Patent ID: 6840462

Claim:
In a detachable, throw away nozzle for use in an airless, liquid spray dispensing gun having a pair of valved openings through which pressurized liquids are dispensed, said nozzle having an inlet chamber section adjacent to and in sealing engagement with said valved openings, a mixing chamber section adjacent said inlet chamber and containing a static mixer therein, and a dispending tip adjacent said mixing chamber through which said liquids are dispensed from said nozzle, the improvement comprising: a) said dispensing tip, said mixing chamber and said inlet chamber extending along a longitudinal axis and generally symmetrical about said longitudinal axis; b) said dispensing tip defined by a longitudinally extending interior passage through which said liquids are dispensed, said tip passage having a generally circular entrance end at the intersection of said tip passage with said mixing chamber and a longitudinally opposite exit end having a rectangular dispensing opening defined by a pair of long side length edges joined at each end by a pair of short side width edges, said long side edges approximately equal to the diameter of said entrance end of said tip passage; c) said tip passage configured to generally maintain the outline of said rectangular dispensing tip opening through a substantial distance of the dispensing tip passage whereby the length edge distance of said rectangular opening is maintained generally constant throughout the substantial length of said dispensing tip while the passage substantially tapers to the width of said rectangular opening from said inlet end of said dispensing tip, said dispensing passage having a first surface adjacent and extending from said short side edges which is generally flat and a second surface extending from said long side edges which is generally curvilinear.