Patent ID: 7185786
Filing Date: 2007-03-06
Classification: B65D,Y02W

Abstract:
1. A gas storage and delivery system for restoring pressure as it is depleted from a pressurized container, comprising: a container holding a product under pressure to be dispensed from the container; a quantity of gaseous material under pressure in the container, occupying a space in the container and applying to the product a predetermined pressure of from about 30 to about 180 psig; and a quantity of gas-adsorbing material in the container, on which is adsorbed a quantity of the gaseous material, and from which the gaseous material is desorbed and released into the container in response to a decrease in pressure in the container, thereby restoring and maintaining a predetermined pressure in the container as product is depleted from the container, wherein said gas-adsorbing material is selected from the group consisting of activated carbon, activated alumina, a carbon fiber composite molecular sieve, natural zeolite, and synthetic zeolite, and is contained within a cover that is porous to both the gaseous material and the product.