Granted Patent B2

US 12,365,509 · App. 18/967,391 · Granted Jul 22, 2025

Inventors: Robert F. Humberstone (Port Charlotte, FL); Hector Nava (Dallas, TX)

Assignee: Pratt Corrugated Holdings, Inc.

B65D5/6685B31B50/734B65D5/18B65D85/36B31B2120/102B31B2120/302B31B2120/70B65D2585/366

Abstract

Claims (30)

1. A blank comprising:

a first main panel defining a top outer surface of a box;

a locking tab extending from and separable from the first main panel, the locking tab comprising a neck and an ear, the ear extending from the neck in a lateral direction of the locking tab;

a second main panel connected to the first main panel and facing the first main panel; and

an end panel extending from the second main panel, the end panel defining a locking opening, a lateral width of the locking tab at the ear being greater than a lateral width of the locking opening, a lateral width of the locking tab at the neck being less than the lateral width of the locking opening, the locking opening sized to receive and lockably engage at least a portion of the locking tab upon assembly of the blank into the box;

wherein the end panel comprises a second end panel, an inside end panel, and a connecting panel joining the inside end panel to the second end panel, an intersection between the connecting panel and each of the inside end panel and the second end panel defining a bend line; and

wherein the locking opening is defined by at least the connecting panel and the inside end panel.

2. The blank of claim 1 , wherein the locking opening comprises a rectangular shape.

3. The blank of claim 2 , wherein the locking opening comprises a first end, a second end distal from the first end, a third end and a fourth end, both the third end and the fourth end extending between the first end and the second end, wherein the first end is defined by the inside end panel.

4. The blank of claim 3 , wherein the second end of the locking opening is defined by the second end panel.

5. The blank of claim 1 , wherein the locking tab is joined to the first main panel with a perforated connection.

6. The blank of claim 1 , the locking tab comprising a first tab subpanel and a second tab subpanel, the first tab subpanel extending from the first main panel and the second tab subpanel extending from the first tab subpanel and joined to the first tab subpanel, the second tab subpanel comprising the neck and the ear.

7. The blank of claim 6 , wherein a distal end of the second tab subpanel of the locking tab is narrower than a maximum lateral width of the second tab subpanel.

8. The blank of claim 6 , wherein the second tab subpanel of the locking tab defines a taper.

9. The blank of claim 8 , wherein the taper of the second tab subpanel of the locking tab defines a taper angle.

10. The blank of claim 1 , wherein the blank is formed integrally from a single piece of material.

11. The blank of claim 1 , wherein each of the first main panel and the second main panel defines a first end, a second end distal from the first end, a third end intersecting each of the first end and the second end, and a fourth end distal from the third end, the locking tab extending from the first end of the first main panel, a second end of the second main panel extending from the second end of the first main panel; and the second end panel extending from the first end of the second main panel.

12. The blank of claim 1 , wherein the locking tab and the locking opening are positioned on opposite ends of the blank, the locking tab and the locking opening being aligned with each other.

13. A box comprising:

a box top comprising a first panel and a locking tab separably joined to the first panel, the locking tab comprising a neck and an ear, the ear extending from the neck in a lateral direction of the locking tab; and

a box bottom comprising a second panel, the second panel defining a locking opening, a lateral width of the locking tab at the ear being greater than a lateral width of the locking opening, a lateral width of the locking tab at the neck being less than the lateral width of the locking opening, the locking opening sized to receive and capture the locking tab, the locking tab configured to engage an edge of the locking opening and thereby configured to prevent movement of the locking tab with respect to the locking opening in an opening direction of the locking tab;

wherein the second panel comprises a second end panel, a connecting panel, and an inside end panel; and

wherein the locking opening is defined by at least the connecting panel and the inside end panel.

14. The box of claim 13 , wherein the locking opening comprises a first end, a second end distal from the first end, a third end and a fourth end, both the third end and the fourth end extending between the first end and the second end, wherein the first end is defined by the inside end panel.

15. The box of claim 14 , wherein the second end of the locking opening is defined by the second end panel.

16. The box of claim 13 , wherein the locking tab is joined to the first main panel with a perforated connection.

17. The box of claim 13 , the locking tab comprising a first tab subpanel and a second tab subpanel, the first tab subpanel extending from the first main panel and the second tab subpanel extending from the first tab subpanel and joined to the first tab subpanel, the second tab subpanel comprising the neck and the ear.

18. The box of claim 17 , wherein a distal end of the second tab subpanel of the locking tab is narrower than a maximum lateral width of the second tab subpanel.

19. The box of claim 17 , wherein the second tab subpanel of the locking tab is angled with respect to the first panel of the box in an assembled and closed position of the box.

20. The box of claim 13 , wherein the box top and the box bottom are formed from a single blank of material.

Continuity (3)

References Cited (253)

Cited By (2)

US 1,136,913 US 12,441,506