One-piece foldable corrugated cooler with improved locking system

1. A box comprising a folded sheet of material, the folded sheet comprising:

(a) a storage portion defining an area for receiving items, the storage portion comprising:

(i) a bottom panel,

(ii) two side panels,

(iii) two end panels, and

(iv) four corner panels;

(b) two handle panels forming a lid and a handle; and

(c) a locking panel;

(d) wherein the locking panel is adapted to secure the lid in a closed orientation covering the area of the storage portion; and

(e) wherein the locking panel is integral with a said corner panel and a said handle panel,

(i) with a fold line extending between and dividing the locking panel and the said corner panel, and

(ii) with a fold line extending between and dividing the locking panel and the said handle panel.

2. The box of claim 1 , wherein the handle includes a locking tab, and the locking panel includes a slot therethrough adapted to receive and retain the locking tab.

3. The box of claim 2 , wherein the folded sheet of material includes a water-resistant coating applied to a surface thereof corresponding to an interior surface of the area of the storage portion for use of the box as a cooler.

4. The box of claim 3 , wherein a leak point of the box is defined at an uppermost point of a fold line, about which fold line the sheet is folded to define the locking panel, and wherein the locking panel is two-ply.

5. The box of claim 1 , wherein no fold line extends between and divides the locking panel and either of the two end panels.

6. The box of claim 1 , wherein the folded sheet of material comprises a corrugated material.

7. The box of claim 6 , wherein the folded sheet of material comprises cardboard.

8. A box comprising a folded sheet of material, the folded sheet comprising:

(a) a bottom panel, side panels, end panels, and corner panels configured to collectively form a storage area;

(b) a top panel comprising a lid segment and a handle segment, the handle segment comprising a locking tab; and

(c) a locking panel adapted to receive the locking tab of the handle segment for locking engagement of the handle segment;

(d) wherein a fold line extends between and divides the locking panel and one of the corner panels.

9. The box of claim 8 , wherein no fold line extends between and divides the locking panel and any of the end panels.

10. The box of claim 8 , further comprising a second locking panel, and wherein the handle segment further comprises a second locking tab, the second locking panel adapted to receive the second locking tab of the handle segment with a fold line extending between and dividing the second locking panel and another one of the corner panels.

11. The box of claim 8 , wherein a fold line extends between and divides the locking panel and the top panel.

12. The box of claim 8 , further comprising a second top panel comprising a second lid segment and a second handle segment, the lid segments collectively defining a lid covering the storage area when in a closed orientation.

13. The box of claim 12 , wherein the second handle segment comprises a second locking tab, wherein the locking tabs of the handle segments collectively define a two-ply locking tab, and wherein a slot in the locking panel is adapted to receive and retain the two-ply locking tab.

14. The box of claim 8 , wherein the folded sheet of material includes a water-resistant coating applied to a surface thereof corresponding to an interior surface of the storage area for use of the box as a cooler; and wherein a leak point of the storage area is defined at an uppermost point of a fold line, about which fold line the sheet is folded to define the locking panel.

15. A box comprising a folded sheet of material, the folded sheet comprising:

(a) a bottom panel, side panels, end panels, and corner panels configured to collectively form a storage area;

(b) two top panels configured to collectively form a lid, each of the two top panels including locking tabs located at opposite ends thereof, with the locking tabs of the top panels at each of the opposite ends collectively defining a respective two-ply locking tab thereat when the lid is in a closed orientation covering the storage area; and

(c) two locking panels each comprising a slot adapted to receive and retain one of the two-ply locking tabs so as to secure the lid in the closed orientation; and

(d) wherein each locking panel is integral with a different one of the four corner panels and is integral with one of the two top panels,

(i) with a fold line extending between and dividing the locking panel and the said corner panel with which the locking panel is integral, and

(ii) with a fold line extending between and dividing the locking panel and the said top panel with which the locking panel is integral.

16. The box of claim 15 , wherein no fold line extends between and divides any locking panel and any end panel.

17. The box of claim 15 , wherein the locking panels are integral with the same top panel.

18. The box of claim 17 , wherein each locking panel is two-ply.

19. The box of claim 15 , wherein the folded sheet of material includes a water-resistant coating applied to a surface thereof corresponding to an interior surface of the storage area for use of the box as a cooler.

20. The box of claim 19 , wherein a leak point of the storage area is defined at an uppermost point of a fold line, about which fold line the sheet is folded to define one of the locking panels.