Abstract: The construction of a nozzle head for a trigger sprayer apparatus and the constructions of several variant embodiments of fluid spinners that are assembled into the nozzle head facilitate the assembly of the spinners into the nozzle head with fluid swirl chambers of the spinners centered relative to a fluid discharge orifice of the nozzle head. The swirl chamber of each spinner assembly is surrounded by an annular wall and the end face of the annular wall engages against a flat orifice wall surrounding the sprayer discharge orifice thereby sealing the swirl chamber around the orifice. Tangential grooves through the annular wall provide the only path of fluid flow into the swirl chamber.

Abstract: A two stage pressure build-up discharge valve assembly is mounted within the end of the discharge nozzle surrounded by a nozzle cap of a trigger actuated pump sprayer, and includes a spring biased discharge valve element having a high pressure throttle valve fixed to a second stage low pressure valve piston to provide a predetermined pressure threshold which when exceeded by fluid pressure generated by the pumping force applied during trigger actuation unseats immediately permitting the fluid pressure to act upon the low pressure secondary valve piston rapidly snapping the valve element to a full open flow position.

Abstract: A low cost trigger sprayer has a housing with a first liquid passage containing a spinner assembly. An elastomeric pump element is positioned generally horizontally such that pulling the trigger retracts the element and releasing the trigger allows the element to extend. The sprayer includes a low cost spinner assembly and low cost valving to control the flow of liquid within the sprayer. In one aspect of the invention, the housing has front and rear sections with the rear section having a saddle portion and being hinged to the front section for pivotal movement from an open position for molding the housing to a closed position for operating the sprayer. In another aspect of the invention, the container has a rear portion which extends upwardly past the neck and defining a saddle recess, with the housing connected to the neck of the container and positioned forwardly of the upwardly extending container portion.

Abstract: A faucet spout including a sleeve member having a lower water exit, a core member having a closed end, a filtering screen, a resilient adapter fitted onto a faucet and a cap member. The core member is disposed in the sleeve member with the closed end facing the water exit of the sleeve member. The filtering screen is disposed in an inner insert groove of the sleeve member above the core member. The resilient adapter is disposed on an inner step section of the sleeve member. The cap member is screwed on an upper end of the sleeve member to associate the resilient adapter with the sleeve member. When the faucet is opened, the water flowing into the sleeve member is more than the water flowing out of the sleeve member so that the water accumulates therein and creates turbulence and back pressure, making the resilient adapter more firmly engage with the faucet without easily detaching therefrom. The water under pressure will be injected from the water exit of the sleeve member in fog pattern.

Abstract: The object of the invention is to provide a new fire fighting equipment, which is more effective than prior art equipments. The fire fighting equipment of the invention comprises a spray head with a number of nozzles, each nozzle comprising a nozzle socket (24) with a mouthpiece (20) and a whirler (22) arranged to bear against it. The whirler (22) is supported in a housing (2) of the spray head in such a manner that the whirler is set in rotation by the liquid pressure.

Abstract: Spray apparatus for mixing, atomizing and spraying foam forming components has a hollow wand of extensive length that is adapted to be connected at one end to a conventional mixhead and has mounted therein a static mixing element that extends the length of the wand. A nozzle having a singular central orifice through its tip is mounted on the distal end of the wand and houses a floating core. The core has a convex end facing the orifice and is contactible thereabout with an interior side of the nozzle tip. The mixing element has a spiral shape that operates to incite turbulence and thereby enhance mixing of the foam forming components passing through the wand from the mixhead. The core has a peripheral surface that converges in the direction of the orifice and angled channels in this surface separate the mixed components into streams directed toward the orifice and together with the orifice atomize the mixed components and cause the discharge thereof in a uniform atomized cone-shaped spray pattern.

Abstract: Injection nozzle for liquid media, with a nozzle body with an inlet duct and swirl ducts connected thereto and tangentially directed into a turbulence space, as well as with a return duct, whereby the turbulence space is substantially formed by an annular groove in the face side of the nozzle on the outlet side. There is a cover plate fastened thereon and provided with a central outlet opening, and the cover plate forms with the nozzle core a disk-shaped narrow gap. Thus, the nozzle body has in its face surface on the outlet side a central depression for receiving and locking into place the cover plate, whose diameter is smaller than the diameter of the nozzle body. The depth of the depression is smaller than the thickness of the cover plate, and the cover plate is seated on a collar of the nozzle casing enclosing the nozzle body.

Abstract: An apparatus for electrostatic atomization of liquids, particularly fuel, has a nozzle, which has a nozzle body of electrically conductive material, connected to ground potential, with a nozzle opening for the emergence of a volume of liquid under pressure and has an electrode in the nozzle body, coaxially opposite the nozzle opening, which electrode is at a high-voltage potential. To avoid a corona discharge of the electrically charged liquid volume emerging from the nozzle opening, which would limit the magnitude of the possible electric charging of the liquid volume in the nozzle and thus the degree of atomization, nonelectrical means are provided toward the nozzle opening for atomizing the liquid volume as it emerges from the nozzle, and these means are embodied such that the mechanical breakaway forces they produce in the liquid volume are effective sooner than the forces of electrostatic repulsion prevailing between the liquid droplets.

Abstract: A cap, spinner, and discharge nozzle assembly for use with a liquid dispensing apparatus such as a trigger sprayer. The spinner assembly can be externally fitted to the discharge nozzle, and includes an annular chamber surrounding a central post having a swirl chamber in its top. The central post includes longitudinal grooves, communicating with tangential grooves in an annular wall defining the swirl chamber. Apertures are provided in the base of the annular chamber such that pressurized liquid flows through the apertures and into the annular chamber, with a resulting reduction of velocity, and then along the longitudinal grooves and through the tangential grooves into the swirl chamber. A cap is provided which variably engages the discharge nozzle and which has at least a central projection on the inner side of its front face, and preferably an annular groove formed by an outer projection surrounding the central projection.

Abstract: A spray nozzle for an electric iron includes a nozzle cap having an outlet orifice formed in an end wall thereof. The cap includes an axially extending cylindrical wall defining an axially extending bore. A fluid delivery tube is provided in the bore. The inside surface of the end wall includes at least two circumferentially spaced raised pads. The sides of adjacent pads define slots therebetween. A substantially flat disc-like member is disposed in the bore adjacent the pads. The diameter of the member is somewhat less than the diameter of the bore to define a circumferentially extending groove. The opposed surfaces of the end wall and the member define a cavity. The pads define the radially inner circumferential border of the cavity. The slots formed between adjacent pads are disposed on lines that are tangent to the cavity. The end of the fluid delivery tube is notched to form "V"-shaped surfaces.

Abstract: An atomizing nozzle usable on a vaporizer or atomizer is provided, having a unified core and valve member and a diaphragm perforated by a narrow orifice. The unitary member is axially mobile and laterally guided in a chamber within the nozzle. Additionally, the unified member has, on its end remote from the orifice, a concave circular cup in which the edges of the cup are turned toward the orifice, and, on its end nearest to the orifice, a core portion which cooperates with the diaphragm to form a system of turbulent channels which supply the orifice.

Abstract: A water mist-producing device includes a nozzle structure having a flow passage connected to a pressurized water source. A cylindrical pin is coaxially disposed in the passage so that pressurized water flows through an annular space between the pin and the passage wall surface. The downstream end of the pin abuts a transverse end wall having an exit hole assigned with the pin axis. Small angularly disposed flow ducts are defined in the downstream end portion of the pin to conduct jets of water across the end of the pin and through the exit hole. The angular disposition of the flow ducts effects spinning about its axis.

Abstract: A dispensing device for the discharge of liquids, particularly for the spraying of the liquids employs a trigger operated bellows acting as the pump chamber. A nozzle carries the valve body of a discharge check valve for the pump chamber. The intake check valve for the pump chamber is formed as a one piece component with the pump chamber for reducing the number of parts of the trigger sprayer.

Abstract: An electromagnetic fuel injection valve in which an area of an annular gap formed by a ball valve and a valve seat when the ball valve is lifted is made smaller than cross sectional area of grooves provided on a fuel swirling element which gives fuel supplied a swirling force and further is made larger than a cross sectional area of a fuel injection port, whereby the fuel is injected with an excellent atomizing characteristic.

Abstract: Method and device for forming a gellified polyrethane layer on a surface, notably of a mould, by spraying a liquid reaction mixture comprising polyol and isocyanates and which has a viscosity between 20 and 2000 centipoises. The mixture is sprayed in the form of a film of liquid and/or raindrops of which the main part has a mean diameter (Medium Volume Diameter; "M.V.D.") which, according to the standards ASTM E 779-81, is larger than 100 microns and preferably larger than 500 microns.

Abstract: A whirl nozzle for atomizing a liquid has a whirl chamber rising above a whirl chamber bottom and tapering toward a nozzle outlet orifice opposite the bottom, at least one whirl channel laterally offset to a central axis of the whirl chamber and opening into the latter, and a whirl parameter of greater than 1, so as to permit an increase in the whirl input pulse at constant or reduced whirl losses. A displacement element rises above the whirl chamber bottom to prevent the formation of an air core in the region of the floor. The element is arranged concentrically about the central axis and the external diameter of the section nearer the floor is equal to at least one diameter of the nozzle outlet orifice. In one embodiment, the conical seating surface has a smaller apex angle than a section of the whirl chamber wall adjoining the nozzle outlet orifice. In another embodiment, the displacement element is provided with at least one eccentrically arranged reflux bore.

Abstract: A self cleaning solenoid controlled water spray nozzle and valve assembly including an adaptor connected at one end to a solenoid actuated valve member and having a nozzle and nozzle flow direction member connected to the opposite end of the adaptor. A cleaning pin is connected to the valve member and extends through the nozzle orifice. In one embodiment the nozzle is integrally formed with the adaptor and the flow direction member is integrally formed on the bottom wall of a cup positioned within the adaptor. In another embodiment the nozzle and associated flow direction member are threadably mounted on the adaptor.

Abstract: An electromagnetic fuel injection valve in which an area of an annular gap formed by a ball valve and a valve seat when the ball valve is lifted is made smaller than cross sectional area of grooves provided on a fuel swirling element which gives fuel supplied a swirling force and further is made larger than a cross sectional area of a fuel injection port, whereby the fuel is injected with an excellent atomizing characteristic.

Abstract: A dispensing apparatus comprises a pressurised dispensing container (3), a housing (2) for the container defining a bore, the container having a body (50) which is axially slidable in the bore, the container having a collapsible metering valve (8) located at a first end (6) of the body for dispensing metered quantities of fluid and actuated by axial depression of a valve stem (9) defining a dispensing flowpath, a valve actuator (11) fixedly connected to the housing at a corresponding first end (7) thereof and defining a further dispensing flowpath for product fluid dispensed through the stem, and trigger means (30) operable to urge the container body axially towards the first end of the housing such that the valve stem is depressed by relative movement together of the valve and actuator and thereby dispensing a metered quantity of fluid, wherein the container body defines a chamber (4) and the container includes means (5) dividing the chamber into a product fluid reservoir (25) communicating with the valve an

Abstract: An electromagnetic fuel injection valve in which an area of an annular gap formed by a ball valve and a valve seat when the ball valve is lifted is made smaller than cross sectional area of grooves provided on a fuel swirling element which gives fuel supplied a swirling force and further is made larger than a cross sectional area of a fuel injection port, whereby the fuel is injected with an excellent atomizing characteristic.

Abstract: The two piece foamer nozzle assembly comprises a first piece including a body having a front end and a rear end and a second piece releasably connected to the first piece. The first piece has a first cavity in the body thereof opening onto the rear end thereof and being adapted to be received over a nozzle bushing mounted at the front end of the body of a hand manipulatable pumping apparatus. The nozzle bushing is of the type which will eject fluid into the first cavity in a swirl or spiral manner. The first piece further comprises a barrel portion having a second cavity opening onto the front end thereof and an intermediate wall within the first piece between the first and second cavities. The intermediate wall has an orifice extending therethrough with a rear end communicating thereof with the first cavity and a front end communicating with the second cavity. The swirl of liquid is ejected in a spray pattern from the front end of the orifice.

Abstract: A trigger type sprayer which comprises a sprayer body whose inner lateral walls are provided with a pair of mutually facing engagement grooves, and wherein a trigger of the sprayer has a notch cut out in the upper end portion of the front wall and a pair of lugs formed on the outside of the upper end portions of the lateral walls. A nozzle fixed to the sprayer body extends outward through the notched portion of the trigger, and has a pair of axially extending stoppers integrally formed on the outer surface of the nozzle. The trigger can be rotatably connected to the sprayer body with ease due to the paired lugs being snap-fitted to the engagement grooves of the sprayer body and the upper end portions of the lateral walls of the trigger are prevented from being thrown inward by the stoppers of the nozzle and inconsequence coming off the sprayer body.

Abstract: An elongate push-element (2) having a nozzle integrally formed with an external part (20) thereof, so that the nozzle cannot be forcibly ejected from a container which expels liquid under pressure. An opening (21a) at one end of an internal channel (21) may be slidably fitted on a valve stem (4) of a container (1), so that the push-element may be used with a variety of valve types.

Abstract: The discharge device comprises a member having a plurality of liquid flow openings, an eductor tube, a liquid flow path from the eductor tube to the member with the plurality of liquid flow openings and a valve positioned in the liquid flow path. The valve is movable between a blocking position and a discharge position. The valve is operative in the blocking position to block the liquid flow path and is operative in the discharge position to unblock the liquid flow path. Further, a cap member having a discharge orifice which is larger than any of the plurality of openings is mounted over the member having the plurality of openings. The device produces a fine spray mist. However, the device can also be used to produce a foam by placing a screen over the orifice.

Abstract: An atomizing nozzle for oil burners that includes a housing having a front wall with an orifice in the front end thereof, a distributor insert abutting against the front wall and a retainer member that abuts against the distributor insert and is retained in place by a housing annular shoulder deformed into a retainer member groove. The retainer member is of a sintered material and includes a retainer element integrally joined to a filter element which extends rearwardly of the housing, the retainer member having a fluid passage opening to the distributor insert and extending rearwardly of the housing.

Abstract: This invention relates to an apparatus for quantitatively definite delivery of a liquid or thick, pressurized medium such as paint, varnish, glue or the like wherein the medium is placed under pressure by a conveying pump comprising a pump discharge valve and whereby a second valve is provided at or close to the delivery nozzle, this second valve being actuatable by the pressure of the medium to be delivered and having an opening pressure which is greater than that of the pump discharge valve.

Abstract: The two piece foamer nozzle assembly comprises a first piece including a body having a front end and a rear end and a second piece releasably connected to the first piece. The first piece has a first cavity in the body thereof opening onto the rear end thereof and being adapted to be received over a nozzle bushing mounted at the front end of the body of a hand manipulatable pumping apparatus. The nozzle bushing is of the type which will eject fluid into the first cavity in a swirl or spiral manner. The first piece further comprises a barrel portion having a second cavity opening onto the front end thereof and an intermediate wall within the first piece between the first and second cavities. The intermediate wall has an orifice extending therethrough with a rear end communicating thereof with the first cavity and a front end communicating with the second cavity. The swirl of liquid is ejected in a spray pattern from the front end of the orifice.

Abstract: An environmental control system which atomizes filtered and purified or pretreated water introduced at high pressures through a plurality of spaced nozzles which have orifices having a diameter of about 10 microns to produce a mist of microscopic particles which evaporate at elevated temperatures by flash evaporation to produce a significant cooling effect. At normal temperatures cooling is minimal but humidification is obtained. The nozzles which may be especially designed to eliminate or minimize clogging of the orifices are installed in elongated pipes or conduits at selected intervals either in a single line or alternatively in a dual line of parallel pipes spaced one above or in front of the other with the nozzles arranged in a staggered manner so that the effluent spray is from the upper pipe and is not ejected above the spray from the lower pipe. Additionally, the pipes are positioned so that the ejection of spray from the nozzles can occur at angles which will provide an optimum spray pattern.

Abstract: A multi-purpose nozzle assembly for a liquid dispenser includes a rotatable nozzle cap having an internal sleeve in engagement with the end of a fixed plug located within an outlet member of the dispenser containing a discharge conduit. An end wall of the cap has a smooth inner surface confronting the end wall of the plug, and the plug and sleeve have two discrete passageways formed between the discharge conduit and the discharge orifice located in the cap end wall. The passageways are capable of being opened and closed in selected rotative positions of the cap in alternating off, stream and spray positions.

Abstract: A spray nozzle for manually operated liquid atomizer comprises a valve pin forming a normally closed check valve and biased by a resetting spring so that a head portion thereof is biased toward a co-operating valve seat and an annular stop flange thereof having a larger diameter than this head portion is biased toward a radially projecting holding lip which is formed at the valve-side end of the cavity of a cup-shaped nozzle member having a bottom which supports the resetting spring.

Abstract: A deformable spray dispenser comprises a valve unit which is capable of axial displacement within the container with respect to the container cover between a spray-discharge position and an air-suction position. The valve unit supports a member for shutting-off the eductor tube in its air-suction position. The valve unit is provided with a valve cap having an external face which is applied against an internal face of the container cover in the spray-discharge position and cooperates with the internal face so as to form a nozzle for discharging liquid through the container-cover orifice in an atomized spray pattern.

Abstract: A multiple purpose water spray gun comprises: a main body, a revolving ring, a water control rod, a press trigger, a seal plate and an adjusting knob, wherein at the front end of the revolving ring, five nozzles of different types are arranged for various purposes. One of the nozzles is a rain-drop nozzle consisting of a central recessed hole where water is led in, a plurality of grooves which are radially disposed around the recessed hole and by each of which the water is conducted into a different large opening to then pass through a small hole to spray out as mist. The press trigger and the main body have matched lugs for direct pressing together to save assembling cost; leakage prevention rings are provided along the front and rear ends of the water control rod, to ensure perfectly tight seals.

Abstract: An actuator for a container that dispenses liquids containing a suspension of particulate material that keeps itself from clogging comprises a mechanical break-up chamber to emit a fine spray and includes a continuous emission from an orifice which keeps the chamber free from accumulation of solid particles.

Abstract: A nozzle having a nozzle casing with a whirl member positioned therein and which is pressed against the internally conical bottom of the nozzle casing. The fluid fed to nozzle bore is filtered in a filter and then passes into an annular channel. The latter contains a protective member with passage orifices which are at least as large as the passage orifices of the filter. The protective member holds back any particles detached in the filter or nozzle casing and consequently prevents clogging of whirl channels located in whirl member and of the nozzle bore. It is positioned in immediate proximity of the nozzle bore so as to trap the maximum number of particles.

Abstract: A pressure-jet oil burner nozzle includes a body having a threaded rear connecting socket to connect the nozzle to a pressure oil conduit. The nozzle includes a front nozzle tip connected to the body and having an oil discharge passage, and an insert having a front end provided with grooves disposed in the nozzle body with the front end disposed close to the side of the nozzle tip facing the interior of the body whereby the grooves, together with the inner side of the nozzle tip, define flow passages leading from the nozzle body to the oil discharge passage in the tip.

Abstract: In an orifice and nozzle for the passage of fluid which may contain solid particulates as contaminants, the orifice and nozzle includes an opening which is rectangular in a cross-sectional plane perpendicular to the axis of the fluid flow. The rectangular opening has a ratio of minimum width to minimum depth, or vice versa, of less than approximately 1.5, and preferably 1.0, and a ratio of the length of the opening to the lesser of minimum width and minimum depth of the opening of less than approximately 2.0, and preferably 1.0. The rectangular cross section together with these ratios prevents plugging by the solid contaminants.

Abstract: A three-piece nozzle is disclosed, for fitment to a hand actuated liquid pump having a barrel portion with a bore therethrough for passage of liquid. The nozzle features an integrally formed nozzle cap which fits around the end portion of the barrel. Enclosed within the nozzle cap is an integrally formed nozzle seal which forms a peripheral liquid-tight seal around the barrel between the nozzle cap and the barrel. Also provided is an integrally formed check valve which is movably positioned at the mouth of the bore and which is biased towards the mouth of the bore to form a liquid-tight bore seal. The bias is overcome, to open the liquid-tight bore seal, upon actuation of the pump which provides liquid pressure in the bore to act against the check valve.

Abstract: A spring-loaded double-ended check valve assembly is provided for use in the outlet chamber of a dispenser for spraying liquids. The entire assembly, including both ends and the spring, is made in one-piece and is easily moldable from plastic material thus effecting ease of manufacture and assembly into the sprayer, reduced labor and material costs and affording the reliability of a unitary member.

Abstract: Disclosed herein is a hand operated sprayer for liquids, in which the spraying unit is provided with a small bore which is factory sealed at the assembly by a special fitting properly located, to be eliminated by the pumping lever when first operated, said bore communicating with the inner space of the container.

Abstract: A trigger type sprayer which comprises a sprayer body whose inner lateral walls are provided with a pair of mutually facing engagement grooves, and wherein a trigger of the sprayer has a notch cut out in the upper end portion of the front wall and a pair of lugs formed on the outside of the upper end portions of the lateral walls. A nozzle fixed to the sprayer body extends outward through the notched portion of the trigger, and has a pair of axially extending stoppers integrally formed on the outer surface of the nozzle. The trigger can be rotatably connected to the sprayer body with ease due to the paired lugs being snap-fitted to the engagement grooves of the sprayer body and the upper end portions of the lateral walls of the trigger are prevented from being thrown inward by the stoppers of the nozzle and in consequence coming off the sprayer body.

Abstract: A spray head for the nebulization of fluid under pressure having a swirl chamber with a discharge orifice and a pair of passages operative to conduct fluid to said chamber, the chamber including two wall portions symetrically interposed between the passages and the discharge orifice, the configuration and disposition of said wall wall portions cooperatively to produce a swirling of fluid about the discharge orifice and effect nebulization of discharging fluid over a wide range of fluid pressures.

Abstract: This relates to an injection nozzle which includes a nozzle body having at one end thereof an inlet channel which is connected to an annular spinning chamber which is connected to the inlet channel by means of spin channels directed tangentially into the spinning chamber, and an exhaust orifice. The exhaust orifice is formed in a closure plate which cooperates with a core of the nozzle body disposed within the general confines of the annular spinning chamber to define a very narrow gap through which injected liquids flowing from the spinning chamber must pass in order to flow into the discharge orifice. The cross section of the exhaust orifice is materially greater than the cross section of the gap, thereby providing a much greater ratio of the smallest amount of liquid which may possibly be injected to the largest amount.

Abstract: An improved adjustable-spray mechanism which includes a button body to be fixedly connected to the exit stem of an aerosol or other fluid container, the button body being characterized by a bore having an end wall. An orifice extends through the end wall from the bore and constitutes a spray outlet to the environment. An adjustable valve is disposed in the bore so as to selectively advance toward or retract from the end wall. Upon introduction of fluid to the bore, a variable fluid spray pattern can be obtained upon adjustment of the valve toward or away from the orifice in the wall.