Tamper evident meal delivery carton

Patent metadata

Field	Value
Publication number	US-11919684-B2
Application number	US-202117340894-A
Country	US
Kind code	B2
Filing date	Jun 7, 2021
Priority date	Jul 12, 2018
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

A tamper evident feature for a container is provided. The tamper evident feature may include a locking tab connected to a wall panel or cover panel of the container and a receiving slot provided on the opposing cover panel or wall panel of the container. The locking tab may include an outer terminal edge and a slit extending laterally across the locking tab. The slit may provide a cut edge extending partially across an intermediate portion of the locking tab and allow for a tab end portion to bend relative to the remainder of the locking tab. The receiving slot may include a receiving slit defined into the cover panel of the container and configured to receive the locking tab. The receiving slit may provide a receiving edge that engages with the cut edge of the locking tab to secure the cover panel in a closed position.

First claim

What is claimed is:

1. A tamper evident feature for a container having a wall panel and a cover panel, the tamper evident feature comprising:
a locking tab connected to the cover panel of the container, the locking tab comprising:
a terminal edge defining an outer edge of the locking tab;
an intermediate locking slit defined through the locking tab and extending at least partially across a width of the locking tab, the intermediate locking slit forming an intermediate locking edge within the locking tab, wherein the intermediate locking slit of the locking tab includes a transverse cut end located on each end of the intermediate locking slit, wherein each transverse cut end extends generally perpendicularly toward the terminal edge; and
a tear-away line extending from each of the transverse cut ends to the terminal edge, wherein each tear-away line is configured as a line of weakness on the locking tab; and

a receiving slot defined in the wall panel of the container, the receiving slot comprising:
a receiving slit defined into an intermediate portion of the wall panel, the receiving slit having a length equal to or greater than the width of the locking tab, and the receiving slit defining a receiving cut edge within the wall panel;

wherein the receiving slot is configured to receive the locking tab and the intermediate locking edge of the locking tab is configured to align with the receiving cut edge to engage the tamper evident feature.

2. The tamper evident feature of claim 1 , wherein the intermediate locking edge of the locking tab is positioned below and slightly beyond the receiving cut edge of the receiving slot when the tamper evident feature is fully engaged.

3. The tamper evident feature of claim 1 , wherein the tamper evident feature restricts the locking tab from being removed from the receiving slot without deformation of the locking tab or the container after the tamper evident feature has been fully engaged.

4. The tamper evident feature of claim 1 , wherein the receiving slit and the receiving cut edge have a curved shape, and wherein the intermediate locking slit, and intermediate locking edge have a curvature generally corresponding to a curvature of the receiving slit and the receiving cut edge.

5. The tamper evident feature of claim 1 , wherein the locking tab further comprises end fold lines extending laterally from each end of the intermediate locking slit to a perimeter side edge of the locking tab.

6. The tamper evident feature of claim 1 , wherein the locking tab further comprises a ribbed extension portion extending between the intermediate locking edge and the terminal edge, wherein the ribbed extension portion comprises a plurality of ribs.

7. The tamper evident feature of claim 1 , wherein the receiving slot further comprises at least one minor cut line extending from the receiving slit and toward an upper edge of a front wall panel.

8. A tamper evident container comprising:
a plurality of wall panels foldably connected together to form a sidewall, the plurality of wall panels including a front wall panel;
a cover panel foldably connected to one of the plurality of wall panels and movable between an open and closed position;
a bottom end construction connected to the plurality of wall panels; and
a tamper evident feature comprising:
a locking tab connected to the cover panel extending beyond an outer edge of the cover panel, the locking tab including an intermediate locking slit defined through the locking tab and extending at least partially across a width of the locking tab, the intermediate locking slit forming an intermediate locking edge within the locking tab, wherein the intermediate locking slit of the locking tab includes a transverse cut end located on each end of the intermediate locking slit, wherein each transverse cut end extends generally perpendicularly toward a terminal edge of the locking tab, wherein the locking tab further comprises a tear-away line extending from each of the transverse cut ends to the terminal edge, wherein each tear-away line is configured as a line of weakness on the locking tab; and
a receiving slot intermediately positioned within the front wall panel, the receiving slot including a receiving slit defined through the front wall panel and having a length greater than or equal to the width of the locking tab, the receiving slit forming a receiving cut edge within the front wall panel;

wherein the receiving slot is configured to receive the locking tab and the intermediate locking edge of the locking tab is configured to align with the receiving cut edge to engage the tamper evident feature;
wherein after the tamper evident feature is engaged, the tamper evident feature restricts the cover panel from moving from the closed position to the open position.

9. The tamper evident container of claim 8 , wherein the intermediate locking edge of the locking tab is positioned below and slightly beyond the receiving cut edge of the receiving slot when the tamper evident feature is fully engaged.

10. The tamper evident container of claim 8 , further comprising a front fold flap foldably connected to a front edge of the cover panel by a fold line, wherein the locking tab is connected to the front fold flap.

11. The tamper evident container of claim 8 , wherein the receiving slit and the receiving cut edge have a curved shape, and wherein the intermediate locking slit, and intermediate locking edge have a curvature generally corresponding to a curvature of the receiving slit and the receiving cut edge.

12. The tamper evident container of claim 8 , wherein the locking tab further comprises end fold lines extending laterally from each end of the intermediate locking slit to a perimeter side edge of the locking tab.

13. The tamper evident container of claim 8 , wherein the locking tab further comprises a ribbed extension portion extending between the intermediate locking edge and a terminal edge of the locking tab, wherein the ribbed extension portion comprises a plurality of ribs.

14. The tamper evident container of claim 8 , wherein the receiving slot further comprises at least one minor cut line extending from receiving slit toward an upper edge of the front wall panel.

15. A tamper evident feature for a container having a wall panel and a cover panel, the tamper evident feature comprising:
a locking tab connected to the cover panel of the container, the locking tab comprising:
a terminal edge defining an outer edge of the locking tab;
an intermediate locking slit defined through the locking tab and extending at least partially across a width of the locking tab, the intermediate locking slit forming an intermediate locking edge within the locking tab; and
a ribbed extension portion extending between the intermediate locking edge and the terminal edge, wherein the ribbed extension portion comprises a plurality of ribs; and

a receiving slot defined in the wall panel of the container, the receiving slot comprising:
a receiving slit defined into an intermediate portion of the wall panel, the receiving slit having a length equal to or greater than the width of the locking tab, and the receiving slit defining a receiving cut edge within the wall panel;

wherein the receiving slot is configured to receive the locking tab and the intermediate locking edge of the locking tab is configured to align with the receiving cut edge to engage the tamper evident feature.

16. A tamper evident container comprising:
a plurality of wall panels foldably connected together to form a sidewall, the plurality of wall panels including a front wall pan

Assignees

• Huhtamaki Inc

Inventors

• Zeiler George

Classifications

• B65D5/106 Primary

  the opening being a slot · CPC title

• B65D5/0254 Primary

  with end closures formed by inward folding of flaps and securing them by means of a tongue integral with one of the flaps · CPC title

• B65D5/542

  the lines of weakness being provided in the container body · CPC title

• B65D5/6664

  combined with flaps or tabs provided at the side edges of the lid · CPC title

• B65D17/04

  of polygonal cross-section · CPC title