Microwave Heating Apparatus

• US 20100025393A1
• Filed: 07/16/2009
• Published: 02/04/2010
• Est. Priority Date: 07/31/2008
• Status: Abandoned Application

• Current Assignee: Graphic Packaging International Incorporated
• Original Assignee: Graphic Packaging International Incorporated
• Inventors: Talpaert, Arnaud
• Application Number:
  US12/504,110
• Publication Number:
  US 20100025393A1
• Time in Patent Office: Days
• US Class Current: 219/730
• CPC Class Codes: A47J 36/027 Cooking- or baking-vessels specially adapted for use in microwave ovens; Accessories therefor
• CPC Class Codes: B65D 2581/3455 Packages having means for improving the internal circulation of air
• CPC Class Codes: B65D 2581/3472 Aluminium or compounds thereof
• CPC Class Codes: B65D 2581/3477 Iron or compounds thereof
• CPC Class Codes: B65D 2581/3479 Other metallic compounds, e.g. silver, gold, copper, nickel
• CPC Class Codes: B65D 2581/3494 Microwave susceptor B65D2581/3487 takes precedence
• CPC Class Codes: B65D 5/5009 in combination with the end closures or extensions thereof
• CPC Class Codes: B65D 81/3453 Rigid containers, e.g. trays, bottles, boxes, cups
• CPC Class Codes: H05B 6/6494 for cooking
• CPC Class Codes: Y10T 428/12229 Intermediate article [e.g., blank, etc.]

Abstract

A construct comprises a top panel, a bottom panel, and a pair of opposed side panels that define an interior space. The top panel includes a movable portion including a microwave energy interactive element on a side of the movable portion facing the interior space. The construct also includes a cross member adapted to extend at least partially across the movable portion for urging the movable portion toward the interior space.

Claims

1. A construct comprising:

a top panel and a bottom panel in a substantially opposed, facing relationship, the top panel including a movable portion defined at least partially by a pair of opposed cuts in the top panel;

a pair of side panels joined to the top panel and the bottom panel for defining an interior space;

a susceptor overlying at least a portion of the movable portion of the top panel on a side of the movable portion facing the interior space; and

a cross member adapted to

extend at least partially across the movable portion, and

urge the movable portion toward the interior space.

2. The construct of claim 1, wherein the cuts defining the movable portion are U-shaped.

3. The construct of claim 1, wherein each cut of the pair the cuts defining the movable portion has a somewhat squared U-shape.

4. The construct of claim 1, further comprising a pair of top end panels respectively joined to opposite ends of the top panel.

5. The construct of claim 4, further comprising an aperture in each of the top end panels.

6. The construct of claim 5, wherein

the cross member includes a central portion and a pair of locking features at opposed ends of the cross member, and

the locking features are adapted to respectively engage the apertures in the top end panels.

7. The construct of claim 1, wherein the top panel further includes a marginal portion at least partially circumscribing the movable portion.

8. The construct of claim 7, wherein

in a first configuration, the movable portion substantially lies in a plane with the marginal portion of the top panel, and

in a second configuration with the locking features engaging the respective apertures in the top end panels, the movable portion is urged away from the plane of the marginal portion.

9. The construct of claim 1, wherein the cross member is removably joined to the bottom panel.

10. The construct of claim 1, further comprising a pair of bottom end panels respectively joined to opposite ends of the bottom panel.

11. The construct of claim 1, further comprising a tear line in at least one of the adjoined panels, wherein the tear line at least partially defines an access panel.

12. A blank for forming a microwave heating construct, comprising:

a plurality of adjoined panels, each of the adjoined panels having a first dimension extending in a first direction and a second dimension extending in a second direction substantially perpendicular to the first direction, the plurality of adjoined panels including

a first major panel,

a first minor panel joined to the first major panel along a fold line extending in the first direction,

a second major panel joined to the first minor panel along a fold line extending in the first direction, the second major panel including a movable portion defined at least partially by a pair of opposed cuts, and

a cross member panel separably joined to at least one of the adjoined panels; and

a susceptor overlying the movable portion of the second major panel.

13. The blank of claim 12, wherein the cuts defining the movable portion are U-shaped.

14. The blank of claim 12, the adjoined panels further including

a first pair of opposed end panels joined to the first major panel along respective arcuate fold lines extending in the second direction, and

a second pair of opposed end panels joined to the second major panel along respective fold lines extending in the second direction.

15. The blank of claim 12, further comprising a pair of tear lines in the first minor panel extending substantially between the first major panel and the second major panel.

16. The blank of claim 12, the adjoined panels further including a second minor panel joined to the second major panel along a fold line extending in the first direction.

17. The blank of claim 12, the adjoined panels further including an attachment panel joined to the second minor panel along a fold line extending in the first direction, wherein the cross member panel is separably joined to the attachment panel along a tear line.

18. A method of heating, browning, and/or crisping a food item in a microwave oven, comprising:

providing a construct including

a top panel and a bottom panel in a substantially opposed, facing relationship, the top panel including a movable portion, a pair of side panels joined to the top panel and the bottom panel for defining an interior space,

a susceptor overlying at least a portion of the movable portion of the top panel on a side of the movable portion facing the interior space, and

a cross member;

inserting a food item in the interior space, the food item having at least one surface intended to be browned and/or crisped, the surface of the food item being adjacent to the susceptor; and

configuring the cross member to extend at least partially across the movable portion, thereby engaging the movable portion and urging the movable portion toward the interior space.

19. The method of claim 18, wherein the movable portion is defined at least partially by a pair of opposed cuts in the top panel.

20. The method of claim 18, wherein the cuts defining the movable portion are U-shaped.

21. The method of claim 18, further comprising exposing the food item within the interior space to microwave energy, whereby the susceptor overlying the movable portion converts at least a portion of the microwave energy into thermal energy to brown and/or crisp the surface of the food item.

22. The method of claim 18, wherein

the construct further includes a pair of top end panels respectively joined to opposite ends of the top panel, and

configuring the cross member to extend at least partially across the movable portion comprises engaging the top end panels.

23. The method of claim 22, wherein

the cross member includes a pair of locking features at opposite ends of the cross member,

each top end panel includes an aperture, and

configuring the cross member to extend at least partially across the movable portion comprises mating the locking features with the apertures.

24. The method of claim 23, wherein the cross member includes a central portion disposed between the locking features, and configuring the cross member to extend at least partially across the movable portion comprises engaging the movable portion with the central portion of the cross member.

25. The method of claim 18, wherein

the construct includes an access panel defined by a plurality of tear lines, and

the method further comprises opening the access panel along the plurality of tear lines and removing the food item from the interior space.