Aerosol package having compressed gas propellant and vapor tap of minute size

In an aerosol package comprising a container and a dispenser valve mounted on the container, the valve comprising a cylindrical body mounted upright at the center of the top of the container and having a bottom wall and a gasket at its upper end and a plunger in the body having a hollow stem passing up through the gasket and through the top of container and terminating in an actuator operable from the top of the container, a dip tube connected to and extending from the cylindrical body down in the container, the container being partly filled with liquid product and having thereabove an atmosphere of compressed gas selected from a group including carbon dioxide and nitrous oxide to propel the liquid up the dip tube and through the valve and out the actuator when the valve is open;

• the improvement of at least one vapor tap opening in the cylindrical body above the level of the liquid product whereby said compressed gas is free to flow through the vapor tap opening and through the dispenser valve when the valve is open, each vapor tap opening having a diameter in the range of only about 0.004 inch to only about 0.008 inch.