RU172364U1 - COVER FOR CAPACITY WITH LIQUID UNDER PRESSURE - Google Patents

Abstract

The lid for a container with a liquid under pressure belongs to the field of small containers, and can be used in various sectors of the national economy, for example, in the food industry, in particular, to covers for containers made of polyethylene terephthalate (hereinafter referred to as PET) intended for storing liquid carbonated media under pressure, for example, highly carbonated drinks. The proposed lid for containers is made in the form of a screw cap with an internal thread, and is equipped with a valve device consisting of a housing made in de tubes with a flange and a sealed bottom, channels are made in it and an elastic sleeve is installed on the outer surface. The excess pressure created in the tank forms or approximates the equilibrium in which the dissolved gases in the liquid cease to come out, thereby leaving the quality of the carbonated liquid in the original level or reducing the rate of release of dissolved gases from the liquid to the outside. This effect is very important when storing recently opened PET containers filled with carbonated liquids, such as highly carbonated drinks.

Description

The utility model relates to the field of small containers, and can be applied in various sectors of the national economy, for example, in the food industry, in particular, to caps for containers made of polyethylene terephthalate (hereinafter referred to as PET), designed to store liquid carbonated media under pressure, for example, highly carbonated drinks.

Known screw cap for capping containers containing a cylindrical body with internal thread, closed on one side with the bottom (see RF patent No. 2091282, MGZH - B65D 41/04) - prototype.

The disadvantage of this cap is that its use to close containers designed to store liquids under pressure, with the subsequent inlet of excess gas pressure into the tank, is impossible without depressurization of the connection of the cap to the tank.

The objective of this utility model is to create a cover for a container designed to store liquid media under pressure, providing a reliable tight connection of the cover with the container, while simultaneously filling the container with excess gas pressure, in order to preserve the conditions in the container for storing carbonated liquids without leaving dissolved in the liquid gas into the free volume of the tank.

This problem is solved in that the lid for containers is made in the form of a screw cap with an internal thread and is equipped with a valve device consisting of a housing made in the form of a tube with a shoulder and a sealed bottom, while channels are made in it and an elastic sleeve is installed on the outer surface.

Using this design allows you to leave the quality of carbonation of the liquid at the initial level or to reduce the rate of exit of gas from the liquid. This effect is achieved by creating excess pressure in the vessel without depressurization, thereby creating equilibrium conditions in which dissolved gases in the liquid stop coming out or the rate of release of dissolved gases from the liquid decreases. The design of the lid provides the possibility of reusable use of it on different containers, due to the use of standardized thread caps for PET containers, as well as the use of widespread standardized pumps for both automotive and bicycle industries to pump excess pressure inside the tank.

The design of the utility model is shown in the drawing.

The cover is made in the form of a screw cap 1 with an internal thread, and is equipped with a valve device consisting of a body 2 made in the form of a tube with a shoulder 3 and a sealed bottom 4 on one side and a closing cap 5 on the other, while channels 6 are made in it for gas supply into the tank and on the outer surface of the installed elastic sleeve 7.

The use of the cover.

The lid is mounted on a container containing carbonated liquid, with a force providing a tight connection of the cover with the neck of the container. Next, the cap (5) is removed from the inlet of the valve device, through which excess pressure is pumped into the tank by means of a pump sealed on the inlet. Under the action of the injected overpressure, the elastic sleeve (7) expands and passes a portion of gas through the channels (6), while the flange (3) fixes the position of the elastic sleeve (7) on the valve body (2). When equalizing the internal pressure with the injected, the elastic sleeve (7) restores the tightness of the valve device in the direction from the tank to the outside. To prevent contaminants and other foreign objects from getting into the valve, the design provides a lockable cap (5) that is worn on the inlet of the valve device for the duration of liquid storage in the tank.

It is advisable to make the inlet of the valve device with a thread of standard diameter, suitable for use with standardized pumps for the automotive or bicycle industry.

Thus, the excess pressure created in the tank creates or brings about an equilibrium in which the dissolved gases in the liquid stop coming out, thereby leaving the quality of the carbonated liquid at the initial level or reducing the rate of release of dissolved gases from the liquid to the outside. This effect is very important when storing recently opened PET containers filled with carbonated liquids, such as highly carbonated drinks.

Claims (1)

A cover for a container with a liquid under pressure, made in the form of a screw cap with an internal thread, characterized in that it is equipped with a valve device consisting of a housing made in the form of a tube with a collar and a sealed bottom on one side and a closing cap on the other, In this, channels are made in it and an elastic sleeve is installed on the outer surface.

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