Apparatus for dosing and forming soap foam

Abstract From the Canadian patent

An apparatus for forming lather or soap foam for washing and/or shaving purposes comprises an actuation lever which simultaneously serves to drive a piston a, liquid soap-dosing pump and a membrane pump for generating compressed air. By means of a perforated wall of a conduit or line the compressed air is blown into a dosed quantity of liquid soap located within a mixing chamber to thereby form a coarse bubble lather or soap foam which subsequently is blown through a porous body homogenized, and compacted. Different embodiments of the apparatus can be realized and it is particularly suitable for use as a foot actuated structure and for producing hot lather for shaving. A preferred …