Dispensing device for dispensing a liquid gas formulation in a metered manner and method for producing the dispensing device

A device for dispensing a liquid gas formulation in a metered manner with a pressure-stable container with a flanged rim, on which a valve cover containing a dispensing valve is tightly fastened, the container being equipped with two separate chambers, one of which receives the liquid gas formulation and communicates with the dispensing valve and the other of which contains a pressurized propellant, characterized in that provided in the container is a piston which can be moved in a substantially sealing manner and divides the container into the two chambers, in that the propellant is compressed air in combination with a comparatively small amount of liquid gas formulation, in that the flanged rim of the container is formed as an inner flanging, and in that the piston is formed such that it makes it possible for liquid gas formulation to flow over between the chambers, in the direction from the chamber containing the liquid gas formulation into the chamber containing the propellant,

• wherein at least one of:
• (i) the device is configured such that the liquid gas formulation flows over from the chamber containing the liquid gas formulation into the chamber containing the propellant of the container upon an expansion of the liquid gas formulation by about 7% relative to that at which would be the case at room temperature when the piston is located such that the volume of the chamber containing the pressurized propellant is at its minimum and the volume of the chamber containing the liquid gas formulation is at its maximum,
• or
• (ii) the device includes about 92 percent by mass of the liquid gas formulation of the device being located in the chamber containing the liquid gas formulation and about 8% by mass of the liquid gas formulation of the device being located in the chamber containing the pressurized propellant, and wherein the liquid gas formulation is a pressurized combustible liquid.