Aerosol dispenser and method

An aerosol foam dispenser comprising:

• a container having an internal chamber for storing a propellant and at least one first component to be dispensed therefrom, normally closed valve means mounted on said container to retain the propellant and component in said chamber, said valve means being moveable to an open position to dispense foam to a desired location, filter means mounted on said valve means to prevent foreign particles from entering the valve means, frangible ampule means located within said chamber containing a second component that is separated from the first component within the chamber until said ampule means is broken, means holding the ampule in said chamber generally along the length of said chamber, and rod means mounted on said valve means engageable with said means for holding the ampule means, said filter means having a hole accommodating said rod means whereby said rod means extends through said filter means toward said ampule means, said rod means on first movement of the valve means to the open position engages said ampule means to break said ampule means thereby releasing the second component into said chamber whereby the first and second components are mixed together.

An aerosol foam dispenser comprising:

• a container having an internal chamber for storing a propellant and a first material, normally closed valve means mounted on said container to retain the propellant and first material in said chamber, said valve means being moveable to an open position to dispense foam to a desired location, at least one frangible ampule means located in the chamber containing a second material separate from the first material, means holding the ampule means in said chamber generally along the length of the chamber, rod means engageable with the valve means and said means for holding the ampule means, said rod means having an end portion movable between said means for holding the ampule means and the ampule means operable to break said ampule means when the valve means is first moved to the open position thereby releasing the second material into said chamber whereby the first and second materials are mixed together.

An aerosol dispenser comprising:

• a container having an internal chamber for storing a propellant and at least one first component to be sprayed therefrom, normally closed valve means mounted on said container to retain the propellant and component in said chamber, said valve means being moveable to an open position to dispense aerosol to a desired location, filter means mounted on the valve means to prevent foreign particles from flowing into the valve means, frangible ampule means located within said chamber containing a second component that is separated from the first component within the chamber until said ampule means is broken, means for holding the ampule means in said chamber, means mounted on said valve means extended through the filter means and engageable with said ampule means to break said ampule means when the valve means is first moved to the open position thereby releasing the second component into said chamber whereby the first and second components are mixed together, said valve means having a tubular stem with an outlet passage for the propellant and materials in the chamber of the container, and means mounted on the stem for closing the outlet passage for preventing the dispensing of propellant and materials when the valve means is first moved to the open position to break the ampule means.

A method of storing and subsequently dispensing a mousse hair care composition having at least two parts from a container having a chamber, an open end closed with a valve having a movable valving member normally located in a closed position, comprising:

• storing one part of the hair care composition in the enclosed chamber of said container, subjecting said one part of the hair care composition to pressure of a propellant, storing the other part of the hair care composition in a frangible vessel located in said enclosed chamber, breaking said frangible vessel within said enclosed chamber without allowing the one part of the hair care composition to escape from the chamber by moving the valving member from the closed position to the open position, preventing the hair care composition and propellant from escaping from the chamber through the open valve, mixing the one part and other part of the hair care composition in said enclosed chamber, and moving the valving member from the closed position to the open position to dispense said mixed parts of the hair care composition and propellant as a mousse to a desired location.