Patent ID: 8757516

Claim:
A hand held self contained airbrush system comprising: a housing; a liquid cartridge assembly contained within the housing said liquid cartridge assembly comprises: a liquid reservoir pouch and a flow check valve assembly for preventing liquid contained in the pouch from drying when not in use, wherein the flow check valve assembly further comprises: a valve outer cover having one end in permanent connection with the liquid reservoir pouch and an upper end; a ball bearing positioned in contact with the upper end of the valve outer cover; a spring 36 having one end in contact with the ball bearing and an opposing end; and an inner surface housing retaining said ball bearing and spring in positioned against said valve outer cover; said spring and said ball bearing cooperating to provide an air-tight seal to the reservoir pouch when not connected to the housing; a diaphragm pump configured to generate air and being in communication with the housing to provide air into a nozzle spraying chamber; and a spray nozzle assembly configured to attach to the nozzle spraying chamber, the spray nozzle assembly having a liquid path centrally disposed there through, and an air passage way configured annularly around the liquid path such that the liquid and air meet at a tip of a spray nozzle assembly.