RU26637U1 - FOOD STORAGE CONTAINER - Google Patents

Description

Food storage container

This utility model relates to the design of insulated containers.

Thermoses are widely known for maintaining for a long time the initial temperature of various substances. Thermoses made of glass or metal contain a vacuum gap between two mirror-reflecting cylindrical or spherical walls (ed. USSR Certificate No. 1007646 of 08.25.80, class A 47 J39 / 02). A disadvantage of the known design of the thermos is the complexity of manufacture, high cost and incomplete use of the occupied volume.

A known design of a multifunctional container in the form of a parallelepiped with walls of a fine-meshed polymer (RF patent No. 2032863 from 06/30/92), selected as a prototype. The disadvantage of the prototype is the large mass and occupied volume, which is associated with the rigidity of the structure, which does not allow to reduce the occupied volume in the absence of a storage object.

A new design of the container with a shell of heat-insulating material is proposed, which is used as a sheet of foamed plastic, for example, polyethylene coated with aluminum foil (trade name "penofol"), made in the form of a bag or envelope.

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The essence of the construction is illustrated in FIG. 1-3.

In FIG. 1 shows a bag with an entrance aperture 1 from a penofol sheet bent in half with firmware 2 around the perimeter with threads, for example, synthetic, or metal brackets using a stapler.

Figure 2 and 3 shows a variant of the bag, in which the side parts are fastened with tapes 3, forming a connection of the type "burdock 4 or hook. In this case, the tape is attached to the surface of the penofol by sewing with thread or wire. The mount in an enlarged view is shown in figure 3.

Penofol is a foamed layer of polyethylene having a closed porous structure of 3 mm thickness and placed between layers of aluminum foil that are well reflecting thermal radiation and about 10 microns thick. The pores can be filled with air or other heavier gas, such as argon. The thermal resistance of penofol is about 1.2 m2. ° C W, which is equivalent to heat transfer through a wall with a thickness of 2.5 bricks or through 46 mm of polystyrene foam (polystyrene).

A bag or an envelope from a sheet of heat insulator is obtained due to flashing with threads (wire) or adhesive bonding of a connector like “burdock to penofol.

Flexible walls of the bag make it easy to change its internal volume so that it differs as little as possible from the volume of products placed in it. Tightly closing the bag with the food placed inside allows you to keep this product hot or cold for a long time, since heat exchange with the environment is minimized. The use of such bags when storing food in the refrigerator, including in the freezer, makes it possible to keep food refrigerated or frozen for a long time during power outages. Problems associated with

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transporting chilled food in bags outside the refrigerator. The heat-insulated bags are convenient in operation, have a low weight (several tens of grams), low cost and high heat-insulating properties.

The detachable bag can be laid out in a flat sheet, which allows you to clean and rinse the walls, increasing its service life. In the absence of food, the bag folds easily, taking up little space.

Claims (2)

1. A container with a shell of insulating material, characterized in that the shell is made in the form of a bag or envelope of sheet foam plastic coated with radiation-reflecting aluminum foil. 2. The container according to claim 1, characterized in that the shell is made detachable using mechanical firmware, glue or compounds of the type "burdock".