Abstract: A micromachined, high Reynolds number, sub-millisecond liquid mixer for the study of chemical reaction kinetics. This bulk micromachined silicon mixer is capable of initiating and quenching chemical reactions in intervals as short as 100 .mu.s. The mixer chip contains two tee mixers connected by one channel which serves as a reaction chamber. Each tee mixer consists of opposing channels where liquids meet head-on and exit into a third channel forming the base of a "T".

Abstract: Disclosed is a process for forming a compound by mixing at least two components, which comprises the steps of:circulating a specific component along a circulation route; andmixing the specific component with a second component different from the specific component by flowing the second component different from the specific component in the middle of the circulation route under specific mixing conditions to form a compound during circulation,wherein the mixing conditions are controlled so that the mixing conditions are changed accompanied with increase in a formation amount of the compound.

Abstract: A device for mixing very small quantities of liquids comprises at least one mixing element with at least one inlet channel and at least one outlet channel; at least two microchannels issue from the inlet channel, all such issuing channels lying in a single branching plane. The microchannels are led to a confluence element in a plane which is rotated 90 degrees in relation to the branching plane. The mixer element is arranged in the planar surface of a substrate, the planar surface being hermetically sealed by a covering. The invention concerns a device for mixing liquids in which mixing is effected by the flow of the liquids to be mixed through narrow channels.

Abstract: An homogenization valve design yields improved homogenization efficiency. The length of the valve surface relative to the valve seat or land is controlled so that the overlap is limited. This allows convergence between turbulent mixing layers and a homogenization zone. Preferably some overlap is provided, however, to contribute to the stability of the valves and avoid destructive chattering.

Abstract: An in-line mixing system and method for mixing one or more paint fluid subcomponents. The system includes subcomponent input lines (20) connected to a reducing manifold (22). An on/off solenoid valve (28) in each line is arranged to allow or prohibit fluid from entering the reducing manifold. The reducing manifold includes multiple input passages that converge to form a single output passage. A flow meter (26) is in communication with the manifold output passage to measure the flow of subcomponent fluid through the manifold. Using the flow meter, a control system (30) causes the input line solenoid valves to open and close to create a slugwise line of subcomponent fluids passing from the manifold output passage. From the reducing manifold, the slugwise line enters an integrator (32) where the subcomponents are partially mixed. A static mixer (34) connects to the output of the integrator to thoroughly mix the fluids.

Abstract: A method and device are described for the production of foams from two-component reactive mixtures using carbon dioxide as expanding agent, by mixing at least one of the reactive components with carbon dioxide under pressure. That mixture is then mixed with the other reactive component(s) to form a foamable reactive mixture, which is expanded and cured to form the final product. The foamable reactive mixture is expanded to ambient pressure through at least one fine-meshed screen (21a, 21b, 21c).

Abstract: The present invention is generally directed to improved microfluidic devices, systems and methods of using same, which incorporate channel profiles that impart significant benefits over previously described systems. In particular, the presently described devices and systems employ channels having, at least in part, depths that are varied over those which have been previously described. These varied channel depths provide numerous beneficial and unexpected results.

Abstract: A static mixer which is adapted for disposition in a pipe having a fluid flow direction including a circumferential flange radially inwardly extending from the internal pipe surface and in turn having at least a pair of opposed flaps extending therefrom and inclined in the direction of the fluid flow.

Abstract: A static mixer for mixing substances under either laminar flow or turbulent flow conditions, or for mixing substances having a combination of laminar and turbulent flow conditions. The static mixer includes a first conduit operatively connected to a series of two or more mixing segments. The mixing segments include one or more splitting components for dividing the fluid stream into two or more flow streams, two or more flow branches wherein each of the flow branches receives one of the flow streams and wherein each of the flow branches operatively changes the cross-sectional shapes of their respective flow streams in preparation for layering and stacking the flow streams to each other, and a second conduit for receiving and stacking the two or more flow streams creating a layered unified fluid stream.

Abstract: The mixer tube for low viscosity fluids contains plate-shaped elements which at one or at several points of the tube partially cover or block off its cross-section. The constrictions left free through the elements each comprise at least one gap-shaped region, with a longitudinal extent of this gap extending from tube wall to tube wall through the tube axis or from the tube wall through the tube axis to a second partial region. The gap subtends an angle with the tube axis in the range between about 20.degree. and 60.degree., preferably between 35.degree. and 45.degree.. A mixing path is provided after the constriction in the direction of flow. The fluid to be mixed can contain solid substances in suspension.

Abstract: A method of obtaining a free disperse system in liquid which produces a controlled hydrodynamic cavitation by regulation of constriction ratio, volumetric flow rate, and degree of cavitation parameters. Selection of the parameters with regard to the properties of components of the fluid make it possible to effectively treat the components having a variety of physio-chemical characteristics. The invention further relates to the construction of a cavitation device wherein the geometry of a flow-constricting baffle body effectively increases the degree of cavitation to substantially improve the quality of an obtained free disperse system.

Abstract: A static mixer conduit comprises a longitudinally elongated conduit having tabs that are arranged with respective first edges adjacent the conduit wall, and respective opposed second edges that are spaced radially inwardly from the conduit wall. These tabs are operable as fluid foils so that with fluid flowing through the conduit, greater fluid pressures manifest against the tab's upstream faces relative to reduced fluid pressures against their downstream faces. The resultant pressure difference in the fluid adjacent, respectively, the mutually opposed faces of each of the tabs causes a longitudinal flow of fluid through the conduit over and past each said tab, to be redirected. As a result of that redirection, there is introduced a radial cross-flow component to the longitudinal flow of fluid through the conduit.

Abstract: A method and device are described for the production of foams from two-component reactive mixtures using carbon dioxide as expanding agent, by mixing at least one of the reactive components with carbon dioxide under pressure. That mixture is then mixed with the other reactive component(s) to form a foamable reactive mixture, which is expanded and cured to form the final product. The foamable reactive mixture is expanded to ambient pressure through at least one fine-meshed screen (21a, 21b, 21c).

Abstract: A reagent pack for keeping fluids with or without suspensions mixed or suspended upon rocking. The reagent pack has at least one chamber divided into separate sub-chambers with a throat region between them defined by baffles for agitation of suspended reagent during rocking of the reagent pack. A continuous lid sealable to the pack has membrane sealed apertures in the lid for allowing access to the underlying chambers and sub-chambers by withdrawal needles. A tray is configured to hold multiple side-by-side reagent packs on respective slides that slide in and out for insertion and withdrawal of the packs. During operation, the tray and associated packs are rocked such as by being periodically inclined with respect to horizontal, providing reagent agitation.

Abstract: There is provided a new static mixer with a low pressure loss and a high agitating/mixing efficiency. The mixer comprises in the midst of a fluid passage a mixing body having a larger diameter than the fluid passage. The mixing body has a mixing body cylinder portion, an inlet hollow portion having an inlet port fitted to the cylinder portion, and a outlet hollow portion having an outlet port. An impingement cylinder having an diameter larger than a diameter of the outlet port is disposed within the mixing body such that its opening is positioned in a confronting relation with the inlet port. A plurality of recesses are provided at at least one of an inner side portion of bottom of the impingement cylinder, an inner surface portion of the hollow inlet port, an inner surface portion of the hollow outlet port, an inner circumferential portion of a cylindrical portion of the impingement cylinder, and an inner circumferential surface portion of the cylindrical portion of the mixing body.

Abstract: A container for mixing two or more kinds of granular medicines or the like together without breaking their granular shapes. Prisms are arranged in the container in lines on the bottom in such a manner that their vertical edges are directed toward the relative side walls of the container and the prisms arranged in each line are located at intermediate positions between the adjacent prisms arranged in the next line. When the container is inclined, objects to be mixed together, which are inserted in the container, travel on the bottom of the container and are divided into two flows by an edge of each of the prisms arranged in a line, and the objects to be mixed together which flow along opposed sides of each of the prisms are joined together in the intermediate portions between the adjacent prisms, and the joined objects are again divided into two flows by an edge of each of the prisms arranged in the next line. The objects are mixed together by repeating such an action.

Abstract: A continuous static mixing apparatus includes mixing disks. Each of the mixing disks has a set of symmetrically distributed nozzles therein that accelerate the flow and that create a mixing turbulence in the flow. Typically, the mixing apparatus combines the outlet flows of the mixing disks to provide a collision therebetween and, thus, increased turbulence and mixing. Communication passageways connect the material supplies to the mixing apparatus and direct the materials through the mixing disk. The materials may be combined either upstream or downstream of the mixing disks. An eductor may be used to combine the materials upstream of the mixing disks.

Abstract: An homogenization valve design yields improved homogenization efficiency. The length of the valve surface relative to the valve seat or land is controlled so that the overlap is limited. This allows convergence between turbulent mixing layers and a homogenization zone. Preferably some overlap is provided, however, to contribute to the stability of the valves and avoid destructive chattering.

Abstract: Emulsification is achieved by directing a jet of fluid along a first path, and interposing a structure in the first path to cause the fluid to be redirected in a controlled flow along a new path, the first path and the new path being oriented to cause shear and cavitation in the fluid. A hot emulsion is stabilized immediately after formation by causing the emulsion to flow away from the outlet end of an emulsion forming structure, and causing a cooling fluid to flow in a direction generally opposite to the flow of the emulsion and in close enough proximity to exchange heat with the emulsion flow.

Abstract: The multi-component mixer is characterized by great simplicity of manufacture, use and mounting in the installation. A semi-rigid tube is fitted onto two joining pieces held by two collars. Components of the product to be mixed enter the tube at one end, and after stirring takes place, the product, ready to use, is discharged at the other end.

Abstract: A reagent pack for keeping fluids with or without suspensions mixed or suspended upon rocking. The reagent pack has at least one chamber divided into separate sub-chambers with a throat region between them defined by baffles for agitation of suspended reagent during rocking of the reagent pack. A continuous lid sealable to the pack has membrane sealed apertures in the lid for allowing access to the underlying chambers and sub-chambers by withdrawal needles. A tray is configured to hold multiple side-by-side reagent packs on respective slides that slide in and out for insertion and withdrawal of the packs. During operation, the tray and associated packs are rocked such as by being periodically inclined with respect to horizontal, providing reagent agitation.

Abstract: There is disclosed a static mixer for intimate mixing of granular solids, a solids flow controller and a solids transfer tube which are useful to mix polycrystalline material with dopant solids, and to feed the resultant mixture continuously and accurately into a modified Czochralski-type furnace for growing single crystal material. The static mixer is a series of conical funnel plates interspaced by thieving divider plates that are formed by a plurality of triangular V-shaped, radial sectors. Contiguous to the static mixer is a storage hopper which has sufficient storage capacity for all the polycrystalline feed material required in a single run of the furnace. Located beneath the hopper is a solids flow controller that is a V-shaped trough which is vibrated along its longitudinal axis. At one end, the trough has a transverse baffle located with a gap between its bottom edge and the bottom of the trough that controls the rate of flow of the solids.

Abstract: The invention is an in-line mixer without moving parts, with a generally conical shear head pointed in the upstream direction within a pipe, and centered near the downstream side of an annular seating ring fastened to the inside surface of the pipe. In the upstream, slanted face, or high pressure side of the shear head, there is a series of generally circular ports bored through the shear head. The slanted face of the conical shear head extends through the center of the seating ring in the upstream direction, and is adjusted to be located very close, about 0.020 inches, to the downstream side of the seating ring. At the downstream end of the slanted face of the shear head is a first sharp, approximately 90 degree edge leading away from the inside surface of the pipe in the downstream direction, which first edge is adjusted to be located very close, about 0.004 inches, to the inside surface of the pipe.

Abstract: A liquid dispensing system generally includes a liquid pump connected to a source of pressure and an outlet tube. A first valve regulates the flow of pressurized air or gas between the source of pressure and the liquid pump. The first valve also regulates air or gas from the liquid pump to the atmosphere. A second valve may regulate the flow of liquid from the liquid pump through the outlet tube. A controller manipulates the first valve to create a pressure head in the liquid pump and then manipulates the second valve to dispense liquid. When dispensing is complete, the controller closes the second valve and manipulates the first valve to exhaust the pressure head from the liquid pump. An agitator resides in the liquid inside of the liquid pump. The agitator has a housing having a chamber for accepting an increased portion of the liquid in response to the creating of the pressure head and for rejecting such increased portion of the liquid from the chamber in response to the exhaustion of the pressure head.

Abstract: The device for the homogenization of high-viscosity fluids comprises static mixing elements (11, 12) and possibly filter elements (6). These elements of the device are arranged in a sleeve (13) along the sleeve axis (15). According to the invention the sleeve is composed of several parts; the elements of the device are monolithic structural members (10, 20; 60) and all or a plurality of these structural members have flange-like or nose-like parts (4; 4a, 4b). With these parts the structural members engage so as to anchor in the sleeve region between sleeve parts and form, at the same time, parts of the sleeve. The device according to the invention is provided, for instance, as a mixing head (1) in the nozzle of an injection molding machine or as a melt mixer of an extruder.

Abstract: In a process for continuously mixing streams of at least two fluid media, in particular for use in reburning or progressive combustion and for secondary NO.sub..chi. -reduction in flue gases from industrial furnace plants an auxiliary gas stream is injected into a main gas stream by means of swirl-momentum nozzles which impart a characteristic axial impulse and an angular impulse to the fluid.

Abstract: An apparatus for fluid flow communication is disclosed which comprises a substantially tubular member having first and second opposite end portions; a first end wall secured to and closing the first end portion of said substantially tubular member wherein the first end wall has at least one first aperture extending therethrough; a second end wall secured to and closing the second end portion of the substantially tubular member wherein the second end wall has at least one second aperture extending therethrough; an intermediate wall disposed within the substantially tubular member intermediate the first and second end walls and having a circumferential outer edge; and support means disposed within the substantially tubular member for fixedly securing the intermediate wall relative to the inner surface of the substantially tubular member whereby the circumferential outer edge of the intermediate wall and the inner surface of the substantially tubular member define a substantially annular passage.

Abstract: The invention relates to a device (2) designed and adapted to bring an in per se known mixing body (11) to correspond to a fluid flow area which e.g. is defined by a pipeline (1,3) wherein a two-phase fluid may flow, said fluid being desired to be mixed in connection with sampling (4), and to withdraw the mixing body (11) easily and rapidly in order to release said fluid flow area. For this purpose, the device according to the invention comprises a valve housing (6) formed for fluid-tight connection to said pipeline in an area of two diametrally opposite openings (1', 1") of the pipeline, enclosing said openings. Within the valve housing (6), a sluice body (5) carrying said mixing body (11) has been displaceably arranged. The sluice body (5) and thus the mixing body (11) is displaceable between two main positions. In one main position, the mixing body (11) has been brought to correspond with said fluid flow area.

Abstract: A stationary type mixing apparatus capable of mixing fluids having high viscosity and improving mixing efficiency of plural kinds of fluids.

Abstract: A shear layer of a fluid flow has relatively large vortical structures generated by acoustic forcing from oscillations induced in a cavity closely adjacent to the flow so that these structures enhance mixing at the layer. The forcing frequency is selected by varying the dimensions of the cavity, and several cavities of different dimensions may be provided for forcing at different frequencies, including beat frequencies. The cavity provides passive, high amplitude forcing effective with a compressible shear layer due to high speed flow, including supersonic flow. Cavities of differing configuration provide forcing for fluid flow from nozzles of different geometries. The most effective enhancement is provided by particular excitation frequencies generated by a cavity having a size selected in accordance with dimensionless relations between the flow parameters and nozzle geometry.

Abstract: A static mixing device includes a disposable mixing conduit, a rigid, reusable housing for supporting the mixing conduit, and a reusable coupling for attaching an inlet of the mixing conduit to an outlet of a source of flowable components to be mixed. The mixing conduit provides a circuitous flowpath for the components between the inlet and outlet. At least two facing sheets of material (or the opposite walls of a tube), at least one of the sheets being flexible, are sealed together at interior obstructions, forming mixing stages that subdivide and recombine the stream of material. The rigid housing can be bayonet shaped or cylindrical, and forms an applicator with the flexible mixing device. The coupling can capture the inlet end of the mixing conduit.

Abstract: A device for producing a liquid emulsion of a hydrophobic and hydrophilic liquid is described. The emulsion consists of at least one hydrophobic liquid phase and at least one hydrophilic liquid phase, one of said phases being a disperse phase of the emulsion, which has a stable colloidal state with a particle size of the disperse phase of 1,000 nm or less, preferably a particle size in the range of 100 to 500 nm.

Abstract: A method of obtaining a free disperse system and a device for producing the cavitation effect is provided in which the passage of a hydrodynamic flow through a channel internally accommodating a baffle body providing a local contraction of the flow in at least two sections and forming a cavitation field downstream of the body. The ratio of velocity of the flow at each of the sections to the velocity of a free disperse system at the outlet of the channel is maintained equal to 2.1 and the degree of cavitation is maintained at a level equal to at least 0.5. A cavitation device comprises the baffle body including at least two elements providing generation of their own cavitation fields different in the degree of cavitation.

Abstract: Fluid substances, particularly substances having differing viscosities, are combined and mixed by first segmenting a flow of a first fluid material to form a flowing segmented substance matrix containing a network of voids, such as by passing the flow through a plate having a plurality of passages therethrough and a second fluid substance is discharged into the segmented flow at a position which is substantially centrally disposed with respect to a cross-section of the segmented flow to combine the substance and additive, and then, the combined flow is mixed. The combined flow may be compressed and then mixed or may be compressed and then expanded prior to mixing. Additionally, a flow of a substance from a source such as an extruder may be partitioned into a plurality of streams and then, at least one of the streams is treated as specified above.

Abstract: The device for the continuous monitoring of the correct proportioning and mixing of at least two fluids comprises a static or dynamic mixing device ending in a nozzle, wherein within the nozzle, the cross-sectional area of the stream or flow after the last mixing element of the static mixing device or at the end of the dynamic mixing device, as seen in the direction of flow, is substantially reduced compared to the cross-sectional area of the mixing part of the mixing device. This reduction is realized either by an internal volume displacing means or by reducing the diameter of the nozzle after the last mixing element of the static mixing device or at the end of the dynamic mixing device, and the nozzle being at a maximum transparency at the point of scanning. Such devices allow a more accurate monitoring since the greatest possible part of the stream of the mixed material can be more easily viewed or sensed.

Abstract: An apparatus for dispensing dry ingredient has a plurality of containers, each for a different ingredient. Each has a body having an internal chamber, and a port for dispensing the ingredient, which is arranged gravitationally below the chamber when in use. Each container has at least two baffles adjacent the port. The baffles are inclined and define a passageway through which the ingredient may pass. The passageway is sized and the baffles are inclined such that the ingredient rests upon the baffles. The apparatus also includes a collection stage that is arranged relative to each of the plurality of container ports so that ingredient dispensed from each port is deposited upon the collection stage. The apparatus also includes a vibrator for exciting at least one of the baffles of each container such that the ingredient is urged to pass through the respective passageway and out of the chamber.The apparatus typically further includes a controller for activating and deactivating the vibrators.

Abstract: The invention is an in-line mixer without moving parts, with a generally conical shear head pointed in the upstream direction within a pipe, and centered near the downstream side of an annular seating ring fastened to the inside surface of the pipe. In the upstream, slanted face, or high pressure side of the shear head, there is a series of generally circular ports bored through the shear head. The slanted face of the conical shear head extends through the center of the seating ring in the upstream direction, and is adjusted to be located very close to the downstream side of the seating ring. At the downstream end of the slanted face of the shear head is a first sharp, approximately 90 degree edge leading away from the inside surface of the pipe in the downstream direction, which first edge is adjusted to be located very close to the inside surface of the pipe.

Abstract: A method and apparatus for distributing water in the pipeline is set forth. The pipeline water collects in the bottom and flow along the pipeline. The present disclosure sets forth a set of N tubes which have relatively small inlet and outlet openings. The several tubes joined at the inlet end, typically by tacked welding thereby defining an inlet end to gather up all of the flowing water in the pipeline which is then directed along the tubes. The outlet ends of the tubes terminate at elevated locations in the pipeline so that water droplets are entrained at selected heights in the pipeline. In one form upstream and downstream transverse members support the tubes.A fluid flow diffuser for installation in a pipeline in advance of a fluid sampling device is set forth.

Abstract: Two fluids having different temperatures are to be mixed while supplying one fluid (A) through a main pipe (1) and conducting the other fluid (B) from a secondary pipe (2) into the main pipe. A mixing device (6) comprises a connecting branch which extends essentially radially into the main pipe (1) from the secondary pipe (2) and along whose outside the first fluid (A) may pass and which is formed with at least one nozzle-shaped aperture through which the second fluid (B) can be conducted into and mixed with the passing first fluid. The connecting branch comprises at least one through channel (13) extending transversely of the connecting branch and suitably in parallel with the longitudinal extent of the main pipe (1) and through which part of the first fluid can pass in a central partial flow.

Abstract: A flotation device includes an injector having a flow channel with a variable cross sectional area with respect to the direction of fluid flow through the injector. The injector introduces a mixture of gas and liquid into the device. The injector flow channel has repeated narrowings and widenings in the direction of fluid flow through the injector.

Abstract: A system for supplying compressed air and foam solution to produce a fire stream comprising an aerated foam includes a motionless mixer having an in-line chamber wherein the air and foam solution are mixed thoroughly in a short distance with a minimal pressure drop to produce an effective firefighting foam.

Abstract: Apparatus for the simultaneous production of preforms consisting of polyethylene terephthalate (PET) fed and distributed to a plurality of cavities. In order to reduce the occurrence of acetaldehyde formation in a cavity, for example, a heated distributor block used in the production of preforms of the PET material, the material flowing through a channel is subjected to additional turbulence. To this end, an element, preferably of metal, is installed in the channels, such element being provided with sets of radial spokes which are azimuthally offset in relation to each other in the axial direction. Besides inducing turbulence, such spokes act as homogenizing elements serving to diffuse heat over the cross section of the flowing process material.

Abstract: A blending apparatus, inexpensive in construction and requiring a minimum of recirculation, is today essential for economical and thorough blending of particulate material, for example, plastic pellets of virgin material and of pellets that have been reconstituted from recycled material. Construction of the blender is low in cost because the customary receiver, and its piping, conventionally installed below the blender are eliminated. The novel convex baffle serves:(1) as a termination surface for the conventional perforated blending conduits; and (2) retains a toroidal annular volume of particulate material in position between the upper outer surface of the baffle and the inside wall of the blender. The particulate material passes through the blending tubes, drops into the blending area below the convex baffle, whereupon the small amount of particulate material in the toroidal block or "keystone joist" is released to proportionally blend with it.

Abstract: A housing containing a fuel flow path contains an alloy core formed in two halves. Each half core includes rectangular support walls 1, 2 and 3 arranged in a T configuration. A pair of wedge-shaped elements 4 and 5 extend from each of the two co-planar walls 1 and 2 parallel to the intermediate wall 3 to cause turbulence in the fuel flow. The core is formed from an alloy which comprises tin, antimony and a greater percentage of mercury than lead. A trace amount of platinum may also be included.

Abstract: A device and method for inducing turbulence in the flow of a fluid in the course of a continuous flow process are disclosed. The device comprising a series of chambers extending along an axis. Each chamber is defined by (1) a cylindrical conduit that extends along the axis and between opposite ends and has a constant internal diameter along the axis; (2) a frusto-conical diffuser that has an internal diameter increasing along the axis from a reduced internal diameter at an inlet of the diffuser to an internal diameter substantially equal to that conduit at an outlet of the diffuser; and (3) a frusto-conical confuser that has an internal diameter decreasing along the axis from an internal diameter substantially equal to that of the conduit at an inlet of the confuser to a reduced diameter at an outlet of the confuser. The conduit, diffuser and confuser of each chamber are arranged coaxially and the cylindrical conduit extends from the outlet of the diffuser to the inlet of the confuser.

Abstract: Distribution of a fluid additive through multiple passages across the cross section of a pipe carrying molten/fluid polymer wherein the polymer flow is distributed across the cross section of the pipe provides uniform distribution of the fluid additive when the passages are directed in the downstream direction of flow and substantially parallel to the longitudinal axis of the pipe carrying the polymer. This device is advantageous for mixing of two or more fluids independent of the viscosity differences.

Abstract: A process for homogenizing essentially immiscible liquids for forming an emulsion comprises the steps of (1) guiding an inner phase towards a mixing region under a given high pressure; (2) guiding an outer phase towards the mixing region under a relatively lower pressure; (3) forming jets in the form of thin, flat sheets with the inner and outer phases; (4) colliding the sheets-like jets of the inner and outer phases substantially in a counter-current and thus forming a phase mixture; and (5) subsequently withdrawing the phase mixture from the mixing region. The apparatus includes two oppositely disposed expansion valves through which the respective phases are fed into the mixing region. The expansion valves are formed of flat-conical valve seats and corresponding valve cones. The mixing region is defined centrally between the two expansion valves. The emulsion is withdrawn directly from the mixing region through an outlet valve, in which it may be exposed to further fine mixing.

Abstract: A fluid mixer has a plurality of inlet conduits extending into a chamber and being directed toward a common location on a first surface of the chamber.

Abstract: A chemical mixing chamber for use in the plating industry is disclosed. The device is particularly useful in the mixing of long chain molecule polymers with water, to break up the polymer in order to provide greater surface area. This is advantageous in mixing the polymer material with solutions of metal acid residue, as the resulting greater surface area of the polymer provides for better electrostatic attraction to the ions in solution. The present invention provides for the efficient breakup of the polymer material, in a device having no moving parts. The water inlet and water-polymer outlet are coaxial, thus providing for ease of installation in a line. The device may be constructed of standard parts and components, and may be formed of various materials (PVC plastic,, stainless steel, iron or other metal pipe,, etc.) as required for the particular environment, and may be used as a mixing chamber for various types of fluids or liquids in various industries and environments.

Abstract: A stationary fluid mixer in a flow conduit (7) has at least two baffle plates (10) secured to the wall of the conduit. The baffle plates are wider on the inside of the flow conduit than along the conduit wall, and they form an angle W of 10.degree. to 45.degree. relative to the main flow direction Z. The baffle plates can be given different orientations, and the projection FZ of the baffle plates in the main flow direction through the conduit is between 5.degree. to 30.degree. of the conduit cross-section F. This provides efficient mixing of the fluid in a simple manner.