Food product tray with expandable side panels

• US 5,948,308 A
• Filed: 10/22/1997
• Issued: 09/07/1999
• Est. Priority Date: 10/22/1997
• Status: Expired due to Fees

• Current Assignee: Rock-Tenn Company (WestRock Company)
• Original Assignee: Rock-Tenn Company (WestRock Company)
• Inventors: Wischusen, Henry III
• Primary Examiner(s): Walberg, Teresa
• Assistant Examiner(s): PWU, JEFFREY C
• Application Number:
  US08/955,642
• Time in Patent Office: 685 Days
• Field of Search: 219/730, 219/732, 219/759, 426/107, 426/241, 426/243, 426/234, 99/DIG. 14, 229/903, 229/195, 229/109, 229/110, 229/123
• US Class Current: 219/730
• CPC Class Codes: B65D 2581/3444 Packages having devices which convert microwave energy into movement
• CPC Class Codes: B65D 2581/3494 Microwave susceptor B65D2581/3487 takes precedence
• CPC Class Codes: B65D 5/0005 of variable capacity
• CPC Class Codes: B65D 5/2033 polygonal having more than four sides, e.g. hexagonal, octogonal
• 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: Y10S 229/903 Ovenable, i.e. disclosed to be placed in an oven

Abstract

An improved food product tray for storing, cooking and serving food products. The food product tray is used to store, cook and serve a food product without assembly or disassembly by the end user. The food product tray includes a floor or base panel and a plurality of upright side panels which enclose the food product. A tab/slot configuration allows the upright side panels to expand outwardly from a first position to a second position as the food product expands during cooking. The base panel may include legs to elevate the base panel, and the base panel may include a plurality of vents to release fluids and gases from the food product. The interior surfaces of the base panel and upright side panels may include microwave absorbent material to enhance cooking of the food product using microwave energy.

Claims

1. A tray formed from a unitary blank for storing, cooking and serving food products, said tray comprising:

a base panel;

a plurality of side panels foldably connected to said base panel and adjacent to one another;

each pair of adjacent side panels being slidably connected by a tab defined on one of said pair extending into a slot on the adjacent one of said pair

said tab having a first tab catch and a second tab catch;

said slot having a tab stop

whereby said side panels are permitted to move from a first position relative to said base panel to a second position spaced angularly outward from said first position, said second position being at an obtuse angle relative to said base panel; and

whereby said side panels are stopped at said first position by engagement of said first tab catch with said tab stop, and whereby said side panels are stopped at said second position by engagement of said second tab catch with said tab stop.

2. The tray of claim 1, wherein said first position is substantially perpendicular to said base panel.

3. The tray of claim 1, wherein said first position is at an acute angle relative to said base panel.

4. The tray of claim 1, wherein said base panel comprises a plurality of vents for releasing fluids and gases.

5. The tray of claim 1, wherein said base panel comprises a plurality of legs disposed along a bottom surface of said base panel for elevating said base panel above a support surface on which said tray is supported.

6. The tray of claim 1, wherein said base panel comprises a corrugated paper layer disposed along a bottom surface of said base panel for elevating said base panel above a support surface on which said tray is supported.

7. The tray of claim 6, wherein said side panels comprise a corrugated paper layer disposed along a bottom surface of said side panels.

8. The tray of claim 1, wherein said floor panel and said side panels are capable becoming hot upon absorption of microwaves.

9. The tray of claim 1, wherein said base panel is generally octagonal-shaped.

10. A tray for supporting a food product to be cooked using microwaves, comprising:

a microwave absorbing floor panel;

a plurality of microwave absorbing side panels foldably connected to said floor panel and adjacent to one another;

said floor and side panels being capable of becoming hot on exposure to microwaves;

each pair of adjacent side panels being slidably connected by a tab defined on one of said pair extending into a slot on the adjacent one of said pair;

said tab having a first tab catch and a second tab catch;

said slot having a tab stop;

whereby said side panels are permitted to move from a first position relative to said base panel to a second position spaced angularly outward from said first position, said second position being at an obtuse angle relative to said base panel; and

whereby said side panels are stopped at said first position by engagement of said first tab catch with said tab stop, and whereby said side panels are stopped at said second position by engagement of said second tab catch with said tab stop.

11. The tray of claim 10, wherein said first position is substantially perpendicular to said floor panel.

12. The tray of claim 10, wherein said first position is at an acute angle relative to said floor panel.

13. A tray formed from a unitary blank for storing, cooking and serving a food product, said tray comprising:

a base panel;

a plurality of side panels foldably connected to said base panel and adjacent to one another;

each pair of adjacent side panels being slidably connected by a tab defined on one of said pair extending into a slot on the adjacent one of said pair;

said tab having a first tab catch and a second tab catch;

said slot having a tab stop;

whereby said side panels are permitted to move from a first position relative to said base panel to a second position spaced angularly outward from said first position, said second position being at an obtuse angle relative to said base panel, said movement of said side panels for allowing lateral expansion of said food product during cooking; and

whereby said side panels are stopped at said first position by engagement of said first tab catch with said tab stop, and whereby said side panels are stopped at said second position by engagement of said second tab catch with said tab stop.

14. The tray of claim 13, wherein said first position is substantially perpendicular to said base panel.

15. The tray of claim 13, wherein said first position is at an acute angle relative to said base panel.