Handheld liquid spray gun

A spray gun comprising:

• a housing comprising a barrel and a handle disposed in angular relation to the barrel;
• an orifice member defining a discharge orifice adjacent a downstream end of said barrel;
• said barrel having a liquid supply conduit for directing liquid from a liquid supply to said discharge orifice;
• a valve stem disposed within said barrel liquid supply conduit for relative movement between discharge orifice opening and closing positions;
• a magnet assembly mounted on an upstream end of said barrel liquid supply conduit including a pair of magnets with common polarities of the magnets disposed in opposed relation to each other for creating a repelling magnetic force between the magnets for biasing said valve stem to said discharge orifice closing position;
• a trigger pivotally mounted on said housing;
• actuating linkage for transferring pivotal motion of the trigger into translational movement of the valve stem for retracting the valve stem against the repelling magnetic force of the magnets to a position opening said discharge orifice and enabling the flow of liquid through said liquid supply conduit for discharge from said discharge orifice;
• and
• said repelling magnetic force of said magnets being effective for urging said valve stem to said discharge orifice closing position upon release of said trigger.