Abstract: The present invention relates to a coupling assembly for branching a pipe, and more specifically to a coupling assembly for branching a pipe, which can reduce assembly man-hours, has a simplified configuration, thus enabling a reduction in construction costs, and can effectively prevent the leakage of branched fluid even when the diameter of a branch hole formed in an inlet pipe is increased in order to increase a flow rate inside a branch pipe for supplying fluid to a sprinkler.

Abstract: A smelt shattering apparatus includes an inlet orifice, an outlet orifice, and a fluidic pathway between the inlet orifice and the outlet orifice. A convergence divergence zone is located between the inlet orifice and the outlet orifice. In one illustrative construction, a first separable section includes the inlet orifice, and a second separable section includes the outlet orifice and a divergence zone of the convergence divergence zone. In some constructions, there may be a second outlet orifice in fluidic communication with the inlet orifice. To provide uniformity over the multiple shatter jets, the first outlet orifice may have a cross-sectional dimension and the second outlet orifice is located a distance of between about 4 and about 10 times of the cross-sectional dimension from the first outlet orifice.

Abstract: The present invention relates to a coupling assembly for pipe branching and, more specifically, to a coupling assembly for pipe branching, which: can reduce assembly man-hours; has a simplified structure and thus can reduce construction costs; and can effectively prevent leakage of a branch fluid even when the diameter of a branch hole formed through an inflow pipe is increased in order to enable the increase in the internal flow rate of a branch pipe through which a fluid is supplied to a sprinkler.

Abstract: A waste fragmenting toilet apparatus with pressurized water jets is disclosed. The apparatus includes a toilet bowl, a toilet trap, a water supply, and a plurality of oscillating water jet nozzles. The oscillating water jet nozzles are located within line of sight of recurrent waste blockage zones, interior to the toilet trap and/or toilet bowl. When actuated, the oscillating water jet nozzles inject pressurized water into a trap area breaking up waste material as it passes through. The oscillating water jet nozzles may be used to preemptively prevent blockages and to remove existing blockages.

Abstract: The invention relates to a clamp element for a temperature-independent turgor pressure measurement device for measuring the turgor pressure in a plant sample.

Abstract: A mounting system for a spray manifold having a plurality of spray modules arranged in a lateral array with support assemblies between adjacent modules. The mounting arrangement includes one or more mounting assemblies which each have a hub that is securable about one of the manifold support assemblies and a clamp comprising a pair of clamping arms that is securable about the hub by means of an appropriate fastener. The hub and clamping arms define complementary circular surfaces which permit the selected pivotal positioning of the hub and the spray manifold to which it is secured relative to the clamp and a machine mounting structure.

Abstract: A sprinkler tap connects optionally to either a fitting of underground piping or an existing sprinkler head of an automatic sprinkler system and includes a generally T-shaped body having a fluid flow passage extending between an open bottom end and a first output port at a top end. A second output port communicates with the fluid flow passage between the bottom end and the first output port. The first output port is adapted for receiving either a male or female sprinkler head nozzle or, alternatively, a plug. A quick connect fitting on the second output port allows for easy connection and disconnection of a hose. The opposite end of the hose may be attached to a portable sprinkler device, a hand held spray nozzle or other water dispensing device. The quick connect fitting has an internal stop valve that closes when the hose is disconnected from the device, thereby preventing wasteful discharge of water from the second output port.

Abstract: The irrigation matter (1) of the present invention is inserted and welded in the interior of a drip irrigation pipe (2) during production thereof. It has a number of protrusions (8) arranged in a row emerging from a solid flat part/base (6) of the outer convex surface (7) of the emitter (1). The pipe (2) is locally swollen, covers and is welded both on the protrusions (8) and on their base (6), so that a unified welded assembly is formed between protrusions (8) and the pipe. The water outlets (10) are typically and preferably formed between the prismatic protrusions (8) by cutting off the tips of the protrusions (8) during passage of the drip irrigation pipe in a continuously rotating concave fraise (35) located at the end of the production line. Cutting takes place after the pipe has passed through a system of successive pairs of concave and convex rollers which squeeze it, stretch it and make it rigid, maintaining it in a flattened convex and bent form.

Abstract: Embodiments of a fluid flow regulating device and methods of using the same are described. Certain embodiments manages fluid flow between one or more input ports and output ports at least partly in response to fluid pressure changes and/or by a mechanism driven by fluid flow, optionally without using electrical power.

Abstract: A new and improved hybrid hot melt adhesive or other thermoplastic material dispensing system wherein two or more different hot melt adhesive or other thermoplastic material depositions, comprising, for example, two or more different types of patterns, two or more different types of application techniques or processes, or two or more different types of cyclical operations, can effectively be simultaneously achieved at substantially two or more different locations relative to an underlying substrate. The hybrid system comprises a metering station upon which is mounted a metering head comprising a plurality of metering head dispensing modules, and a pair or remote applicator heads comprising a pair of applicator head dispensing modules.

Abstract: A method of determining a pressure parameter of a plant sample (1) comprises the steps of subjecting the plant sample (1) to a clamp pressure (pclamp) created with a clamp device (10), measuring at least one pressure response value (pp) of the plant sample (1), which depends on the clamp pressure (Pclamp)/and determining the pressure parameter on the basis of the at least one pressure response value (pp), wherein the clamp pressure (pclamp) is adjusted, such that the plant sample (1) has a viscoelastic pressure response to the clamp pressure (pclamp). Furthermore, an apparatus (100) for determining a pressure parameter of a plant sample (1) is described.

Abstract: A portable liquid-dispensing station includes a portable stand and a portable tank, each of which is capable of being carried by a single laborer. When assembled, the tank can sit on top of, and be supported by, the stand. A first opening formed at an upper portion of the tank can receive a liquid to be dispensed, and one or more openings formed in a lower portion of the tank allow the liquid in the tank to be dispensed through multiple dispensing valves. The dispensing valves are spaced around the outside of the tank, and operate independently to permit multiple users to draw liquid from the tank at the same time. A misting system can use a battery operated pump to draw liquid from the tank and pump the liquid to misters. A canopy can also be included to shade the tank, and the people using the portable station.

Abstract: A misting system may include at least one prefabricated mist line comprising at least one mist tee having at least one arm extending outwardly from a body, a latitudinal threaded hole defined in the body, and a longitudinal hole extending through the at least one arm and at least into the body and in fluid communication with the latitudinal threaded hole. A method of forming a misting system may include prefabricating at least one mist line by: aligning an end of at least one tube having a hole there through of a first predetermined diameter with at least one arm of at least one misting tee that is of a second predetermined diameter greater than the first predetermined diameter; and press-fitting the at least one arm into the end of the at least one tube, thereby deforming an end portion of the at least one tube.

Abstract: In an endoscope washer disinfector, a bath comprises a mounting plane on which an endoscope with a duct is mounted and a wall member. A connector has two ends consisting of one end located to penetrate through the wall member and to be secured watertightly to the wall member. The one end faces an opening of the duct of the endoscope mounted in the bath. The other end is connected to a fluid source storing fluid for washing and disinfecting the endoscope. A nozzle is movable in the connector along an inner passage thereof and moved toward the one end of the connector to protrude from the one end to realize a watertight and detachable connection with the opening of the duct. The fluid is supplied to the duct when the fluid is supplied from the fluid source.

Abstract: A chemical distribution system affixes flexible tubing (50) along exterior surfaces (52) of a dwelling (12) and along structures (16) external to the dwelling. The tubing is attached to the exterior surfaces with clamps (54) and exposed for maintenance. The clamps are form-fitted to the tubing. Spray nozzles (58) are inserted into the openings in the tubing for dispensing a chemical solution. The openings can be pre-formed or cut into solid tubing at during installation. A connector (42) has one end coupled to a hose for receiving the chemical solution and another end coupled to the tubing. The fixed distribution system provides for precise and even application of the chemical solution with minimal operator intervention.

Abstract: A watering system that has first and second upright supports, a plurality of bendable water conduits and substantially rigid water channels and a first spray head is disclosed. Each of the first and second upright supports have substantially laterally oriented brackets dimensioned to releasably hold objects having a first outer diameter, including the bendable water conduits and substantially rigid water channels. The substantially rigid water channels each have a central body and left and right hose barbs in fluid relationship to one another through the central body. The central body has an aperture dimensioned to receive and mechanically engage the insertion end of the first spray head. The first spray head has a spray jet with a first water flow rate. The system may further include second and third spray heads with second and third water flow rates each different from each other and the first water flow rate.

Abstract: Apparatus for supplying a fluid comprising a pipe having at least one aperture through a wall of the pipe, each of the at least one apertures comprising a first portion in an inner surface of the wall, a second portion in an outer surface of the wall, the first portion intersecting the second portion to form an opening, the first portion having a first cross-sectional area at the inner surface that is greater than a second cross-sectional area of the opening; wherein the first cross-sectional area and the second cross-sectional area have a first ratio within a first predetermined range so as to enable fluid flowing through the pipe at a predetermined flow rate to exert a predetermined pressure to spray fluid from the at least one aperture to atmosphere and also to flush the first portion.

Abstract: An improved method and system is described for applying a leach solution to ore in the process of heap leaching. The Hybrid Irrigation System (HIS) relies on both surface solution delivery techniques as well as sub-surface solution application to improve the solution uniformity and metallurgical performance of a leaching process. The methods and systems allow for controlled application of leach solution with a hydraulic head applied that can be adjusted or varied depending on the conditions of the ore from negative, atmospheric or positive pressure, while distributing leaching solution in a uniform manner independent of surface variability with respect to elevation and infiltration capacity of the ore surface.

Abstract: This disclosure describes a high-pressure gas powered full body self misting device that allows a person to spray a mist onto their whole body at once without using electricity, and without having to hold anything in their hand, such as a can or misting spray wand. This device can be used as a simple, do-it-yourself, misting system for fluids that are commonly applied to or around the body including, but not limited to, tanning solution, skin lotions, and aromatherapy mist.

Abstract: A water evaporation system and method for disposing of excess water left over from oil or gas drilling, fracturing, and production operations and from other wastewater producing operations. The system comprises a pumping system for pumping the wastewater from a pond through a filtration system and then to one or more nozzle arrays attached to cables suspended over the pond.

Abstract: A method and system for a ceiling fan with an integral water mister apparatus, particularly for outdoor use, includes a conventional ceiling fan having a multi-speed motor, forward and reverse directional capabilities and a plurality of rotating blades in a variety of diameter sizes. A series of water dispensing ports are directly above the blades toward the outer perimeter that selectably dispense a fine water mist. The mist is obtained by connecting ?? tubing to an available standard water supply and having said tubing conduct the water through a six by two inch, five micron, polyphosphate filter. The filtered water then travels through the tubing attached to the apparatus to the misting dispensing nozzles. The fine mist will evaporate quickly in hot weather producing a cooling effect without significantly wetting surrounding objects. The air circulation provided by the fan blades enhances the distribution of the mist and the cooling effect.

Abstract: The invention is directed to methods, apparatuses and EPA exempt compositions directed to producing a safe and effective chemical or biological barrier to protect human or animal subjects from insect and other nuisance pests.

Abstract: A watering system that has first and second upright supports, a plurality of bendable water conduits and substantially rigid water channels and a first spray head is disclosed. Each of the first and second upright supports have substantially laterally oriented brackets dimensioned to releasably hold objects having a first outer diameter, including the bendable water conduits and substantially rigid water channels. The substantially rigid water channels each have a central body and left and right hose barbs in fluid relationship to one another through the central body. The central body has an aperture dimensioned to receive and mechanically engage the insertion end of the first spray head. The first spray head has a spray jet with a first water flow rate. The system may further include second and third spray heads with second and third water flow rates each different from each other and the first water flow rate.

Abstract: A portable misting system comprises a plurality of base members which may be coupled to a plurality of vertical support members, which, in turn, may be coupled to a plurality of horizontal frame members. A tubing apparatus including a plurality of mist nozzles runs through the horizontal frame members and at least one vertical support member and one base member. The tubing apparatus may be connected to a water supply and may include a water pump. Water flows through the tubing apparatus of the portable misting system and is dispersed from the mist nozzles to provide cooling benefit to a desired area. Light fixtures may be coupled to the portable misting system. The configuration of the portable misting system may be adjusted as desired to accommodate various spaces in which it may be installed.

Abstract: A multi-stage swing horticultural watering appliance comprises: a base, a water-dispensing basin, a swing device, a spraying cover and a swing outlet pipe. The base is formed in a center thereof with a circular receiving recess for accommodation of the water-dispensing basin, an inlet hole and an outlet connector are arranged at two opposite sides of the receiving recess of the base, a plurality of inlet apertures is formed in an outer periphery of the water-dispensing basin, and in the water-dispensing basin are provided with a water-supplying pipe and a plurality of water-separating boards. In use, water flows through the inlet hole of the base and into the water-dispensing basin via the inlet apertures. When the water-dispensing basin is full of water and the pressure therein reaches to a certain level, the water will flow into the swing outlet pipe via the inlet hole thereof and will be sprayed out via the spraying apertures.

Abstract: A warewash machine includes a housing including an area for receiving wares to be washed and a liquid dispensing arm removably positioned within the housing, the liquid dispensing arm including a nozzle receiving opening. Removably positioned in the nozzle opening is a nozzle that is configured to output liquid in a specific output pattern. The nozzle receiving opening and the nozzle are cooperatively shaped and configured such that when the nozzle is inserted in the nozzle receiving opening the nozzle is automatically positioned such that an orientation of the specific output pattern relative to the area is automatically set to a specific orientation.

Abstract: Mobile towers of an irrigation system have drive wheel assemblies that propel the towers along the ground. At least certain of the wheel assemblies may comprise dual wheels that share a common axis of rotation but are separately driven by their own drive motor. By driving the two separate wheels in unison but with their own individual drive shafts, increased ground-engaging surface area can be obtained without a consequential increase in load for any one motor.

Abstract: A system for retaining and locating a jewel of the type comprising a nozzle for a water cutting system includes a first support structure component having a water discharge passageway extending therethrough and having an exterior locating surface formed at the water receiving end of the water directing passageway. A second support structure component has a water directing passageway formed therein and has a jewel receiving cavity formed therein at the discharge end of the water receiving passageway. The second support structure component further comprises a chamber for receiving and retaining the first support structure component with the locating surface thereof positioned in engagement with the locating surface of the jewel.

Abstract: A portable misting system having a pump that is at least partially submersed in a fluid. The partial submersion of the pump enables the pump to move fluid through a supply hose to a plurality of misting nozzles. In one embodiment, the misting system includes a receptacle configured to receive and store a fluid. The pump is coupled to the receptacle so as to be at least partially submersed in the fluid contained therein. In another embodiment, the misting system includes a receptacle in fluid communication with a pump chamber. The pump is partially disposed within the pump chamber so as to be at least partially submersed in the fluid contained in the pump chamber.

Abstract: An apparatus for dispersing mist in a predetermined area includes means for obtaining water from a water source and means for dispersing the water as mist. A connecting means connects the obtaining means to the dispersing means. Upon the obtaining means obtaining water, water is provided through the connecting means for dispersing by the dispersing means thereby providing a cooling mist therefrom.

Abstract: An eave gutter is provided. A downspout is operatively coupled to the gutter. A plurality of spraying components has fittings and nozzles. The fittings and nozzles are positioned at spaced locations along the gutter. A conduit couples a fluid source and the fittings and nozzles to provided fluid to the gutter. Control components are provided along the conduit to the fittings and nozzles.

Abstract: An apparatus for resurfacing an ice surface includes a dolly including a body, a handle and a plurality of wheels attached thereto. The apparatus includes a device for operably receiving fluid from a reservoir and distributing fluid substantially evenly onto an ice surface. The device includes a valve connecting the reservoir to an elongate pipe that has a plurality of substantially evenly spaced perforations for allowing fluid to pass therethrough. An elongate support member extends along the length of the pipe and is secured thereto. An applicator is preferably connected to the support member for receiving fluid and for assisting to evenly apply fluid onto an ice surface. The opposed end portions of the pipe and support member are movable between up and down positions for adjusting the amount of water dispensed onto an ice surface.

Abstract: A nozzle coupling includes a connector having an attached nozzle and opposing ends. The connector is capable of receiving fluid and conducting it to the nozzle and the nozzle is capable of receiving fluid from the connector and spraying it outwardly therefrom. Facets of the connector extend longitudinally of the connector from one of the opposing ends to the other of the opposing ends, and each of the facets are capable of being borne against a surface to locate the nozzle.

Abstract: A system, apparatus and method for treating water in a landscape pond so as to enhance the water clarity, where the water to be treated is delivered to a treatment pond to reduce the particulate matter and nutrient level of the water. The treatment pond includes a nutrient level reducing vegetation, facultative bacteria, substrate material for the bacteria (usually gravel) and a treatment apparatus. The treatment apparatus includes a generally vertically disposed hollow and cylindrical stack formation which extends between the treatment pond bottom and surface and defines at least one (1) coupling construction. At least one (1) elongated and generally horizontally disposed water disbursing module is positioned on the pond bottom and coupled to the stack formation. The disbursing module includes a flat bottom, an arcuate upper surface having a plurality of exit apertures therein and a pair of end formations, all of which define a passageway.

Abstract: The inventive device for aromatizing a gas medium comprises a chamber provided with a flow booster for mixing the gas medium with aromatic fumes. Said fumes are delivered to the chamber by a dispenser which is embodied in the form of a reservoir containing a liquid aromatic substance. The dispenser is provided with a system of nozzles for supplying the aromatic substances to the mixing chamber. The supply of the substance is carried out by producing pressure pulses inside the chamber. Said pulses occur as a result of a pulse operation of actuating elements which are arranged in the chamber and embodied in the form of thermistors, stricting elements and controlled commutator. Said actuating elements are controlled by a field programmed logic array which is also controlled by a panel or a computer and programmed in relation to a value, duration and repetition rate of voltage pulses coming to actuating elements. The diameters of the nozzles range from 10 to 70 ?m, the distance therebetween being less than 50 ?m.

Abstract: A boat misting system for cooling occupants of a boat or houseboat with a very fine aerosolized water spray is described. The water for the system is taken from the body of water upon which the boat floats so that a virtually limitless amount of misting water is available. The boat misting system is aesthetically pleasing because the plumbing components are concealed below the deck or within the hull of a boat. If desired, extension hoses may be used to equip a boat canopy with a portion of the misting system. The misting spray may be applied continuously or cycled intermittently using a timer.

Abstract: A fluid spray apparatus with a controlled supply of pressurized fluid delivered through a network of tubes to a spray head having a plurality of stop flow valves and nozzles that will automatically shut off the flow of fluid out of the nozzles when the pressure of the fluid drops below a threshold level. The spray head preferably has a central chamber that is open to the stop flow valves and dampens any fluctuations in pressure and volume of fluid from the source of pressurized fluid. The nozzle is preferably mounted to the stop flow valve. The stop flow valve has a biased valve head that engages a seat until the pressure exerted on the valve head by the fluid exceeds a threshold level and the valve opens. One embodiment has a quick connect coupling with a base, seal and collar that will allow spray heads of various numbers of nozzles to be quickly exchanged. Another embodiment is adapted to couple with a conventional paint spray compressor and gun.

Abstract: A sorting machine for diverting an article from an article stream generally includes a manifold, a first valve supported on the manifold and a second valve supported on top of the first valve. The manifold has a first blow-off conduit and a second blow-off conduit formed therein. The first blow-off conduit terminates at a first blow-off port and the second blow-off conduit terminates at a second blow-off port. The first valve is in fluid communication with the first blow-off conduit of the manifold for supplying a burst of fluid out of the manifold through the first blow-off port to divert an article from an article stream intersecting with the first blow-off port. The first valve further has a by-pass duct in fluid communication with the second blow-off conduit of the manifold.

Abstract: New and in-use fire sprinkler systems can be sterilized by employing antimicrobial gases. The gases include steam, oxygen, and chlorine. Water added to the system after sterilization can be sterilized to prevent the reoccurrence of microbiological contamination.

Abstract: An air delivery system, wherein the air delivery system is coupled to a hose delivering water or fire-extinguishing foam, for providing air to emergency workers and disaster victims. The system includes a high-pressure air hose coupled at one end to an air-supply source and adapted to be coupled at a plurality of outlets along the delivery system to bottles capable of containing pressurized air.

Abstract: Vehicle undercarriage cleaners clean the undercarriage of vehicles. Dirt, mud, salt, chemicals, snow and other materials accumulate on the undersides of vehicles. The vehicle undercarriage cleaner removes these materials without requiring the user to manipulated during use by employing a set of interlocking pipes and joints laid out to form a nested rectangle. Water holes piercing the top surface of the pipes result in sprays of water when a hose is connected to the hose attachment mechanism. Addition or removal of pipes and joints allows the dimensions of the vehicle undercarriage cleaner to be adjusted to accommodate any vehicle.

Abstract: The adjustable arc spray nozzle allows adjustment of the spray arc, the radius, and flow of the water spray provided by the nozzle. The nozzle includes a top member, a base member, and a discharge orifice defined therebetween. A rotatable external upper collar controls the radius of the pattern, an internal helix member controls the arc of the spray pattern, and an internal flow adjustment screw and an optional rotatable external lower collar control the flow of the nozzle.

Abstract: A cleaning device for a jet pump nozzle in a nuclear reactor. The cleaning device includes a tubing section having a first end, a second end and a mid-section between the first end and the second end, a pole adapter coupled to the tubing section at the mid-section, and a hydrolaze head assembly coupled to the first end.

Abstract: A new and improved apparatus is disclosed to fertilize water passing through an existing irrigation system. The present invention would comprise at least one feeder, which would comprise an outer housing and an inner feeder tube. The inner feeder tube would be accessible via a top-mounted threaded end cap, with a user removing the top-mounted threaded end cap in order to place fertilizer within the inner feeder tube. The inner feeder tube would have holes throughout its length, and with the outer housing connected up to a closed irrigation water line, the fertilizer would be permitted to mix with the continuous flow of water that would pass through the feeder. Water in the entire irrigation system would be designed to pass through an input PVC line into the feeder, pass around and through the feeder tube (thereby picking up and dissolving fertilizer), and then passing through an output mechanism into the regular irrigation line.

Abstract: A fluid-atomization manifold (50) for use in a misting system (20) configured to distribute a fluid (24) and to render that fluid (24) into a mist (26) is provided. The fluid-atomization manifold (50) has an input connector (54) coupled to a connector (44) of an interface fitting (36) coupled to fluid-distribution tubing (34) of the misting system (20). The fluid-atomization manifold (50) has a plurality of output connectors (56), wherein a connector (48) of each of a plurality of fluid-atomization nozzles (46) of the misting system (20) is configured to mate with the connector (44) of the interface fitting (36) and is coupled to one of the output connectors (56) of the fluid-atomization manifold (50).

Abstract: A flashing article for sealing out and draining away moisture from all types of stucco coated exterior wall surfaces, and for impeding the ingress of termites, rodents, and other animal infestation, having a generally flat sheet of a rigid material having a first section, a second section extending from and angled with respect to the first section, and a third section extending from and angled with respect to the second section, the third section having at least one aperture defined therein, and a hollow tube that passes through the aperture. A perforated conduit for distributing a pesticide or other fluid is carried by the second section and fastened to a conduit connector which extends through an aperture in the third section to provide access for injection of the pesticide.

Abstract: A spray apparatus includes a pump for pressurizing water, a drive unit for driving the pump, a flow regulator for regulating the flow of water pressurized by the pump, and a modular spray assembly. The modular spray assembly includes piping connected to the pump, a plurality of quick coupler units connected to the piping, and water outlets connected to the quick coupler units through which the pressurized water is sprayed, wherein the pressurized sprayed water creates a mist and a wind. The spray apparatus can be assembled in a tent-like structure to provide a rain room, wherein a mist and a wind are generated by the apparatus.

Abstract: A spray shower apparatus reconfigurable and adjustable for watering flowers and other plants planted in beds. The apparatus comprises a kit enabling modular assembly and enclosed within a common enclosure. The principal component of the kit is a rigid liquid conduit having at least one threaded end and a plurality of orifices disposed on the lateral wall of the conduit. The conduit has a plurality of spray nozzles attachable to the orifices of the liquid conduit. Each spray nozzle is adjustable as to direction of spray relative to the liquid conduit. Other components of the kit include a connector for connecting the liquid conduit to an external source of liquid, brackets for securing the liquid conduit to a vertical environmental surface, and an end cap for closing the distal end of the liquid conduit. Preferably, components are provided in quantities enabling a plurality of liquid conduits to be arranged in series.

Abstract: A duct made of flexible material, comprising a plurality of spaced dispensers and regulator valves. Each dispenser is provided with two ports, one for ground dispensing and the other one for over-the-crop dispensing; the ports are controlled by respective differential membrane valves. The ports are supplied by separate system sections, one at low pressure and the other one at high pressure, which comprise respective pipes which are supplied by corresponding motorized pump units at low and high pressure respectively; the pipes are joined in a single duct with side-by-side passages provided with a cross-section shaped substantially like a figure-of-eight.

Abstract: A spray apparatus includes a pump for pressurizing water, a drive unit for driving the pump, a flow regulator for regulating the flow of water pressurized by the pump, and a modular spray assembly. The modular spray assembly includes piping connected to the pump, a plurality of quick coupler units connected to the piping, and water outlets connected to the quick coupler units through which the pressurized water is sprayed, wherein the pressurized sprayed water creates a mist and a wind. The spray apparatus can be assembled in a tent-like structure to provide a rain room, wherein a mist and a wind are generated by the apparatus.