Gusseted carton

• US 8,752,755 B2
• Filed: 12/22/2011
• Issued: 06/17/2014
• 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:
  US13/334,927
• Publication Number:
  US 20120091192A1
• Time in Patent Office: 908 Days
• Field of Search: 229/101, 229/101.2, 229/147, 229/154, 229/186, 229240-244, 229141-144, 229/170, 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 for holding a plurality of containers, the carton comprising:

a plurality of panels that extends at least partially around an interior of the carton, the plurality of panels 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 first top panel foldably connected to the first side panel, and a second top panel foldably connected to the second side panel;

at least one end wall at least partially forming a closed end of the carton, the at least one end wall comprising at least a top end flap foldably connected to the second top panel along a longitudinal fold line, a plurality of gussets, and a bottom end panel; and

a tear line, at least a portion of the tear line extending at least partially across the second top panel;

wherein the plurality of gussets comprises a first lower gusset, a second lower gusset, a first upper gusset, and a second upper gusset, at least a portion of the first upper gusset being foldably connected to the first top panel along the longitudinal fold line and being at least partially in face-to-face contact with an interior surface of the top end flap;

the first upper gusset comprises a first upper gusset panel foldably connected to a second upper gusset panel, and the second upper gusset comprises a third upper gusset panel foldably connected to a fourth upper gusset panel;

the bottom end panel is foldably connected to the bottom panel along the longitudinal fold line; and

the second top panel at least partially overlaps the first top panel, the first upper gusset panel at least partially overlaps the second upper gusset panel, the third upper gusset panel at least partially overlaps the fourth upper gusset panel, and the second upper gusset panel and the fourth upper gusset panel at least partially overlap the bottom end panel.

2. The carton of claim 1, wherein the first upper gusset panel is foldably connected to the first top panel along the longitudinal fold line and is at least partially in face-to-face contact with the interior surface of the top end flap, and the third upper gusset panel is foldably connected to the second top panel along the longitudinal fold line.

3. The carton of claim 2, wherein:

the first lower gusset comprises a first lower gusset panel foldably connected to a second lower gusset panel, the first lower gusset panel being foldably connected to the second upper gusset panel along a first lateral fold line and being foldably connected to the first side panel along the longitudinal fold line; and

the second lower gusset comprises a third lower gusset panel foldably connected to a fourth lower gusset panel, the third lower gusset panel being foldably connected to the fourth upper gusset panel along a second lateral fold line and being foldably connected to the second side panel along the longitudinal fold line.

4. The carton of claim 3, wherein the second lower gusset panel is foldably connected to the bottom end panel along a third lateral fold line, and the fourth lower gusset panel is foldably connected to the bottom end panel along a fourth lateral fold line.

5. The carton of claim 4, wherein the first upper gusset panel is foldably connected to the second upper gusset panel along a first oblique fold line, the third upper gusset panel is foldably connected to the fourth upper gusset panel along a second oblique fold line, the first lower gusset panel is foldably connected to the second lower gusset panel along a third oblique fold line, and the third lower gusset panel is foldably connected to the fourth lower gusset panel along a fourth oblique fold line, the first oblique fold line, the second oblique fold line, the third oblique fold line, and the fourth oblique fold line being oblique with respect to the longitudinal fold line and the first lateral fold line.

6. The carton of claim 1, wherein the bottom end panel at least partially overlaps the second lower gusset panel and the fourth lower gusset panel, and the second lower gusset panel and the fourth lower gusset panel at least partially overlap the respective first lower gusset panel and third lower gusset panel.

7. The carton of claim 1, wherein the tear line comprises at least one end portion extending in a generally lateral direction in at least a portion of the second top panel and the at least one end wall.

8. The carton of claim 7, wherein:

the third upper gusset panel is connected to the top end flap along at least a portion of the at least one end portion of the tear line; and

the at least one end wall further comprises an attachment flap at least partially secured to the bottom end panel, the attachment flap being connected to the top end flap and the third upper gusset panel by a tear feature.

9. The carton of claim 7, wherein the tear line comprises a curved central portion extending from an end of the at least one end portion in the second top panel.

10. The carton of claim 2, wherein the tear line comprises at least one end portion and a curved central portion, the at least one end portion extending in a generally lateral direction in at least a portion of the second top panel and the at least one end wall, and the curved central portion extending in at least a central portion of the second top panel from an end of the at least one end portion.

11. The carton of claim 10, wherein:

the at least one end wall further an attachment flap connected to at least a portion of the top end flap and the third upper gusset panel by a tear feature;

the third upper gusset panel is connected to the top end flap along at least a portion of the at least one end portion of the tear line; and

the third upper gusset panel and the top end flap at least partially overlap the bottom end panel, and the attachment flap is at least partially secured to the bottom end panel.

12. The carton of claim 11, wherein the tear feature comprises a longitudinally-extending tear strip comprising at least one longitudinal tear line, and the at least one end portion of the tear line intersects the at least one longitudinal tear line.

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

a plurality of panels 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 first top panel foldably connected to the first side panel, and a second top panel foldably connected to the second side panel;

end wall features for forming at least one end wall when the carton is formed from the blank, the end wall features comprising at least a top end flap, a plurality of gussets and a bottom end panel, the top end flap being foldably connected to the second top panel along a longitudinal fold line, and the bottom end panel being foldably connected to the bottom panel along the longitudinal fold line;

a tear line, at least a portion of the tear line extending at least partially across the second top panel;

wherein the plurality of gussets comprises a first lower gusset, a second lower gusset, a first upper gusset, and a second upper gusset, at least a portion of the first upper gusset being foldably connected to the first top panel along the longitudinal fold line, and at least a portion of the first upper gusset for being at least partially in face-to-face contact with an interior surface of the top end flap when the carton is formed from the blank;

the first upper gusset comprises a first upper gusset panel foldably connected to a second upper gusset panel and the second upper gusset comprises a third upper gusset panel foldably connected to a fourth upper gusset panel; and

the second top panel is for at least partially overlapping the first top panel, the first upper gusset panel is for at least partially overlapping the second upper gusset panel, the third upper gusset panel is for at least partially overlapping the fourth upper gusset panel, and the second upper gusset panel and the fourth upper gusset panel are for at least partially overlapping the bottom end panel.

14. The blank of claim 13, wherein:

the first upper gusset panel is foldably connected to the first top panel along the longitudinal fold line;

the first upper gusset panel is for being disposed at least partially in face-to-face contact with the interior surface of the top end flap when the carton is formed from the blank; and

the third upper gusset panel being foldably connected to the second top panel along the longitudinal fold line.

15. The blank of claim 14, wherein:

the first lower gusset comprises a first lower gusset panel foldably connected to a second lower gusset panel, the first lower gusset panel being foldably connected to the second upper gusset panel along a first lateral fold line and being foldably connected to the first side panel along the longitudinal fold line; and

the second lower gusset comprises a third lower gusset panel foldably connected to a fourth lower gusset panel, the third lower gusset panel being foldably connected to the fourth upper gusset panel along a second lateral fold line and being foldably connected to the second side panel along the longitudinal fold line.

16. The blank of claim 15, wherein the second lower gusset panel is foldably connected to the bottom end panel along a third lateral fold line, and the fourth lower gusset panel is foldably connected to the bottom end panel along a fourth lateral fold line.

17. The blank of claim 16, wherein the first upper gusset panel is foldably connected to the second upper gusset panel along a first oblique fold line, the third upper gusset panel is foldably connected to the fourth upper gusset panel along a second oblique fold line, the first lower gusset panel is foldably connected to the second lower gusset panel along a third oblique fold line, and the third lower gusset panel is foldably connected to the fourth lower gusset panel along a fourth oblique fold line, the first oblique fold line, the second oblique fold line, the third oblique fold line, and the fourth oblique fold line being oblique with respect to the longitudinal fold line and the first lateral fold line.

18. The blank of claim 16, wherein the tear line comprises at least one end portion extending in a generally lateral direction in at least a portion of the second top panel and the end wall features.

19. The blank of claim 18, wherein:

the third upper gusset panel is connected to the top end flap along at least a portion of the at least one end portion of the tear line; and

the end wall features further comprise an attachment flap for being at least partially secured to the bottom end panel when the carton is formed from the blank, the attachment flap being connected to the top end flap and the third upper gusset panel by a tear feature.

20. The blank of claim 18, wherein the tear line comprises a curved central portion extending from an end of the at least one end portion in the second top panel.

21. The blank of claim 14, wherein the tear line comprises at least one end portion and a curved central portion, the at least one end portion extending in a generally lateral direction in at least a portion of the second top panel and the end wall features, and the curved central portion extending in at least a central portion of the second top panel from an end of the at least one end portion.

22. The blank of claim 21, wherein:

the end wall features further comprise an attachment flap connected to at least a portion of the top end flap and the third upper gusset panel by a tear feature;

the third upper gusset panel is connected to the top end flap along at least a portion of the at least one end portion of the tear line; and

the attachment flap is for being at least partially secured to the bottom end panel when the carton is formed from the blank.

23. The blank of claim 22, wherein the tear feature comprises a longitudinally-extending tear strip comprising at least one longitudinal tear line, and the at least one end portion of the tear line intersects the at least one longitudinal tear line.

24. A method of forming a carton, the method comprising:

obtaining a blank comprising a plurality of panels 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 first top panel foldably connected to the first side panel, and a second top panel foldably connected to the second side panel, end wall features comprising at least a top end flap, a plurality of gussets and a bottom end panel, the top end flap being foldably connected to the second top panel along a longitudinal fold line, the plurality of gussets comprising a first upper gusset comprising a first upper gusset panel foldably connected to a second upper gusset panel, and a second upper gusset comprising a third upper gusset panel foldably connected to a fourth upper gusset panel, the bottom end paned being foldably connected to the bottom panel along the longitudinal fold line

and a tear line, at least a portion of the tear line extending at least partially across the second top panel, wherein the plurality of gussets comprises a first lower gusset, a second lower gusset, a first upper gusset, and a second upper gusset, and at least a portion of the first upper gusset being foldably connected to the first top panel along the longitudinal fold line;

forming an interior of the carton at least partially defined by the plurality of panels; and

forming at least one end wall from the end wall features, the at least one end wall at least partially closing at least one end of the interior, the forming the at least one end wall comprising disposing at least a portion of the first upper gusset at least partially in face-to-face contact with an interior surface of the top end flap; and

positioning the first upper gusset panel and third upper gusset panel to at least partially overlap the respective second upper gusset panel and fourth upper gusset panel, and positioning the second upper gusset panel and the fourth upper gusset panel to at least partially overlap the bottom end panel.

25. The method of claim 24, wherein:

the first upper gusset panel is foldably connected to the first top panel along the longitudinal fold line;

the third upper gusset panel is foldably connected to the second top panel along the longitudinal fold line; and

the forming the at least one end wall comprises disposing the first upper gusset panel at least partially in face-to-face contact with the interior surface of the top end flap.

26. The method of claim 24, wherein:

the first lower gusset comprises a first lower gusset panel foldably connected to a second lower gusset panel, the first lower gusset panel being foldably connected to the second upper gusset panel along a first lateral fold line and being foldably connected to the first side panel along the longitudinal fold line, the second lower gusset panel being foldably connected to the bottom end panel;

the second lower gusset comprises a third lower gusset panel foldably connected to a fourth lower gusset panel, the third lower gusset panel being foldably connected to the fourth upper gusset panel along a second lateral fold line and being foldably connected to the second side panel along the longitudinal fold line, the fourth lower gusset panel being foldably connected to the bottom end panel; and

the forming the at least one end wall comprises positioning the bottom end panel to at least partially overlap the second lower gusset panel and the fourth lower gusset panel, and positioning the second lower gusset panel and fourth lower gusset panel to at least partially overlap the respective first lower gusset panel and third lower gusset panel.

27. The method of claim 24, wherein:

the tear line comprises at least one end portion and a curved central portion, the at least one end portion extending in a generally lateral direction in at least a portion of the second top panel and the at least one end wall, and the curved central portion extending in at least a portion of the second top panel from an end of the at least one end portion;

the at least one end wall further comprises an attachment flap connected to at least a portion of the top end flap and the third upper gusset panel by a tear feature, the third upper gusset panel being connected to the top end flap along at least a portion of the at least one end portion of the tear line; and

the forming the at least one end wall comprises securing at least a portion of the attachment flap to at least a portion of the bottom end panel.