Abstract: The invention relates to devices for air humidification, aerosol vaccination and disinfection, inhalation chemotherapy and for protection of plants against pests and diseases. The inventive aerosol nozzle-based device comprises a cylindrical container in which ejector atomizers are arranged above a liquid surface in such a way that they can rotate in a horizontal plane. Each atomizer comprises a chamber which is provided with a nozzle and into which branch pipes for supplying a liquid material to be atomized and air are introduced. The air supply branch pipes are tangentially arranged in the chamber. The atomizers are mounted in such a way that a jet coming out therefrom is chordwisely oriented with respect to the walls of the cylindrical container. The projection of the central axis of the aerosol spray on the cylinder walls does not cross the top edge of the walls during at least one turn. The dimensions of the branch pipe openings and of the nozzle are related by the equation Do=(0.5÷0.

Abstract: A topical spray composition and a system for containing and applying the composition is described. The composition has liquid emulsifiers that unexpectedly result in a superior product suitable to be applied homogeneously.

Abstract: A misting nozzle includes a body having a hole centrally defined therein and a flange radially extending therefrom to divide the body into a connecting section and a mounting section. At least two ditches are longitudinally and equally defined in the mounting section, and each laterally communicates with the hole. A distal end of the smooth portion is formed with an abutment and a round recess centrally defined in the abutment. At least two grooves are respectively equally defined in the abutment, wherein each groove is defined along a corresponding one of the tangents of the round recess and has two opposite ends respectively communicating with the round recess and a corresponding one of the ditches. A cap is airtightly mounted onto the mounting section of the body. A funnel-shaped hole is defined in a bottom of the cavity and communicates with the recess.

Abstract: A nozzle for a viscous liquid dispensing apparatus has a nozzle tip with a generally conical outer surface that tapers toward a dispensing orifice and forms an annular discharge air passage substantially parallel to the conical outer surface. Pressurized fluid is directed over the conical outer surface toward the dispensing orifice and thus, prevents viscous liquid dispensed from the dispensing orifice from being pulled back toward the nozzle tip and accumulating on the conical outer surface of the nozzle tip.

Abstract: In accordance with certain embodiments, a system includes a spray device having a liquid pathway leading to a liquid exit, an air pathway leading to an air exit directed toward a spray region downstream of the liquid exit, and an assembly disposed in the liquid pathway adjacent the liquid exit. The assembly includes a threadless pintle generally fit into a sleeve in a concentric manner without threads. The assembly also includes a generally annular passage between the threadless pintle and the sleeve and a passage coupled with the generally annular passage. The generally annular passage also has a cross-sectional area that alternatingly increases and decreases in a lengthwise direction along the liquid pathway.

Abstract: In accordance with certain embodiments, a spray coating device includes a body and a spray formation head coupled to the body. The spray formation head has a fluid delivery mechanism comprising a pintle, a sleeve disposed about the pintle, and a throat between the pintle and the sleeve, wherein the throat decreases in cross-section at least partially lengthwise through the fluid delivery mechanism toward a fluid exit between the pintle and the sleeve. The spray formation head also has a pneumatic atomization mechanism disposed adjacent the fluid delivery mechanism, wherein the pneumatic atomization mechanism comprises a plurality of pneumatic orifices.

Abstract: In accordance with certain embodiments, a system includes a spray device having a liquid pathway leading to a liquid exit, an air pathway leading to an air exit directed toward a spray region downstream of the liquid exit, and an assembly disposed in the liquid pathway adjacent the liquid exit. The assembly includes a threadless pintle generally fit into a sleeve in a concentric manner without threads. The assembly also includes a generally annular passage between the threadless pintle and the sleeve and a passage coupled with the generally annular passage. The generally annular passage also has a cross-sectional area that alternatingly increases and decreases in a lengthwise direction along the liquid pathway.

Abstract: A spray head for a power sprayer configured to generate a continuous sheet-like water shield around a center stream of water is disclosed. A water delivery device for use with a sink is disclosed, the water delivery device may produce a stream of water surrounded by a continuous shield of water.

Abstract: An air cap for keeping a spray nozzle with a flat spray clean is presented. The air cap contain the nozzle and has a slit for the spray from the nozzle, through which opening an air flow is flowing in the same direction as the flat spray from the nozzle. The air cap is divided into a back component comprising an internal thread, and a front component comprising the slit. The components are rotatable relative to one another.

Abstract: A nozzle for a viscous liquid dispensing apparatus has a nozzle tip with a generally conical outer surface that tapers toward a dispensing orifice and forms an annular discharge air passage substantially parallel to the conical outer surface. Pressurized fluid is directed over the conical outer surface toward the dispensing orifice and thus, prevents viscous liquid dispensed from the dispensing orifice from being pulled back toward the nozzle tip and accumulating on the conical outer surface of the nozzle tip.

Abstract: A nozzle having an ejection duct structured so as to allow a better distribution of the substances on the inner panes of nasal cavities and similar, such as auricular, vaginal and rectal cavities is described. A conical central portion is mounted in the nozzle outlet portion with its base in the outlet opening providing an annular fluid outlet, the conical central portion is rigidly secured to the inner wall of the outlet portion with baffles. In different embodiments of the invention the outlet portion, the central portion, the baffles and the annular outlet opening vary in shape.

Abstract: The invention relates to a method and a device for distributing liquid media, in particular extinguishing fluids for fighting fires, in the form of a mist or a stream of large droplets from a supply line which is maintained at a constant low-pressure, in rooms, for example in living spaces and recreation rooms, or similar. The aim of the invention is to provide a method and a device of the aforementioned type which can be used to produce a fine mist of small droplets and a jet spray of large droplets at separate moments, at approximately the same operating pressure of the extinguishing fluid, depending on the outbreak and the development of the fire, whilst at the same time minimising water consumption, reducing water damage caused during a fire and increasing cost-effectiveness, by creating a modular system which can be universally installed.

Abstract: A misting nozzle includes a nozzle body defining a conduit with a fluid inlet and a fluid outlet end. The nozzle also includes an aperture member having an opening therethrough with an aperture at one end. The opening is designed to receive the fluid outlet end therein. External threads on the nozzle body and mating internal threads in the opening releasably attach the aperture member to the nozzle body. A circumferentially extending surface is formed on the nozzle body adjacent the outlet end so as to abut a mating surface in the opening of the aperture member to prevent fluid flow between the fluid outlet and the aperture. Offset slots extend between the mating surfaces to provide fluid flow and are positioned to impart turbulence to the fluid prior to flowing through the aperture.

Abstract: A nozzle for discharging finely atomized fluids comprises a vortex-mixing-module with a mixing chamber along with at least one liquid inlet tangentially communicating with the chamber and at least one gas inlet axially communicating with the liquid inlet prior to their injection into the mixing chamber, wherein the mixed fluid of liquid/gas from the liquid inlet is setting vortex flow, re-mixing with each other and forming bubble-laden fluid. An impingement member positioned at the downstream of a substantially concentric-mounted pintle stem of the module provides the function of metering flow and forming the spray angle while maintaining the flow distribution to be axial-symmetric in both mass and velocity plus forming a flow field with non-disturbed angular momentum.

Abstract: The present invention pertains to two inserts to be used in conjunction with the nozzles of known liquid flow through applicators. The inserts have a proximate flange detailed to fit into a wider portion of the applicator and a bristle or dabber portion at its distal end detailed to extend beyond the applicator. The bristle or dabber portions are connected by an elongated rod portion. In one embodiment the rod portion is crisscrossed with a clockwise thread and a counterclockwise thread whereby two disparate liquids may be mixed together through the flow transitory passage of the liquids in the nozzle. In the second embodiment the rod portion is essentially smooth. However, the external diameter of the rod is substantially less than the internal diameter of the passage of the applicator whereby an annular space is formed.

Abstract: A tangential air entry fuel nozzle has a longitudinal axis and two cylindrical-arc scrolls with the centerline of each offset from that of the other. Overlapping ends of these scrolls form an air inlet slot therebetween for the introduction of an air/fuel mixture into the fuel nozzle. A combustor-end endplate has a central opening to permit air and fuel to exit into a combustor, while at the opposite end another endplate blocks the nozzle flow area. The scrolls are secured between these endplates. A centerbody is located between the scrolls coaxial with the axis. The centerbody has a base which includes at least one air supply port extending therethrough, and an internal passageway. The centerbody includes a frustum portion and aerodynamic ramps that prevent flow reversal and flame stabilization between the endplates.

Abstract: In accordance with one embodiment of the present invention, liquid material enters circumferencially into a generally cylindrical outer walled chamber. A baffle may be provided to facilitate circumferencial flow. The tangential, circumferencial flow tends to reduce turbulence. In the outer chamber a top wall is provided and a cushion of air is located between the top wall and the top of the liquid medium to effect cushioning. After circumferencial flow, the liquid flows radially inwardly into an inner fluid chamber through a plurality of openings in an inner cylindrical wall. Within the inner chamber and spaced between the bottom wall and the top wall is a diffuser section. The diffuser section provides a large plurality of parallel fluid flow paths to dampen remaining major currents by lowering the fluid velocity and thus the Reynolds number. The upper surface is arcuate. Thus fluid flows radially upwardly and inwardly to a knife-edged type orifice which results in laminar fluid flow exiting therefrom.

Abstract: A premix liquid fuel nozzle has longitudinal air entrance slots (24) into a cylindrical chamber (20). A centerbody (42) produces an axially increasing flow area toward the chamber outlet (32). Liquid fuel is atomized in a specified location (58) adjacent the conical centerbody (42). This area has a high axial shear velocity producing thorough vaporization and uniform mixing before combustion.

Abstract: A spray dispensing device is provided which can be used with non-pressurized containers. The device includes passageways for directing streams of air and liquid to a mixing chamber wherein the liquid is broken up into droplets and emitted as a fine spray through an orifice. An annular air passageway is concentrically disposed around a liquid passageway, both of which lead to the mixing chamber wherein the annular stream of air will be deflected by tapered walls of the mixing chamber to converge and impinge open the core stream of liquid, at a point in proximity to the orifice. The device may include a dip tube for the liquid which is provided with a check valve for retaining liquid at a high level in the dip tube after each spray cycle so that spraying is nearly instantaneous upon actuation.

Abstract: A spray dispensing device is provided which can be used with non-pressurized containers. The device includes passageways for directing streams of air and liquid to a mixing chamber wherein the liquid is broken up into droplets and emitted as a fine spray through an orifice. The device includes a dip tube for the liquid which is provided with a check valve for retaining liquid at a high level in the dip tube after each spray cycle so that spraying is nearly instantaneous upon actuation.

Abstract: A material extraction nozzle for separating a mixture of materials having different densities, comprising: a nozzle body shell having an outer surface with a tangentially located material inlet at an upper portion thereof and an inner surface defining in part a frustrum of a cone; a substantially conical diffuser section having an outer surface terminating in an apex, the diffuser section axially aligned within the nozzle body shell in a spaced relation therewith so as to form an extraction chamber with the inner surface of the nozzle body shell and the outer surface of the substantially conical diffuser section; an extracted material outlet port positioned axially through the substantially conical diffuser section; and at least one rejected material capillary outlet located below the apex of the diffuser section.

Abstract: A two flavor post-mix carbonated beverage dispensing head has a mounting block and valve body with a treble quick disconnect for water and two syrups, three flow controls in a first triangular structure, three valves and solenoids in a second triangular structure, sonic welded thermoplastic syrup tubes from the flow controls to the valves, and a unique mixing nozzle structure that brings either of the syrups and water convergently together.

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: A multivortex device is provided comprising a series of adjacent plates with specially designed grooves and perforations which, when mounted transversely of a uniform fluid flow in a duct, results in the formation of numerous small adjacent flow vortices either all rotating in the same direction (co-vortices) or adjacent vortices rotating in opposite direction (counter-vortices). The fluid at the peripheries of adjacent co-vortices move in opposite directions and friction converts their rotational kinetic energy into turbulence within a few vortex diameters downstream from the multivortex device. The fluid at the peripheries of adjacent counter-rotating vortices move in the same direction, such that they roll upon one another substantially without friction and persist for many vortex diameters downstream from the multivortex device. The adjacent plates of the multivortex device can be provided with additional grooves and passageways which allow a second and/or third fluid to be introduced within each vortex.

Abstract: In a beverage dispenser of the type having a diluent mixed with a syrup to produce the beverage to be dispensed, provision is made for utilizing a relatively high flow rate. To achieve the relatively high flow rate, a depressurizing system utilizing a vortex chamber is located at the output end of the valve arrangement. The flow path of the diluent through the valve arrangement before the depressurizing system is designed to minimize pressure drops. Diluent leaving the depressurizing system has its velocity decreased by a diffusing structure before being passed for mixing with the syrup. The diffusing system also decreases the swirl imparted to the diluent in the depressurizing system.

Abstract: Disclosed is a device for atomizing and dispersing a fluid in the form of a high speed dispersion filmy stream toward the environment surrounding the device. The device has a hollow cylindrical fluid barrel element in which a fluid, or fluids, under pressure is ejected so as to turn around an axis of the fluid barrel element, and a fluid dispersing round member defining a small dispersing opening between a conically convexed dispersing surface of the dispersing round member and a complementary end face of the fluid barrel element. The fluid dispersing round member is held by a flexible support structure so that the fluid dispersing round member is hydrodynamically drawn toward the fluid barrel.

Abstract: A cyclone is assembled from a kit having a feed head, a frusto-conical body and an apex nozzle all held together under axial pressure, all being arranged as a push-fit into each other. Supplementary bodies and complementary feed heads, all still arranged as push-fits, allow cyclones to be built up from the basic kit to larger diameters. The cyclones are held together in an assembly under axial pressure between end plates and may be arranged in a circular configuration with a single connector at the center of the circle holding the plates within a desired distance of each other.

Abstract: A flow passage having a restriction is connected between a fluid inlet and outlet. A frustum is disposed in the flow passage between the inlet and the restriction. The frustum has a base facing away from the restriction, and an apex facing toward the restriction. The inlet is transverse to the axis of the flow passage and positioned so the base and a portion only of the frustum are directly exposed to the inlet. The frustum is mounted on a rod extending through the flow passage. In one embodiment, a sphere is mounted on the end of the rod beyond the outlet. The rod may be hollow and have holes near the restriction for the purpose of liquid feed.

Abstract: Nozzles introduce jet streams of fine-grain fuel and a gasification medium downwardly toward the surface of a slag bath at the bottom of a cylindrical reactor shaft within a vessel to impinge upon the surface of liquid slag which is discharged through a centrally-arranged overflow in the bottom of the vessel. The nozzles are arranged at an angle within a range of 35.degree. to 40.degree. with respect to the horizontal and positioned so that the jet streams impinge upon the surface of the slag at points defined by a plurality of concentric circles with respect to the overflow to circulate and produce a resulting movement of the liquid slag toward the overflow while maintaining a high temperature and homogeneous slag bath. The nozzles are further positioned so that an angle of about 10.degree. is defined between each jet stream and a vertical tangential plane to the concentric circle at the point where the jet stream impinges.