Spray apparatus for mixing, atomizing and spraying foam forming components

摘要

Spray apparatus for mixing, atomizing and spraying foam forming components has a hollow wand of extensive length that is adapted to be connected at one end to a conventional mixhead and has mounted therein a static mixing element that extends the length of the wand. A nozzle having a singular central orifice through its tip is mounted on the distal end of the wand and houses a floating core. The core has a convex end facing the orifice and is contactible thereabout with an interior side of the nozzle tip. The mixing element has a spiral shape that operates to incite turbulence and thereby enhance mixing of the foam forming components passing through the wand from the mixhead. The core has a peripheral surface that converges in the direction of the orifice and angled channels in this surface separate the mixed components into streams directed toward the orifice and together with the orifice atomize the mixed components and cause the discharge thereof in a uniform atomized cone-shaped spray pattern.