Abstract: A torch tip for use with a die casting torch in which the tip functions to blow out the flame when the ratio of air pressure to gas pressure being supplied to the tip exceeds a predetermined safe value. The torch tip comprises a unitary die casting and includes a generally cylindrical main body portion, a partition extending transversely between the ends of the main body portion, a reduced diameter mouth at the discharge end of the main body portion having a diameter that is less than the internal diameter of the main body portion at the partition, and a plurality of holes in the partition including at least some holes spaced radially outwardly of the circumferential boundary of the reduced diameter mouth.

Abstract: The invention relates to a nozzle for a paint spraying device having a radially inward valve needle that is connected in a coaxial arrangement with the nozzle. A radially outward paint supply pipe is connected to the valve at one end and a paint source at the other. The valve needle is hollow for paint supply purposes and has a forwardly inclined bore in its tip which opens axially in front of the valve into an annular chamber created between the valve needle and the supply pipe.

Abstract: A process and apparatus for generating particulate containing fluid jets wherein at least one discontinuity generator is provided to create fluid instabilities, enhancing entrainment and acceleration of particulates in the fluid jet stream and providing uniform distribution of accelerated particles over a large surface area.

Abstract: A foam extinguishing system in which a foam generating net is provided at the front of a chamber, and foam nozzles and a gas discharge nozzle are provided at the rear of the chamber is disclosed wherein in order to lengthen the flying distance and suspension time of the non-combustible gas solution discharged from the gas discharge nozzle a deflector is provided in front of the nozzle to reflect and disperse a non-combustible gas solution discharged from the nozzle rearwards or sideways from the rear. The gas discharge nozzle provided with the deflector may be also located in such a position that the non-flammable gas solution reflected and dispersed by the deflector does not disturb the discharge pattern of a foam solution from the foam nozzles and that the non-combustible gas is pushed forward by an air flow generated in the air by a negative pressure.

Abstract: An adjustable conical atomizer comprises a body part having an end or discharge face with a conical recess and a conical plug having a complementarily conically-formed surface which is adjustably positioned in the conical recess. The size of the cavity formed between the plug and the body is varied by changing the relative positions of the plug and the body, for example, by using an indexing bolt which connects the body part and the plug parts. The body or a connection to the body is provided with channels or passages for the passage of two or more fluid streams into the space between the plug and the body part for intimate mixing therein. The fluid stream includes a liquid which is accelerated in this zone between the body and the plug. The plug and the body form an annular discharge therebetween which diverges in an outward direction.

Abstract: A process and apparatus for producing a thick foam from a spray of liquid and air. An interrupter is located in the path of a controlled portion of the outer periphery of a continuous stream of liquid. By precisely controlling the amount of peripheral flow impinged upon by the interrupter in the stream periphery, turbulence is created with consequent pressure drop and ingress of counter flowing ambient air which mixes with and causes foaming of the liquid constituent. The apparatus produces relatively large liquid particulate in air suspension. Such particulate is not readily inhaled or sensed by olfactory faculties. The dense, low velocity foaming spray which is produced adheres to target surfaces and remains in suspension eliminating dripping or running liquid.

Abstract: A mixing and dispensing gun comprising a body having spaced inlets for receiving two components of an adhesive or reactive fluid, a dispensing valve in the gun, an outlet nozzle and a motionless mixer interposed between the dispensing valve and the outlet nozzle for directing the fluids in a sinuous path and mixing the fluids.

Abstract: A foam-applying nozzle assembly (N) for applying a foam made up from a supply of a foam-forming liquid composition (F) and a flowing liquid stream (W) includes an inner barrel (I) having an axial bore (10) for communicating the liquid stream (W) from a hose. Eductor means (E) with the inner barrel (I) extracts the foam-forming liquid composition (F) from the supply of the foam-forming composition. The eductor means (E) inducts the extracted foam-forming liquid composition (F) into a portion (W') of the liquid stream (W) flowing through the eductor means (E). The eductor (E) has a discharge opening (22o) in proximity to the outlet of the inner barrel I for mixing the foam-forming composition (F) with the liquid stream (W) from the inner barrel (I) in proximity to the discharge of the liquid stream, whereby a foam is created. Flow regulating nozzle means (R) mounted in an outlet (10o) of the bore (10) regulates the lateral extent of the discharged stream (W).

Abstract: The invention relates to a water jet aerator which, in place of conventional metal screens, has at least two separate staircase-like obstacles, which project laterally into the paths of the individual jets and split up the jets, and mix them with air. Several such obstacles are arranged in the immediate proximity of one another, successively in the direction of flow, so that a cohesive, well-ventilated jet is obtained. The configuration of the jet cross-section can vary as a function of the arrangement of the facing walls defining the flow path in the area of the obstacles.

Abstract: The installation comprises a static mixer (1) connected to receive yoghurt from a yoghurt store (4) and a flavoring from a selected flavoring store (8 to 10). The amount of yoghurt and flavoring dispensed is measured by appropriate metering pumps (11 to 14). The static mixer has a bottom outlet (1a) under which a beaker (20) is placed to receive a portion of flavored yoghurt. The beaker stands over a waste funnel (19) to catch drips and spills. A wash tank (22) is provided together with various feeds for rinsing and/or cleaning materials (27 to 28). The wash tank is connected via a pump (33) and a duct (31) to a spray head (34) in the yoghurt store (4). A thorough automatic rinse-wash-rinse cycle can be performed, whenever necessary. The rinse cycles are preferable open circuit cycles, and the wash cycle is preferably a closed circuit cycle.

Abstract: A foam generating nozzle is provided for converting a liquid containing a gas maintained under pressure in solution in the liquid, to a foam for application to a substrate. Complete foaming of the solution is accomplished prior to discharge from the nozzle. This assures in some applications complete atomization before contact with the substance to be coated.

Abstract: An expansion control mixing and dispensing nozzle adapted for attachment to an associated two-component liquid dispensing gun for mixing and dispensing liquid foamable products. The nozzle includes a mixing chamber, a mixing chamber outlet tube and an outlet tube cover arranged in co-axial relation. The outlet tube cover including an outlet slot or passage in its outer end portion; its inner end surrounds a part of the mixing chamber outlet tube so as to define an annular auxiliary chamber therebetween. The mixing chamber has spaced apart inlet ports for receiving individual liquid components and a baffle or the like to impart a swirling action to the components as they expand in the mixing chamber, a pre-discharge chamber lies between the outlet slot and the end of the outlet cover.

Abstract: The present invention relates to a lining apparatus for a pipe having a plurality of constitutive elements which are connected to each other in a line and include as a whole at least one driving means for moving the apparatus in the pipe, a pair of tanks for containing respective paint materials such as main material and hardener, a pair of feeding devices for feeding the respective paint materials, and a paint injecting device for making paint by mixing the paint materials fed by the feeding devices and injecting the paint to the interior surface of the pipe. The paint injecting device has a hollow rotary injector which is rotated by a driving means and has at least one radially elongated portion forming a nozzle at outer end thereof. The radially elongated portion of the rotary injector has a plurality of guide plates inside thereof for mixing the paint materials passing therethrough.

Abstract: A nozzle for dispensing a solution of molten hot melt and gas. Upon emerging from the nozzle, gas is released from the solution to form a foamed hot melt. The nozzle comprises a body having a liquid flow passage therein, which flow passage contains a restrictor at the upstream end and a diverter flow path at the downstream end.

Abstract: The apparatus for spraying a mixture of a propellant and a cooling agent onto a continuously cast strand, especially slabs, comprises guide means for the cooling agent including a spray nozzle, having a nozzle opening at the front side thereof in order to improve the cooling agent distribution. A narrow mixing chamber flow communicates with the spray nozzle and opens transversely with respect to the strand and with the formation of an angle. The spray nozzle opens approximately at the apex region of the mixing chamber. The cooling agent is discharged as a spray jet from the spray nozzle and gaseous propellant is conducted from a number of sides at an acute angle to the direction of the spray jet.

Abstract: A device to atomize and inject a coal slurry in the combustion chamber of an internal combustion engine, and which eliminates the use of a conventional fuel injection pump/nozzle. The injector involves the use of compressed air to atomize and inject the coal slurry and like fuels. In one embodiment, the breaking and atomization of the fuel is achieved with the help of perforated discs and compressed air. In another embodiment, a cone shaped aspirator is used to achieve the breaking and atomization of the fuel. The compressed air protects critical bearing areas of the injector.

Abstract: A foam generating nozzle is provided for converting a liquid containing a gas maintained under pressure in solution in the liquid, to a foam for application to a substrate. Complete foaming of the solution is accomplished prior to discharge from the nozzle. This assures in some applications complete atomization before contact with the substance to be coated.

Abstract: An apparatus (unit A) for completely and uniformly mixing different colored paints from a reservoir (unit B) is constructed from upper and lower sections (9) and (11). Different colored paints from reservoir (unit B) are supplied through lines (15) to inlet passageways (29) and (29c), which are in fluid flow communication with flow control valves (23) and (23c) and with corresponding fluid channels (37) spiraling around a generally frustoconically shaped protrusion (27) extending upwardly from the lower housing section (11). Protrusion (27) snugly engages within a correspondingly shaped cavity (25) formed in upper housing section (9), with the inside surface of the cavity cooperating with channels (37) to form individual passageways that crisscross each other to thoroughly mix the different colored paints carried therein. The passageways terminate at the upper end portion of protrusion (27) to discharge the uniformly mixed-together paint out through an outlet tube (5).

Abstract: A method and apparatus for chemically treating textile goods. An applicator has a slot for discharge of the chemical. The slot communicates with a mixing chamber in which the treating chemical and a gas are swirled under the influence of the gas, admitted under pressure. The swirling creates a homogeneous mixture which is discharged at high velocity to pass into the textile goods. A surfactant may be added to the chemical so the homogeneous mixture will foam after the mixture is in the textile goods.

Abstract: A fiber insulation application nozzle having a small opening for introducing insulation into cavities through a small opening is provided. The diameter of the body portion of the nozzle corresponds with the diameter of the conventional deliver hose from an insulation blowing machine. The nozzle includes a reducing section tapering to an exit portion having a diameter one-third of the main body. A gas injector tube is introduced along the inside surface of the exit portion of the nozzle and is directed along the surface. Fiber insulation in the nozzle is compressed prior to entering the exit portion. The gas injected into the exit portion aids in moving the particles through the nozzle. The compressed fibers are surrounded by high pressure gas and are caused to expand into a fluffed condition upon leaving the nozzle. An impinging stream of liquid adhesive is provided within the exit portion of the nozzle so as to thoroughly wet and coat the insulation fibers within the nozzle as they exit the nozzle.

Abstract: An atomizer and method of atomization featuring prevention of spray collapse by use of critical spacing of atomizer features is disclosed.

Abstract: A process for supplying insulating materials wherein fibrous insulating material moves in a confined turbulent air stream into which an adhesive is injected. Air under pressure is also injected so that portions of the air are entrapped within the fibrous insulating material. The injection of the adhesive and the air increases the pressure of the confined moving air stream so that the fibrous insulating material expands and fluffs when released to the atmosphere.

Abstract: The present invention relates to a nozzle head for a cooking extruder for the production of a porous edible shell which is filled with an edible filling. The shell is of a breadlike character and the filling may be a sweet filling or an acid fat-containing filling.The axis of the extruder nozzle is perpendicular to the axis of the extruder worm, and a filling tube through which a filling mass can be fed to the shell extends through the extruder nozzle.In accordance with the invention, the filling tube 9 is surrounded by a mandrel 2 which forms with the tube an annular space 7 which separates said tube from the space conducting the molten material and extends to the outlet opening 6 of the extruder nozzle 3.In this way the filling tube and the melt are thermally separated from each other so that the filling tube is not heated while, on the other hand, the melt is not cooled at the outlet end.

Abstract: A bubbler head for use on a sprinkler or irrigation system comprises a body having a water passageway and an air passageway therethrough. The water passageway extends radially outwardly from a central entrance and includes a serpentine portion. Air is drawn through the air passageway and is thoroughly mixed with the water in a mixing chamber prior to the mixture being sprinkled or discharged onto the ground in a nonerosive fashion.

Abstract: The invention relates to an apparatus, particularly a shower head for forming a plurality of vented jets. The apparatus has a device for producing individual jets. It also has at least one underlying air space and obstacles projecting laterally into the paths of the individual jets, which deflect the latter and, while mixing with air atomize the said jets. Passage channels, which can have vortexing portions and quieting portions are provided for each vented jet for further influencing the air/water mixture. Several individual jets are used for producing a single vented jet. The object of the invention is mainly intended for use in the sanitary field.

Abstract: A dual fuel injector for a gas turbine engine is arranged to maintain pre-determined air fuel ratios in adjacent upstream and downstream opposite handed vortices and to reduce the deposition of carbon on the injector. The injector comprises a central duct, a deflecting member, a first radially directed outlet, and a shroud which defines an annular duct, and a second radially directed outlet. The ducts receive a supply of compressed air and the central duct receives gaseous fuel from an annular nozzle and the annular duct receives liquid fuel from a set of nozzles.When the injector is operating on liquid fuel, the fuel and air mixture issues from the second outlet and compressed air flows from the first outlet and prevents migration of fuel between the two vortices, thereby maintaining a rich air fuel ratio in the upstream vortex which reduces the emissions of NOx. Also, the flow of air from the first outlet reduces the deposition of carbon from the liquid fuels on the deflecting member.

Abstract: A plural component flushless spray gun has a fluid outlet orifice defined by two opposed inlet orifices with a thin blade interposed therebetween. The blade prevents fluidic material exiting each inlet orifice from flowing directly into the other, and is slotted at its forward end to define a very small volume chamber into which the components flow for mixing prior to being emitted through the outlet orifice defined at the forward end of the slot. Because the chamber has a very small volume, the components are intimately mixed for better polymerization, and only a very small quantity of reactive components are mixed within the gun immediately behind the outlet orifice. Consequently, should the mixed components harden within the gun, only a limited amount of material is involved and the blockage may readily be removed simply by triggering the gun on to eject the blockage through the outlet orifice.

Abstract: Described herein is an apparatus for producing a mixture of chemical components which comprises an elongated housing containing (a) a tube extending therethrough having at least one inlet means for supplying at least one component into said tube whereby said components flow from said inlet means to outlet means at the other end of said tube; (b) inlet means for supplying at least one component either reactive with one or more components of (a) or catalyzing the reaction of two or more components of (a), said inlet means in communication with an annular groove within a conical member which receives said component(s), (c) means for distributing said component(s) from the annular groove to a plurality of grooves in said conical member, said grooves directing the component(s) into the flow of the component(s) of (a) in said tube.

Abstract: A tubular member having a plurality of discharge openings along its length and having means by which it can be inserted into a quench zone so that fluid is discharged in a patterned spray generally transversely across the quench zone. The tubular member having baffle plates attached thereto or fixed adjacent thereto with the baffle plates of sufficient size and shape to fill the spaces between patterned spray thereby directing into the patterned spray the material flowing axially through the quench zone. A method and apparatus for producing uniform carbon black particles using a quench pipe as described above in the prequenching zone of a carbon black reactor.

Abstract: This invention concerns the heating of a liquid, such as milk, by steam infusion and involves the formation of the liquid into a descending curtain that is initially generally frusto-conical in configuration and later is generally cylindrical as it passes through an atmosphere of steam. The curtain is of relatively small diameter at its upper end and continually increases its diameter as it moves downwardly, thus, not only causing the thickness of the film to progressively decrease but also causing the surface area of the film to be greatly enlarged.

Abstract: This invention relates to improvements in dispensing guns and more particularly to guns of the type provided with dual conduits into which plural streams of two parts of adhesives can be fed and later intimately mixed in the detachable nozzle at the end of the gun immediately prior to application of the mixture to a surface.

Abstract: A burner and process for the partial oxidation of pumpable slurries of solid carbonaceous fuels in which the pumpable slurry of solid carbonaceous fuel in a liquid carrier is passed in liquid phase through one passage of a burner comprising a retracted central coaxial conduit, an outer coaxial conduit with a converging orifice at the downstream tip of the burner and, optionally, an intermediate coaxial conduit. The downstream tips of the central conduit and the intermediate conduit, if any, are retracted upstream from the burner face a distance of respectively two or more say 3 to 10 for the central conduit, and about 0 to 12 say 1 to 5 for the intermediate conduit times the minimum diameter of the converging orifice of the outer conduit at the burner tip. A pre-mix zone is thereby provided comprising one or more, say 2 to 5 coaxial pre-mix chambers in series.

Abstract: A plural component spray gun which can be used as an air atomizing gun for atomizing material at the nozzle for external mixing with a catalyst, and, which is convertible to airless operation. The spray gun has a nozzle body which incorporates passageways for delivering atomizing air and a fluid component to a mixing chamber at the outlet to one of a plurality of nozzles attached to the nozzle body. To convert the spray gun to airless operation, the nozzles are removed, and a sleeve inserted in the air atomizing chamber. One of the nozzles is replaced with an airless type and they are reattached to the gun body. The replaced nozzle has a centrally located annular flange which extends into the air atomizing chamber to hold the sleeve insert in the chamber to seal the air passageway. The centrally located annular flange on the replaced nozzle also includes an annular cavity, into which an insert having an orifice restriction can be inserted for increasing the velocity of the component during airless operation.

Abstract: The invention comprises an atomizing spray nozzle having an expansion chamber containing an impingement plate, or table and wherein a flow of liquid is introduced as a high velocity stream which strikes the impingement table and breaks up into finely atomized particles which are struck by a high velocity air stream in a direction at an angle to the direction of the liquid stream to further atomize the liquid particles as the mixture atomizes adjacent the impingement table and passes into a mixing area in the barrel of the nozzle. The nozzle includes a jet forming inlet for the liquid aimed from one side of the nozzle at the impingement table in the expansion chamber, an air inlet orifice member secured in one end of the nozzle at an angle to the liquid inlet and at one side of the expansion chamber with the nozzle barrel at the downstream side of the expansion chamber and an exit orifice member secured in the open discharge end of the barrel.

Abstract: The invention comprises an atomizing spray nozzle containing multiple restrictions to the flow of an air and water mixture through the nozzle created by contours in the stem in relation to the orifice and having a whirl chamber in the nozzle body where injected air induces disturbances in the liquid to create effective atomization prior to the first restriction which creates a negative pressure beyond the restriction and which is repeated at additional restrictions thus resulting in a repeated depressurization and sudden expansion to obtain a finely atomized mixture before reaching the orifice, with a final restriction at an outlet that may take the form for a flat spray or one for a narrow round spray.

Abstract: An inert solvent containing a coating material to be reacted is mixed with a liquid activator which is fed through an orifice into contact with the coating material and then into a mixing chamber. The mixing chamber is provided with special agitating means for obtaining effective mixing of the coating material with the activator. This activating means may comprise a chain held in place within the mixing chamber with washers at either end of the chamber. The mixed coating material and activator is then fed through a conduit into an applicating gun which applies the coating on a container or transportation vehicle.

Abstract: A nozzle and method for generating foam is disclosed which includes a nozzle body, a nozzle inlet, an orifice, a gas inlet, an impingement pin and a nozzle outlet. The nozzle body has upstream and downstream ends and an inner wall defining a passage within the nozzle body. The nozzle inlet at the upstream end of the nozzle body permits introduction of a liquid foam producing agent into the passage. The foam producing agent then passes through the orifice, thereby forming a stream. This stream is directed past the gas inlets in the nozzle body to aspirate gas into the passage. The stream then impinges against the impingement pin which is disposed transversely across the passage. At least the upstream half of the cross-section of the impingement pin is annular so that the impingement pin disrupts the flow of the stream and splits it into secondary streams.

Abstract: An ejector comprising a housing (30, 81) and an ejector insert (40, 82) received therein to form a venturi which is eccentric with the housing, and a muffler-ejector assembly (25), including such an ejector (80), so mounted that the inlet axis (78) of the exhaust tube (71) may be made to approach or even coincide with the axis (59) of the casing (60) without enlarging the lateral dimensions of the latter.

Abstract: In order to prevent the accumulation of carbon on the pintle of a gas turbine engine fuel burner, the pintle has a hollow base and inlet holes so that a small mass flow of compressor delivery air can enter the hollow base and flow over its interior surface.

Abstract: A venturi type mixer that produces an aerated water jet for spas, therapy pools, swimming pools and the like, is provided with a pulsating action by means of a flow impeding spoiler that momentarily and repetitively disturbs the water jet that is projected into the mixing chamber. Disturbance of the jet effectively disables the vacuum produced by the venturi action to thereby cause discharge of a water stream of decreased velocity having considerably less entrained air. The spoiler is moved into and out of the water jet by means of an automatically reciprocating piston that is operated by a combination of a spring and the vacuum produced by the venturi action. Alternatively the spoiler may be rotated into and out of the path of the jet by a water driven rotor, or the jet orifice may be rotated relative to a fixed spoiler.

Abstract: An atomizing unit comprises a plurality of nozzle-members, each of which is capable of producing a compressed air flow entraining a number of minute liquid-particles. The nozzle-members are mounted on the unit in a manner such that respective tube-like flows of two-phase discharged from the respective nozzle-members further violently collide among them at a point forwardly spaced by a predetermined distance from a leading head of the unit. By the arrangement mentioned above, minute liquid-particles entrained by the respective tube-like flows are further split into a still large number of much finer liquid-particles and then further forwardly dispersed as a stream of mist by a secondary flow produced at the point mentioned above.

Abstract: A versatile portable fluid dispensing, manually controlled gun with instant selectivity of hard, soft or foam flow of liquids, either of water or a solution, with or without entrainment of fluid such as air and with or without a foaming flow of the fluid whereby each of a great many different relations of discharge can be selected with a versatile solution discharge nozzle that provides selectively changeable liquid solid jet streams or soft flows of liquids with or without entrainment of a fluid such as air; and selectively with entrainment of air operable either with or without a foaming agent in the liquid. Instant controls interchangeably operated provide any one of twelve different dispensing relations with water alone or with a chemical foaming agent, each supplied separately or together as a mixture; in each of these phases, namely jet flow, soft flow and foam flow.

Abstract: The present invention relates to a burner for combustion apparatus employing a so-called multistage atomization system in which a tip of a nozzle is blocked, an outer peripheral surface has an inclined portion formed therein, fuel is forced in a string-like pattern through a multiplicity of outflow passageways formed on the inclined portion while at the same time the flow of air is substantially brought to intersect thereto at right angles for atomized disintegration and the fuel flowing along the inclined portion is formed into substances in the form of film and subject to filmed disintegration at the top of a frustoconical portion.

Abstract: The invention relates to a dispensing head for apparatus for dispensing beverages and especially gaseous beverages.The head comprises a spout formed of a tubular element 10 of which the internal section increases progressively from the orifice for input of diluting liquid to the discharge orifice and a throat arranged below said tubular element in a position slightly inclined with respect to the horizontal, the passage of the jet of concentrated liquid flowing substantially vertically, being situated in front of the throat and downstream of its end.

Abstract: A urethane foam gun is disclosed in which polyisocyanate and polyol feed streams are mixed with air under pressure within the gun with vigorous intermixing in the outlet nozzle to a condition ready for application. Once applied the foam polymerizes in place. The gun is formed with an integral block design in which dual plug valves are mounted for control of the streams. Actuation is achieved by a trigger valve mounted on the gun, and a second gun-mounted valve controls a solvent flush for cleaning to avoid polymerization within the gun itself. The gun is useful for foam-in-place applications, such as protective packaging.

Abstract: An apparatus for reducing hydrocarbon fuel requirements for Haber Ammonia Synthesis by the supply of selected gases to the second reformer of such system, comprising a first cylindrical conduit, a second smaller coaxial cylinder inside of the first conduit, forming a first annular space therebetween, the downstream end of said second conduit closed, and a plurality of circumferentially-spaced orifices in the wall of said conduit upstream of the closed end. Means to supply air at selected pressure P1, temperature and flow rate to the first annular space, means to supply at least methane at a pressure P2 greater than P1, to said second conduit, so that the concentration of methane in the air will be less than the lower explosive limit, and means to shield the jets of gas from the orifices in the second conduit, as they flow radially outwardly across the annular space.

Abstract: A multiple flavor post-mix beverage dispensing head has a nozzle, a diluent outlet in the nozzle, a plurality of discrete concentrate outlets in the nozzle, a spout under the nozzle, an outlet from the spout for discharge of beverage from the head, and the improvements of a downward facing open concavity in the center of the nozzle and bounded by a downward facing sharp edge forming the lowest part of the nozzle, a convex bottom nozzle surface extending upwardly from the concavity sharp edge, a sharp edged and squared counterbore between the convex bottom nozzle surface and a restrictor bore in each of the concentrate outlets, sharp edges on all surface intersections on the nozzle bottom surface and rounded intersections between all surfaces in the interior of the spout, an included angle between the bottom surface of the nozzle and inner surface of the spout which is divergent toward the centerline of the spout and which turns into the spout outlet, and a toroidal diluent flooding chamber between the nozzle

Abstract: A foam generating and spraying apparatus adapted to receive a quantity of polymeric resin and a foaming agent therefor, and emit the foamed product thereof, comprises a resin conduit having an inlet and an outlet end; a foaming chamber having an inlet and an outlet end being disposed coaxially with respect to the resin conduit; a resin inlet upstream of the resin conduit for admitting a quantity of pressurized polymeric resin thereto; a foaming agent inlet upstream of the foaming chamber for admitting a quantity of pressurized foaming agent thereto; a mixing chamber downstream of both of the resin conduit and foaming chamber; and, a spray member disposed at the outlet end of the resin conduit for establishing a hollow cone spray of resin, and angularly directing that spray against the walls of the mixing chamber. Methods for generating a foamed polymeric resin and the products produced thereby are also disclosed herein.

Abstract: A forced air nucleating jet gun assembly comprised of a nozzle body designed to atomize material at the nozzle for external mixing with a catalyst which is atomized in the handle body of the gun assembly. The nozzle body incorporates passageways for delivering atomizing air deflected counter to the path of a material delivered to a fluid tip. The fluid tip assembly is designed to deflect atomizing air into the path of the material for low-pressure delivery of resin to the jet. An air control valve is incorporated into the nozzle body and is operated sequentially with the material valve to purge the fluid tip prior to delivery or supply of material for atomizing by air. The forced air nucleating system incorporated in the nozzle body delivers resin and air or atomized resin through the fluid tip external mixing with catalyst.

Abstract: Methods and apparatus for the topical treatment of vegetation or terrain therefor, comprising expressing a multiplicity of discrete foam structures with the plant agent composition as a spray to provide a treated surface with controlled application of plant agents e.g. using the foam structures as markers.