Device for mixing at least two constituents

A mixing apparatus for mixing at least two ingredients coming from at least a first reservoir and a second reservoir distinct from said first reservoir, said mixing apparatus comprising at least one first orifice suitable for being connected to said first reservoir, and at least one second orifice distinct from said first orifice and suitable for being connected to said second reservoir, and a motor-driven pump, said mixing apparatus being characterized in that it includes a fluid-connection selector connected to said pump and including a network of channels, said fluid-connection selector being provided with at least:

• a stationary portion including at least a portion of said network of channels opening out at least via said first orifice and via said second orifice;
• a moving portion including at least one other portion of said network of channels and mounted to move between a plurality of positions including at least:
• a first position in which said network of channels puts said at least one first orifice and said at least one second orifice into communication with said pump so as to make it possible, by means of said pump, to transfer at least one ingredient from said first orifice towards said second orifice via said pump;
• and
• a second position in which said network of channels puts said second orifice into communication with said pump so as to make it possible, by means of said pump, to blend the resulting mixture by causing it to flow through said network of channels.