Abstract: Various nozzles, components of nozzles, and methods, materials and devices for making them are disclosed.

Abstract: A spray nozzle system includes a spray tip having an elongated slot-shaped discharge opening for defining a flat fan spray pattern that subtends a wide angle, a cap body carrying the spray tip in fixed relation thereto and adapted to attach the spray tip to a supply fitting for tapping a supply of material to be sprayed in fixed aligned relation thereto and a flow regulating insert carried in the spray tip for connecting the spray tip to the supply of material to be sprayed and for controlling the amount of flow through the nozzle.

Abstract: The invention relates to a device for spraying water, provided with a seal support (21) arranged between the body (1) and the perforated sheet (23) and in contact with the above. The seal support is mounted such as to be able to be removed from the body (1) with the joint (20). The above finds application in the production of non-woven materials.

Abstract: The invention relates to an improved mixing arrangement for, primarily, moving bitumen in steam from sources of such bitumen and steam to a reactor or coker for further processing of the bitumen into petroleum products. The invention provides a main conduit connected to an atomizing nozzle mounted in a wall of the reactor and first and second conduits for flowing bitumen and steam respectively into the main conduit. The first conduit is angled relative to the main conduit at an acute angle of about 45° and the second conduit is angled relative to the main conduit at an acute angle of about 30°. The second conduit is positioned upstream of the first conduit by a short distance of about 23 mm and may be angled radially relative to the first conduit by any angle, although a 90° angle is preferred.

Abstract: An assembly for distributing particulate material comprising a blower assembly preferably removably mounted on a mobile platform and structured to generate a forced flow of air along a flow path and through a manifold assembly connected to a supply of material being distributed. The manifold assembly includes a receiving segment incorporating a Venturi section facilitating the introduction of the particulate material into the forced air flow passing through a discharge conduit. The discharge conduit preferably has an extended length to facilitate distribution of the material to a plurality of locations in a variety of different environments. An applicator is selectively attached to the discharge conduit so as to facilitate distribution of the particulate material to a substantially confined space, such as a potted plant.

Abstract: A liquid sprayer includes a casing (1) having a flow-through channel composed of sequentially joined inlet portion (2) formed as a converging tube, a cylindrical portion (3) and an outlet portion (4) formed as a conical diffuser. A length of cylindrical portion (3) is not less than a radius thereof. A cone angle of the diffuser forming the outlet portion (4) of the flow-through channel is greater than a cone angle of the converging tube forming the inlet portion (2) of the same channel. Alternatively, the converging tube forming the inlet portion of the flow-through channel is made conoid-shaped. Implementation of the liquid sprayer allows steady-state fine-dispersed liquid flow to be generated at the minimal energy consumption.

Abstract: A multi-component fluid mix ratio check nozzle includes a base engageable with a multi-component fluid dispensing gun for receiving fluid components dispensed from the gun. At least two hollow extensions extend from the base, wherein each of the extensions provides a passageway for at least one of the components of the multi-component fluid without mixing with the other fluid components of the multi-component fluid. In one embodiment, the mix ratio check nozzle forms part of a kit including a fluid flow adjusting means for adjusting the mix ratio of the fluid components.

Abstract: An ejector having an ejector body integrally formed with a nozzle having inlet and outlet ends, a diffuser having inlet and outlet ends and a suction passage defining a suction port between the outlet end of the nozzle and the inlet end of the diffuser. The nozzle and diffuser define fluid passages having a rectangular cross section or a circular cross section in which the narrowest portion of the fluid passage of the nozzle defines a throat. The diffuser has a diverging portion which diverges to have a divergence angle of 5–10 degrees in case of a two dimensional ejector or 3.5–6.5 degrees in case of a three dimensional ejector.

Abstract: An attachment for a handheld dryer includes a shell and a dryer barrel-receiving portion. A first passage is defined between the shell and the dryer and terminates in a shell inlet defined between the shell and the dryer barrel. The present attachment may be useful to increase volumetric flow and/or velocity of flow from a handheld dryer.

Abstract: A rotary sprinkler having an adjustable arc segment whose angular extent and absolute direction relative to the ground are represented by an arc indicator, which arc indicator may comprise a band whose visible length represents the angular extent and whose position on the sprinkler points to the direction. The sprinkler may have the arc segment adjusted by a movable arc limit stop that is coupled to a toggle member only at drive reversal, and the sprinkler may be converted to full circle operation by raising the arc limit stop relative to a cooperating trip tab. A buckling spring assembly used to shift the drive comprises a compression spring held between two spaced pivot members, and the drive can be built in continuous and intermittent drive versions by replacing a few normal rotary gears with multilated gears. A friction clutch having asymmetric teeth for smooth operation prevents damage to the drive during forced nozzle rotation.

Abstract: Disclosed herein is a fast response fluid flow control valve/nozzle that combines the technology used to rupture the frangible discs found in pressurized container-based fire protection/suppression systems with that found in fixed pipe spray/sprinkler systems. The apparatus' design projects a small, localized pressure wave at the underside of a frangible disc that is sufficient to rupture the disc in a very rapid manner. The present invention generally comprises an assembly of six primary components; a chamber base, a jet core threaded into the chamber base, a commercially-available rupture/frangible disc assembly, a disc retention ring, a nozzle port threaded onto the chamber base to hold the retention ring and rupture disc against the jet core and to tie the components together as a unitized assembly, and a pressure cartridge actuator.

Abstract: The present invention relates to a very high solid content contact adhesive (VHS) which has a higher solid content than previously thought attainable in the prior art without increasing the viscosity beyond operable levels. Additionally, the present invention provides a VHS application device which allows substantially more uniform application of the VHS than was previously attainable.

Abstract: A fire fighting adapter that converts a conventional back pack blower, which has a discharge tube with a free end through which blown air is provided, into a water and foam fire fighter. The adapter includes a housing and a diffuser unit. The housing attaches to, and communicates with, the free end of the discharge tube of the conventional back pack blower to receive the blown air therefrom. The diffuser unit is contained in the housing, and diffuses the water and the foam to engage with the blown air from the free end of the discharge tube of the conventional back pack blower so as to be propelled by the blown air out of the housing.

Abstract: A fluid film is formed stably over a long distance from a nozzle without breaking a slit fluid jet by allowing fluid flow out from a slit to form a slit fluid jet. A crossed flow is superimposed causing a flip-flop phenomenon upon the slit fluid jet. Energy of a fluctuation velocity component of the slit fluid jet is absorbed into a vibration component of a flip-flop crossed flow so as to form a stable fluid film.

Abstract: A nozzle ejects molten metal in an ejecting direction. The nozzle has a solder-philic surface in a first region and a solder-repellent surface in a second region. The second region is located forward of the first region in the ejecting direction. Before molten metal is ejected, the peripheral edge of the liquid surface of the molten metal is held at a position located further forward in the ejecting direction than the boundary between the solder-philic surface and the solder-repellent surface. The peripheral edge of the liquid surface is thus held before being ejected so that solder drops can be ejected steadily with a uniform diameter, constant direction, and constant speed.

Abstract: A high-pressure liquid spray nozzle having an elongate nozzle body having a longitudinally extending liquid flow passage, which in the illustrated embodiment, is defined in part by a plastic liquid throttling and stabilizing insert. The insert has a liquid flow passage which includes an upstream entry section, a smaller diameter downstream approach section, and an inwardly converging throat section between the upstream and downstream sections. The upstream passageway section has a scalloped cross-sectional configuration which define a plurality of longitudinally extending flutes effective for stabilizing and minimizing turbulence in the high pressure liquid flow stream directed through the nozzle such that a more concentrated, solid liquid flow stream is discharged from the nozzle with increased velocity and surface impact force for enhanced cleaning.

Abstract: A gas wiping nozzle for a wire coating apparatus includes an inlet portion defining a converging inlet passage for a coated wire that is axially drawn through the gas wiping nozzle. A wiping portion is further included and defines a wiping passage for the coated wire, downstream and in an axial extension of the inlet passage. The wiping portion has a gas outlet surrounding the wiping passage for blowing wiping gas onto the coated wire. A protruding annular lip is arranged between the converging inlet passage and the wiping passage, and the annular lip defining a passage for the coated wire that is narrower than the wiping passage so that the gas outlet means in the wiping passage is protected by the protruding annular lip against direct contact with the coated wire which is axially drawn through the passages of the wiping gas.

Abstract: A fluid jetting device is comprised of: a plurality of chambers arranged in a matrix form; nozzles formed in the plural chambers, respectively; a fluid pressure applying portion arranged on at least one planes of the plural chambers; a plurality of fluid pool sub-streams for supplying fluids to the plural chambers; a fluid pool main stream connected to one edges of the plural fluid pool sub-streams; and a fluid supplying portion for supplying a predetermined fluid to the fluid pool main stream. The fluid supplying portion is connected to a portion of the fluid pool main stream in the vicinity of this fluid pool main stream along a longitudinal direction thereof.

Abstract: A nozzle assembly for connecting to the outlet of a fluid flow source and providing a specified fluid flow spray includes: (a) a connector having a flow passage which extends between its ends, with the connector's upstream end being configured so as to mate with the fluid flow source's outlet, and with this connector passage at a point between its ends having a connector orifice, (b) a nozzle in the form of a fluidic insert configured so as to generate a specified fluid flow spray, (c) a housing having a fluid flow passage which extends between its ends and a rib which extends outwardly from the housing's exterior surface, with the portion of the housing's passage proximate its downstream end being configured so as to allow for the insertion and housing of the fluidic insert, and with the housing's upstream end being configured so as to be rotatably mounted in the connector fluid flow passage's downstream end, and (d) a retention cap having an opening extending between its ends that is configured to allow the

Abstract: Various nozzles, components of nozzles, and methods, materials and devices for making them are disclosed.

Abstract: A high velocity cutting nozzle for connection to the fluid supply tube of a high pressure fluid cutting system. The nozzle includes a housing which threadably connects to the fluid supply tube for receiving pressurized liquid therefrom spraying outwardly through a spray outlet bore of the housing. The housing includes a flow directing bore with a convergent inlet portion for reducing turbulence, and a bulbous outlet portion having an annular curved divergent surface and an annular curved divergent surface. An orifice disk is disposed within the housing in co-axial fluid communication with the flow-directing bore and the spray outlet bore of the housing immediately downstream of the flow-directing bore.

Abstract: The invention relates to a method and a device for distributing liquid media, in particular extinguishing fluids. 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. To achieve this, the intensity of the vortex and the proportion of fine or large droplets in the spray cone is adjusted by regulating the quantity and speed of the flow during the distribution of the extinguishing fluid in at least two sub-streams and by combining said sub-streams with at least one additional sub-stream.

Abstract: A method for adjusting the flow quantity in a fuel injector, that has an excitable actuation element, a valve-closure member that can be moved axially along a valve longitudinal axis, the valve-closure member, for the purpose of opening and closing the valve, cooperating with a fixed valve seat that is configured on a valve seat element, and a multilayer, or multiple-disk, perforated disk that is arranged downstream of the valve seat, is characterized by the fact that, in a first method step, the discharged fuel quantity of the opened fuel injector is measured and, in a second method step, a lower base layer of the perforated disk is deformed in the direction of the valve seat into a vacant flow-cross-section of the layer situated on top of it and, as a result, the vacant flow-cross-section within the perforated disk is changed until the actual quantity discharged corresponds to the predetermined setpoint quantity.

Abstract: A nozzle, especially an atomizing nozzle for an oil burner, has a housing with a nozzle opening, and a distributing insert which from the interior of the housing lies on the housing in the area of the nozzle opening and is held in the housing with the help of a deformed housing section. To better assure the functioning of the nozzle an elastically deformable element is arranged between the housing section and the distributing insert.

Abstract: An air jet type linear guide way contains an air chamber in the sliding block for injecting pressurized air therefrom along the track way so as to forcibly blow junks such as wastes, powder dust, or oil scales away before passing of the slide block assembly therefore no fear of infringement of contaminative foreign materials into the main structure of the linear guide way assembly that causes severe injury to its performance. The device of this invention will be well-suited for using in high contaminated working environments such as carpentry, stone cutting, or textiles and dyeing engineering where powder dusts are usually pervading in the air.

Abstract: A nozzle of an air supply device is accommodated in a hole (17) in a wall (15) of the device, such as to enable the nozzle to be rotated about a first axis extending through the center of the hole, and pivoted about a second axis that extends perpendicularly to the first axis through two engagement points (6a) on the nozzle. The nozzle includes two or more guide vanes or baffles in the form of tongues (2,3) that have rear deflecting parts (2a,3a) of mutually different curvature, and a front, generally flat outflow part (2b,3b). The nozzle also includes a central tongue-holding part (5) which has resilient hook-shaped engagement elements (6a) at opposite ends. The nozzle may also include a third guide vane or baffle (4) that lacks a curved deflecting part. The air flow exiting from the nozzle can be directed in different planes. The invention also relates to an air supply device provided with one or more such nozzles (1).

Abstract: A cleaning nozzle includes a mixing portion with inner walls thereof formed of quartz given smoothing treatment. As a result, the inner walls of the mixing portion have smooth surfaces. This construction effectively suppresses abrasion of the inner walls of the mixing portion, and particle generation from the cleaning nozzle. Further, the cleaning nozzle has a supply pipe surrounding a gas introduction pipe. This reduces areas of contact in the mixing portion between a gas and inner walls of the cleaning nozzle, to suppress particle generation with increased effect.

Abstract: A fuel injector, especially for the direct injection of fuel into the combustion chamber of a mixture-compressing internal combustion engine having externally supplied ignition, comprising a swirl disk having swirl channels and a central recess, and having a guide compensator inserted into the recess whose center axis is able to be inclined relative to the center axis of the fuel injector and which has a sealing fit with respect to the valve needle. Formed by a sealing-seat surface, disposed in the swirl disk, and a radial widening of the guide compensator is a sealing seat which tolerates an excursion of the center axis, preventing a swirl-free leakage flow in the same manner as the sealing fit between the valve needle and the guide compensator.

Abstract: Fluidic nozzle for emitting pressurized liquid includes a body forming mutually interconnected chambers including a liquid inlet chamber, an oscillatory chamber, and a liquid outlet chamber together defining a longitudinal axis of the nozzle. The oscillatory chamber includes a vortex section for inducing swirling of the liquid, A stream deflector is disposed in the vortex section upstream of an entrance to the outlet chamber, the stream deflector extending in a direction laterally of the axis from one wall of the vortex section to an opposite wall thereof.

Abstract: A two-medium spraying nozzle is provided with a mixing chamber arranged in a housing and with one connection duct respectively leading into this mixing chamber for the feeding of a gaseous and of a liquid medium. A mouthpiece is connected behind the mixing chamber, in which mouthpiece a rotationally symmetrical central outlet opening is provided. In the bore of the mouthpiece, a swirl insert is arranged, and the outlet opening has a diameter which corresponds to no more than half the diameter of the bore of the mouthpiece. Such a two-medium spraying nozzle is unsusceptible to clogging and is particularly suitable for atomizing low-viscosity fluids for the cooling of continuous-casting systems for the production of steel.

Abstract: A constant flow apparatus for adapting a fluid flow passing through a pipe at constant value comprises a tubular body to be mounted inside the pipe, an orifice disposed at the output end side of the tubular body, a movable needle with a flat tip portion positioned opposite the orifice, a spring supporting the needle with appropriate elastic force, and an elastic tubular sealing member having a circumferential bulging portion provided on the outside of the tubular body to cover the tubular body. The constant flow apparatus can be fixedly mounted in the pipe irrespective of the diameter of the pipe, and adapt the fluid flow passing through the pipe, preventing the needle from vibration.

Abstract: An air jet type linear guide way contains an air chamber in the sliding block for injecting pressurized air therefrom along the track way so as to forcibly blow junks such as wastes, powder dust, or oil scales away before passing of the slide block assembly therefore no fear of infringement of contaminative foreign materials into the main structure of the linear guide way assembly that causes severe injury to its performance. The device of this invention will be well-suited for using in high contaminated working environments such as carpentry, stone cutting, or textiles and dyeing engineering where powder dusts are usually pervading in the air.

Abstract: A choke for reducing spray of fuel exiting a fuel dispensing system nozzle spout having an annular frame positioned within the spout adjacent the output opening. The choke has a concentric hub connected to the frame by three, relatively narrow struts positioned equidistant around the hub. The hub has a solid, cylindrical fore section tubular aft section. A duct extends from the tubular aft section, through one strut and the frame, to the sensing port. Fuel flowing through the spout toward the output opening, it is slowed and divided into three streams by the choke, flows along the hub fore section and converges, compressed and linearly aligned, at the output opening of the spout to reduce spraying of fuel at the output opening of the spout and avoid unwanted shut-off.

Abstract: A water spreader arrangement for use in an evaporative air cooler in which the spreader includes an inlet (28) leading to generally vertical projections (38) disposed over several levels. The projections (34, 37, 38) are adapted to divide a single steam of water entering the inlet (28) into many outlet streams, all of which have a predetermined ratio of flow rates. The outlet streams can be fed to an evaporative pad of an evaporative cooler. In a preferred form, the outlet streams have substantially the same flow rate. Preferably, a cooler incorporating this water spreader arrangement would include several spreaders around the upper periphery of tho evaporative pads.

Abstract: A configurable baffle to configure fluid flow through a nozzle. To improve the quality and accuracy of processing apparatus used in the cutting, welding, and heat treating of materials, a self-aligning nozzle includes a configurable baffle. This configurable baffle can be a metallic grid (e.g., a screen) or other type of membrane (e.g., porous, permeable, etc.). During its initial use in the processing apparatus, this configurable baffle is tailored with an energy beam, such as a laser beam or plasma jet, to create an optimal fluid flow velocity profile. When the configurable baffle deteriorates from use, it is easily replaced by another baffle or by using an in situ replacement mechanism. To ensure proper alignment between the nozzle and the energy beam, mating contoured surfaces are used among adjacent components. Threaded surfaces can also be employed to assist in achieving the proper coaxial alignment.

Abstract: A nozzle (2) ejects molten metal (20) in an ejecting direction Z. The nozzle (2) has a solder-philic surface in a region P1 and a solder-repellent surface in a region P2. The region P2 is located forward of the region P1 in the ejecting direction Z. Before ejected, the peripheral edge of the liquid surface of the molten metal is held at a position A located further forward by a distance &dgr; (>0) in the ejecting direction Z than the boundary between the solder-philic surface and the solder-repellent surface. The peripheral edge of the liquid surface is thus held before ejected so that the solder drops can be ejected steadily with a steady diameter, steady direction, and steady speed.

Abstract: The guide member (1) for a liquid jet (30) to be deflected allows a liquid (3) after flowing out of a container (2) to be deflected onto a target (5; 7) which is located below the container. The deflecting takes place by means of a shaped material plate (10; 10a, 10b) which is arranged ahead of an outlet opening (20) of the container and which reshapes and further conducts the jet (30) in such a manner that the liquid is conveyed to the target at a lower end (17) of the shaped material plate. At the location ahead of the outlet opening (20), where the liquid jet (30) is incident onto the shaped material plate (10), a first and a second piece of surface (11 and 12 respectively) of the material plate form a mouth region (13) in which the first piece of surface (11) deflects the liquid (3) transversely with respect to the vertical, whereas the second piece of surface (12) is provided as a catcher for squirts. The first piece of surface merges into a channel (14) in which the liquid is guided downwards.

Abstract: A choke for reducing spray of fuel exiting a fuel dispensing system nozzle spout having an annular frame positioned within the spout adjacent the output opening. The choke has a concentric hub connected to the frame by three, relatively narrow struts positioned equidistant around the hub. The hub has a solid, cylindrical fore section tubular aft section. A duct extends from the tubular aft section, through one strut and the frame, to the sensing port. Fuel flowing through the spout toward the output opening, it is slowed and divided into three streams by the choke, flows along the hub fore section and converges, compressed and linearly aligned, at the output opening of the spout to reduce spraying of fuel at the output opening of the spout and avoid unwanted shut-off.

Abstract: A nozzle is provided which includes a nozzle body having a proximal end and an insertion end and defining an inlet orifice at the proximal end thereof and an outlet orifice at the insertion end thereof. The nozzle body is adapted to be attached at the proximal end thereof to an opening of a container and to be inserted at the insertion end thereof into an opening of a receiving vessel for dispensing a first fluid from the container into the receiving vessel from the inlet orifice to the outlet orifice thereof. The nozzle further includes a venting device connected to the nozzle body and defining a vent discharge opening for venting a second fluid from the receiving vessel into the container through the vent discharge opening such that the second fluid is vented through the vent discharge opening of the venting device without traversing the first fluid in the container substantially during an entire time for a dispensing of the first fluid from the container into the receiving vessel.

Abstract: An air entrainment spa nozzle having a jet of water which passes over an air entrainment port with the air entrainment port having a downstream structure which enhances the air entrainment. In one embodiment, the air enhancement structure is a ramp which extends in a downstream direction from the air entrainment port. In another embodiment, the air entrainment port projects or protrudes into the jet of water by a predetermined amount.

Abstract: An apparatus for dispensing a fluid includes a nozzle defining an orifice in a front face of the nozzle. The material is discharged through the orifice. The nozzle includes a flow divider cooperating to separate a supply of the material into two streams. The flow divider includes two surfaces which intersect not further forward in the nozzle than the front face.

Abstract: The self-contained miniature laminar ornamental fountain shown in FIG. 1 comprises an enclosure and water reservoir, 5, a pump, 1 a flow control means, 3, pipe or tubing means 2 to conduct water from the pump, 1, to a laminar nozzle, 4. Water in the reservoir, 5, enters the pump, 1, where it is pressurized, thence through the adjustable valve or flow control means, 3 through the tubing, 2 to the laminar nozzle, 4. The laminar stream, 6, emanating from the laminar nozzle, 4, forms a graceful arch and then falls back into the reservoir, 5, to repeat the cycle. In another embodiment of the invention the fountain includes one or more additional laminar or non-laminar nozzles. In another embodiment the fountain above in which the laminar nozzle(s) contain internal lighting means for producing lighted laminar streams. In another embodiment in the fountain, the laminar stream(s) are interrupted to form jets of water which appear to leap from place to place.

Abstract: The main use of the laminar device is for fountain displays. When water flows though the surge suppressor assembly and laminar assembly, this device remove all the turbulent in fluid flow, and display an extreme laminar stream of water.

Abstract: The present invention relates to an improved structure of a squared multiple-section nozzle with rounded edges for spreading of water flow, especially one improving squared nozzles used in dyeing machines. The invention mainly adjusts size of opening between diameter of fabric passage and spraying hole of square nozzle. The diameter of fabric passage is squared with rounded edges and the spraying hole is used for spreading of water flow. Hence, the present invention is very convenient as fabrics of different thickness can be used without changing nozzles and thus preventing creases.

Abstract: A water spout is capable of providing laminar flowing fluid from a wall-mounted or faucet fixture body. The fixture body defines a cavity and a port for connection of a plumbing supply line. A cartridge assembly is disposed in the body cavity. The cartridge has a housing with an inlet opening and an outlet opening in fluid communication with the port. The cartridge housing contains a plurality of elements between the inlet and outlet openings for smoothing the flow of fluid passing through the cartridge assembly. A nozzle, positioned adjacent the outlet opening of the cartridge, has a sharp-edged orifice through which fluid leaving the fixture can be projected in a single laminar stream. The nozzle can be removed from the fixture body after the fixture body has been mounted for use such that all of the flow smoothing elements can be removed at once by removing the cartridge assembly from the cavity.

Abstract: The present invention is directed to a device for releasing a fluid. The device includes a housing having an interior region, a fluid contained within the interior region, and the ability to controllably release the fluid from the housing.

Abstract: In FIG. 1, turbulent water or other fluid enters the nozzle body, 2, at inlet port, 1, and encounters the convex surface of a porous filter which has been formed into the shape of a hollow hemisphere, 3, at the center of which is the exit orifice. As the fluid flows through the hollow hemispherical diffuser it has its Reynold's Number significantly reduced. The energy of any gross turbulences on the convex side of the diffuser tends to be converted to a very great number of micro-turbulences which tend to be self canceling. Since the diffuser, 3, also shown in FIG. 3, is shaped as a hollow hemisphere centered upon the exit orifice, 4, then all water flowing from the diffuser to the exit orifice has substantially the same distance to travel from all directions. With this low-turbulence fluid all having substantially the same straight-line distance to travel to the exit orifice, 4, there tends to be little new turbulence introduced and the fluid, 5, exiting the orifice, 4, tends to be highly laminar.

Abstract: A molded fluid device having a power nozzle with a width W and a coupling passage coupling a source of fluid to the power nozzle. The coupling passage is formed on one chip or insert surface and has a planar enlargement and a plurality of posts spaced across the enlargement, the spacing S between each post being less than the width of the power nozzle with the sum of spacing S being greater than the width W. A liquid spray nozzle is formed on an opposing chip surface and connected to the coupling passage downstream of the posts.

Abstract: The present invention provides a new waterfall apparatus water reservoirs such as pools, spa's and the like. It comprises a manifold having a water inlet connected to the a water supply, preferably the water supply from the reservoir's plumbing. The manifold has internal baffles to remove turbulence from the water, which is then directed to a spillway water outlet. The spillway has a through slot that allows water to flow out from the manifold. It also has a removable outlet cap which forms the water into a particular waterfall shape. Another embodiment of the invention for spas, has a tubular body and a outlet that is in the form of a longitudinal slot in the body. The outlet cap is then mounted in the slot. In both embodiments the outlet cap can be easily removed to clean the apparatus if debris becomes lodged within it. It can also be removed if the spillway becomes damaged or it the pool/spa owner would like to change the type of waterfall produced by the apparatus.

Abstract: A microdispensing ophthalmic pump is provided for repeatedly delivering doses as small as 5 microliters within an angular operating range. The pump basically comprises a reservoir, a dispensing cap, an actuator and a pump body with a pump mechanism disposed therein. The pump mechanism is regulated by a limited-travel inlet check valve and a biased-closed outlet check valve. A failsafe mechanism is formed between the actuator and dispensing cap to prevent operation of the pump outside the operating range.