Dispensing head for an aerosol container

Claim 1

In an aerosol container having a discharge valve with a tubular stem movable between a closed extended position n and a depressed discharging position, a dispensing head attached at one end to said tubular stem and having an other free end formed with an annular chamber extending from said free end into said dispensing head and defining at said free end a central portion having an end face; passage means arranged eccentrically with respect to said central portion and providing communication between said tubular stem and said annular chamber; and a membrane extending over said chamber and said end face and being formed in the region of said end face with an opening having an inner edge, said membrane being attached in prestressed condition to said other free end so that said inner edge tightly engages said end face of said central portion, whereby upon movement of the tubular stem to its depressed discharging position by exerting pressure on said dispensing head, pressurized material will pass in a turbulent manner from said eccentrically arranged passage means into said annular chamber and outwardly deflect said membrane so as to be discharged through the gap forming between said inner edge and said end face, while upon release of said dispensing head said inner edge will reengage said end face to prevent air to enter into said annular chamber and said passage means.