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Reliable opening can end for reclosing can

a can end and reliable technology, applied in the field of containers, can solve the problems of carbon dioxide escaping and spillage, and achieve the effect of high reliability

Inactive Publication Date: 2018-04-19
E V D S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an improved container for food products such as beverages. The container is easier to produce and modify for mass production compared to traditional cans. It requires fewer parts and can be applied to different types and sizes of can ends. The container has good pourability and drinkability.

Problems solved by technology

With existing cans, a permanent opening is formed by these manipulations, so that the contents of the can may be drunk, but on the other hand carbon dioxide may escape and spills may occur.

Method used

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  • Reliable opening can end for reclosing can
  • Reliable opening can end for reclosing can
  • Reliable opening can end for reclosing can

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0067]FIGS. 1 and 2 show a can end and FIGS. 3a and 3b illustrate another embodiment of a can end. Referring to FIG. 3a, the central part of the can end 2 has a tear panel or cap top 3, that can be torn off along a pre-formed shallow groove 9 or other form of mechanical weakness, by pulling at the pull tab 4, which works as a lever. Pull tab 4 is attached to can end 2 by a fixing device 10 such as a rivet. As disclosed in WO 2012 / 028694, “Reclosing can for food product” (mentioned hereinbefore), the cap top 3 is torn completely from the can end, i.e. removed from the can end, along the pre-defined groove 9, thus creating a drinking or pouring aperture. After tearing off the cap top 3, the cap top 3 remains located on top of a shut-off valve 6 (shown in FIG. 3b), which is configured to seal the drinking or pouring aperture after drinking or pouring. The embodiment of the can end illustrated in FIG. 3b further comprises an intermediate element 80 to which the shut-off valve 6 is attac...

second embodiment

[0088]FIG. 24 illustrates means for preventing propagation of the tear outside of the pre-defined groove 9. In this embodiment, the means for preventing propagation of the tear outside of the pre-defined groove comprise an additional groove 28. In FIG. 24, the additional groove 28 is oriented perpendicularly to the direction of the pre-defined groove 9 in its endpoint 24 which is the means 24 for arresting propagation of the tear.

third embodiment

[0089]FIG. 25 illustrates means for preventing propagation of the tear outside of the pre-defined groove 9, that is very similar to the one shown in FIG. 24. However, while in the embodiment of FIG. 24 the additional groove 28 passes through the endpoint 24 of the pre-defined groove, in the embodiment of FIG. 25 the additional groove 28 is positioned at a small distance, of e.g. 1 mm, from the abrupt change of direction 21.

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PUM

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Abstract

A can end for a metal beverage can, the can end including a cap top, arranged in connection to a pull tab configured to remove the cap top from the can end along a pre-defined groove, to thereby create a drinking or pouring aperture; and a shut-off valve, configured to seal the drinking or pouring aperture after drinking or pouring. The cap top is configured to remain located, after the removal, on top of the shut-off valve; and the pre-defined groove includes a stop for arresting, in a pre-defined location of the pre-defined groove, propagation of a tear along the pre-defined groove during the removal, where the stop includes an abrupt change of direction or an endpoint of the pre-defined groove. The can may be configured for containing a carbonated drink.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a container such as a can for a food product, especially a beverage, as well as a method of manufacturing the container or can. The container or can is especially suitable for carbonated beverages or drinks. The container or can can be provided with means for easily reclosing after the first opening.BACKGROUND TO THE INVENTION[0002]Metal beverage cans usually have a pull tab (working as a lever mechanism) to allow for the opening of the can along a pre-determined shallow groove or score. This design allows venting the excess pressure in the can when it is opened. As the tab is lifted, first a vent score is severed, allowing the gases in the can to be released, and then the aperture score is ruptured, which defines an aperture through which the contents of the beverage can may be dispensed. The groove has the shape of a non-closed loop, so that when pressure is applied by the lever to rip the metal along the groove, the met...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D17/28
CPCB65D17/4014B65D2517/0046B65D2517/507
Inventor VANDERSTRAETEN, ERWIN
Owner E V D S
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