Abstract: A vapor tap valve for aerosol containers is provided, for use with aerosol compositions containing liquefied flammable propellants, inhibiting delivery of flammable liquid propellant when the valve is opened in any orientation of the aerosol container, comprising, in combination, a delivery valve movable manually between open and closed positions and including a valve poppet, a valve stem, a valve stem passage, and a delivery port; bias means biasing the delivery valve towards a closed position; a blending space for mixing propellant and aerosol composition in fluid flow communication with the valve stem passage via the valve, the valve in the open position communicating the blending space with the valve stem passage, and in the closed position preventing such communication; a liquid tap orifice in the blending space; a gas tap orifice in the blending space; and a shut-off valve disposed in the valve poppet and responsive to orientation of the valve to move automatically between positions opening and closing

Abstract: A vapor tap valve for aerosol containers is provided, for use with aerosol compositions containing liquefied flammable propellants, inhibiting delivery of flammable liquid propellant when the valve is opened immediately after shaking the aerosol container and contents, comprising, in combination, a delivery valve movable manually between open and closed positions and including a valve stem, a delivery port, and a valve chamber; a bias spring in the valve chamber biasing the delivery valve towards a closed position; a liquid tap orifice in flow communication with the valve chamber; a vapor tap orifice in flow communication with the valve chamber; and a shut-off valve linked to and movable with the delivery valve, closing off the vapor tap orifice against entry of liquefied propellant therethrough into the valve chamber when the delivery valve is closed, and opening the vapor tap orifice when the delivery valve is manually moved to the open position, against the biasing force of the bias spring.

Abstract: An aerosol container is provided for foaming a liquid aerosol composition therein prior to expulsion from the container and then expelling the resulting foamed aerosol composition comprising at least two separate compartments in the container, of which a first compartment has a volume of at least 0.5 cc and is in direct flow connection with the valve passage, and a second compartment is in flow connection with the valve passage only via the first compartment; at least one first liquid tap orifice having a diameter within the range from about 0.012 to about 0.

Abstract: An aerosol container is provided for foaming a liquid aerosol composition therein prior to expulsion from the container and then expelling the resulting foamed aerosol composition comprising, in combination, a pressurizable container having a valve movable between open and closed positions, with a valve stem and a foam-conveying passage therethrough in flow connection with a delivery port; at least two separate compartments in the container, of which a first compartment is in direct flow connection with the valve passage, and a second compartment is in flow connection with the valve passage only via the first compartment; and a porous bubbler having through pores interposed between the first and second compartments with the through pores communicating the two compartments, the pores being of sufficiently small dimensions to restrict flow of propellant gas from the second compartment therethrough and form bubbles of such gas in liquid aerosol composition across the line of flow from the porous bubbler to the v