Leak proof container with push lock body

Patent metadata

Field	Value
Publication number	US-11292633-B2
Application number	US-201916572809-A
Country	US
Kind code	B2
Filing date	Sep 17, 2019
Priority date	Sep 17, 2019
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A leak proof container and a method of forming the container from a blank. The blank includes a bottom panel, first and second side panels connected to the bottom panel at opposing lateral edges, and first and second end portions located at opposing longitudinal ends of the blank. Each end portion includes an inner end panel connected to the bottom panel, an outer end panel connected to the inner end panel, and first and second corner panels, each corner panel having an edge connected to a respective one of the first and second side panels and having an edge connected to the inner end panel. First and second locking tabs are defined in the outer end panel, each locking tab being defined by a lateral separation line located longitudinally inward from an outer longitudinal edge of the outer end panel and extending laterally to define a free tab end.

First claim

What is claimed is:

1. A blank for making a leak proof container comprising:
a bottom panel having a plurality of peripheral edges;
first and second side panels connected to the bottom panel at opposing lateral peripheral edges and defining lower edges of the container;
first and second end portions located at opposing longitudinal ends of the blank, each end portion including:
an inner end panel connected to a longitudinal peripheral edge of the bottom panel;
an outer end panel having an inner longitudinal edge hingedly connected to a longitudinal edge of the inner end panel;
first and second corner panels, each corner panel having a longitudinal edge connected to a respective one of the first and second side panels and a lateral edge connected to a lateral edge of the inner end panel;
first and second locking tabs defined in the outer end panel, each locking tab defined by a lateral separation line located longitudinally inward from an outer longitudinal edge of the outer end panel and extending laterally to define a free tab end; and

a longitudinal separation line extending longitudinally inward from the outer longitudinal edge of the outer end panel to each of the lateral separation lines, wherein the free ends of the tabs are defined at the longitudinal separation lines.

2. The blank as set forth in claim 1 , wherein each lateral separation line is defined by a first, panel edge and a second, tab edge extending to an inner end of the lateral separation line.

3. The blank as set forth in claim 2 , wherein the first, panel edge and the second, tab edge are colinear to the lateral separation line.

4. The blank as set forth in claim 1 , wherein the longitudinal and lateral separation lines are defined by cut lines that extend completely through the outer end panel.

5. The blank as set forth in claim 4 , wherein the longitudinal separation lines angle laterally inward toward each other extending from the outer longitudinal edge of the outer end panel toward a respective lateral separation line.

6. The blank as set forth in claim 1 , wherein the lateral separation lines are spaced from the outer longitudinal edge of the outer end panel a distance that is less than a distance from the lateral separation lines to the inner longitudinal edge of the outer end panel.

7. The blank as set forth in claim 1 , wherein the corner panels are formed as square panels, and including a diagonal fold line dividing each corner panel into first and second triangular gusset panels.

8. The blank as set forth in claim 7 , wherein each corner panel includes a lateral edge that is colinear with a lateral edge of the blank defined by an edge of one of the first and second side panels.

9. The blank as set forth in claim 1 , wherein a longitudinal dimension of the outer end panel is substantially less than a longitudinal dimension of the inner end panel.

10. A container including a bottom panel defining a bottom of the container and having a plurality of peripheral edges, first and second side panels connected to the bottom panel at opposing lateral peripheral edges and folded upward relative to the bottom panel, first and second end portions located at opposing longitudinal ends of the blank, each end portion including:
an inner end panel connected to a longitudinal peripheral edge of the bottom panel;
an outer end panel having an inner longitudinal edge hingedly connected to a longitudinal edge of the inner end panel;
first and second corner panels, each corner panel including longitudinal and lateral edges connected to respective edges of a side panel and the inner end panel, each corner panel folded about a diagonal gusset fold line to define a gusset, and each gusset folded perpendicular to a respective side panel to overlapping relationship with the inner end panel;
first and second locking tabs defined in the outer end panel, each locking tab defined by a lateral separation line located longitudinally inward from an outer longitudinal edge of the outer end panel and extending laterally to define a free tab end;
a longitudinal separation line extending longitudinally inward from the outer longitudinal edge of the outer end panel to each of the lateral separation lines, wherein the free ends of the tabs are defined at the longitudinal separation lines; and
wherein the outer end panel is folded about the inner longitudinal edge to overlapping relationship with at least a portion of each of the gussets, and the free tab ends are positioned between a respective gusset and the inner end panel to retain the outer end panel in position over the gussets.

11. The container as set forth in claim 10 , wherein each lateral separation line is defined by a first, panel edge and an adjacent second, tab edge extending to an inner end of the lateral separation line opposite the free end of the locking tab.

12. The container as set forth in claim 11 , wherein the first, panel edge and the second, tab edge are collinear to the separation line.

13. The container as set forth in claim 12 , wherein the gusset fold line intersects the first, panel edge and the second, tab edge at a common intersection point.

14. The container as set forth in claim 10 , wherein the gusset fold line extends from the bottom of the container to the inner longitudinal edge of the outer end panel.

15. The container as set forth in claim 10 , wherein the outer longitudinal edge of the outer end panel is located in spaced relation from the bottom of the container.

Assignees

• Int Paper Co

Inventors

• Wisecarver Mark Anthony
• Sloan Ii James William
• Hyatt Kenneth Calvin

Classifications

• B65D5/248

  and at least one side being extended and doubled-over to enclose the adjacent gusset flaps · CPC title

• B31B2110/35

  rectangular, e.g. square · CPC title

• B65D5/4279

  Joints, seams, leakproof joints or corners, special connections between panels (B65D5/209 takes precedence) · CPC title

• B31B50/26 Primary

  Folding sheets, blanks or webs · CPC title

• B31B50/732

  by folding or tucking-in locking flaps · CPC title