Abstract: There is disclosed an orifice tip which has a cylindrical base with an asymmetric head, preferably in the shape of a single upstanding elongated rib which is centrally located on the cylindrical base. The rib has tapered side walls with an arcuate, convex edge that has a transverse V-groove. The V-groove intersects a central passageway through the orifice tip, thereby providing a spray eyelet which is precisely oriented to the V-groove. The orifice tip is mounted in a holder having a transverse bore that terminates in an asymmetric receptacle in the form of an elongated slot which receives the elongated rib of the orifice tip, thereby precisely orienting the orifice tip in the holder. The orifice tip is particularly advantageous as it can be assembled to its holder with automated equipment.

Abstract: There is disclosed an improved spray tip for airless spraying of liquids in which the spray orifice is mounted in a rotatable turret member which is captured in a subassembly of a plastic spray guard and a tubular metal housing. The housing has a longitudinal through passageway which receives a floating piston seal member that has a forward, cylindrically concave face which is urged into a tight seal against the rotatable turret member by the liquid pressure which acts on the upstream face of the floating piston seal member. The floating piston seal member is sealed in the longitudinal through passageway by an annular seal which also restrains the turret member against rotation when the liquid pressure is released, thereby freely permitting substitution of spray orifices by interchanging of turret members.

Abstract: There is disclosed an improved spray tip particularly suited for airless pressured spraying utilizing a spray orifice member in a removable turret member that can be rotated to reverse the orifice for cleaning. The design permits rapid exchange of the turret member, permitting quick substitution of different sized orifice members. The turret member is sealed in the assembly with a thin plastic seal and a seal support which is compressed in the assembly by hand tightening. The seal and seal support are restrained in the spray tip against dislodgement during removal of the turret member. A tee seal is provided which has a flange of reduced diameter which seats against the end of the spray gun to insure complete sealing with hand tightening of the retainer nut. The spray tip also includes a low friction bearing washer between its housing and retaining nut which, in cooperation with the tee seal, permits rotation of the spray tip without loosening its retainer nut.

Abstract: There is disclosed an improved spray tip particularly suited for airless pressured spraying utilizing a spray orifice member in a removable turret member that can be rotated to reverse the orifice for cleaning. The design permits rapid exchange of the turret member permitting quick substitution of different sized orifice members. The turret member is sealed in the assembly with a thin plastic seal and a seal support which is compressed in the assembly by hand tightening. The seal and seal support are restrained in the spray tip against dislodgement during removal of the turret member. A tee seal is provided which has a flange of reduced diameter which seats against the end of the spray gun to insure complete sealing with hand tightening of the retainer nut. The spray tip also includes a low friction bearing washer between its housing and retaining nut which in cooperation with the tee seal permits rotation of the spray tip without loosening its retainer nut.

Abstract: There is disclosed an improved spray tip particularly suited for airless pressured spraying utilizing a spray orifice member in a removeable turret member that can be rotated to reverse the orifice for cleaning. The design overcomes difficulties with prior art spray tips of this construction by the use of a thin resilient seal which is located between the turret member and a seal support which is compressed in the assembly. The use of the thin seal achieves a fluid tight seal that prevents leaking even of low viscosity liquids while avoiding the seizure problems which have characterized plastic seals of prior devices. The turret member is removeable without disassembly of the spray tip or its guard, thereby permitting facile interchanging of turret members with differently sized orifices.

Abstract: The invention is an adjustable spray nozzle useful in airless liquid spraying. The spray nozzle uses interchangeable spray orifice members which discharge against the beveled end of a cylindrical splash pin. The orifice member lines the cylindrical bore which receives the splash pin and the latter is axially adjustable in the spray nozzle body to permit an adjustably variable opening of the orifice, thereby permitting infinite adjustment of the volume of liquid and the area of the fan spray produced by the spray nozzle. The interchangeability of the orifice members provides a wide range of adjustability since interchangeable orifice members of varied orifice diameters can be readily substituted in the spray nozzle.1. Field of InventionThis invention relates to a spray nozzle and, in particular, relates to an adjustable spray nozzle useful in airless spraying of liquids such as paint.2.