Patent ID: 6971590

Claim:
A liquid spray gun comprising a body assembly including a nozzle portion with an outlet end, said nozzle portion having a liquid passageway extending from an inlet end to an outlet end opening through the outlet end of the nozzle portion, said body assembly having a first air passageway extending from an inlet end to an outlet end at the outlet end of said nozzle portion, said outlet end of said first air passageway extending around said outlet end of said liquid outlet passageway and being shaped to direct air under greater than atmospheric pressure against liquid flowing out of the outlet end of the liquid outlet passageway to propel the liquid away from the outlet end of the nozzle portion while shaping the liquid into a generally conical stream about an axis, said body assembly including a air cap portion having two spaced horns and means mounting said air cap portion on said nozzle portion with said horns projecting past the outlet end of the nozzle portion on opposite sides of said axis, said body assembly having a second air passageway extending from an inlet end to outlet passageways having outlet apertures spaced along said horns from the outlet end of the nozzle and facing opposite sides of said axis, said outlet passageways directing air under greater than atmospheric pressure flowing through said second air passageway against opposite sides of a stream of liquid formed by air flowing through the first air passageway to reshape stream of liquid into a wide elongate stream; said means mounting said air cap portion on said nozzle portion allowing rotation of said air cap portion about said axis relative to said nozzle portion, said air cap and nozzle portions include stops limiting relative rotation of said air cap portion relative to said nozzle portion to rotation through a predetermined angle between first and second relative positions, and said means mounting said air cap portion on said nozzle portion including surfaces in frictional engagement to restrict relative rotation of said air cap and nozzle portions until a predetermined torque is manually applied between said air cap and nozzle portions.