Abstract: An inkjet printhead includes an ink supply channel extending through a substrate; an ink chamber arranged on the substrate, into which chamber ink from the ink supply channel is supplied, the ink chamber defining an ink ejection port on one surface thereof; an internal rim provided within the ink chamber, the rim interposed between the ink supply channel and the ink ejection port; and a thermal bend actuator extending into the chamber from outside the chamber, the thermal bend actuator terminating in the chamber with a paddle. The periphery of the paddle and the internal rim are shaped with complementary edges turned towards the ink ejection port.

Abstract: A device and a method for continuous and adjustable dosage of fluids at low pressure. The invention is self-cleaning and low tech. It consists of a tapering dosage unit in which a filling, which allows fluids to pass in the longitudinal direction of the dosage unit, is inserted. At the outlet end of the dosage unit, a venturi tube is located which clamps the filling and thereby create a nozzle opening that fits the fluids viscosity and the pressure for a given desired dosage. When the dosage unit clogs, a flushing can be obtained by either increasing the pressure of the fluid and thereby forcing a flexible dosage unit to increase the sectional area and allow cleaning or in the same way through a mechanical opening of the dosage unit.

Abstract: A fluid ejection apparatus includes a fluid distribution layer between a fluid manifold and a substrate. The fluid distribution layer includes fluid supply channels and fluid return channels. Each fluid supply channel receives fluid from the fluid supply chamber and circulates a fraction of the received fluid back to the fluid return chamber through a return-side bypass. The substrate include a plurality of flow paths, each flow path includes a nozzle for ejecting fluid droplets. Each flow path receives fluid from a respective fluid supply channel, and channel un-ejected fluid into a respective fluid return channel. Each fluid return channel can collect the un-ejected fluid from one or more flow paths and a supply-side bypass, and return the collected fluid back to the fluid supply 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 cartridge changer (41) is composed of a swing arm (48) with a cartridge gripper (48B) for gripping a paint cartridge (24), and an arcuate moving portion (46) for putting the swing arm (48) in swinging movements in a horizontal plane. The cartridge changer (41) is adapted to pick up a replenished paint cartridge (24) on the mount deck (42) by the cartridge gripper (48B) and transfer the swing arm (48) to a changing position “O” by the arcuate moving portion (46). By the operation, a used paint cartridge (24?) will be replaced by the replenished paint cartridge (24) between the mount deck (42) and a common body (15) which is located in the changing position “O” of the atomizing head changing and washing device (31).

Abstract: Systems and methods for painting, which might be used to paint the soil in a golf hole are provided. A spraying device can comprise a first masking apparatus, a second masking apparatus coupled to the first and a paint dispersing device, between the first and second masking apparatus. The paint may disperse from a single nozzle that can include multiple individual exit points for the spray. In another embodiment, the single nozzle includes an exit point and a flat or curved plate to direct the spray. Alternatively, the paint dispersing apparatus may comprise multiple nozzles. The nozzles may be provided with paint using tubes connecting from a paint source, such as an aerosol paint can, to each nozzle. The first masking apparatus can be a golf cup mask and the second masking apparatus can be a putting green mask.

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: A method and apparatus that may be utilized for chemical vapor deposition and/or hydride vapor phase epitaxial (HVPE) deposition are provided. In one embodiment, the apparatus a processing chamber that includes a showerhead with separate inlets and channels for delivering separate processing gases into a processing volume of the chamber without mixing the gases prior to entering the processing volume. In one embodiment, the showerhead includes one or more cleaning gas conduits configured to deliver a cleaning gas directly into the processing volume of the chamber while by-passing the processing gas channels. In one embodiment, the showerhead includes a plurality of metrology ports configured to deliver a cleaning gas directly into the processing volume of the chamber while by-passing the processing gas channels. As a result, the processing chamber components can be cleaned more efficiently and effectively than by introducing cleaning gas into the chamber only through the processing gas channels.

Abstract: A common body (15) of a coater unit (14) is mounted on a robot device (13). A common body gripper (33) is fixedly mounted on a fixed plate (32) of an atomizing head changing and washing device (31). At the time of replacing a used atomizing head (19?) and a used paint cartridge (24?) by a washed atomizing head (19) and a replenished paint cartridge (24), respectively, the common body (15) is gripped and located in a predetermined position by the common body gripper (33). When the common body (15) is gripped by the common body gripper (33), the robot device (13) is put in a reduced power mode attenuating driving forces to leave said common body (15) in a freely movable state by application of an external force.

Abstract: Herein are disclosed apparatus and methods for impinging fluids, e.g. heated fluids, onto the surface of substrates and then locally removing the impinged fluid. The apparatus may comprise at least first and second fluid delivery outlets that are in diverging relation to each other. The apparatus may comprise at least first and second fluid capture inlets that are locally positioned relative to the first and second fluid delivery outlets, respectively. The apparatus and method may be used e.g. to impinge fluids onto two converging substrates and may be used to heat the surfaces of the substrates so as to facilitate melt-bonding the substrates to each other.

Abstract: An improved irrigation evacuation system and method, to use in conjunction with an existing automatic irrigation system for controlling the sequence and duration of purging water from each irrigation zone. The system comprises an air source of adequate volume and pressure having an air outlet, a purge controller, a plurality of existing solenoid valves having corresponding irrigation zones, the air source being of adequate volume and pressure to evacuate the water from at least one irrigation zone, the air outlet being in fluid communication with the existing solenoid valves, the purge controller being in signal communication with the existing solenoid valves whereby upon purge initiation, the purge controller opens one existing solenoid valve thereby putting the corresponding irrigation zone in flow communication with the air source until purged, the purge controller then closing the solenoid valve, sequencing to the next solenoid valve, and repeating until all irrigation zones are purged.

Abstract: The piston dispenser for the measured supplying of material to the atomizer of a painting robot is arranged in the hand joint of the robot. Various feasible embodiments of the dispensing cylinder of this piston dispenser are described.

Abstract: The side seal assembly consists of three main components: a hardened and precision ground side seal 12, a spring 14 and a housing 16 in which the side seal 12 and spring 14 are assembled. The side seal contains two tabs 22 that fit through a slot feature 24 in the housing. The tabs 22 on the side seal 12 slide through the housing slot 24 into a relief area 26 that allows the side seal 12 to turn 90 degrees and fall into a shallow pocket 28 that keeps the side seal 12 retained.

Abstract: Provided is an apparatus for supplying chemical liquid. The apparatus includes: a plurality of nozzles, each of which can be moved forward or backward and supplies chemical liquid; a nozzle cover which accommodates the nozzles therein and has an open end to allow each of the nozzles to move into or out of the nozzle cover; and a nozzle driver which moves each of the nozzles forward or backward.

Abstract: An apparatus and method for creating a realistic granite or other pattern on a substrate, such as a sink, bath, or piece of furniture. The apparatus and method may use gelcoat to create a regular or irregular pattern. The apparatus may use pressurized air or gear pumps to pump paint from tanks to a spraying device.

Abstract: Embodiments of the invention provide a spray head including a housing having a facetted front face with a plurality of intersecting surfaces. The spray head can include a nozzle in each one of the plurality of intersecting surfaces. The nozzle can be positioned within a first recess of the housing so that an outer end of the nozzle does not extend past an outer surface of the housing. The nozzle can generate and dispense a fog-like mist. The spray head can include a cover that substantially prevents an orifice of the nozzle from becoming blocked with debris. The cover can be installed within a second recess of the nozzle so that the cover is substantially flush with the outer surface of the housing.

Abstract: An injection head for the combustion chamber of a rock propulsion unit has a base area with a plurality of injection elements distributed on it. Propellant constituents can be injected from each outlet of the injection elements into the combustion chamber, generating hot gases by a mixing and combustion of the propellant constituents in the combustion chamber, which hot gas can be accelerated to a high velocity for generating thrust. The base area of the injection head had a contoured shape which prevents or reduces the formation of zones of a reduced pressure, particularly between directly adjacent outlets.

Abstract: Overspray eradicator. A portable spray and overspray capture system including a portable vacuum filtration and spray gun air power supply unit including an air pressurization system, a vacuum creation system, a high efficiency particulate air filter, and an organic vapor filter, the portable vacuum filtration and spray gun air power supply unit in pressurized air communication with, and vacuum communication with, a visibility sparing spray shroud, the shroud including a spray gun or a spray gun fitting, a vacuum fitting and a plurality of extensions each with an aperture allowing fluid communication between the interior of the shroud and the exterior of the shroud the shroud having internal fluid passages to allow fluid communication between each of the extensions and the vacuum fitting.

Abstract: A handheld device and method for clearing obstructions from spray nozzles includes a housing, a gas valve system contained within the housing, and a nozzle body attachment structure. A trigger associated with the gas valve system is operable to release a blast of compressed gas through the attachment structure. A spray nozzle placed in contact with the attachment structure receives a blast of compressed gas to clear obstructions. The attachment structure interfaces with both the normal discharge side and the normal inlet side of the spray nozzle to allow compressed gas to be blown through the spray nozzle in both directions. A backup tool is provided to engage a backside of the spray nozzle to prevent a spray tip within the spray nozzle from blowing backwards out of the spray nozzle. A backup tool cover has a slender projection for removing screen filters associated with the spray nozzle.

Abstract: A fuel injection valve includes a valve body having a valve seat, a nozzle plate arranged on an injection side of the valve body, a valve plug for intermitting fuel injection through the nozzle hole, and a sleeve. The nozzle plate has a nozzle hole through which fuel is injected from the injection side of the valve body. The sleeve makes contact with an end surface of the nozzle plate on an opposite side of the valve body with respect to the nozzle plate to partially cover the nozzle plate. Fuel is injected to an outside of the sleeve through the nozzle hole of the nozzle plate and an opening of the sleeve. The end surface of the nozzle plate makes contact with the sleeve in a contact portion. The contact portion has at least one groove that extends from the opening outwardly with respect to a substantially radial direction of the sleeve.

Abstract: A common body (15) of a coater unit (14) is mounted on a robot device (13). A common body gripper (33) is fixedly mounted on a fixed plate (32) of an atomizing head changing and washing device (31). At the time of replacing a used atomizing head (19?) and a used paint cartridge (24?) by a washed atomizing head (19) and a replenished paint cartridge (24), respectively, the common body (15) is gripped and located in a predetermined position by the common body gripper (33). When the common body (15) is gripped by the common body gripper (33), the robot device (13) is put in a reduced power mode attenuating driving forces to leave said common body (15) in a freely movable state by application of an external force.

Abstract: Intended is to provide a technique for a paint feeding device, which is enabled by an easy device constitution to realize the reduction of the quantity of a rinsing liquid used and to retain an excellent rinsing property. A coater or the paint feeding device is equipped with a paint feeding passage, which has a discharge port at its one end, in which a rinsing liquid feeding device for feeding a rinsing liquid to the inside and an air feeding device for feeding air to the inside are connected to the end portion on the opposite side of the discharge port and in which a plurality of paint feeding devices for feeding the paint to the inside are connected between the discharge port and the opposite side end portion. The rinsing liquid feeding device and the air feeding device are connected to the paint feeding passage through a rinsing liquid feeding passage disposed separately of the paint feeding passage.

Abstract: Various exemplary illustrations of a piston rod seal are disclosed. An exemplary piston rod seal may include a piston rod guide for guiding a piston rod that supports a scraping piston configured to scrape paint residue from an inner wall of a pipeline cylinder. The piston rod may further include a first seal for sealing the piston rod guide relative to the piston rod, and a second seal for sealing the piston rod guide relative to the piston rod, where the second seal is arranged axially offset relative to the first seal.

Abstract: A method for activating the surface of a base material and an apparatus thereof, which is suited to be utilized for pretreatment in electrochemical treatment such as, for example, electroplating or the like, in which the surface of a base material such as metal can be subjected to degreasing treatment and oxide film removing treatment simultaneously, efficiently and rationally, in which productivity can be enhanced and the equipment cost can be reduced, and in which a waste solution can be rationalized so that the solution can be reutilized and the environmental pollution can be prevented. A method for activating the surface of a base material in which the surface of a member to be treated is subjected to degreasing treatment or oxide film removing treatment. Pressurized carbon dioxide is dissolved in a predetermined quantity of water, thereby preparing an oxide film removing solution having a predetermined acidic concentration.

Abstract: A cap is provided for preventing clogging of a spray nozzle on a container. Structurally, the cap includes a hollow, truncated cone-shaped member with first and second ends. At its first end, the cap defines an orifice dimensioned to selectively receive the spray nozzle to create a fluid-tight seal with the container. At its second end, the cap defines a periphery. Further, the cap includes a panel that has a flat surface bounded by a perimeter that is interconnected to the periphery by an intermediate section. As a result, the cone-shaped member, intermediate section and panel form a fluid chamber. Fluid is positioned in the chamber for movement between a first location where the spray nozzle is submerged and a second location where the fluid is held at a distance from the spray nozzle for removal of the cap from the spray nozzle.

Abstract: A method and apparatus to disintegrate a liquid having a tendency to solidify and improving the operational safety of processes involving dispensing or spraying of small liquids amounts. The method of the present invention comprises the prevention of the formation of nozzle built-up of formerly suspended particles or formerly dissolved solute by means of closing the nozzle aperture when the spraying process is stopped using a sealing liquid.

Abstract: The invention relates to a dispenser for delivering portions of liquid to pasty substances, having a storage container and a pumping chamber, the pumping chamber having at least one valve, and having a delivery head which can be displaced relative to the storage container and the displacement of which allows the substance to be delivered, the delivery head further having formed in it a delivery channel with a delivery opening, which delivery opening can be closed by a closure part which is removable, but is held in captive fashion on the delivery head. In order to specify such a dispenser for delivering portions of liquid to pasty substances which is configured in an advantageous manner, in particular, in respect of a closure part, it is proposed that the closure part is a sliding part which also forms a delivery-channel portion and interacts with a fixed closure pin.

Abstract: A suck back valve comprises a suction amount-adjusting mechanism including a screw member which regulates a displacement amount of a second piston integrally displaceable with a second diaphragm in accordance with abutment of a disk-shaped member, a rotary driving section which allows the screw member to move toward or away from the disk-shaped member, and a detecting section which detects a displacement amount of the screw member. Accordingly, it is possible to appropriately adjust the flow rate of the pressure fluid to be sucked under the negative pressure action of the second diaphragm.

Abstract: An inkjet printhead integrated circuit includes a substrate defining an ink supply channel. An ink chamber structure is arranged on the substrate to define an ink chamber into which ink from the ink supply channel can be supplied and an ink ejection port from which ink can be ejected from the ink chamber and an internal rim interposed between the ink supply channel and the ink chamber. A support extends from the substrate outside the ink chamber. A thermal bend actuator extends from the support and terminates in a paddle within the ink chamber. The thermal bend actuator is configured to move the paddle towards and away from the ink ejection port upon actuation to eject ink in the ink chamber through the ink ejection port. A periphery of the paddle and the internal rim are shaped to limit flow of ink from the ink chamber back into the ink supply channel when the paddle is displaced towards the ink ejection port.

Abstract: Paint-metering cylinder for supplying a paint discharge nozzle with a paint material for painting plants, painting plants, and method for rinsing paint-metering cylinder. The paint-metering cylinder includes at least one rinsing device having at least two rinsing agent outlet openings.

Abstract: The present invention is directed to beverage dispensers and more specifically to a beverage dispensing nozzle that provides a short and direct beverage pathway. The nozzle is adapted for use in a self-cleaning assembly that provides for efficient cleaning of all of its surfaces that contact beverage products. The nozzle can be configured with an inlet port that provides a relatively direct product flow pathway from a beverage mixing chamber in the dispenser.

Abstract: A fuel injector assembly comprising an injector body having a leading end, a fuel inlet passage, a backleak passage and a trailing end that terminates in an end surface; a cap that fits over the trailing end of the injector body to define therebetween a chamber for receiving fuel from said backleak passage; and a seal for sealing said chamber to prevent the flow of fuel therefrom, wherein said seal is disposed between said end surface of the trailing end and an inlet end of said fuel inlet passage.

Abstract: There is provided a paint supply system in which a paint passage is less liable to be clogged with peeled-off deposits even when paint piping and the like are cleaned with a pig, and the substantially entire region of circulation piping can be cleaned efficiently and surely. In a paint supply system 1 in which color change valves 4 are connected to intermediate portions of closed loop paint circulation piping 3 extending from a paint tank 2 and returning to the paint tank 2 and a paint gun 5 is connected to each of the color change valves 4, a pig launching valve 25 is provided at a position on the upstream side of the paint circulation piping 7 at which a pig 27 can be launched linearly and which is closest to a paint pressure feed pump 6, and a pig discharging valve 26 is provided at a position on the downstream side of the circulation piping 7 at which the pig 27 can be discharged linearly and which is closest to the paint tank 2.

Abstract: An engine and high pressure pump are mounted onto a wheeled chassis. High pressure water is distributed to a rotating wand and nozzle assembly on the wheeled chassis so that as the chassis is moved along a linear path, high pressure water is sprayed onto an underlying surface to clean the surface. Optional diffusion plates may be used to prevent high pressure water from being sprayed directly onto the underlying surface in part of the rotational path defined by the wand and nozzle assembly.

Abstract: An exhaust emission purifying apparatus for an engine having: a reduction catalytic converter disposed in an exhaust system of the engine, for reductively purifying nitrogen oxides in the exhaust emission with a reducing agent; an injection nozzle for injection-supplying the reducing agent to an exhaust upstream side of the reduction catalytic converter in an exhaust pipe of the exhaust system; and a reducing agent supply device supplying the reducing agent to the injection nozzle, in which a recess portion is formed on an inner wall on a lower portion of the exhaust pipe, by concaving a site to which at least the reducing agent injection-supplied from the injection nozzle is attached, and also, a bottom wall of the recess portion is made detachable.

Abstract: A gas sprayer mounted on an edge removing robotic arm is disclosed, wherein the edge removing robotic arm circles around along the edges of a substrate and sprays a chemical solvent over the edge surface of the substrate to dissolve photoresist materials attached to the edges of the substrate; the edge removing robotic arm has a pumping conduit for sucking out the chemical solvent sprayed over the surface of the substrate and dissolved photoresist particles; the gas sprayer is mounted on the top of the edge removing robotic arm and comprises a hooked nozzle extending forward around the front end of the edge removing robotic arm and facing an opening of the pumping conduit to spray gas out so as to prevent the chemical solvent sprayed out from the edge removing robotic arm from splashing onto the interior of the substrate.

Abstract: An engine and high pressure pump are mounted onto a wheeled chassis. High pressure water is distributed to a rotating wand and nozzle assembly on the wheeled chassis so that as the chassis is moved along a linear path, high pressure water is sprayed onto an underlying surface to clean the surface. Optional diffusion plates may be used to prevent high pressure water from being sprayed directly onto the underlying surface in part of the rotational path defined by the wand and nozzle assembly.

Abstract: The invention relates to an ultrasonic standing-wave atomizer arrangement for producing a paint spray mist for painting a workpiece, with a sonotrode, with a component arranged lying opposite the sonotrode, a standing ultrasonic field being formed in the intermediate space between the at least one sonotrode and the component in the case of operation. At least one nozzle-shaped paint feeding device is arranged perpendicularly in relation to the center axis of the sonotrode and introduces the paint into the intermediate space for the atomizing process at least one paint discharge point, the component arranged lying opposite the sonotrode being a coaxially aligned reflector, and the end face of the latter, facing the sonotrode, having a step-shaped recessed formation and the depth of said recessed formation corresponding to a multiple of half the wavelength ? of the sonic vibrations in air that are produced in the sonotrode.

Abstract: A protective sprinkler head housing for allowing access to sprinkler heads and shafts for maintenance and repair. More particularly, the present invention relates to a device which allows for, and encloses, a working space around underground sprinkler heads. The device is placed around a sprinkler shaft in the ground and the plant material is placed on its outside. The top of the sprinkler head sits above the device. When the sprinkler needs to be accessed, the top of the device can be removed and an open interior space remains where a user can place his/her hands and/or tools to repair or replace a sprinkler head. This invention may be installed when the underground sprinkler system itself is first installed or alternatively may be installed at each sprinkler head as needed.

Abstract: Device (10) and method for preventing the drying of fluid products in a delivery head (12) of a machine for dispensing fluid products, wherein the delivery head (12) is provided with a plurality of delivery nozzles (11). The device (10) comprises first elements (25) to generate a conditioning flow, second elements (15, 20, 21) to convey the conditioning flow towards a space (19) underneath the delivery nozzles (11) and create in said space (19) an atmosphere different from that of the environment in which the dispensing machine is to be found during use. The delivery nozzles are divided into at least two groups and the space (19) is divided into at least two distinct conditioning zones (19a, 19b, 19c, 19d), disposed in correspondence with the groups of delivery nozzles (11). Different atmospheres are created in the conditioning zones (19a, 19b, 19c, 19d), according to the type of fluid product delivered by the corresponding group of delivery nozzles (11).

Abstract: A showerhead facilitating draining of water retained following shut-off. The showerhead includes a housing swivelably fitted on a ball-adapter which in turn includes an integral threaded segment for attachment to a water feed line. An air pathway is formed to extend from inside to outside the ball-adapter where it opens to generally atmospheric pressure. A flexible check valve in the form of an annular skirt is retained by an integral ring portion where the ball-adapter is threaded to the feed line. Under water-flow pressure, the skirt expands, blocking the passage. Upon shut-off, the skirt withdraws, instantly opening the air passage. Opening the showerhead to atmospheric pressure relieves the normally occurring suction effect which keeps water from draining completely from the showerhead spray holes. Thus avoiding the widespread problem of trapped water slowly evaporating and leaving behind stubborn and unsightly mineral deposits that eventually build up to clog showerhead spray holes.

Abstract: Treated port fuel injectors are disclosed. The treated port fuel injectors have a surface coated with a film which resists or limits deposit formation on the injector surface. The film may be formed by contacting the port fuel injector with: (i) a succinimide compound comprising the reaction product of polyisobutylene-substituted succinic anhydride and a polyamine; (ii) a Mannich base detergent; and (iii) a spark ignition fuel. The treated port fuel injectors may also include a film formed by contacting the port fuel injector with: (i) a Mannich condensation reaction product of a polyamine having a sterically-hindered primary amino group, a hydrocarbyl-substituted hydroxyaromatic compound, and an aldehyde; and (ii) a spark ignition fuel. Methods of forming films on port fuel injector surfaces are also disclosed.

Abstract: A vehicle is disclosed which includes a chassis and a storage and dispensing apparatus. The storage and dispensing apparatus can be mounted directly to the chassis or disposed within or on a body, which in turn is mounted to the chassis. The storage and dispensing apparatus has an opening therein to permit material to be transported therethrough. A conveyor assembly for selectively conveying materials from the opening of the storage and dispensing apparatus is also included. The conveyor assembly can include a dual auger arrangement. The vehicle includes a spreader chute that is operably arranged with the conveyor assembly to direct the materials to a spreader. A liquid storage system for storing liquid is provided. A liquid dispensing system is provided for selectively dispensing liquid from the liquid storage system.

Abstract: A jetting device and a method of jetting droplets of viscous medium onto a substrate. The jetting device includes a jetting outlet through which the droplets are jetted. The jetting device further includes a wall located at the jetting outlet, downstream of the jetting outlet seen in the jetting direction. The wall is provided with an orifice through which jetted droplets are permitted to pass through. A gaseous flow is provided within the space past the jetting outlet such that an adverse effect on the performance of the jetting device is prevented, the adverse effect resulting from the accumulation of viscous medium residue at the jetting outlet.

Abstract: The invention is an apparatus, system, and method for water-conserving irrigation utilizing check-valve equipped devices. By implementing a filtering device, for example a screen, adapted to connect to a connector of an irrigation outlet nozzle of said irrigation system, and employing a valve within the screen designed to prevent a flow of fluid out of the connector when a fluid pressure into said valve is less than a threshold pressure, every outlet to an irrigation system may be sealed to preserve water and prevent overirrigation caused by low head drainage.

Abstract: A gas sprayer mounted on an edge removing robotic arm is disclosed, wherein the edge removing robotic arm circles around along the edges of a substrate and sprays a chemical solvent over the edge surface of the substrate to dissolve photoresist materials attached to the edges of the substrate; the edge removing robotic arm has a pumping conduit for sucking out the chemical solvent sprayed over the surface of the substrate and dissolved photoresist particles; the gas sprayer is mounted on the top of the edge removing robotic arm and comprises a hooked nozzle extending forward around the front end of the edge removing robotic arm and facing an opening of the pumping conduit to spray gas out so as to prevent the chemical solvent sprayed out from the edge removing robotic arm from splashing onto the interior of the substrate.

Abstract: Tunnel sprayer for rows of plants, is of the type having opposing shields (S, S?) which substantially cover the whole heights of the opposing sides of at least one row, and which comprise fans (14) to create a flow of air which in delivery travels parallel to the flow of treatment liquid sprayed on to each side of the row by at least one corresponding bar (22) with nozzles (122) and which in intake sucks in the air and treatment liquid delivered by the shield operating on the other side of the row, so as to avoid the dispersion due to wind drift and limit losses in the air and drips of excess liquid on to the ground.

Abstract: A jet dispersing device includes a high pressure region having a flow inlet and a low pressure region having a flow outlet. A partition wall is positioned within the high pressure region such that the high pressure region is partitioned from the low pressure region. Additionally, the partition wall may be provided with at least one nozzle hole configured to jet a liquid from the high pressure region to the low pressure region such that the liquid is dispersed as fine particles. The partitioning wall may also have a cleaning fluid communication port having an opening area which is larger than an opening area of the at least one nozzle. Additionally, a valve mechanism configured to open and close the cleaning fluid communication port may also be provided.

Abstract: Exemplary embodiments can provide a fluid control valve, which reduces or prevents any bubble from being built up in the valve itself so as to protect other hydraulic equipment placed in a downstream side from having any malfunction due to such a bubble, and a droplet ejection device using the fluid control valve. A fluid control valve includes a tank, through which a fluid passes, an inlet port, through which a fluid flows into the tank, an outlet port, through which a fluid flows out of the tank, a valve plug that opens and closes at least one of the inlet port and the outlet port, a coupler connecting part of the inlet port side, which is located in an inlet passage connected to the inlet port, and a coupler connecting part of the outlet port side, which is located in an outlet passage connected to the outlet port. Piping is connected to the coupler connecting part of the inlet port side and the coupler connecting part of the outlet port side, each by using a coupler.

Abstract: An engine and high pressure pump are mounted onto a wheeled chassis. High pressure water is distributed to a rotating wand and nozzle assembly on the wheeled chassis so that as the chassis is moved along a linear path, high pressure water is sprayed onto an underlying surface to clean the surface. Optional diffusion plates may be used to prevent high pressure water from being sprayed directly onto the underlying surface in part of the rotational path defined by the wand and nozzle assembly.