Patent ID: 7201336

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 horns projecting past the outlet end of the nozzle on opposite sides of said axis, said body assembly having a second air passageway extending from an inlet end through portions of said horns 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 and apertures being non-circular and shaped to direct air under greater than atmospheric pressure flowing through said second air passageway against opposite sides of a generally conical stream of liquid formed by air flowing through the first air passageway to reshape the generally conical stream of liquid into a wide elongate stream, said body assembly including a polymeric air cap portion having said horns and means mounting said polymeric air cap portion on said nozzle portion, said air cap portion and nozzle portion having surfaces forming said first and second air passageways, said polymeric air cap portion being a molding including molded surfaces defining said non circular outlet passageways and apertures.