Substantially round tray

• US 8,534,536 B2
• Filed: 10/20/2011
• Issued: 09/17/2013
• Est. Priority Date: 10/21/2010
• Status: Active Grant

• Current Assignee: Graphic Packaging International Incorporated
• Original Assignee: Graphic Packaging International Incorporated
• Inventors: Renken, Debora, Schneider, Bernd A., Mueller, Duane
• Primary Examiner(s): Reynolds, Steven A.
• Assistant Examiner(s): Chu, King M
• Application Number:
  US13/277,924
• Publication Number:
  US 20120097573A1
• Time in Patent Office: 698 Days
• Field of Search: 229/100, 229/109, 229/120, 229/903
• US Class Current: 229/109
• CPC Class Codes: B65D 2585/366 Pizza
• CPC Class Codes: B65D 5/2023 the folded-up portions being folded along non-rectilinear fold-lines
• CPC Class Codes: B65D 81/3453 Rigid containers, e.g. trays, bottles, boxes, cups
• CPC Class Codes: B65D 85/36 for bakery products, e.g. biscuits

Abstract

More than four sidewalls extend upwardly and outwardly from a periphery of a central base panel of a tray. Each sidewall includes opposite first and second marginal portions extending outwardly from the base panel. For each adjacent pair of sidewalls of the plurality of sidewalls, the first marginal portion of a first sidewall of the adjacent pair of sidewalls is in an overlapping relationship with, and is fastened to, the second marginal portion of a second sidewall of the adjacent pair of sidewalls.

Claims

1. A tray, comprising:

a base panel having a periphery;

a plurality of sidewalls extending upwardly and outwardly from the periphery of the base panel, and extending around an interior of the tray, wherein

the plurality of sidewalls comprise more than four sidewalls that are respectively adjacent to one another,

each sidewall of the plurality of sidewalls includes opposite first and second marginal portions extending outwardly from the base panel,

for each adjacent pair of sidewalls of the plurality of sidewalls, the first marginal portion of a first sidewall of the adjacent pair of sidewalls is in an overlapping relationship with, and is fastened to, the second marginal portion of a second sidewall of the adjacent pair of sidewalls, and

the fastened-together first and second sidewalls extend obliquely to the base panel so that an opening to the interior of the tray is larger than the base panel;

an outwardly bulging first convex fold line connecting an outwardly bulging convex inner edge of the first sidewall of a first of the adjacent pairs of sidewalls to the periphery of the base panel, the outwardly bulging first convex fold line extending from the first marginal portion of the first sidewall of the first adjacent pair of sidewalls to the second marginal portion of the first sidewall of the first adjacent pair of sidewalls; and

an outwardly bulging second convex fold line connecting an outwardly bulging convex inner edge of the second sidewall of the first adjacent pair of sidewalls to the periphery of the base panel, the outwardly bulging second convex fold line extending from the first marginal portion of the second sidewall of the first adjacent pair of sidewalls to the second marginal portion of the second sidewall of the first adjacent pair of sidewalls.

2. The tray according to claim 1, wherein the tray is substantially round.

3. The tray according to claim 1, wherein each of the sidewalls is formed from a respective flap.

4. The tray according to claim 1, further comprising microwave interactive material on at least one of the base panel and the plurality of sidewalls.

5. The tray according to claim 1, wherein:

the periphery of the base panel comprises a plurality of peripheral edges;

the plurality of peripheral edges comprises more than four peripheral edges that are each convex; and

the sidewalls are respectively connected to the convex peripheral edges.

6. The tray according to claim 5, wherein:

the plurality of peripheral edges of the base panel comprises eight outwardly bulging convex peripheral edges; and

the plurality of sidewalls comprises eight sidewalls.

7. The tray according to claim 1, wherein:

the first and second sidewalls are configured differently from one another, comprising the first sidewall being smaller than the second sidewall; and

the second marginal portion of the second sidewall is positioned between the interior and the first marginal portion of the first sidewall.

8. The tray according to claim 7, wherein:

the first sidewall is substantially rectangular; and

the second sidewall is substantially inwardly tapered.

9. The tray according to claim 7, wherein the second sidewall has opposite outer corners that each define acute angles.

10. The tray according to claim 7, wherein the second sidewall has opposite outer corners, and an outer corner of the outer corners is chamfered.

32. The tray according to claim 1, comprising:

an outwardly bulging third convex fold line connecting an outwardly bulging convex inner edge of the first sidewall of a second of the adjacent pairs of sidewalls to the periphery of the base panel, the outwardly bulging third convex fold line extending from the first marginal portion of the first sidewall of the second adjacent pair of sidewalls to the second marginal portion of the first sidewall of the second adjacent pair of sidewalls; and

an outwardly bulging fourth convex fold line connecting an outwardly bulging convex inner edge of the second sidewall of the second adjacent pair of sidewalls to the periphery of the base panel, the outwardly bulging fourth convex fold line extending from the first marginal portion of the second sidewall of the second adjacent pair of sidewalls to the second marginal portion of the second sidewall of the second adjacent pair of sidewalls.

33. The tray according to claim 32, comprising:

an outwardly bulging fifth convex fold line connecting an outwardly bulging convex inner edge of the first sidewall of a third of the adjacent pairs of sidewalls to the periphery of the base panel, and the outwardly bulging fifth convex fold line extending from the first marginal portion of the first sidewall of the third adjacent pair of sidewalls to the second marginal portion of the first sidewall of the third adjacent pair of sidewalls;

an outwardly bulging sixth convex fold line connecting an outwardly bulging convex inner edge of the second sidewall of the third adjacent pair of sidewalls to the periphery of the base panel, and the outwardly bulging sixth convex fold line extending from the first marginal portion of the second sidewall of the third adjacent pair of sidewalls to the second marginal portion of the second sidewall of the third adjacent pair of sidewalls;

an outwardly bulging seventh convex fold line connecting an outwardly bulging convex inner edge of the first sidewall of a fourth of the adjacent pairs of sidewalls to the periphery of the base panel, and the outwardly bulging seventh convex fold line extending from the first marginal portion of the first sidewall of the fourth adjacent pair of sidewalls to the second marginal portion of the first sidewall of the fourth adjacent pair of sidewalls; and

an outwardly bulging eighth convex fold line connecting an outwardly bulging convex inner edge of the second sidewall of the fourth adjacent pair of sidewalls to the periphery of the base panel, and the outwardly bulging eighth convex fold line extending from the first marginal portion of the second sidewall of the fourth adjacent pair of sidewalls to the second marginal portion of the second sidewall of the fourth adjacent pair of sidewalls.

37. The tray according to claim 1, wherein the first marginal portion of the first sidewall being fastened to the second marginal portion of the second sidewall comprises adhesive material connecting the first marginal portion of the first sidewall to the second marginal portion of the second sidewall.

11. A blank for being erected into a tray, the blank comprising:

a central panel having a periphery;

a plurality of flaps extending outwardly from the periphery of the central panel, wherein

the plurality of flaps comprise more than four flaps,

each flap of the plurality of flaps includes opposite first and second marginal portions extending outwardly from the central panel,

the flaps comprise first flaps and second flaps that are configured differently from one another,

the flaps circumferentially alternate between the first flaps and the second flaps so that each adjacent pair of the flaps includes both one of the first flaps and one of the second flaps, and

in each of the adjacent pairs of flaps, the first marginal portion of the first flap of the adjacent pair of flaps is configured for being in an overlapping relationship with the second marginal portion of the second flap of the adjacent pair of flaps when the blank is erected into the tray; and

an outwardly bulging first convex fold line connecting an outwardly bulging convex inner edge of the first flap of a first of the adjacent pairs of flaps to the periphery of the central panel, the outwardly bulging first convex fold line extending from the first marginal portion of the first flap of the first adjacent pair of flaps to the second marginal portion of the first flap of the first adjacent pair of flaps; and

an outwardly bulging second convex fold line connecting an outwardly bulging convex inner edge of the second flap of the first adjacent pair of flaps to the periphery of the central panel, the outwardly bulging second convex fold line extending from the first marginal portion of the second flap of the first adjacent pair of flaps to the second marginal portion of the second flap of the first adjacent pair of flaps.

12. The blank according to claim 11, wherein:

each of the first flaps is substantially rectangular; and

each of the second flaps is substantially inwardly tapered.

13. The blank according to claim 11, wherein each of the second flaps has opposite outer corners that each define acute angles.

14. The blank according to claim 11, wherein each of the second flaps has opposite outer corners, and an outer corner of the outer corners is chamfered.

15. The blank according to claim 11, wherein:

the periphery of the central panel comprises a plurality of peripheral edges;

the plurality of peripheral edges comprises more than four peripheral edges that are each convex; and

the sidewalls are respectively connected to the convex peripheral edges.

16. The blank according to claim 15, wherein:

the plurality of peripheral edges of the central panel comprises eight outwardly bulging convex peripheral edges; and

the plurality of flaps comprises eight flaps.

26. The blank according to claim 11, wherein a flap of the first flaps is smaller than a flap of the second flaps.

27. The blank according to claim 11, wherein each flap of the first flaps is smaller than each flap of the second flaps.

28. The blank according to claim 16, wherein:

a flap of the first flaps is substantially rectangular; and

a flap of the second flaps is substantially inwardly tapered.

29. The blank according to claim 16, wherein:

each flap of the first flaps is substantially rectangular; and

each flap of the second flaps is substantially inwardly tapered.

30. The blank according to claim 16, wherein a flap of the second flaps has opposite outer corners that each define acute angles.

31. The blank according to claim 16, wherein a flap of the second flaps has opposite outer corners, and an outer corner of the outer corners is chamfered.

34. The blank according to claim 11, comprising:

an outwardly bulging third convex fold line connecting an outwardly bulging convex inner edge of the first flap of a second of the adjacent pairs of flaps to the periphery of the central panel, the outwardly bulging third convex fold line extending from the first marginal portion of the first flap of the second adjacent pair of flaps to the second marginal portion of the first flap of the second adjacent pair of flaps; and

an outwardly bulging fourth convex fold line connecting an outwardly bulging convex inner edge of the second flap of the second adjacent pair of flaps to the periphery of the central panel, the outwardly bulging fourth convex fold line extending from the first marginal portion of the second flap of the second adjacent pair of flaps to the second marginal portion of the second flap of the second adjacent pair of flaps.

35. The blank according to claim 34, comprising:

an outwardly bulging fifth convex fold line connecting an outwardly bulging convex inner edge of the first flap of a third of the adjacent pairs of flaps to the periphery of the central panel, and the outwardly bulging fifth convex fold line extending from the first marginal portion of the first flap of the third adjacent pair of flaps to the second marginal portion of the first flap of the third adjacent pair of flaps;

an outwardly bulging sixth convex fold line connecting an outwardly bulging convex inner edge of the second flap of the third adjacent pair of flaps to the periphery of the central panel, and the outwardly bulging sixth convex fold line extending from the first marginal portion of the second flap of the third adjacent pair of flaps to the second marginal portion of the second flap of the third adjacent pair of flaps;

an outwardly bulging seventh convex fold line connecting an outwardly bulging convex inner edge of the first flap of a fourth of the adjacent pairs of flaps to the periphery of the central panel, and the outwardly bulging seventh convex fold line extending from the first marginal portion of the first flap of the fourth adjacent pair of flaps to the second marginal portion of the first flap of the fourth adjacent pair of flaps; and

an outwardly bulging eighth convex fold line connecting an outwardly bulging convex inner edge of the second flap of the fourth adjacent pair of flaps to the periphery of the central panel, and the outwardly bulging eighth convex fold line extending from the first marginal portion of the second flap of the fourth adjacent pair of flaps to the second marginal portion of the second flap of the fourth adjacent pair of flaps.

17. A blank for being erected into a carton, the blank comprising:

a central panel having a periphery;

a plurality of flaps extending at least partially around the periphery of the central panel, the plurality of flaps extending outwardly from the periphery of the central panel, the plurality of flaps comprising more than four flaps, and each flap of the plurality of flaps comprises opposite first and second outwardly extending edges extending outwardly from the central panel; and

a plurality of fold lines respectively connecting the flaps to the periphery of the central panel, the plurality of fold lines comprising

an outwardly bulging first convex fold line connecting an outwardly bulging convex inner edge of a first flap of the plurality of flaps to the periphery of the central panel, the outwardly bulging first convex fold line extending substantially from the first outwardly extending edge of the first flap substantially to the second outwardly extending edge of the first flap,

an outwardly bulging second convex fold line connecting an outwardly bulging convex inner edge of a second flap of the plurality of flaps to the periphery of the central panel, the outwardly bulging second convex fold line extending substantially from the first outwardly extending edge of the second flap substantially to the second outwardly extending edge of the second flap,

an outwardly bulging third convex fold line connecting an outwardly bulging convex inner edge of a third flap of the plurality of flaps to the periphery of the central panel, the outwardly bulging third convex fold line extending substantially from the first outwardly extending edge of the third flap substantially to the second outwardly extending edge of the third flap, and

an outwardly bulging fourth convex fold line connecting an outwardly bulging convex inner edge of a fourth flap of the plurality of flaps to the periphery of the central panel, the outwardly bulging fourth convex fold line extending substantially from the first outwardly extending edge of the fourth flap substantially to the second outwardly extending edge of the fourth flap.

18. The blank according to claim 17, wherein the blank is substantially octagonal.

19. The blank according to claim 17, comprising a plurality of outwardly extending slits, and the slits being respectively positioned between adjacent flaps of the plurality of flaps.

20. The blank according to claim 17, wherein the plurality of fold lines together form a substantially annular hinge line.

21. The blank according to claim 17, wherein:

the plurality of fold lines together form a substantially annular hinge line comprising a series of segments that are spaced apart from one another and generally arranged end-to-end with respect to one another; and

each segment includes slits and a roundedly curved score positioned between the slits.

22. The blank according to claim 21, wherein for each segment, the slits of the segment are spaced apart from one another and extend obliquely with respect to one another.

23. The blank according to claim 17, wherein:

the periphery of the central panel comprises a plurality of convex peripheral edges;

the plurality of convex peripheral edges of the central panel comprises more than four convex peripheral edges; and

the flaps are respectively foldably connected to the convex peripheral edges of the central panel.

24. The blank according to claim 23, wherein:

the plurality of convex peripheral edges of the central panel comprises eight outwardly bulging convex peripheral edges; and

the plurality of flaps comprises eight flaps.

25. The blank according to claim 17, wherein the second flap is configured differently from the first flap.

36. The blank according to claim 17, wherein the plurality of fold lines comprises:

an outwardly bulging fifth convex fold line connecting an outwardly bulging convex inner edge of a fifth flap of the plurality of flaps to the periphery of the central panel, and the outwardly bulging fifth convex fold line extending substantially from the first outwardly extending edge of the fifth flap substantially to the second outwardly extending edge of the fifth flap;

an outwardly bulging sixth convex fold line connecting an outwardly bulging convex inner edge of a sixth flap of the plurality of flaps to the periphery of the central panel, and the outwardly bulging sixth convex fold line extending substantially from the first outwardly extending edge of the sixth flap substantially to the second outwardly extending edge of the sixth flap;

an outwardly bulging seventh convex fold line connecting an outwardly bulging convex inner edge of a seventh flap of the plurality of flaps to the periphery of the central panel, and the outwardly bulging seventh convex fold line extending substantially from the first outwardly extending edge of the seventh flap substantially to the second outwardly extending edge of the seventh flap; and

an outwardly bulging eighth convex fold line connecting an outwardly bulging convex inner edge of an eighth flap of the plurality of flaps to the periphery of the central panel, and the outwardly bulging eighth convex fold line extending substantially from the first outwardly extending edge of the eighth flap substantially to the second outwardly extending edge of the eighth flap.