A fluid dispensing device having a flexible fluid pouch and a dispensing assembly, the dispensing assembly having a top piece and a bottom piece, the top piece having a flexible actuator including a flexible dome and a flexible flange extension, the bottom piece having a bottom portion of a pump chamber, a pump chamber inlet, a chamber inlet valve, and a bottom portion of an outlet valve, the top piece and the bottom piece mated together to form a pump chamber and an outlet valve, the device configured to allow bidirectional fluid flow through either or both inlet and outlet valves, and to dispense a volume of fluid that is less than the volume of the pump chamber. The flexible pouch may have a single opening or two openings. In the case of a single opening, the entire dispensing assembly is in the interior of the pouch. In the case of two openings, only the flexible dome extends to the exterior of the pouch. The outlet valve is configured so that the more pressure that is applied to the flexible fluid pouch, the more tightly the outlet valve seals.

The invention relates to a free-jet dosing system for dosing a free fluid jet to be dispensed. The free-jet dosing system includes, inter alia, a pump including an inlet and an outlet and configured to deliver fluid to be dispensed to the outlet. The free-jet dosing system further includes a dosage monitoring device arranged on the outlet side of the pump, the dosage monitoring device having an opening through which at least some of the fluid to be dispensed may pass, and the dosage monitoring device having a flow rate meter configured to determine the flow rate of the fluid which passes through the opening of the dosage monitoring device. In the inventive free-jet dosing system, the opening of the dosage monitoring device is configured as an outlet nozzle for ejecting the free fluid jet.

The invention relates to a free-jet dosing system for dosing a free fluid jet to be dispensed. The free-jet dosing system includes, inter alia, a pump including an inlet and an outlet and configured to deliver fluid to be dispensed to the outlet. The free-jet dosing system further includes a dosage monitoring device arranged on the outlet side of the pump, the dosage monitoring device having an opening through which at least some of the fluid to be dispensed may pass, and the dosage monitoring device having a flow rate meter configured to determine the flow rate of the fluid which passes through the opening of the dosage monitoring device. In the inventive free-jet dosing system, the opening of the dosage monitoring device is configured as an outlet nozzle for ejecting the free fluid jet.

An apparatus for supplying a liquid medium to a metering unit comprises a housing in which media channels are arranged. One of the media channels is connected to a fluid reservoir that can be acted on by compressed air.

A pump for a vial intended to contain a cosmetic product includes a variable-volume dosing chamber defined at least partially by a deformable element. The pump operates by varying the volume of the chamber by elastic deformation of a membrane of the deformable element from an initial state wherein the chamber has a maximum volume to a deformed state wherein the volume of the chamber is minimal. The chamber is provided with a product inlet orifice and a product outlet orifice, and the pump includes deformation means of the membrane configured to exert pressure on the membrane. Finally, the pump includes means to purge the air from the chamber, that is activated when the membrane is in its deformed state, the purging means enabling the dosing chamber to communicate with the outside of the pump.

A pump for a vial intended to contain a cosmetic product includes a variable-volume dosing chamber defined at least partially by a deformable element. The pump operates by varying the volume of the chamber by elastic deformation of a membrane of the deformable element from an initial state wherein the chamber has a maximum volume to a deformed state wherein the volume of the chamber is minimal. The chamber is provided with a product inlet orifice and a product outlet orifice, and the pump includes deformation means of the membrane configured to exert pressure on the membrane. Finally, the pump includes means to purge the air from the chamber, that is activated when the membrane is in its deformed state, the purging means enabling the dosing chamber to communicate with the outside of the pump.

A dispensing device includes a nozzle, two containers and a regulation device. The containers each include a bottle and a pump unit. The bottle has a regulated unit. The regulated unit is disposed at the bottom of the bottle. The pump unit linearly, movably connects to the bottle. The pump unit is in communication with the nozzle. The pump unit provides a substance in the bottle to the nozzle. The regulation device rotatably connects to the regulated units of the two bottles or is positioned proximate to the regulated units of the two bottles. The regulation device is rotated such that the bottles vary in height relative to the regulation device. Therefore, the dispensing device provides two types of substances simultaneously and regulates a proportion of the provided substances.

A dispensing device includes a nozzle, two containers and a regulation device. The containers each include a bottle and a pump unit. The bottle has a regulated unit. The regulated unit is disposed at the bottom of the bottle. The pump unit linearly, movably connects to the bottle. The pump unit is in communication with the nozzle. The pump unit provides a substance in the bottle to the nozzle. The regulation device rotatably connects to the regulated units of the two bottles or is positioned proximate to the regulated units of the two bottles. The regulation device is rotated such that the bottles vary in height relative to the regulation device. Therefore, the dispensing device provides two types of substances simultaneously and regulates a proportion of the provided substances.

A microstructured fluid flow control device includes a substrate with a piezo-actuated first membrane arranged on a first substrate side, and a fluid channel that extends through the substrate between the first substrate side and an opposite second substrate side. In addition, the microstructured fluid flow control device includes a microvalve that extends through the fluid channel and is configured to close the fluid channel in an unactuated state, and a second membrane arranged on the first substrate side and spaced apart from the membrane and arranged between the fluid channel and the first piezo-actuated membrane. The second membrane is joined to the microvalve and is mechanically biased towards the first membrane so that a biasing force is applied to the microvalve, wherein the biasing force is part of a restoring force that causes the microvalve to close the fluid channel in an unactuated state.

A microstructured fluid flow control device includes a substrate with a piezo-actuated first membrane arranged on a first substrate side, and a fluid channel that extends through the substrate between the first substrate side and an opposite second substrate side. In addition, the microstructured fluid flow control device includes a microvalve that extends through the fluid channel and is configured to close the fluid channel in an unactuated state, and a second membrane arranged on the first substrate side and spaced apart from the membrane and arranged between the fluid channel and the first piezo-actuated membrane. The second membrane is joined to the microvalve and is mechanically biased towards the first membrane so that a biasing force is applied to the microvalve, wherein the biasing force is part of a restoring force that causes the microvalve to close the fluid channel in an unactuated state.