Patent ID: 6892905

Claim:
A dose-measuring device for insertion into a container, the device comprising: a first metering compartment that is arranged for filling with a predetermined volume of liquid when the device is inserted into a container and the container is upturned from a vertical position; and a second reserve compartment communicating with an outlet orifice of the device and with said first metering compartment so as to receive the volume of the liquid contained in said first metering compartment when the container is returned to the vertical position, said second reserve compartment comprising, an outer tubular element adapted to fit in a neck of the container and that is closed at its lower end and open at its upper end, an opening in a lateral wall of said second reserve compartment close to an upper end thereof and opening to said first metering compartment, a first air evacuation orifice defining a level of filling of said first metering compartment and that is through a wall of said outer tubular element, and an inner tubular element nested in a sealed manner in said outer tubular element, said inner tubular element comprising an upper end part forming a pourer, an intermediate body defining an interior part of said first metering compartment, and a lower end part forming a transfer conduit extending downwardly and opening, at its upper end, in said first metering compartment and, at its lower end, in said second reserve compartment, said intermediate body having, at its lower end, a skirt with a cylindrical lateral wall applied in sealed manner against an inner surface of said outer tubular element, and an upper wall in which is formed said upper end of said transfer conduit.