Gusseted carton

• US 8,109,433 B2
• Filed: 04/14/2009
• Issued: 02/07/2012
• Est. Priority Date: 04/14/2008
• Status: Active Grant

• Current Assignee: Graphic Packaging International Incorporated
• Original Assignee: Graphic Packaging International Incorporated
• Inventors: De Paula, Andrea Coltri, Cooper, Leonard M., Gomes, Jean-Manuel
• Primary Examiner(s): ELKINS, GARY E
• Application Number:
  US12/423,075
• Publication Number:
  US 20090255983A1
• Time in Patent Office: 1,029 Days
• Field of Search: 229/101, 229/101.2, 229/143, 229/144, 229/147, 229/154, 229/186, 229240-244, 206/427
• US Class Current: 229/101
• CPC Class Codes: B65D 2571/00141 glued
• CPC Class Codes: B65D 2571/00561 Lines of weakness B65D2571/00864 takes precedence
• CPC Class Codes: B65D 2571/00574 whereby contents can still be carried after the line has been torn
• CPC Class Codes: B65D 2571/0066 formed from one single sheet
• CPC Class Codes: B65D 2571/00728 the end walls being closed by gluing
• CPC Class Codes: B65D 5/541 the lines of weakness being provided in one or more closure flaps
• CPC Class Codes: B65D 5/5435 and defining after rupture a lid hinged to the side edge of the container body
• CPC Class Codes: B65D 71/34 characterised by weakened lines or other opening devices
• CPC Class Codes: B65D 71/36 having a tubular shape, e.g. tubular wrappers, with end walls

Abstract

A carton is formed from a blank having gusseted corners that in part form an interior carton volume. The interior volume of the carton can be varied by placing the carton in an expanded configuration. The carton can include a bottom receptacle portion that may be liquid-tight.

Claims

1. A carton comprising:

a bottom panel;

a first side panel foldably connected to the bottom panel;

a second side panel foldably connected to the bottom panel;

a top wall foldably connected to the first side panel and the second side panel, a top wall breachable line of disruption extending at least partially across the top wall; and

at least one end wall comprising

a bottom end panel foldably connected to the bottom panel;

a closure flap foldably connected to the bottom end panel, the closure flap at least partially overlapping the top wall;

at least one lower gusset foldably connected to the bottom end panel and one of the first side panel and the second side panel; and

at least one upper gusset foldably connected to the at least one lower gusset and the top wall.

2. The carton of claim 1 wherein the at least one lower gusset comprises a first lower gusset foldably connected to the bottom end panel and the first side panel and a second lower gusset foldably connected to the bottom end panel and the second side panel, and the at least one upper gusset comprises a first upper gusset foldably connected to the first lower gusset and the top wall and a second upper gusset foldably connected to the second lower gusset and the top wall.

3. The carton of claim 2, wherein the top wall breachable line of disruption comprises a curved portion terminating at each end in a generally straight portion.

4. The carton of claim 2, wherein the top wall breachable line of disruption comprises a generally straight tear line.

5. The carton of claim 2, wherein each of the first lower gusset and the second lower gusset comprises a first gusset panel foldably connected to a second gusset panel at a first oblique fold line, wherein the first gusset panel is foldably connected to the bottom end panel at a lateral fold line and the second gusset panel is connected to one of the first side panel and the second side panel at a longitudinal fold line.

6. The carton of claim 5, wherein the first gusset panel has a width in a lateral direction that is substantially equal to a width of the bottom end panel in the lateral direction, and the second gusset panel has a length in a longitudinal direction that is substantially equal to a length of one of the first and second side panels in the longitudinal direction.

7. The carton of claim 5, wherein each of the first upper gusset and the second upper gusset comprises a third gusset panel foldably connected to a fourth gusset panel at a second oblique fold line, wherein the third gusset panel is foldably connected to the second gusset panel at a lateral fold line and the fourth gusset panel is foldably connected to the top wall at the longitudinal fold line.

8. The carton of claim 7, wherein the third gusset panel has a width in the lateral direction that is substantially equal to the width of the second gusset panel in the lateral direction.

9. The carton of claim 2, wherein the top wall comprises a first top panel foldably connected to the first side panel and a second top panel foldably connected to the second side panel, and wherein the top wall breachable line of disruption extends across the second top panel.

10. A carton comprising:

a bottom panel;

a first side panel foldably connected to the bottom panel;

a second side panel foldably connected to the bottom panel;

a top wall foldably connected to the first side panel and the second side panel, a top wall breachable line of disruption extending at least partially across the top wall; and

at least one end wall comprising

a bottom end panel foldably connected to the bottom panel;

at least one lower gusset foldably connected to the bottom end panel and one of the first side panel and the second side panel; and

at least one upper gusset foldably connected to the at least one lower gusset and the top wall;

wherein the at least one lower gusset comprises a first lower gusset foldably connected to the bottom end panel and the first side panel and a second lower gusset foldably connected to the bottom end panel and the second side panel, and the at least one upper gusset comprises a first upper gusset foldably connected to the first lower gusset and the top wall and a second upper gusset foldably connected to the second lower gusset and the top wall; and

wherein the at least one end wall further comprises a closure flap foldably connected to the bottom end panel and an at least one breachable line of disruption in the closure flap.

11. The carton of claim 10, wherein the at least one breachable line of disruption comprises a first oblique tear line and a second oblique tear line forming adhesive flap portions of the closure flap, wherein the adhesive flap portions are adhered to the top wall and at least a portion of the first and second upper gussets are adhered to the closure flap.

12. A blank for forming a carton, the blank comprising:

a bottom panel;

a first side panel foldably connected to the bottom panel;

at least one top panel foldably connected to the first side panel and having a breachable line of disruption extending across the at least one top panel;

a second side panel foldably connected to the bottom panel;

at least one bottom end panel foldably connected to the bottom panel;

a closure flap foldably connected to the at least one bottom end panel, the closure flap being for at least partially overlapping the at least one top panel when the carton is formed from the blank;

at least one lower gusset foldably connected to the at least one bottom end panel and one of the first side panel and the second side panel; and

at least one upper gusset foldably connected to the at least one lower gusset and the at least one top panel.

13. The blank of claim 12 wherein the at least one lower gusset comprises a first lower gusset foldably connected to the bottom end panel and the first side panel and a second lower gusset foldably connected to the bottom end panel and the second side panel,

the at least one top panel comprises a first top panel foldably connected to the first side panel and a second top panel foldably connected to the second side panel, and

the at least one upper gusset comprises a first upper gusset foldably connected to the first lower gusset and the first top panel and a second upper gusset foldably connected to the second lower gusset and the second top panel.

14. The blank of claim 13, wherein each of the first lower gusset and the second lower gusset comprises a first gusset panel foldably connected to a second gusset panel at a first oblique fold line, wherein the first gusset panel is foldably connected to the bottom end panel at a lateral fold line and the second gusset panel is connected to one of the first side panel and the second side panel at a longitudinal fold line.

15. The blank of claim 14, wherein the first gusset panel has a width in a lateral direction that is substantially equal to a width of the bottom end panel in the lateral direction, and the second gusset panel has a length in a longitudinal direction that is substantially equal to a length of one of the first and second side panels in the longitudinal direction.

16. The blank of claim 14, wherein each of the first upper gusset and the second upper gusset comprises a third gusset panel foldably connected to a fourth gusset panel at a second oblique fold line, wherein the third guest panel is foldably connected to the second gusset panel at a lateral fold line and the fourth gusset panel is foldably connected to one of the first top panel and the second top panel at the longitudinal fold line.

17. The blank of claim 16, wherein the third gusset panel has a width in the lateral direction that is substantially equal to the width of the second gusset panel in the lateral direction.

18. The blank of claim 13, wherein the breachable line of disruption extends across the second top panel.

19. A blank for forming a carton, the blank comprising:

a bottom panel;

a first side panel foldably connected to the bottom panel;

at least one top panel foldably connected to the first side panel and having a breachable line of disruption extending across the at least one top panel;

a second side panel foldably connected to the bottom panel;

at least one bottom end panel foldably connected to the bottom panel;

at least one lower gusset foldably connected to the at least one bottom end panel and one of the first side panel and the second side panel;

at least one upper gusset foldably connected to the at least one lower gusset and the at least one top panel; and

a closure flap foldably connected to the bottom end panel and comprising at least one breachable line of disruption in the closure flap;

wherein the at least one lower gusset comprises a first lower gusset foldably connected to the bottom end panel and the first side panel and a second lower gusset foldably connected to the bottom end panel and the second side panel,

the at least one top panel comprises a first top panel foldably connected to the first side panel and a second top panel foldably connected to the second side panel, and

the at least one upper gusset comprises a first upper gusset foldably connected to the first lower gusset and the first top panel and a second upper gusset foldably connected to the second lower gusset and the second top panel.

20. The blank of claim 19, wherein the at least one breachable line of disruption comprises a first oblique tear line and a second oblique tear line forming adhesive flap portions of the closure flap, wherein the adhesive flap portions are adhered to the top wall and at least a portion of the first and second upper gussets are adhered to the closure flap.

21. A method of forming a carton for holding a plurality of containers, the method comprising:

providing a blank comprising a bottom panel, a first side panel foldably connected to the bottom panel, at least one top panel foldably connected to the first side panel and having a breachable line of disruption extending across the at least one top panel, a second side panel foldably connected to the bottom panel, at least one bottom end panel foldably connected to the bottom panel, a closure flap foldably connected to the at least one bottom end panel, at least one lower gusset foldably connected to the at least one bottom end panel and one of the first side panel and the second side panel, and at least one upper gusset foldably connected to the at least one lower gusset and the at least one top panel;

folding the first side panel and the second side panel relative to the bottom panel and the at least one top panel to form a sleeve; and

folding the bottom end panel so that the least one lower gusset is folded to form a liquid-tight bottom receptacle and the at least one first lower upper gusset is folded; and

folding the closure flap to at least partially overlap the at least one top panel.

22. The method of claim 21 wherein the at least one lower gusset comprises a first lower gusset foldably connected to the bottom end panel and the first side panel and a second lower gusset foldably connected to the bottom end panel and the second side panel,

the at least one top panel comprises a first top panel and a second top panel, and

the at least one upper gusset comprises a first upper gusset foldably connected to the first lower gusset and the first top panel and a second upper gusset foldably connected to the second lower gusset and the second top panel,

each of the first lower gusset and the second lower gusset comprises a first gusset panel foldably connected to a second gusset panel at a first oblique fold line, wherein the first gusset panel is foldably connected to the bottom end panel at a lateral fold line and the second gusset panel is connected to one of the first side panel and the second side panel at a longitudinal fold line, and

the folding the bottom end panel upwards comprises folding the first gusset panel to be in face-to-face contact with the second gusset panel.

23. The method of claim 21, wherein the at least one top panel comprises a first top panel foldably connected to the first side panel and a second top panel foldably connected to the second side panel, and wherein the top wall breachable line of disruption extends across the second top panel, the method further comprises opening the carton by tearing the second top panel at the breachable line of disruption and expanding the at least one upper gusset.

24. A method of forming a carton for holding a plurality of containers, the method comprising:

providing a blank comprising a bottom panel, a first side panel foldably connected to the bottom panel, at least one top panel foldably connected to the first side panel and having a breachable line of disruption extending across the at least one top panel, a second side panel foldably connected to the bottom panel, at least one bottom end panel foldably connected to the bottom panel, at least one lower gusset foldably connected to the at least one bottom end panel and one of the first side panel and the second side panel, and at least one upper gusset foldably connected to the at least one lower gusset and the at least one top panel;

folding the first side panel and the second side panel relative to the bottom panel and the at least one top panel to form a sleeve; and

folding the bottom end panel so that the least one lower gusset is folded to form a liquid-tight bottom receptacle and the at least one upper gusset is folded;

wherein the at least one lower gusset comprises a first lower gusset foldably connected to the bottom end panel and the first side panel and a second lower gusset foldably connected to the bottom end panel and the second side panel,

the at least one top panel comprises a first top panel and a second top panel, and

the at least one upper gusset comprises a first upper gusset foldably connected to the first lower gusset and the first top panel and a second upper gusset foldably connected to the second lower gusset and the second top panel,

each of the first lower gusset and the second lower gusset comprises a first gusset panel foldably connected to a second gusset panel at a first oblique fold line, wherein the first gusset panel is foldably connected to the bottom end panel at a lateral fold line and the second gusset panel is connected to one of the first side panel and the second side panel at a longitudinal fold line, and

the folding the bottom end panel upwards comprises folding the first gusset panel to be in face-to-face contact with the second gusset panel;

wherein each of the first upper gusset and the second upper gusset comprises a third gusset panel foldably connected to a fourth gusset panel at a second oblique fold line, wherein the third gusset panel is foldably connected to the second gusset panel at a lateral fold line and the fourth gusset panel is foldably connected to one of the first top panel and the second top panel at the longitudinal fold line,

the at least one end wall further comprises a closure flap foldably connected to the bottom end panel and an at least one breachable line of disruption in the closure flap, and

the folding of the bottom end panel comprises folding the third gusset panel relative to the fourth gusset panel.

25. The method of claim 24 further comprises folding the closure flap relative to the bottom end panel and securing the closure flap to the at least one top panel, the folding the closure flap comprising folding the third gusset panel to be in face-to-face contact with the fourth gusset panel.

26. The method of claim 25, wherein the at least one breachable line of disruption comprises a first oblique tear line and a second oblique tear line forming adhesive flap portions of the closure flap, and the securing the closure flap comprises adhesively connecting the flap portions to the at least one top panel.