Granted Patent B2

US 12,595,091 · App. 18/806,639 · Granted Apr 7, 2026

Inventors: Greg Sollie (Sharpsburg, GA); Shifeng Chen (Newport News, VA); Randy Ball (Peachtree City, GA)

Assignee: Pratt Corrugated Holdings, Inc.

B65D5/0227B65D5/4266B65D5/54B65D2543/00425

Abstract

Claims (56)

1 . A method of collapsing a collapsible box, the method comprising:

providing the collapsible box, the collapsible box comprising:

a plurality of side panels including a first side panel and a second side panel, each of the plurality of side panels defining a side panel top edge;

a box bottom; and

a box top comprising a plurality of top panels including a first top panel extending from the side panel top edge of the first side panel and a second top panel extending from the side panel top edge of the second side panel, the second top panel comprising an overlapping portion;

folding the first side panel towards the second side panel to confront the first side panel with the second side panel; and

folding the overlapping portion of the second top panel over a top panel top edge of the first top panel.

2 . The method of claim 1 , wherein:

the second top panel further comprises a connecting portion hingedly coupled to the side panel top edge of the second side panel by a top panel fold line;

the overlapping portion is hingedly coupled to the connecting portion opposite the side panel top edge by a connecting-over fold line; and

folding the overlapping portion of the second top panel over the top panel top edge of the first top panel comprises folding the overlapping portion relative to the connecting portion at the connecting-over fold line.

3 . The method of claim 2 , wherein the connecting-over fold line is a double fold line comprising a pair of parallel fold lines.

4 . The method of claim 1 , wherein:

the plurality of side panels further includes a third side panel and a fourth side panel; and

the plurality of top panels further includes a third top panel extending from the side panel top edge of the third side panel and a fourth top panel extending from the side panel top edge of the fourth side panel.

5 . The method of claim 4 , wherein:

a width of the overlapping portion is greater than a width of the first side panel;

the method further comprises folding the fourth side panel towards the third side panel to confront the fourth side panel with the third side panel; and

folding the overlapping portion of the second top panel over the top panel top edge of the first top panel comprises simultaneously folding the overlapping portion over the top panel top edge of the fourth top panel.

6 . The method of claim 5 , wherein the overlapping portion comprises an adhesive configured to adhere to the fourth top panel in an assembled and closed configuration of the collapsible box.

7 . The method of claim 6 , wherein:

the overlapping portion defines a proximal portion coupled to the connecting portion and a distal end portion opposite the connecting portion;

the adhesive is applied to the distal end portion of the overlapping portion; and

the distal end portion is joined to the proximal portion by a tear strip.

8 . The method of claim 7 , wherein:

the overlapping portion comprises a primary sealing flap and a secondary sealing flap;

each of the adhesive and the tear strip are arranged on the primary sealing flap; and

the secondary sealing flap comprises a secondary adhesive configured to adhere to the fourth top panel in a secondary assembled and closed configuration of the collapsible box.

9 . The method of claim 4 , further comprising folding the fourth side panel towards the third side panel to confront the fourth side panel with the third side panel, such that the first side panel is substantially coplanar with the fourth side panel, and such that the second side panel is substantially coplanar with the third side panel.

10 . The method of claim 1 , wherein:

the box bottom comprises a plurality of bottom panels including:

a first bottom panel hingedly extending from a side panel bottom edge of the first side panel; and

a second bottom panel hingedly extending from a side panel bottom edge of the second side panel;

the method further comprises folding the first bottom panel relative to the first side panel and folding the second bottom panel relative to the second side panel to dispose the first bottom panel and the second bottom panel between the first side panel and the second side panel.

11 . The method of claim 10 , wherein:

the plurality of side panels further includes a third side panel and a fourth side panel;

the plurality of bottom panels further includes:

a third bottom panel hingedly extending from a side panel bottom edge of the third side panel; and

a fourth bottom panel hingedly extending from a side panel bottom edge of the fourth side panel;

the method further comprises folding the fourth bottom panel relative to the fourth side panel and folding the third bottom panel relative to the third side panel to dispose the fourth bottom panel and the third bottom panel between the fourth side panel and the third side panel.

12 . The method of claim 11 , wherein:

a first glue area extends from and is hingedly connected to one of the first bottom panel or the second bottom panel at a first collapsing fold line and is adhered to the other one of the first bottom panel or the second bottom panel;

a second glue area extends from and is hingedly connected to one of the third bottom panel or the fourth bottom panel at a second collapsing fold line and is adhered to the other one of the third bottom panel or the fourth bottom panel;

folding the first bottom panel relative to the first side panel and folding the second bottom panel relative to the second side panel further comprises folding the first glue area at the first collapsing fold line; and

folding the fourth bottom panel relative to the fourth side panel and folding the third bottom panel relative to the third side panel further comprises folding the second glue area at the second collapsing fold line.

13 . The method of claim 12 , wherein:

the first glue area extends from and is hingedly connected to the one of the first bottom panel or the second bottom panel at a first collapsing fold line; and

the second glue area extends from and is hingedly connected to the one of the third bottom panel or the fourth bottom panel at a second collapsing fold line.

14 . The method of claim 1 , wherein the collapsible box further comprises:

a supporting superjacent panel pivotably connected to the second top panel at a first fold line; and

a supporting subjacent panel pivotably connected to the first side panel at a second fold line and pivotably connected to the supporting superjacent panel at a third fold line.

15 . The method of claim 14 , wherein the method further comprises:

folding the supporting superjacent panel relative to the second top panel at the first fold line;

folding the supporting subjacent panel relative to the first side panel at the second fold line; and

folding the supporting subjacent panel relative to the supporting superjacent panel at the third fold line.

16 . The method of claim 1 , wherein the collapsible box defines a rectangular outline in a folded-down configuration.

Continuity (5)

References Cited (225)