Abstract: An automatic flow restrictor for a sprinkler head. The flow restrictor includes a first disk and a second disk. The first disk and the second disk move relative to each other so as to take a first orientation where water being pumped through a main line tubing member is free to pass through the flow restrictor and exit out the sprinkler head with little resistance to flow, and a second orientation where water is restricted from passing therethrough. The first disk includes a top surface and a bottom surface. The first disk further includes a plurality of apertures extending directly between the top surface and the bottom surface. The second disk includes a top surface and a bottom surface. The first disk further includes a plurality of apertures extending directly between the top surface and the bottom surface, wherein a fan blade is aligned with each of the plurality of apertures.

Abstract: The present disclosure relates to a nozzle device for discharging a fire extinguishing medium into a cargo hold of an aircraft. In order to achieve a reduced weight of a nozzle device while at the same time providing fire protection properties that satisfy the approval requirements, a nozzle device for discharging a fire extinguishing medium into a cargo hold of an aircraft is proposed, which is characterized in that the nozzle device is made of aluminum and/or an aluminum alloy and/or a CFRP material and the nozzle device has a layer of an intumescent material at least on a side facing the cargo hold in the installed state.

Abstract: A nozzle through which a liquid coolant is discharged is provided with an outer tube, a projecting member and an inner tube disposed inside the outer tube, and an elastic body disposed between the inner tube and a discharge port of the outer tube. If foreign matter accumulates on a nozzle opening of the inner tube, the elastic body is compressed by the inner tube under the pressure of the coolant, so that the inner tube moves toward the discharge port. Consequently, the projecting member penetrates the nozzle opening, thereby automatically removing the foreign matter accumulated on the nozzle opening.

Abstract: A nozzle assembly includes a base fixed to a spray pipe containing an internal brush system, a cap that can engage to the base in only one orientation by a multiple lug and receptacle combination, including at least a first lug and a second lug and a first receptacle and a second receptacle, and a nozzle disc able to be held compressively between the base and the cap with a bore extending through the spray pipe, the base and the cap. The nozzle disc includes a nipple extending into the spray pipe when the nozzle assembly is assembled, in which the multiple lug and receptacle combination has at least two circumferentially spaced male lugs or female lugs for engaging complementary receptors, so that the cap is manually able to be engaged to the base by applying axial compression to the cap and twisting the cap relative to the base until the first lug and second lug are locked in engagement in the corresponding first receptacle and second receptacle in the one orientation.

Abstract: A paint delivery and application apparatus, wherein the apparatus includes a source of paint, a paint applicator, a supply line interconnecting the source of paint and the applicator and at least one pig in the supply line, wherein the paint pushes the pig from adjacent the source of paint to the paint applicator and a source of purging solvent delivering a small volume of purging solvent to the supply line when the pig is adjacent the source of paint adjacent to and upstream of the pig acting as a lubricant, reducing chattering and skipping of the pig and extending the life of the pig. Where the apparatus includes two pigs, purging solvent is delivered between the pigs adjacent the applicator, the pigs are delivered to adjacent the source of paint and a small volume of solvent is then delivered from between the pigs upstream of the pigs.

Abstract: A fluid flow control device, particularly useful for drip-irrigation emitters, for controlling the discharge of a fluid (water) from a discharge port in a fluid conduit (drip irrigation pipe) includes: a housing attachable to the fluid conduit and constructed to define a fluid chamber having an inlet opening communicating with the interior of the fluid conduit, and an outlet opening communicating with the discharge port of the fluid conduit; and a flow control member freely movable within the fluid chamber and having a surface contacting an inner surface of the housing to control the flow of fluid from said fluid chamber out of the fluid conduit via said outlet opening in the housing. One of the contacting surfaces of the flow control member or housing is formed with a protruding pattern such that the two contacting surfaces define small passageways for the flow of fluid from the fluid chamber out of the fluid conduit via the outlet opening.

Abstract: A mixed stream nozzle which can prevent accumulation and solidifying of oxides on an inner wall of a raw-water-air mixed stream nozzle of a water treatment apparatus with a simple device is provided. In a mixed stream nozzle having, at one end thereof, a water supply tube connecting portion (2), an air inlet (3) formed on the downstream side of the water supply tube connecting portion, and a mixed stream outlet (4) provided at the other end of the mixed stream nozzle from which mixed stream of water and air is jetted out, nozzle inner wall cleaning means is provided which is made of a twisted-ring chain (11) which is fixed to an inner wall of the nozzle on the downstream side of the air inlet (3) and extends to the vicinity of the mixed stream outlet (4) for colliding with the mixed stream and moving continuously in the nozzle in a manner to swivel by force received from the mixed stream and thereby contacting the inner wall of the nozzle.

Abstract: An apparatus for spraying a liquid, such as a cleaning liquid or a lubricating liquid, onto a wire or onto a felt in a plant for paper production. The apparatus has pipeline for supplying the liquid and spray nozzles for ejecting the liquid. A shaft with a cleaning device for the spray nozzles or for the inner wall of the pipeline is disposed within the pipeline. The shaft includes a cylindrical sleeve which has a slotted guide and a thread and is arranged in a housing which adjoins the pipeline, the thread interacting with a control spindle and, furthermore, a bolt or the like being provided which can be adjusted transversely with respect to the housing and projects into the slotted guide in a first position, as a result of which, during a rotation of the control spindle, the shaft is displaced in the longitudinal direction of the pipeline.

Abstract: A shower header type spraying device having an elongated spray header with a plurality of laterally-spaced nozzles and an elongated cleaning brush assembly supported in said spray header for cleaning inlet apertures of said spray nozzles. The cleaning brush assembly includes an axially extending rod and a plurality of brush elements each mounted on the rod by means of a self-aligning member that has an arcuate shape corresponding to the outer circumference of the rod for orienting a row of brush bristles of the brush element in predetermined relation to the elongated axis of the rod. The illustrated brush rod assembly includes a plurality of brush rod segments each having a self-aligning coupling at an axial end thereof such that joining of adjacent rod segments automatically orients the brush elements in predetermined angular offset relation to each other.

Abstract: A shower head includes a case having a chamber with an opening, and a cover is slidably engaged with the opening and has multiple holes. The cover has an inner space defined therein, and a brush unit is rotatably located in the inner space and the chamber. The brush unit includes multiple blades, and each blade has brushes connected thereto. The brush unit rotates by the water flow so as to brush the inner surface of the chamber.

Abstract: A paint delivery and application apparatus, wherein the apparatus includes a source of paint, a paint applicator, a supply line interconnecting the source of paint and the applicator and at least one pig in the supply line, wherein the paint pushes the pig from adjacent the source of paint to the paint applicator and a source of purging solvent delivering a small volume of purging solvent to the supply line when the pig is adjacent the source of paint adjacent to and upstream of the pig acting as a lubricant, reducing chattering and skipping of the pig and extending the life of the pig. Where the apparatus includes two pigs, purging solvent is delivered between the pigs adjacent the applicator, the pigs are delivered to adjacent the source of paint and a small volume of solvent is then delivered from between the pigs upstream of the pigs.

Abstract: A fuel injection valve has a first groove cut in a peripheral surface of a needle valve and second grooves cut in a seat surface of a nozzle tip. The first groove is provided so that the needle valve is rotated by flow of the fuel in the first groove caused by a reciprocating motion of the needle valve, and upper and lower ends of the first groove are opened to the outside so that the fuel can be introduced into the groove. The second grooves are twisted or tilted in the same direction as the rotating direction of the needle valve and are cut along the circumferential direction of the nozzle tip. The second grooves have an edge part for scraping off solid matters into the second grooves in cooperation with the tip seat surface of the needle valve by the rotation of the needle valve.

Abstract: A shower header type spray device is provided. The spray device includes an elongated spray header having a plurality of laterally spaced liquid spray nozzles each of which is mounted in a corresponding pocket in the spray header. An elongated cleaning brush assembly includes a rotatable brush housed in the spray header for cleaning inlet apertures of the spray nozzles. At least one spray nozzle has a dome portion with a discharge orifice and a substantially flat mounting flange portion extending around the periphery of the dome portion. The mounting flange portion of the at least one spray nozzle has a notch adapted to receive a removal tool for enabling prying and dislodgment of the at least one spray nozzle from its respective pocket in the spray header.

Abstract: A shower header type spraying device having an elongated spray header with a plurality of laterally-spaced nozzles and an elongated cleaning brush assembly supported in said spray header for cleaning inlet apertures of said spray nozzles. The cleaning brush assembly includes an axially extending rod and a plurality of brush elements each mounted on the rod by means of a self-aligning member that has an arcuate shape corresponding to the outer circumference of the rod for orienting a row of brush bristles of the brush element in predetermined relation to the elongated axis of the rod. The illustrated brush rod assembly includes a plurality of brush rod segments each having a self-aligning coupling at an axial end thereof such that joining of adjacent rod segments automatically orients the brush elements in predetermined angular offset relation to each other.

Abstract: A nozzle arrangement which is suitable for use in the generation of a spray or aerosol and which is adapted for connection to a fluid supply, the nozzle arrangement including a fluid inlet through which fluid enters the arrangement from the fluid supply and fluid outlet through which the fluid is ejected from the nozzle arrangement, fluid inlet and fluid outlet being connected to a fluid flow passage through which, in use, fluid flows from the inlet to the outlet, wherein the nozzle arrangement includes control means provided in the passage which, in use, acts to modify the flow characteristics of the fluid in the fluid flow passage to effectively control fluid droplet size produced in the spray or aerosol by the nozzle arrangement.

Abstract: A nozzle for a liquid dispenser that incorporates a cleaning probe capable of removing foreign debris from a nozzle discharge passageway. The cleaning probe is moveable between a retracted position that permits fluid flow to a discharge orifice terminating the discharge passageway and an extended position in which the cleaning probe extends into the discharge passageway. As the cleaning fixture advances from the retracted position to the extended position, foreign debris present in the discharge passageway is displaced and ejected out of the discharge orifice.

Abstract: A fluid spray apparatus includes a pump providing fluid at an elevated pressure and a delivery system coupled to the pump to spray the fluid in a predetermined configuration. The delivery system includes a flexible hose and a nozzle receiver adapted to receive one of a plurality of nozzles each having an associated spray pattern. A nozzle retainer coupled to the delivery system is adapted to releasably retain the nozzles in proximity to the distal end of the delivery system. An associated method includes the step of retaining the nozzles when not in use in an ordered pattern relative to the retainer and in proximity to the distal end of the delivery system. A nozzle cleaner having a configuration similar to that of the nozzles includes a pin and a guard pivotally mounted to cover the pin.

Abstract: The paint-spraying apparatus exhibits a supply line 7 for coating material, extending from the color changer to the atomizer. Cut-off valves 26, 27 installed in the supply line delimit an insulating section 25 of said supply line, which insulating section is associated with means 28 to 32 for emptying and flushing said insulating section 25. A voltage divider 16 is connected in parallel to said insulating section 25. When colors are changed, the residual coating material present in said voltage divider 16 can be moved into the empty insulating section 25, after which it is forced by means of slugs back through the entire supply line 7 to the color changer 1, and is thus reclaimed.

Abstract: An air brush apparatus that is made up of a head assembly, a shell assembly, an air valve assembly for controlling the compressed air which is fed into the apparatus, a handle assembly, a lever assembly, and a paint regulating needle, with a distal end and a proximal end, being movably inserted into the handle assembly and through the air valve assembly and into the head assembly. The paint regulating needle can be cleaned by simply twisting the handle assembly. The apparatus also is designed with a more comfortable and ergonomic lever handle assembly.

Abstract: A fuel injector for fuel injection systems of internal combustion engines has an actuator and a valve needle actuatable by the actuator, which valve needle is in turn coupled to, and actuates, a valve closing body. The valve closing body and a valve seat surface of a valve seat body form a sealing seat. At least one injection opening is formed in the valve seat body, and an elastic vibration element penetrates the injection opening. The elastic vibration element is attached on the inlet side of the injection opening and leaves a portion of cross-section of the injection opening free.

Abstract: By means of a fluid material discharge device of simple construction, a technique for fluid material discharge is provided which has few or no inadequate discharge, high productivity, and which enables easy modification and adjustment of the amount of fluid material discharge. The fluid material discharge device comprises a nozzle for discharge of fluid material and a filament-shape member inserted into the nozzle for use. The filament-shape member has a tip portion AA, which is exposed outside of the nozzle when no pressure is exerted on the tip of the filament-shape member, a portion BB which can be inserted into the nozzle, and a portion CC, on the side of the filament-shape member opposite the tip portion AA, and being bent from the portion BB. The spring structure of the filament-shape member is utilized to discharge fluid material.

Abstract: A method and apparatus for cleaning the interior of capillary tubes used to dispense 1 to 100 micron diameter liquid droplets by a piezoelectric transducer surrounding each capillary tube. Magnetic particles are aspirated into the capillary tubes and moved by an exterior magnet to cause deposits on the interior walls to be dislodged and subsequently discharged from the capillary tube. In a preferred embodiment, the magnetic particles are coated with a material capable of binding such deposits, e.g., DNA, RNA, and the like.

Abstract: A fuel injector for fuel injection systems of internal combustion engines has an actuator and a valve needle actuatable by the actuator, which valve needle is in turn coupled to, and actuates, a valve closing body. The valve closing body and a valve seat surface of a valve seat body form a sealing seat. At least one injection opening is formed in the valve seat body, and an elastic vibration element penetrates the injection opening. The elastic vibration element is attached on the inlet side of the injection opening and leaves a portion of cross-section of the injection opening free.

Abstract: A snow making machine has at least one flexible hose assembly, with an inner hose connected to a water supply and an outer jacket to receive coolant from a chiller. Ice/snow formed in the inner hose is dislodged by inflating squasher hoses in the outer jacket, and pressurised air fed via a line can assist transport of the dry snow crystals to the end of the hose assembly.

Abstract: A reversible spray nozzle for use in a fluid dispersing system which consists of a nozzle portion defining a cylindrical channel therewithin, the nozzle portion having opposing ends, the opposing ends threaded for communicating with the fluid dispersing system, the cylindrical channel extending the length of the nozzle portion, the cylindrical channel for receiving a cylindrical flow tube; and the flow tube defining a delivery channel, the delivery channel extending the length of the flow tube, the delivery channel for providing a flow path for a fluid. The spray nozzle can be configured such that the flow tube is slideably disposed within the nozzle portion, and where the length of the flow tube is less than half of the length of the cylindrical channel of the nozzle portion.

Abstract: A lacquering line and a method of lacquering industrially manufactured products in standard and/or special colours, having one or more guide devices (1) for the industrially manufactured products, having one or more lacquering cabins and having spraying elements (2) disposed along the guide devices (1) inside the lacquering cabins, wherein at least one lacquering cabin comprises one or more lacquering units, having one or more exchangeable small containers (6, 6a), in which the lacquer quantity required for lacquering a predetermined number of individual products is packed ready to apply, as well as having a rinsing device (9), wherein the small containers (6, 6a) and the rinsing device (9) are connectable in each case by a lacquer conveying device (7) and one or more stub lines (8) directly or via a colour changer (11) to the spraying elements.

Abstract: In a method of cleaning a paint application system when switching between two different types or colors of paint, at least a predominant portion of the first paint (35) remaining in a paint line (3) is caused to flow back into its paint supply container (5). Then the entire paint line is flushed out using a flushing medium, before supplying the second paint through the paint line. In this manner, the paint remaining in the painting system at the end of a painting cycle is not wasted, but rather is saved to later be reused. A paint application apparatus includes a paint supply switching device (4), at least two paint supply containers (5 to 8), a paint spray nozzle (2), and a paint line (3) connecting the color switching device (4) to the spray nozzle (2). Two receiver stations (28) and (31) are interposed in the paint line (3), and a shuttle element in the form of a pipe cleaner swab (29) is arranged in the paint line (3) so as to be able to shuttle back and forth between the two receiver stations.

Abstract: A manifolded multiple wand spray apparatus with internal cleaning brushes and a flush valve that is activated when the rods carrying the cleaning brushes are rotated is disclosed. Valves that redirect the flow of water away from the manifold for a brief period during which spray orifice cleaning can be accomplished and an air intake valve that will admit air into the manifold to speed the flushing and create a negative pressure in the spray wands so as to draw obstructing materials into the spray wand during flushing is also disclosed.

Abstract: A rotating spray nozzle for use in cleaning containers having a spray head on a shaft, an element for passing liquid both to the exterior of the spray head to cause rotation thereof and for the delivery of liquid in annular streams, liquid passing to the spray head through the shaft and having an hydraulic bearing therefor, the liquid after passing from the spray head occupying which would be a void as far as washing is concerned. The spray head is also moveable axially relative to the shaft, a spring holding the spray head away from the bottom of the shaft when there is no pressure passing therethrough, the pressure of the liquid moving the spray head to the bottom of the shaft, the arrangement providing a manner whereby foreign material can be removed from between the spray head and the shaft as, by reducing the pressure, the space between these can be increased, thus permitting ready flushing of the foreign material.

Abstract: A decontamination valve for a jet pipe in a paper or board machine, including a disc valve having a closed position and an open position. The disc valve is in the closed position when the jet pipe is in operation and is in the open position when the jet pipe is being cleaned in order to remove cleaning/washing water used in the cleaning process. The disc valve is arranged to close in the same direction in which pressure effective in the jet pipe attempts to shift the valve.

Abstract: The actuating device (1) is adapted to be incorporated into a dispenser provided with a valve (41) having a tubular end (43) which must be pressed in order to discharge the product. The device (1) includes a poppet valve (10), the movement of which is substantially transverse to the axis of the end (43). Action by the user on the push-button results, on the one hand, in opening of the poppet valve (10) and, on the other hand, in pressure being exerted on the tubular end (43) by the use of a film hinge (39). The vertical movement of the push-button is converted into a horizontal movement of the popper valve by means of an orthogonal joint. The product to be dispensed still pass into a chamber rendered airtight by the poppet valve (10) and a flexible collar (13), so that the product, especially a self-foaming product, remains hermetically sealed in the chamber during periods of non-use.

Abstract: A foam dispensing system and apparatus for mixing a plurality of foam components into an expanded foam and dispensing the mixed foam components, the apparatus having a body portion and a cartridge assembly mounted on said body portion. The cartridge assembly includes a mix chamber having a longitudinal bore and an aftermix chamber in communication with the mix chamber. The apparatus further includes inlets and passageways for supplying the plurality of foam components to the longitudinal bore of the mix chamber and a slidable valve rod for controlling the flow of the plurality of foam components into the mix chamber. A pressurized gas is injected into the aftermix chamber to aid in the mixing of the plurality of foam components and to provide an improved spray pattern of foam.

Abstract: A foam dispensing system and apparatus for mixing a plurality of foam components into an expanded foam and dispensing the mixed foam components, the apparatus having a body portion and a cartridge assembly mounted on said body portion. The cartridge assembly includes a mix chamber having a longitudinal bore and an aftermix chamber in communication with the mix chamber. The apparatus further includes inlets and passageway for supplying the plurality of foam components to the longitudinal bore of the mix chamber and a slidable valve rod for controlling the flow of the plurality of foam components into the mix chamber. A pressurized gas is injected into the aftermix chamber to aid in the mixing of the plurality of foam components and to provide an improved spray pattern of foam.

Abstract: A composite valving rod is provided for use in a foam dispensing apparatus having a low friction plastic sleeve portion that is retained by a steel tip which both maintains the physical dimensions of the plastic sleeve and serves as a scraper when drawn through the bore of the foam dispensing cartridge. The cartridge is all metal.

Abstract: A composite valving rod is provided for use in a foam dispensing apparatus having a low friction material sleeve portion that is retained by scraping surfaces on opposing ends which both maintain the physical dimensions of the plastic sleeve and serve as scraper when drawn through the bore of the foam dispensing cartridge. The cartridge is non-resilient and has at least one elongated groove therein to receive the scraped residual foam.

Abstract: A device for preparing a chemically reacting mixture and for ejecting the mixture into a mold, the mixture comprising at least two components, in particular a mixture of isocyanate and a polyol that reacts completely to form polyurethane, the device having a mixing head with an outwardly opening bore, and a reciprocable ram coupled to the head. The ram has an ejector rod axially movable in the bore for therewith defining a mixing chamber and for ejecting the mixture from the chamber. The head has inlet passages for inletting the components into the chamber for preparing the mixture. The mixture head has another bore extending perpendicular to the bore in which the rod slides, and a ceramic body is located in the other bore for stripping off a film of the mixture from the rod during its axial return movement.

Abstract: A sprinkler includes a pop-up stem that defines a passage extending to a downwardly facing opening that is circumscribed by a generally planar surface and covered by a valve element dimensioned and arranged in confronting relationship with the planar surface to at least partially block the opening. The valve element is mounted on the stem to enable movement in a plane generally parallel to the planar surface in order to vary an amount by which the valve element blocks the opening, and rotation of a shaft causes valve element movement to restrict the flow of liquid through the opening a selected amount. A resiliently deformable valve element may be loosely mounted to provide clearance sufficient to enable movement of particulate material from between the valve element and the planar surface while enabling the liquid to urge the valve element toward the planar surface.

Abstract: Screen cleaning showers for a sludge dewatering rotary screen thickener are kept open and effective by periodically rotating a steel wire brush positioned coaxially within the cleaning shower manifold. Shower nozzles are set into the manifold to assure full mechanical wiping of a nozzle interior surface by the axially rotating brush bristles. Brush rotation is motor driven. An automatic controller periodically and simultaneously rotates the nozzle cleaning brush and opens a normally closed solenoid valve in the shower manifold drain line.

Abstract: The beer tap is made with stainless steel lines having constant cross-section and smooth bends and which are embedded in plastic. In an open position, the discharge line communicates with the feed line via two plates. In the closed position, the discharge line is rotated into communication with a cleaning line in the tap body.

Abstract: A device for preparation of a chemically reacting mixture, and for ejecting the mixture into a mold includes a pair of slides having transverse through openings capable of being mismatched upon relative reciprocation, oscillation and/or vibration of the slides for dynamically setting the mixing pressure.

Abstract: A water sprinkler comprises a housing formed with an inlet bore connectable to a source of pressurized water; a tubular connector having one and received within the inlet bore, and its opposite end connectable to the source of pressurized water; and a strainer element supported within the inlet bore by the tubular connector when the latter is received within the inlet bore. The strainer element is formed with a plurality of open notches along its outer edge defining a plurality of passageways of small cross-sectional area blocking the flow of solid particles to the sprinkler, which passageways may be immediately and thoroughly rinsed of the solid particles by merely removing the tubular connector and its strainer element from the inlet bore while the tubular connector is connected to the source of pressurized water.

Abstract: A self-cleaning variable width annular slip atomizer is provided. The atomizer has a tubular body, a valve stem coaxially located in the tubular body and valve member that forms an annular slit type nozzle of a variable width with the tubular body. The valve member is continuously rotatable during operation for cleaning the slit nozzle. The valve stem may have a central opening therethrough for introducing gaseous matter into materials atomized.

Abstract: A fuel injection nozzle is proposed with an opening needle opposed against the flow direction and in which a spring loaded abutment body is guided for longitudinal sliding movement, which body with its free end protrudes into a blind pocket reservoir of the nozzle after a successful injection. Before the beginning of the injection this blind pocket reservoir is opened to open injection holes with different injection directions branching off from the blind pocket reservoir. Through a nozzle embodiment of this kind the damaging space in the blind pocket reservoir is substantially avoided and the proportion of the unburned hydrocarbons is substantially reduced.

Abstract: A water nozzle, particularly for dust suppressing for example at cutting rollers, has a housing with a central opening, a guiding sleeve received at least partially in the central opening of the housing and having an inner passage which is stepped in an axial direction, and a piston stepped in the axial direction and displaceable in the passage of the guiding sleeve to a position in which a narrow gap is formed between the piston and the guiding sleeve so as to prevent solid particles entrained in a flow of water from entering the nozzle. The piston is spring biased in a direction opposite to the direction of the flow of water, so that upon termination of the latter the piston dislodges the solid particles accumulated at the nozzle.

Abstract: A multiple chamber drip irrigation hose for distributing irrigation water and the like comprising, in combination, a primary and at least one secondary tube of flexible, water-impermeable material and joined at a common wall. Said common wall has a series of first holes placing the interior of said primary tube in communication with the interior of said secondary tube. Said secondary tube has a series of second holes leading from the interior of said secondary tube to the exterior. A flexible, filamentary line is positioned within said secondary tube and forms a restricted path for water flowing from a first hole to a second hole. Optionally, at least one tertiary tube of flexible, water-impermeable material is joined to said secondary tube at a second common wall, with said second holes through said second common wall. Said tertiary tube has a series of third holes leading from the interior of said tertiary tube to the exterior and a flexible, filamentary line is positioned within said tertiary tube.

Abstract: A multiple chamber drip irrigation hose for distributing irrigation water and the like comprising, in combination, a primary and at least one secondary tube of flexible, water-impermeable material and joined at a common wall. Said common wall has a series of first holes placing the interior of said primary tube in communication with the interior of said secondary tube. Said secondary tube has a series of second holes leading from the interior of said secondary tube to the exterior. A flexible, filamentary line, ridge or groove is positioned within said secondary tube and forms a restricted path for water flowing from a first hole to a second hole. Optionally, at least one tertiary tube of flexible, water-impermeable material is joined to said secondary tube at a second common wall, with said second holes through said second common wall.

Abstract: A gasified liquid fuel burner having a combustion chamber in the form of a cylinder closed at the bottom, a hollow fuel gasifying member of a substantially conical shape located in the combustion chamber for rotation and having an open end formed therein with an obliquely outwardly turned portion, an air blast supply duct inserted in the fuel gasifying member, a fuel supply line for supplying a liquid fuel to the inner surface of the fuel gasifying member, a gas chamber formed in the combustion chamber in a manner to be juxtaposed against the open end of the fuel gasifying member to define a gasified fuel-air mixture ejection opening between the gas chamber and the obliquely outwardly turned portion of the fuel gasifying member, and a cylindrical gasified fuel-air mixing member provided in the gas chamber and spaced apart a small distance from the open end of the fuel gasifying member.

Abstract: An improved drip irrigation emitter for use in drip irrigation systems, the drip irrigation emitter including a hollow body with at least one outlet port and an inlet connector for receiving fluid from main supply lines, a collar with a center bore movably retained within the hollow body, a tapered pin fixedly attached to the emitter and projecting into the collar bore to form an orifice defined as the volume space between the boundary of the bore and the pin periphery for permitting fluid flow between the inlet and outlet ports and a spring assembly for transmitting a continuously variable yieldable force on the collar in a direction to close the orifice.