Self-cleaning nozzle assembly for a paint spray gun

摘要

A paint spray gun nozzle assembly (1) has a nozzle (2) having an orifice (23) for the ejection of fluid. A plunger (5) slides out of and into the nozzle orifice (23) respectively to open the nozzle orifice, to allow fluid to eject from the nozzle, and to close the nozzle orifice, and to expel fluid remaining in the nozzle orifice. The paint spray gun has an outer cover (92) through which the nozzle tip (2) projects when the nozzle assembly is fitted to a paint container (90). When the gun is operated, the container (90) pushes the nozzle assembly forward causing pins (59) on the plunger (5) to strike the shoulder (95) of the cover (92). This arrests the forward movement of the plunger and causes the needle (51) to be withdrawn from the nozzle orifice (23). IMAGE