Exemplary foam-at-a-distance systems include a spout, a container, and a foam generator having a suck-back mechanism located within the spout. The system includes a liquid pump chamber, an air pump chamber, a liquid conduit and an air conduit. The foam generator has a differential bore housing. The differential bore housing has a first portion with a first inside bore and a second portion with a second inside bore, wherein the first inside bore has a smaller diameter than the second inside bore. A piston having a seal extending from the piston that is in contact with the second inside bore is also included. A mixing chamber is located in the large bore. Movement of the seal in an upstream direction provides negative pressure in the second mixing chamber and draws in fluid from the outlet.

A sealing vent for a foaming dispenser associated with a squeeze foaming container is described. The vent has an annular structure, with a central aperture encased by a multi-tiered disc section connected to inner facing of a thickened, axial wall. An upward angled, outer flange is connected on an outer facing of the axial wall, and the outer flange is attached at a lower elevation along the axial wall in comparison to the disc section.

A foam dispenser includes a dispensing a mixing chamber for receiving liquid from a liquid source and air from an air source, a conduit, and an agitator downstream of the mixing chamber in the conduit.

An exemplary foam dispensing system includes a dispenser housing configured to be mounted below a counter, a spout configured to be mounted above a counter, a container supported by the dispenser housing, a pump in fluid communications with the container and configured to be mounted below a counter. The pump includes an air pump portion and a liquid pump portion. The pump also includes a mixing chamber. Liquid pumped from the liquid pump portion is mixed with air pumped from the air pump portion in the mixing chamber. A dispense tube is included that is configured to extend from the mixing chamber below a countertop to one or more mix media located above the countertop proximate an end of the spout. The one or more mix media are located near an end of the spout. An outlet nozzle is also provided and is located downstream of the one or more mix media.

A foaming dispenser has a mixing chamber configured to mix a liquid and a gas to foam the liquid, a first liquid passage configured to supply the liquid to the mixing chamber, and a discharge opening configured to discharge the foamed liquid, the mixing chamber includes a plurality of second liquid passages branching and extending from the first liquid passage, a liquid passage meeting where one second liquid passage meets another second liquid passage, a gas passage configured to supply the gas to the liquid flowing from the plurality of second liquid passages to the liquid passage meeting, and a hole that is provided on a downstream side of the gas passage and communicates with the discharge opening.

A fluid dispenser having a pump mechanism that dispenses a dose of fluid when a movable pump member of the pump mechanism is moved between an extended position and a retracted position. A pump engagement body engages with the movable pump member for effecting movement of the movable pump member. A first cam surface and a second cam surface are connected to the pump engagement body, at least one of the first cam surface and the second cam surface comprising an adjustable cam surface whose location relative to the pump engagement body is selectively adjustable. A camming body engages with the first cam surface and the second cam surface to effect movement of the pump engagement body, and a dose adjustment mechanism allows the location of the adjustable cam surface relative to the pump engagement body to be selected.

The present invention is a device for dispensing a mixture consisting of a first fluid and a second fluid, suited to be applied to a container holding said fluids. The device comprises a mixing chamber for said fluids, a suction tube suited to draw the second fluid in order to convey it into the mixing chamber and a tank-chamber arranged between the suction tube and the mixing chamber. The device comprises deviation means suited to deviate a quantity of the first fluid coming from the suction tube towards the tank-chamber.

A foamer dispenser including a mesh filter that is disposed in a mixture flow path of a jet ring to allow a mixture to pass is provided. A connecting flow path area between a liquid flow path and the mixture flow path and a connecting flow path area between an ambient air flow path and the mixture flow path have the relation 2.8S.sub.1/S.sub.23.8, and/or, a smallest flow path area of the mixture flow path is located on an immediately upstream side of the mesh filter, and the smallest flow path area and a flow path area of the mesh filter have the relation 4S.sub.4/S.sub.310.3.

One aspect of the invention is a new foam which includes a liquid having a plurality of bubbles therein and a plurality of particles suspended therein. The foam is made in a dispenser that suspends the bubbles in the liquid. The liquid may be a single liquid with particles therein or may be made from two liquids which are mixed together. The particles may be such that, prior to foaming the particles sink, float or are suspended in the liquid.

The invention concerns a device (10) for dispensing a mixture (S) constituted by a first fluid (F1) and a second fluid (F2), suited to be applied to a container (C). The device comprises: an outlet duct (20) for the mixture (S); a reception and/or transit chamber (43); means (50, 60) for generating the mixture (S); first valve means comprising a first movable element (32); second valve means comprising a second movable element (32); third valve means comprising a third movable element (31a, 31b). Two among the first movable element (32), the second movable element (32) and the third movable element (31a, 31b) belong to a single valve element (30; 130). The invention concerns also a system for dispensing a mixture (S) constituted by a first fluid (F1) and a second fluid (F2) comprising a container (C) and a device (10) as described above.