Can for the extemporaneous preparation of beverages by extraction and/or infusion, provided with a safety lid

Abstract

The can (10; 10A; 10B; 10C) for the extemporaneous preparation of beverages by extraction and / or infusion comprises a first chamber (12) intended to collect the final beverage, a second chamber (14) containing a drinkable liquid and a filtering device (16) containing a substance able to produce the required beverage by extraction and / or infusion. The can is foreseen to be put onto a heating source after opening the can lid (18; 18A, 18B; 18C) and operating the filtering device (16) by the user. The lid (18; 18A, 18B; 18C) comprises: an outer rim portion (22; 22B) intended to remain fixed to the can lateral wall (20) when opening the can; an inner removable portion (24; 24A; 24B; 24C) intended to be ripped in order to open the can; and a predetermined breaking line (34) separating said inner removable portion (24; 24A; 24B; 24C) from said outer rim portion (22; 22B). The breaking line (34) is provided in an annular portion (28; 28A; 28B; 28C) forming part of the lid (18; 18A, 18B; 18C)and made of plastic material. The outer part (32; 32B) of the annular portion (28; 28A; 28B; 28C) is part of the outer rim portion (22; 22B) while the inner part thereof (24; 24A; 24B; 24C) is part of the inner removable portion (24; 24A; 24B; 24C).

Description

technical field [0001] The invention relates to a canister for instant preparation of beverages by drawing and / or pouring. Background technique [0002] A canister for the instant preparation of beverages by drawing and / or pouring is disclosed in EP-A-1610657 and has recently been applied on the market. The tank has a first chamber intended to collect the final beverage, a second chamber containing a drinkable liquid and filtering means containing substances capable of producing the desired beverage by extraction and / or infusion. The first chamber is closed by the jar lid. [0003] The canister is intended to be placed on a heat source after the lid has been opened and the filter device has been manipulated by the user. To this end, the lid has an outer portion intended to remain fixed to the can when the can is opened, a removable inner portion provided on the lid and a groove, the removable inner portion Intended to be torn by pulling the tab to open the can, the groove...

AI Technical Summary

Problems solved by technology

[0008] The most important disadvantage of the above-mentioned conventional cans is that once the inner part of the lid has been torn off, the outer and removed parts which remain attached to the vertical wall of the can will have sharp edges, so that when the user handles the can for There is a risk of being cut when accessing the food or drink contained within, or when handling the can

In this case, due to the conversion of the liquid inside to vapor, the pressure inside the tank can reach very high values, leading, for example, to an explosion of the tank

Conventional safety devices for venting the internal pressure do not satisfy the requirements for easy handling, safety, as the known discharge valves are usually arranged on the side walls of these containers (e.g. mocha coffee machines or pressure cookers), there is a risk of internal overpressure in the discharge valves. Packaging and the need to reduce costs while these are used in tanks for large dispensing

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