Abstract: A nozzle tip especially useful with airless sprayers is formed from a plurality of parts, all of which are fabricated from blanks of hard, wear-resistant materials such as ceramics or powdered metals. Exterior surface portions of the nozzle tip parts are final-formed during formation of the blanks, typically during a sintering operation. Mating interior surface portions of the nozzle tip parts, as well as a nozzle orifice portions, are formed quickly and inexpensively by machining. Principles of the invention are also applicable to spray nozzles of the electrostatic type. A thin, electrically conductive blade may be clamped between or among adjacent nozzle tip parts with a portion of the blade extending forwardly of the nozzle tip parts to charge liquid particles being sprayed.

Abstract: A high pressure spray gun for airless atomization of spray material comprising a safety head mounted on the spray nozzle. The safety head is formed with two parallel protector studs comprising two opposed ridges located transversely to the spray direction and forming a transverse gap through which the spray material has to pass. The ridges are each defined by one flat forwardly inclined surface on each stud and by a common cylindrical surface which forms a transverse part-cylindrical chamber in the safety head. The ridges are formed with opposed edges and prevent spray material from setting on the projector studs.

Abstract: An air atomizing liquid spray nozzle is characterized by a body having a generally elliptical outlet end defining a generally elliptical liquid outlet orifice and an air cap having a generally elliptical air outlet aperture concentric with and surrounding the elliptical outlet end of the body for causing a complementary annular elliptical pattern of compressed air to concentrically surround and impinge upon liquid flowing in an elliptical pattern from the outlet orifice and to directly atomize the liquid into a flat, fan-shaped spray pattern with reduced consumption of air and less noise than prior art nozzles.

Abstract: This pneumatic spray gun for atomizing paint comprises a flat-jet nozzle of the type utilized in hydrostatic atomization spray guns, this nozzle being surrounded by compressed-air jets disposed symmetrically and parallel to the flat jet of paint so as to envelope and drive same, other compressed-air jets being disposed symmetrically in a plane perpendicular to the flat jet of paint and converging thereagainst, whereby a satisfactory atomization is obtained which precludes not only the detrimental high pressure values of hydrostatic atomization, but also the considerable output of compressed air of conventional pneumatic atomization and the attendant losses of paint and other inconveniences deriving therefrom.

Abstract: An airblast atomizer with air swirl vanes has an outlet configured to produce a fuel/air mixture pattern from the fuel nozzle to match an annular combustion chamber formed between an annular inner combustor wall and an annular combustor wall having inlet ends thereof connected to an annular dome for supporting each of a plurality of the fuel nozzles; each of the nozzles including a pair of spaced, large radius slots in a cylindrical outlet wall of the nozzle operative to produce a vortex pattern that will spread the mixed fuel/air pattern from the nozzle to define the major axis of an elliptically formed fuel/air pattern from the nozzle and wherein the remainder of the airblast atomizer nozzle has a reduced radius to conform the fuel/air mixture to the diameter of an outlet swirl chamber from the nozzle to produce the minor axis of an elliptically configured fuel/air spray pattern and wherein the major axis is formed as a chordal line of the combustion chamber to conform the fuel/air mixture pattern from each

Abstract: A nozzle and method for generating a flat spray discharge having substantially large droplets of liquid therein, wherein the liquid is jetted from an orifice against an impingement partition plate to cause it to become extremely turbulent in a gas free turbulence chamber defined between the orifice and the partition plate. This substantially gas free, turbulent liquid is then flowed around the impingement partition plate to a second chamber and is discharged from an elliptical discharge orifice at the end of the second chamber to produce a flat spray discharge having substantially large droplets of liquid therein.

Abstract: A flat spray nozzle head for a manually-operated spray gun for spraying a material, such as a color material or the like without compressed air, comprising a nozzle portion containing a nozzle body arranged therein and a connection portion for connection with a spray pump for spraying the material to be applied. An infeed element for the infeed of the sprayed material to the nozzle body is arranged within the nozzle portion. This infeed element is rotatably mounted in the connection portion. The nozzle portion is thereby rotatably connected with the connection portion.

Abstract: A spray nozzle is provided for producing predetermined spray patterns of fan shaped configuration characterized in having an internal body configuration which is uniquely capable of effecting a very wide angled dispersion pattern of uniform density. The body of this spray nozzle is of disc shape having an outlet or a discharge end-face disposed transversely to a fluid flow axis through the body. An elongated, channel-shaped recess is formed in this discharge end portion and opens outwardly from the end face in transversely oriented relationship to the flow axis. A spray pattern control chamber is formed in the body along the flow axis thereof having an inlet at an end-face opposite the discharge end of the body and an outlet disposed interiorally of the body and in fluid communicating relationship with the channel-shaped recess. This spray pattern control chamber is formed with axially extending sidewall portions that are laterally spaced and are relatively convergent at the outlet end.

Abstract: An improved nozzle apparatus rapidly convertible, while operating, between spray and foam forming modes of operation. An elongate rigid generally cylindrical first conduit member receives surfactant bearing solution at an inlet port thereof and directs the solution under pressure to a spray forming nozzle connected at an outlet port of the first conduit. A second elongate conduit member coaxially slidably overlies the first conduit member and is movable relative thereto between extended and retracted positions. When in its retracted position, the second conduit member exposes the spray-forming nozzle, which is then enabled to direct a spray pattern of the solution longitudinally outward from the apparatus. When in its extended position, the second conduit member encompasses the spray-forming nozzle, and aspirates the spray therefrom with air to form foam which is ejected longitudinally outward from the second conduit member.

Abstract: A burner, or nozzle, especially for gaseous fuels in which the burner is formed of inner and outer members defining therebetween an annular gap from which the gas to be burned is discharged while preceding the annular gap is an annular turbulence chamber preferably having a greater cross sectional area than that of the gap. The fuel to be burned is introduced in substantially the radial direction into the turbulence chamber and then is discharged through the gap and burns. The walls defining the turbulence chamber and gap advantageously converge toward the axis of the burner in a direction outwardly from the burner and, likewise, converge with each other.

Abstract: A nozzle guard for airless spray pistols including a generally cylindrical tubular guard member attached to the nozzle end of the pistol with the spray nozzle received interior thereof adjacent one axial end, the guard member projecting beyond the nozzle orifice a distance sufficient to prevent injection of human flesh by the paint spray from the orifice when the flesh is positioned at the terminus end of the guard member. The guard member is circumferentially discontinuous providing axial extending slots aligned with the peripheries of the major diameter of the spray pattern.

Abstract: This apparatus has a unitary, flexible hose assembly with an inner hose for discharging fuel or other liquid under pressure into a tank to agitate its contents and an outer hose for withdrawing the liquid and entrained impurities from the tank. A pump and filters on a wheeled cart are detachably connected to the opposite end of the hose assembly to continuously recirculate and clean the liquid without intermediate storage of the liquid before it is returned to the tank. The discharge end of the inner hose and a nozzle thereon project several inches beyond the inlet end of the outer hose. An adjustable valve introduces air into the recirculated liquid stream between the outer hose and the pump inlet to increase the turbulence effect inside the tank. For the same purpose the outer hose may be formed with one or more openings near its inlet end.

Abstract: Apparatus is disclosed for fitting over the spray tip end of an airless paint spray gun, wherein the apparatus comprises a pair of forwardly projecting ears and a narrow slotted region opening said spray tip, and is adapted for key alignment with the spray tip.