Microwave heating construct

Patent metadata

Field	Value
Publication number	US-10457466-B2
Application number	US-201715440529-A
Country	US
Kind code	B2
Filing date	Feb 23, 2017
Priority date	Dec 8, 2005
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

Various blanks are provided for forming sleeves, containers, and other constructs for heating, browning, and/or crisping of a food item in a microwave oven, and for holding and/or transporting the food item after heating. The various blanks, sleeves, containers, and other constructs may include a removable portion defined by one or more lines of disruption that enable the removable portion to be separated from the remainder of the blank, sleeve, container, or other construct.

First claim

What is claimed is:

1. A construct for heating a food product, the construct comprising:
a plurality of panels forming an interior space of the construct, the plurality of panels comprise a first main panel, a first minor panel foldably connected to the first main panel at a first longitudinal fold line, a second minor panel foldably connected to the main panel at a second longitudinal fold line, a first major panel foldably connected to the first minor panel at a third longitudinal fold line, and a second major panel foldably connected to the second minor panel at a fourth longitudinal fold line, the first major panel and second major panel being overlapped to form a second main panel, at least one panel of the plurality of panels comprising a microwave energy interactive material;
a plurality of end panels foldably connected to a respective panel of the plurality of panels for closing a first end of the construct, the plurality of end panels comprise a first end panel foldably connected to the first main panel, a first partial end panel foldably connected to the first major panel, and a second partial end panel foldably connected to the second major panel, the first partial end panel and the second partial end panel being overlapped to form a second end panel foldably connected to the second main panel,
the first end panel comprises a female locking feature and the second end panel comprising a male locking feature for being received in the female locking feature to close the first end of the construct,
further comprising an edge being in a lateral direction transverse to the longitudinal direction of the construct, a second end opposite the first end, the second end is an open end defined by the edge.

2. The construct of claim 1 , wherein the female locking feature comprises a slit.

3. The construct of claim 2 , wherein the second end panel comprises an edge and the male locking feature comprises the edge.

4. The construct of claim 3 , wherein the edge of the second end panel is shaped to be received in the slit.

5. The construct of claim 1 , wherein the first partial end panel comprises a first edge and the second partial end panel comprises a second edge, at least a portion of the first edge forms a protrusion, the male locking feature comprises the protrusion and the female locking feature comprises a slit, the protrusion extends from the second end panel into the slit.

6. The construct of claim 1 , wherein the first minor panel includes a fifth longitudinal fold line centrally disposed in the first minor panel and the second minor panel includes a sixth longitudinal fold line centrally disposed in the second minor panel.

7. The construct of claim 6 , wherein the first minor panel includes a first aperture and the second minor panel includes a second aperture.

8. The construct of claim 7 , wherein the fifth longitudinal fold line has respective portions that extend from the first aperture and the sixth longitudinal fold line has respective portions that extend from the second aperture.

9. The construct of claim 1 , further comprising a removable portion defined by at least one tear line extending across the plurality of panels.

10. The construct of claim 9 , wherein the at least one tear line extends in the lateral direction across the construct for separating the removable portion from the construct.

11. A construct for heating a food product, the construct comprising:
a plurality of panels forming an interior space of the construct, the plurality of panels comprise a first main panel, a first minor panel foldably connected to the first main panel at a first longitudinal fold line, a second minor panel foldably connected to the main panel at a second longitudinal fold line, a first major panel foldably connected to the first minor panel at a third longitudinal fold line, and a second major panel foldably connected to the second minor panel at a fourth longitudinal fold line, the first major panel and second major panel being overlapped to form a second main panel, at least one panel of the plurality of panels comprising a microwave energy interactive material;
a plurality of end panels foldably connected to a respective panel of the plurality of panels for closing a first end of the construct, the plurality of end panels comprise a first end panel foldably connected to the first main panel, a first partial end panel foldably connected to the first major panel, and a second partial end panel foldably connected to the second major panel, the first partial end panel and the second partial end panel being overlapped to form a second end panel foldably connected to the second main panel,
the first end panel comprises a female locking feature and the second end panel comprising a male locking feature for being received in the female locking feature to close the first end of the construct, wherein the first end panel is foldably connected to the first main panel at a first curved fold line, the first partial end panel is foldably connected to the first major panel at a second curved fold line, and the second partial end panel is foldably connected to the second major panel at a third curved fold line.

12. The construct of claim 11 , wherein the first end panel has a curved edge, the first curved fold line is convex-shaped, and the curved edge is convex shaped.

13. The construct of claim 11 , wherein the first curved fold line extends between the first longitudinal fold line and the second longitudinal fold line.

14. The construct of claim 13 wherein the first major panel comprises a first edge and the second curved fold line extends from the third longitudinal fold line to the first edge.

15. The construct of claim 14 , wherein the second major panel comprises a second edge, the third curved fold line extends from the fourth longitudinal fold line to the second edge.

16. A construct for heating a food product, the construct comprising:
a plurality of panels forming an interior space of the construct, the plurality of panels comprising a first main panel, a first minor panel foldably connected to the first main panel at a first longitudinal fold line, a second minor panel foldably connected to the first main panel at a second longitudinal fold line, a first major panel foldably connected to the first minor panel at a third longitudinal fold line, and a second major panel foldably connected to the second minor panel at a fourth longitudinal fold line, the first major panel and second major panel being overlapped to form a second main panel;
microwave energy interactive material overlying the sides of the panels facing the interior space;
a first end panel foldably connected to the first main panel, a first partial end panel foldably connected to the first major panel, and a second partial end panel foldably connected to the second major panel, the first partial end panel and the second partial end panel being overlapped to form a second end panel foldably connected to the second main panel;
the first end panel having a slit which is adapted to receive at least a portion of an edge of the second end panel to secure the end panels together in a locked position and close the first end of the construct;
the first end panel being foldably connected to the first main panel at a first arcuate fold line, the first partial end panel being foldably connected to the first major panel at a second arcuate fold line, and the second partial end panel being foldably connected to the second major panel at a third arcuate fold line, the first arcuate fold line extending between the first longitudinal fold line and the sec

Assignees

• Graphic Packaging Int Inc
• Graphic Packaging Int Llc

Inventors

• Fitzwater Kelly R

Classifications

• B65D2581/3477

  Iron or compounds thereof · CPC title

• B65D5/4266

  Folding lines, score lines, crease lines · CPC title

• B65D81/3446

  specially adapted to be heated by microwaves · CPC title

• B65D5/0209

  the tubular body having a curved or partially curved cross-section · CPC title

• Y10S229/903

  Ovenable, i.e. disclosed to be placed in an oven · CPC title