Container of the type comprising a receptacle and a hinged lid

Abstract

The invention relates to a container comprising: a receptacle comprising an internal cavity designed to accommodate contents, and an opening; a lid capable of closing the opening; means for connecting the lid to the receptacle in such a way as to allow the lid to pivot with respect to the receptacle; and a capsule arranged between the receptacle and the lid, which capsule hermetically seals the opening; in which the capsule is held against an edge of the opening by negative pressure inside the cavity.

Description

FIELD OF THE INVENTION[0001]This invention relates to the field of containers of the kind comprising a receptacle and a hinged lid.BACKGROUND ART[0002]Containers (generally called “cans”) are known which comprise a receptacle and a lid provided with a flat gasket. The receptacle comprises a wall defining an internal cavity designed to accommodate contents, and an edge (or lip) defining an opening capable of being closed by the lid.[0003]Such containers generally comprise means for connecting the lid to the receptacle in such a way as to allow the lid to pivot with respect to the receptacle.[0004]The container is generally made of glass and the connecting means comprise an electroplated wire frame.[0005]Such containers are typically used to contain food products exposed to a sterilizing or pasteurizing treatment, such as terrines, pâtés, or foies gras.[0006]At the time of closing the receptacle, a vacuum is created in the cavity in that closing of the lid is performed in a vacuum (in...

AI Technical Summary

Benefits of technology

[0024]The operation of placing the capsule may be performed automatically and at high rates. Thereby it is possible in particular to reduce the time of contact of the contents with the surrounding atmosphere. Oxidation of certain food products in contact with the surrounding air may indeed have a significant impact on the visual and organoleptic aspect of the product, especially for foies gras and certain pâtés.

[0025]Thanks to the capsule, the presence of a gasket between the receptacle and the lid is no longer required. Therefore, the risks of the contents being contaminated by the gasket are eliminated.

[0026]Furthermore, due to the capsule being protected by the lid when it is in the closed position, the lid will guarantee that the capsule or the information appearing on the capsule is not affected.

[0027]After first-time use, once the capsule has been removed, the receptacle can be easily closed again by means of the lid.

[0030]the means for causing a disruption of the vacuum inside the cavity comprise an area of reduced resistance of the capsule so as to facilitate incipient tearing of the capsule,

Problems solved by technology

A disadvantage of this kind of container is that the gasket can be in contact with the contents of the receptacle, which might lead to contamination of the contents.

Another disadvantage is that opening of this kind of container is sometimes difficult for the user as it requires a displacement of the gasket.

Finally, the method for assembling such containers is relatively complicated, because the closing of the lid is performed under a vacuum bell or in an autoclave in order to create a vacuum.

Therefore, these operations are performed at relatively slow rates.

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