Vorrichtung zur Ausgabe von Aerosolen mit getrennten Phasen

摘要

An aerosol dispenser of the type in which the propellant and the product to be dispensed are kept separate until dispensed. The dispenser has an outer container with a valve means on said outer container. A propellant cartridge is provided in said outer container and is coupled to said valve means. At least one fluid tight flexible sac is provided in said outer container and contains the product to be dispensed in a fluid condition, and means is provided coupling said sac to said valve means for aspirating the contents of the sac when the valve means is opened to allow propellant to flow from said propellant cartridge. The sac collapses due to the atmospheric pressure around it as the contents are aspirated.