Patent ID: 7878425

Claim:
A liquid supply attachment for a spray gun, comprising: (a) a rigid cup member having a generally cylindrical sidewall, a closed bottom and an open top defining a chamber for containing a liquid to be sprayed; (b) a generally circular cover member adapted to be secured to the open top, the cover member including an aperture therethrough; (c) a rigid tube fitted into the aperture in the cover and extending downwardly toward the closed bottom of the cup; (d) a plunger member slidably disposed on the rigid tube and engaging the cylindrical sidewall at a location beneath the cover member; and (e) an adapter for mating with a spray gun, the adapter being attached to the cover member and having a first bore aligned with a lumen of the rigid tube, and a second bore in fluid communication with an upper surface of the plunger member whereby the application of air, under pressure, to the second bore causes downward displacement of the plunger member within the chamber and attendant upward displacement of liquid to be sprayed contained in the chamber through the lumen of the rigid tube and the first bore of the adapter.