Patent ID: 9114971
Filing Date: 2015-08-25
Classification: B67D

Abstract:
1. A method for storing a carbonated beverage in a self-regulating and constant pressure maintaining product dispenser assembly including a product container that includes a bottom and an open top, wherein an inner space is defined within the container between the bottom and the top, the method comprising the following steps: providing an amount of an adsorption material maintained in a dry environment within the inner space, the adsorption material having adsorbed a specific amount of a propellant gas; placing a flexible bag on the bottom of the container within the inner space of the container, the flexible bag defining a pressure space within the flexible bag and a product space configured to contain the carbonated beverage within substantially all of the inner space between the pressure space and the top of the container, the pressure space being exposed to the adsorption material; filling the product space with the carbonated beverage; attaching a dispensing tap to the open top of the container so as to be in fluid communication with the product space; and filling the pressure space with the propellant gas to an initial pressure of 0.1-3.0 bar above atmospheric pressure when subjected to a temperature in a temperature range of 0° C.-90° C., wherein the specific amount of the propellant gas adsorbed by the adsorption material is sufficient for allowing the flexible bag to expand, thereby increasing the volume of the pressure space so as to substitute at least some of the product space with the increasing volume of the pressure space when the carbonated beverage having a temperature in the temperature range is being dispensed from the product space by flowing through the dispensing tap, while substantially maintaining the initial pressure in the pressure space during a complete substitution of the product space by the pressure space, the amount of the adsorption material being inherently capable of substantially maintaining the initial pressure in the pressure space by: