Portable dispenser for packaging and dispensing colored cosmetics

A dispenser, comprising:

• at least two containers filled with substances of different colors;
• a mixing chamber secured to the containers and into which the substances contained in the containers can be dispensed in proportions selected by a user and in which the substances can be mixed together in order to form a cosmetic composition, wherein the mixing chamber is of a variable volume so as to, in response to a decrease of the volume, dispense the resulting mixture contained in the mixing chamber;
• and
• at least one stirrer that is movable in the mixing chamber.

A dispenser, comprising:

• at least two containers filled with substances of different colors;
• a mixing chamber into which the substances contained in the containers can be dispensed in proportions selected by a user and in which the substances can be mixed together in order to form a cosmetic composition, wherein the mixing chamber is of a variable volume so as to, in response to a decrease of said volume, dispense the resulting mixture contained in the mixing chamber;
• wherein the resulting mixture is sealingly contained in the mixing chamber from the beginning of filling the mixing chamber until dispensing of the resulting mixture;
• and
• at least one stirrer that is movable in the mixing chamber.

A dispenser comprising:

• at least two containers filled with substances of different colors;
• a mixing chamber into which the substances contained in the containers are dispensed and in which the substances can be mixed together;
• at least one stirrer that is movable in said mixing chamber;
• a piston that is movable within the mixing chamber to vary the volume of said mixing chamber;
• wherein the piston is provided with a first fastener;
• and
• wherein the stirrer is provided with a second fastener capable of co-operating with the first fastener to enable the stirrer and the piston to be coupled together after the substances dispensed in the mixing chamber have been mixed together, and to enable the stirrer to drive the piston to distribute the mixture.

A dispenser comprising:

• at least two containers filled with substances of different colors;
• a mixing chamber into which the substances contained in the containers are dispensed and in which the substances can be mixed together;
• at least one stirrer that is movable in the mixing chamber;
• a selector having at least one channel, the selector being capable of taking up a first position in which the mixing chamber communicates through the channel with one of the containers, and a second position in which the mixing chamber communicates through the channel with another one of the containers, and a third position in which the mixing chamber is isolated from the containers, the first, second and third positions being selected by the user;
• and
• wherein the mixing chamber is permanently in communication with a dispenser endpiece, the dispenser endpiece being fitted with a valve which opens only when dispensing the resulting mixture contained in the mixing chamber and the selector is in the third position.

A dispenser comprising:

• at least two containers filled with substances of different colors;
• a mixing chamber into which the substances contained in the containers are dispensed and in which the substances can be mixed together;
• at least one stirrer that is movable in the mixing chamber;
• wherein the containers and the mixing chamber are situated in a body that is made, at least in part, of a transparent material;
• wherein the containers and the mixing chamber are situated in a housing;
• wherein the housing is closed at its top end by a cover;
• and
• wherein the cover is capable of turning relative to the housing.

A dispenser comprising:

• at least two containers filled with substances of different colors;
• a mixing chamber into which the substances contained in the containers are dispensed and in which the substances can be mixed together;
• at least one stirrer that is movable in the mixing chamber;
• and
• wherein the mixing chamber is defined by a dispenser head slidably mounted relative to a piston, the piston being engaged within the dispenser head, the piston being in a fixed position relative to the containers.

A dispenser comprising:

• at least two containers filled with substances of different colors;
• a mixing chamber into which the substances contained in the containers are dispensed and in which the substances can be mixed together;
• at least one stirrer that is movable in the mixing chamber;
• wherein each of the containers contains a piston that is prevented from moving by friction forces, the friction forces being sufficient to ensure that each piston does not move in the associated container when dispensing the resulting mixture contained in the mixing chamber;
• and
• a pressurization member comprising a bellows connected to the containers, the pressurization member being actuated for establishing excess pressure on outside faces of the pistons contained in the containers, to force the outside faces to advance.

A dispenser comprising:

• at least two containers filled with substances of different colors;
• a mixing chamber into which the substances contained in the containers are dispensed and in which the substances can be mixed together;
• at least one stirrer that is movable in the mixing chamber;
• wherein each of the containers contains a piston that is prevented from moving by friction forces, the friction forces being sufficient to ensure that each piston does not move in the associated container when dispensing the resulting mixture contained in the mixing chamber;
• a pressurization member connected to the containers, the pressurization member being actuated to establish excess pressure on outside faces of the pistons contained in the containers, so as to force the outside faces to advance;
• and
• a flow restrictor member enabling adjustable head loss to be inserted between the pressurization member and the outside face of one of the pistons so as to modify the rate of advance of said one of the pistons inside the container when the pressurization member is actuated.

A portable dispenser comprising:

• at least two containers filled with substances of different colors, at least one of the containers having a lower portion;
• a mixing chamber into which the substances contained in the containers are dispensed and in which the substances can be mixed together in order to form a cosmetic composition;
• and
• at least one stirrer that is movable in the mixing chamber;
• wherein the mixing chamber has at least one portion situated above the lower portion at least during the filling of the mixing chamber.