Aerosol Package With Fermentation Propulsion

Abstract

A container system for a cosmetic product has a hollow pressure containment vessel defining a chamber that encloses a sealed, collapsible, air-less pouch container containing product to be dispensed. A fermentation propulsion system is provided between the inner wall of the chamber and the air-less pouch container. The fermentation propulsion system comprises a quantity of yeast able to generate fermentation gas within the chamber, a quantity of sugar for the yeast to consume to fuel the fermentation process, and yeast extract to boost fermentation activity. The fermentation gas serves as propellant for dispensing the product by applying pressure to the pouch container. A valve is secured in the opening of the vessel such that the chamber is hermetically sealed, and so that product can be selectively dispensed from the vessel.

What is claimed is: 
     
         1 . A container system for a cosmetic product comprising:
 a pressure containment vessel having a hollow body defining a chamber, the vessel having a first end with an opening into the chamber and a closed second end;   a container having a flexible wall defining a compressible reservoir for containing the product, the container having an outlet in fluid communication with the reservoir, the container positioned in the chamber with the outlet in or adjacent the opening;   a valve comprising an actuator and a housing, the actuator having a dispensing port, an inlet port and a duct connecting the dispensing port and the inlet port in fluid communication, the valve housing secured in the opening of the vessel such that the chamber is hermetically sealed, the valve housing secured to the container such that the inlet port is in fluid communication with the outlet of the container, the actuator selectively operable to dispense the product from the reservoir through the dispensing port; and   a fermentation-based propulsion system in the chamber between the container and the vessel, the propulsion system comprising a quantity of microorganisms able to bring about fermentation to generate gas within the chamber which serves as propellant to pressurize the chamber, and a quantity of food for the microorganisms to consume to generate the gas in a volume sufficient to pressurize the chamber;   wherein the volume of gas generated in the chamber exerts pressure on the flexible wall sufficient to dispense product when the valve is actuated.   
     
     
         2 . The container system of  claim 1  wherein the container has a first compressed configuration during assembly of the system and a second expanded configuration after filling of the product. 
     
     
         3 . The container system of  claim 1  further comprising a neck fitment structure securing the valve in the opening of the vessel. 
     
     
         4 . The container system of  claim 1  wherein the container is a flexible pouch. 
     
     
         5 . The container system of  claim 1  wherein the microorganisms comprise a yeast and the quantity of food comprises a sugar. 
     
     
         6 . The container system of  claim 5  further comprising an activity booster added to the fermentation-based propulsion system. 
     
     
         7 . The container system of  claim 6  wherein the booster comprises a yeast extract. 
     
     
         8 . The container system of  claim 7  wherein the yeast extract comprises at least one of vitamins, amino acids, phosphates and ammonium sulfate. 
     
     
         9 . The container system of  claim 1  further comprising a valve actuator button secured to the valve actuator with a venturi in fluid communication with the dispensing port.