Propellantless Aerosol System

Abstract

A propellantless aerosol fluid dispensing system including a reusable pressurizable canister and a disposable fluid containing pouch, the pouch including a valve assembly for dispensing the fluid.

1 . A propellantless aerosol fluid dispensing system comprising:
 a container having a pressurizable chamber, the pressurizable chamber including a sealable opening and at least one aperture;   a pressurizing means for intermittently or continuously pressurizing the pressurizable chamber;   one or more pressure-collapsible pouches each containing a dispensable fluid material, the one or more pressure-collapsible pouches each having at least one opening;   a valve assembly associated with each of the one or more pressure-collapsible pouches, the valve assembly comprising the combination of a fitment, a valve and a nozzle wherein the fitment is located in each pressure-collapsible pouch opening such that the pressure-collapsible pouch opening is sealed to the fitment such that the valve assembly valve and nozzle extend at least partially beyond the pressure-collapsible pouch; and   a pressure resistant pouch seal.   
     
     
         2 . The system of  claim 1  wherein the sealable opening is a removable cap that is associated with an opening in the pressurizable chamber. 
     
     
         3 . The system of  claim 2  wherein the at least one aperture is located on the removable cap. 
     
     
         4 . The system of  claim 1  wherein the pressurizable chamber has a single aperture. 
     
     
         5 . The system of  claim 1  wherein the container includes a second chamber adjacent to the first chamber. 
     
     
         6 . The system of  claim 5  wherein the pressurizing means is at least partially located in the second chamber. 
     
     
         7 . The system of  claim 5  wherein the pressurizing means is located entirely in the second chamber. 
     
     
         8 . The system of  claim 5  wherein a wall separates the pressurizable chamber from the second chamber. 
     
     
         9 . The system of  claim 5  wherein, in operation, the second chamber is not pressurized. 
     
     
         10 . The system of  claim 1  wherein the pressurizing means is a battery operated compressor. 
     
     
         11 . The system of  claim 10  wherein the pressurizing means includes a load cell for monitoring the pressure of pressurizable chamber wherein the compressor is activated and deactivated based upon load cell pressure readings. 
     
     
         12 . The system of  claim 1  wherein the fitment of the at least one pouch unites with the at least one aperture to form the pressure resistant pouch seal. 
     
     
         13 . The system of  claim 1  wherein the fitment includes a threaded end and the at least one aperture includes complementary threads wherein the pressure resistant pouch seal is formed when the pouch fitment is threaded into the at least one aperture. 
     
     
         14 . The system of  claim 1  wherein the fitment has an extended diameter or includes an extended diameter portion. 
     
     
         15 . The system of  claim 1  wherein the at least one pouch has a flat bottom. 
     
     
         16 . The system of  claim 1  wherein the at least one pouch includes one or more tapered seam portions. 
     
     
         17 . The system of  claim 1  wherein the pressurizable chamber sealable opening is at an end of the chamber and wherein a cap engages with the sealable opening to form a pressure resistant cap seal. 
     
     
         18 . The system of  claim 17  wherein the cap is a two part cap including a first cap portion and a second cap portion. 
     
     
         19 . The system of  claim 18  wherein the first cap portion engages with the valve assembly fitment to form the pressure resistant pouch seal and the second cap portion engaged with the container sealable opening to form the pressure resistant cap seal. 
     
     
         20 . The system of  claim 19  wherein the first cap portion and second cap portion move independently. 
     
     
         21 . The system of  claim 1  wherein the valve assembly includes at least one lateral flow channel. 
     
     
         22 . A propellantless aerosol fluid dispensing system comprising:
 a container having a pressurizable chamber and a second chamber, the pressurizable chamber and the second chamber separated by a wall, the pressurizable chamber including a sealable opening at one end of the pressurizable chamber;   a cap associated with the pressurizable chamber open end, wherein the union of the cap with the pressurizable chamber open ends forms a pressure resistant cap seal and wherein the cap includes an aperture;   a pressurizing means located in the second chamber for intermittently or continuously pressurizing the pressurizable chamber;   a pressure-collapsible pouch located in the pressurizable chamber, the pouch containing a dispensable fluid material and an opening;   a valve assembly including the combination of a fitment, a valve and a nozzle wherein the fitment is located in the pressure-collapsible pouch opening such that the pressure-collapsible pouch opening is sealed to the fitment, the pouch being oriented in the pressurizable chamber such that one or more of the valve and nozzle extends beyond the pressure-collapsible pouch; and   a pressure resistant pouch seal formed by the combination of the fitment and cap aperture.   
     
     
         23 . The system of  claim 22  wherein the wherein the pressurizing means is a battery operated compressor and includes a load cell for monitoring the pressure of pressurizable chamber wherein the compressor is activated and deactivated based upon load cell pressure readings. 
     
     
         24 . The system of  claim 22  wherein the cap is a two part cap including a first cap portion and a second cap portion. 
     
     
         25 . The system of  claim 18  wherein the first cap portion engages with the valve assembly fitment to form the pressure resistant pouch seal and the second cap portion engaged with the container sealable opening to form the pressure resistant cap seal. 
     
     
         26 - 47 . (canceled)