Patent ID: 8919745

Claim:
A foam generating apparatus, comprising: a. an entry chamber comprising a first entry chamber diameter and a second entry chamber diameter, wherein the second entry chamber diameter is wider than the first entry chamber diameter; b. an exit chamber comprising a first exit chamber diameter and a second exit chamber diameter, wherein the second exit chamber diameter is wider than the first exit chamber diameter; c. an air manifold separating the entry and exit chamber, comprising: i. a back air manifold face adjacent the second entry chamber diameter; ii. a front air manifold face adjacent to the second exit chamber diameter, wherein the front and back air manifold faces connect to form a hollow air chamber therebetween enclosed at a periphery of the air manifold; iii. an air inlet connected to the hollow air chamber; iv. a plurality of liquid passages passing through the front and back air manifold faces whereby liquid may pass from the entry chamber into the exit chamber without entering the air manifold, to result in a plurality of liquid streams in the exit chamber; and v. a plurality of air apertures positioned around and between the plurality of liquid passages to inject air around and between the plurality of liquid passages; d. a source of pressurized liquid connected to the entry chamber; e. a liquid valve positioned to control a flow of liquid from the source of pressurized liquid into the entry chamber; f. a source of pressurized gas connected to the air inlet; and g. an air valve positioned to control a flow of gas from the source of pressurized gas to the air inlet.