Two-layer thermal container

Abstract

A two-layer thermal container according to the present invention comprises an outer container having a first intake port at an upper end thereof and an opening at a lower portion thereof; an inner container as a cylindrical body having a second intake port formed at an upper end thereof and inserted into an opening of the outer container with the outer circumferential surface of the second intake port being in close contact with the inner circumferential surface of the first intake port; a sealing member assembled to the opening to seal the opening and having its upper surface contacted with the bottom surface of the inner container; and an insertion stopper inserted into the second intake port of the inner container to seal the second intake port.

Description

BACKGROUND OF THE INVENTIONField of the Invention[0001]The present invention generally relates to a thermal container, and more particularly, to a thermal container having a two-layer wall that blocks direct contact with outside air.Description of the Related Art[0002]In order to keep the food temperature, a thermal container generally has a two-layer wall of which inner space is in a vacuum state. But, for using this conventional thermal container, the food or beverage should be cooled or heated to a desired temperature to be stored in the thermal container. Thus, especially when the beverage is intended to be stored in a cool state, the beverage should be contained in another container and then put in a refrigerator for a long time before the beverage is contained in the thermal container. Also, as time passes, the heat retaining performance may be deteriorated by air intrusion into the vacuum space between double walls of a conventional thermal container. In this case, the conven...

AI Technical Summary

Benefits of technology

The present invention is a two-layer thermal container that prevents direct heat transfer between the food and outside air, allows adjustment of temperature, and is easy to carry away from a refrigerator. The inner and outer containers are easy to separate and wash, ensuring sanitary conditions. The container has a ventilation window that can be opened and closed repeatedly to maintain a sealed state.

Problems solved by technology

Also, as time passes, the heat retaining performance may be deteriorated by air intrusion into the vacuum space between double walls of a conventional thermal container.

In this case, the conventional thermal container has no means for blocking the direct heat transfer between the food and the outside air except the double wall of which the inside is initially formed to be of vacuum state Thus, when the heat retaining performance is deteriorated due to air intrusion, the conventional thermal container may come to an end of its lifespan.

However, according to the prior art, it is hard to separate the outer container and the inner container because it is in vacuum state between them.

When the outer container and the inner container are separated, forming a vacuum state will require time and efforts and extra apparatus.

Thus, when the outer container and the inner container are coupled to each other, it takes a considerable time to cool the food in the inner container and put it in a refrigerator directly to drop the temperature of the food.

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