Foam dispenser nozzle

摘要

A chemical mixing device. The device includes a flow generator operative to provide at least two streams of chemicals and a mixing chamber, including at least two inlets adapted to receive the at least two streams of chemicals and an outlet through which a mixture of the streams of chemicals is ejected from the mixing device. The mixing chamber has an open state in which the chemicals are mixed and a closed state in which the volume of the mixing chamber is less than a fifth of the open state volume.

主权项

1. A foam dispensing device, comprising:
two input tubes, each input tube receiving a different chemical; a mixing chamber having at least one elastic wall; and a flow generator adapted to induce flow of the chemicals received from the input tubes into the mixing chamber, wherein the mixing chamber has a first substantially zero volume corresponding to a closed state, and a second larger volume corresponding to an open state in which the flow of chemicals is mixed when the flow generator induces the flow of chemicals into the mixing chamber, and wherein the mixing chamber remains in the closed state in absence of the flow of chemicals.