portion is defined at least partially by a line of disruption extending obliquely across at least one of the first main panel, the second main panel, the first minor panel, and the second minor panel.

16. The method of claim 8 , wherein
at least one of the fold lines adjoining the first main panel, the second main panel, the first minor panel, and the second minor panel is a tear line, and
the removable portion is defined by at least one tear line that adjoins
at least one of the first main panel and the second main panel, and
at least one of the first minor panel and the second minor panel.

17. The method of claim 8 , wherein the removable portion is defined by a line of disruption initiating and terminating proximate an end of at least one of the adjoined panels.

18. The method of claim 17 , wherein the line of disruption includes a first portion extending from an end of at least one of the adjoined panels, a second portion extending obliquely from the first portion, and a third, arcuate portion.

19. The method of claim 18 , wherein the arcuate portion of the line of disruption lies substantially within the first end panel.

20. The method of claim 19 , wherein the arcuate portion of the line of disruption comprises a cut that defines a tab.

21. The method of claim 1 , in combination with the food item, wherein the food item has a surface that is desirably at least one of browned and crisped.

22. The method of claim 1 , wherein
a locking projection extends from the end edge of the second end panel,
the first end panel includes a slot for receiving the locking projection, and
the method further comprises folding the first end panel and the second end panel towards the interior space and inserting the locking projection into the slot.

23. The method of claim 1 , wherein
the construct includes a removable portion comprising at least a portion of at least one of the first main panel, the second main panel, the first minor panel, and the second minor panel, and
the method further comprises at least partially removing the removable portion of the construct.

Assignees

• Graphic Packaging Int Inc

Inventors

• Fitzwater Kelly R

Classifications

• B65D81/3453 Primary

  Rigid containers, e.g. trays, bottles, boxes, cups · CPC title

• B65D2581/3479

  Other metallic compounds, e.g. silver, gold, copper, nickel · CPC title

• B65D2581/3472

  Aluminium or compounds thereof · CPC title

• B65D2581/3474

  Titanium or compounds thereof · CPC title

• B65D5/54

  Lines of weakness to facilitate opening of container or dividing it into separate parts by cutting or tearing ({B65D5/06, B65D5/5233, B65D5/5253 take precedence } ; break-in flaps, or members adapted to be torn-off, to provide pouring openings B65D5/70) · CPC title