Spherical articles such as breath mints are released one at a time from a
container by depressing a button, which simultaneously opens a first flow
regulator and closes a second flow regulator in series with the first.
When the button is released, the first flow regulator opens and the
second flow regulator closes. The first flow regulator is preferably a
pair of opposed weirs, and the second flow regulator is preferably a pair
of parallel pillars.