Combination high pressure venturi and spray forming nozzle

Claim 1

Apparatus comprising: a. a body defining a fluid passageway therethrough and including first and second members each having at least one generally planar surface and a third member having a generally planar shape positioned in a fixed removeable relationship between said planar surfaces contiguous therewith, said third member having a recess theRein extending generally longitudinally from one edge thereof inwardly in the shape of a venturi; b. first inlet means in said body suitable for introducing a flow of pressurized carrier fluid into said fluid passageway; c. venturi-aspirator means interchangeably positioned within said fluid passageway and at least partially defined by said venturi-shaped recess in said third body member; d. second inlet means in said body communicating with the throat of said venturi-aspirator and connectable to a source of fluid product for injecting said product into said carrier fluid upon passage of said carrier fluid through said venturi-aspirator; e. outlet means positioned in said fluid passageway downstream of said venturi-aspirator means for freely exhausting the flow of combined carrier fluid and product fluid; and f. said venturi-aspirator means provides a spray pattern to the fluid freely exhausted through said outlet means with the occurrence of a single fluid pressure drop.