Patent ID: 7731106

Claim:
A gas-compression spray device comprising: a disposable nozzle assembly, said assembly comprising: an outer shell cap having an interior and exterior surface and an axial opening for passage of liquid and compressed gas; a fluid orifice located within the interior of said cap, said orifice having a forwardly projecting centrally located axially elongated tip with an axial opening for passage of liquid, and one or more circumferential openings for passage of compressed gas; an air plate located within the interior of said cap, said air plate having a centrally located axial opening aligned with the axial opening of the fluid orifice; and one or more rearwardly projecting circumferentially located tubes having an axial opening for passage of compressed gas; a cup port plate at least partially located within the interior of said cap, said cup port plate having a centrally located forwardly projecting tube having an axial opening for passage of liquid, said tube having an side port perpendicular to said tube and having an opening in communication with said axial opening, said cup port plate having one or more circumferentially located holes corresponding to each of the tubes of the air plate; a medium container removably attached to the cup port plate; and a needle with a forward portion and a rearward portion, said forward portion having a tip located within the axial opening of the elongated tip of the fluid orifice, said rearward portion having a means for preventing the rearward flow of liquid through the cup port plate, and a means for reversibly engaging a trigger means within the spray device; and an air brush body, said body comprising: a needle retractor having a forward portion and a rearward portion, said forward portion removably attachable to the rearward portion of said needle; a trigger for controlling the flow of liquid through said device, said trigger being attached to the rearward portion of said needle retractor; and a means for controlling the flow of gas through said device; and a double-independent control means for controlling flow of compressed gas and liquid, whereby movement of said trigger in an axial direction reversibly controls flow of liquid, and movement of said trigger in a direction perpendicular thereto controls flow of compressed gas.