Tray with curved bottom surface

• US 9,078,296 B2
• Filed: 06/07/2012
• Issued: 07/07/2015
• Est. Priority Date: 06/08/2011
• Status: Active Grant

• Current Assignee: Graphic Packaging International Incorporated
• Original Assignee: Graphic Packaging International Incorporated
• Inventors: Fitzwater, Kelly R.
• Primary Examiner(s): Hoang, Tu B
• Assistant Examiner(s): Chou, Jimmy
• Application Number:
  US13/490,546
• Publication Number:
  US 20120312807A1
• Time in Patent Office: 1,125 Days
• Field of Search: 206/557, 229/104, 229/903, 220/62, 220/62.1, 219/730, 219/104, 219/903
• US Class Current: 1/1
• CPC Class Codes: B65D 2581/3406 Pizza or bread
• CPC Class Codes: B65D 2581/3447 Heat attenuators, blocking agents or heat insulators for temperature control
• CPC Class Codes: B65D 5/302 combined with a slot provided in an adjacent side wall
• CPC Class Codes: B65D 81/3453 Rigid containers, e.g. trays, bottles, boxes, cups
• CPC Class Codes: H05B 6/6408 Supports or covers specially adapted for use in microwave heating apparatus
• CPC Class Codes: H05B 6/6494 for cooking

Abstract

A tray for holding a food product includes a plurality of panels extending around an interior of the tray. The plurality of panels includes at least a central panel, at least one side panel foldably connected to the central panel, and at least one end panel foldably connected to the central panel along an arcuate fold line. The central panel forms a curved bottom surface of the tray.

Claims

1. A tray for holding a food product, the tray comprising:

a plurality of panels extending around an interior of the tray, the plurality of panels comprising a longitudinal central panel, a first side panel foldably connected to the central panel at a first longitudinal fold line, a second side panel foldably connected to the central panel at a second longitudinal fold line, a first end panel foldably connected to the central panel along a first arcuate fold line, and a second end panel foldably connected to the central panel along a second arcuate fold line, wherein the central panel forms a curved bottom surface of the tray and the central panel includes a plurality of reinforcement lateral fold lines extending from the first longitudinal fold line to the second longitudinal fold line, the plurality of reinforcement lateral fold lines are equally spaced across the length of the central panel in the same direction with the first and the second longitudinal fold lines to reinforce and strengthen the central panel, and

the second end panel comprises a notch arranged therethrough configured to allow access to one end of a food product.

2. The tray of claim 1, wherein curvature of the curved bottom surface is defined by at least one of the first and second arcuate fold lines.

3. The tray of claim 2, wherein the curved bottom surface includes a portion of the central panel extending into an interior of the tray.

4. The tray of claim 1, wherein the curved bottom surface is arranged to support a food product.

5. The tray of claim 1, further comprising:

at least one extension extending from at least one of the first side panel and the second side panel, the at least one extension is configured to elevate the central panel.

6. The tray of claim 5, wherein the at least one extension is defined by a curved cut-line cut through the central panel.

7. The tray of claim 1, wherein the first and second side panels comprise respective locking flaps configured to engage the first and second end panels to form the tray.

8. The tray of claim 1, wherein curvature of the curved bottom surface is defined by the first and second arcuate fold lines.

9. The tray of claim 1, further comprising:

a plurality of extensions extending from the first and second side panels configured to elevate the central panel.

10. The tray of claim 9, wherein the plurality of extensions are defined by curved cut-lines cut through the central panel.

11. The tray of claim 1, wherein a central axis of the second arcuate fold line is collinear with a central axis of the first arcuate fold line.

12. The tray of claim 1, further comprising:

an interactive element arranged on the central panel.

13. The tray of claim 12, wherein the interactive element is a radio-opaque element configured to interact with a microwave oven.

18. The tray of claim 1, further comprising:

an interactive element arranged on at least one of the central panel, the at least one side panel, and the at least one end panel.

19. The tray of claim 1, wherein the plurality of reinforcement lateral fold lines extends between the first side panel and the second side panel.

20. The tray of claim 1, wherein the plurality of reinforcement lateral fold lines comprise at least three lateral fold lines.

14. The tray of 12, wherein the interactive element comprises a metallic inlay.

15. The tray of 14, wherein the metallic inlay comprises a grid of interlocking metallic traces.

16. The tray of claim 15, wherein the metallic inlay further comprises an oblong central interactive element.

17. The tray of claim 16, wherein the oblong central interactive element is arranged to contact a major surface of a food product.