AIR ASPIRATING FOAM NOZZLE

A foam generating nozzle is disclosed comprising a cylindrical housing, a first inlet at one end of the housing for connection to a supply of foamable liquid un der pressure, a second inlet at the first end for air supply, a foam discharge outle t at the other end of the housing, a diffuser associated with the first inlet and a conical scr een of a non-corrosive material disposed in said housing between the ends with its apex d irected toward the discharge outlet, to provide a screen surface area larger than the in let air supply area, such that in operation the foamable liquid is sprayed onto the scre en by the diffuser in a pattern which matches the conical shape of the screen, while air i s dragged through the screen thereby generating the foam.