Tamper evident meal delivery carton

Patent metadata

Field	Value
Publication number	US-11040797-B2
Application number	US-201916510427-A
Country	US
Kind code	B2
Filing date	Jul 12, 2019
Priority date	Jul 12, 2018
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

A tamper evident feature for a container is provided. The tamper evident feature may include a locking tab connected to a wall panel of the container and a receiving slot provided on a cover panel of the container. The locking tab may include a locking end portion with 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 end portion of 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 wall panel of the container, the locking tab comprising:
a base end portion secured to the wall panel;
a locking end section extending from the base end portion;
a terminal edge defining an outer edge of the locking end section;
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 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 cover panel of the container, the receiving slot comprising:
a receiving slit defined into an intermediate portion of the cover 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 cover 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 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.

3. 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.

4. 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.

5. 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.

6. The tamper evident feature of claim 1 , wherein the base end portion of the locking tab is connected to the wall panel by a perforated base edge.

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 a front edge of the cover panel.

8. The tamper evident feature of claim 1 , further comprising a horizontal restricting slot defined into a front fold edge of the cover panel, wherein the horizontal restricting slot has a length equal to or greater than the width of the locking tab and is configured to receive the locking tab prior to the locking tab being inserted into the receiving slot.

9. A tamper evident container comprising:
a plurality of wall panels foldably connected together for 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 provided on the front wall panel and the cover panel, the tamper evident feature comprising:
a locking tab connected to the front wall panel and extending beyond an upper edge of the front wall 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 cover panel, the receiving slot including a receiving slit defined through the cover 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 cover 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.

10. The tamper evident container of claim 9 , further comprising a front fold flap foldably connected to a front edge of the cover panel by a fold line, wherein the fold line includes a horizontal restricting slot configured for receiving the locking tab.

11. The tamper evident container of claim 9 , 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 9 , 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 9 , 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 9 , wherein the locking tab is connected to the front wall panel by a perforated base edge.

15. The tamper evident container of claim 9 , wherein the receiving slot further comprises at least one minor cut line extending from the receiving slit and toward a front edge of the cover panel.

16. 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 wall panel of the container, the locking tab comprising:
a base end portion secured to the wall panel;
a locking end section extending from the base end portion;
a terminal edge defining an outer edge of the locking end section;
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 cover panel of the container, the receiving slot comprising:
a receiving slit defined into an intermediate portion of the cover panel, the receiving slit having a length equal to or

Assignees

• Huhtamaki Inc

Inventors

• Zeiler George

Classifications

• 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

• Y10S206/807

  Tamper proof · CPC title

• B65D2401/60

  Tearable part both of the container and of the closure · CPC title

• B65D5/106 Primary

  the opening being a slot · CPC title