Abstract: A conveyor-type warewash machine includes a housing through which racks of wares are passed along a conveyance path for cleaning. A rack drive system includes a rack engaging structure that moves back and forth in first and second directions. When moving in the first direction, the rack engaging structure moves an adjacent rack forward along the conveyance path. When moving in the second direction, the rack engaging structure leaves the adjacent rack substantially stationary. The drive system is configured to move the rack engaging structure in the first direction at a first average speed and to move the rack engaging structure in the second direction at a second average speed. The second average speed is faster than the first average speed so that the adjacent rack spends more time moving forward than being stationary. A seal assembly may be provided about a drive shaft of the drive system.

Abstract: A cleaning and drying-preventing method including: positioning a nozzle in a container such that a funnel-like inner circumferential surface of the container is located around a periphery of a distal end of the nozzle; sucking a liquid in the nozzle to retract a level of the liquid to a side of a supply passage; supplying a solvent into the container to form a swirl flow of the solvent turning around the distal end of the nozzle, and cleaning the nozzle by the swirl flow; supplying a solvent into the container to form a liquid pool of the solvent; and further retracting the level of the liquid in the nozzle to the side of the supply passage. A liquid layer, an air layer, and a solvent layer are formed in the nozzle in this order from the side of the supply passage, to prevent drying of the liquid in the nozzle.

Abstract: Methods of cleaning backing plates of electrode assemblies, or electrode assemblies including a backing plate and an electrode plate are provided. The methods can be used to clean backing plates and electrode plates made of various materials, such as silicon electrode plates and graphite and aluminum backing plates. The backing plates and electrode assemblies can be new, used or refurbished. A flushing fixture that can be used in the cleaning methods is also provided, the flushing fixture comprising a base plate comprising a recessed inner portion including and an upper surface configured to support the backing plate or the electrode assembly, and a cover plate configured to cover the base plate, the cover plate including at least one liquid passage through which a flushing liquid is introduced into an interior of the flushing fixture defined by the base plate and cover plate.

Abstract: A heat exchanger washing device includes a wash water storage chamber to store wash water in a case, a wash water injection chamber to jet the wash water stored in the wash water storage chamber to a heat exchanger, and a bypass path unit to guide the wash water jetted from the wash water injection chamber to a side surface of the heat exchanger after bypassing an upper surface of the heat exchanger.

Abstract: A bottom wall, a pitched top wall, and sidewalls cooperate to define a washbox for washing a part. The pitched top wall has an interior surface and an exterior surface. The exterior surface is pitched with a maximum distance from the bottom wall at a peak of the pitched top wall. The exterior surface is smooth and free from projections. The washbox further includes ports that extend through the sidewalls to provide fluid to the washbox. A plurality of bores extend through the pitched top wall and are arranged in a row echelon pattern for spraying the part.

Abstract: A fluid inlet for a dishwasher configured to help manage acoustic emissions is provided. The fluid inlet includes a nozzle that defines a plurality of relatively small-diameter orifices and a plurality of relatively large-diameter orifices. The large diameter orifices may define a diverging cross-section. The relatively small-diameter orifices may be interspersed in a plurality of clusters between the relative larger diameter orifices. The fluid inlet may further include an enclosure defining a vertically descending channel from the nozzle toward a bottom of a tub of the dishwasher and one or more dampers within the enclosure such that the water exiting the nozzle cascades down onto and over the dampers and out of the enclosures through one or more outlets of the enclosure to the bottom of the tub.

Abstract: A spin-rinse-dry (SRD) apparatus includes a housing; a pedestal in the housing, comprising a rotatable wafer supporter for holding and spinning a semiconductor wafer; and at least a first liquid dispensing tube in adjacent to the pedestal. The first liquid dispensing tube includes a bended tubular part and an outlet nozzle that is situated beyond an edge of the semiconductor wafer.

Abstract: An automatic dishwasher having at least one primary sprayer and at least one auxiliary sprayer located within a treating chamber. Wherein the at least one auxiliary sprayer is removably mounted in the treating chamber.

Abstract: Embodiments of the present invention are related to a detergent dispenser configured to attach to an interior surface of a dishwasher door. The detergent dispenser may comprise a reservoir configured to hold detergent, wherein a portion of the upper wall of the reservoir has been removed to reduce a cross-sectional length thereof such that water flowing down the dishwasher door is encouraged into the reservoir. The detergent dispenser may also comprise a dispenser door comprising a closed configuration and an open configuration, wherein the dispenser door is configured to cover the reservoir in the closed configuration. The detergent dispenser may be configured to encourage water flowing down the interior surface of the dishwasher door to enter the reservoir when the dispenser door is in the open or closed configuration.

Abstract: A conveyor warewasher for washing wares includes a first tank including a drain system having a drain outlet and a drain stop movable between a drain outlet closed position and a drain outlet open position. A second tank includes a drain system having a drain outlet, an associated drain path that leads to the first tank and an associated drain path stop moveable between a drain path open position and a drain path closed position. A drain control assembly includes a common drain actuator operatively connected to cause both (i) movement of the drain stop from the drain outlet closed position to the drain outlet open position and (ii) movement of the drain path stop from the drain path closed position to the drain path open position.

Abstract: A cleaning system for removing contaminants on a surface of a patterned substrate for defining integrated circuit devices is provided. The system includes a substrate carrier for supporting edges of the patterned substrate, and a cleaning head positioned over the patterned substrate. The cleaning head includes a plurality of dispensing holes to dispense a cleaning material on the surface the patterned substrate for defining integrated circuit devices, wherein the cleaning material includes polymers of a polymeric compound. The cleaning head is coupled to a storage of the cleaning material, which is coupled to the cleaning material preparation system. A support structure holds the cleaning head in proximity to the surface of the patterned substrate.

Abstract: Disclosed is a substrate processing apparatus including a processing vessel in which a target substrate W is processed by using a high-pressure fluid in a supercritical state or a subcritical state, and pipes that are divided into a first pipe member and a second pipe member in a flowing direction of the fluid and circulate the fluid are connected to processing vessel. A connecting/disconnecting mechanism moves at least one of first and second pipe members between a connection position and a separation position of first pipe member and the second pipe member, and opening/closing valves are installed in each of first and second pipe members and are closed at the time of separating pipe members.

Abstract: A pet waste disposal device having a motor driving a set of cutting blades inside of an open ended plenum. A water supply such as a garden hose provides water to a nozzle or jet inside of the plenum, the water washes away the waste as it is chopped by the blades. The motor may be electrical, gasoline driven, or water driven. The plenum may have a safety screen across the open end. In preferred embodiments, the device may be mounted on an elongated support with a hand grip at one end and the plenum and motor at the other end.

Abstract: A dishwasher having a tub defining a wash chamber for washing dishes and a dish rack located within the wash chamber. The dishwasher also has a spray arm assembly configured to spray a first flow of wash liquid toward the dish rack, thereby providing a first wash zone. A spray manifold provided within the wash chamber is configured to provide a second flow of wash liquid toward the dish rack, thereby providing a second wash zone.

Abstract: A portable manual vehicle wash assembly including a base removably attachable to a top exterior surface of a vehicle. A hollow pipe is attached to the base and includes an inlet formed at a first end thereof, and an outlet at a second end thereof. The inlet is adapted to receive an end of a first hose in fluid communication with a water source. The outlet is generally directed away from the exterior surface of the vehicle, and has a swivel member attached thereto. The swivel member is connected to a water emitter, typically in the form of a second hose or a spray nozzle.

Abstract: A radiometer is provided. The radiometer includes a sensor and a radiation transparent dome. The radiation transparent dome surrounds the sensor. The radiometer also includes one or more fluid nozzles. The one or more fluid nozzles are adapted to apply a fluid on the radiation transparent dome in order to clean the surface of the radiation transparent dome.

Abstract: Disclosed are a flow-through washing method and a flow-through washing apparatus which efficiently remove dust adhering to the surface of a substrate and prevent dust from adhering to the surface of the substrate again after washing. The flow-through washing method runs washing liquid (L) inside a washing tank (2) in the lateral direction, and applies an ultrasonic vibration to the washing liquid (L) in a state in which an object (W) to be washed is immersed in this washing liquid (L), whilst washing this object (W). By regulating the flow rate of the washing liquid (L) flowing in any of the feed ports (3) and/or discharge ports (5) of a plurality of feed ports (3) which feed the washing liquid (L) to the washing tank (2) and plurality of discharge ports (5) which discharge washing liquid (L) from the washing tank (2), the washing liquid (L) inside the washing tank (2) can be set so as to run in a laminar flow state.

Abstract: An on-board optical sensor cover includes a holder and a washer nozzle. The holder holds an optical sensor. The optical sensor has a lens and is mounted above a window of a vehicle outside the vehicle. The washer nozzle performs a washing operation to wash a lens surface of the lens of the optical sensor held in the holder or a glass surface of a cover glass located facing the lens if the cover glass exists by spraying a washer fluid, supplied from a washer fluid tank, onto the lens surface or the glass surface. The optical sensor cover is located above the window outside the vehicle so that the washer fluid spayed from the washer nozzle flows to a window surface of the window after washing the lens surface or the glass surface.

Abstract: By a method and a device for preventing corrosion on and in the region of a gas inlet nozzle during nitric acid condensation, contact of the condensing gas with the nozzle and with the surroundings of the nozzle are supposed to be minimized. This is achieved in that the gas inlet nozzle has a sleeve on the inside in the transition region to the interior of the condenser, by which sleeve a gas inlet orifice in the form of an annular gap is formed, whereby the annular space is provided with at least one feed opening for secondary air, so that an enveloping flow of secondary air is produced around the entering NO gas.

Abstract: The application is directed to a spray arm arrangement for a dishwasher, comprising: (a) a support having a hub portion; and (b) a spray arm having at least one arm portion comprising at least one spray nozzle, and a generally tubular mounting portion connected to the arm portion, said mounting portion having first and second bearing surfaces bearing against the hub portion, said first bearing surface being located at a shorter axial distance from the arm portion than the second bearing surface. In accordance with the invention (c) said first bearing surface is located within said hub portion proximate the axial end of the hub portion facing towards the arm portion, and (d) said second bearing surface comprises a projection which axially extends from said mounting portion into said hub portion.

Abstract: Apparatus and methods for cleaning ion implanters and/or components thereof are described, utilizing cleaning agents reacted with residue deposits to effect removal thereof. An endpoint detection apparatus and method are also disclosed, which may be integrated in the cleaning apparatus and methods to provide highly efficient utilization of the cleaning agent and avoidance of deleterious effects that otherwise can occur when cleaning agents are continued to be exposed to an implanter or components thereof after cleaning has been completed.

Abstract: A processing chamber for post-wet-etch removing of drying fluid (DF) is disclosed. The chamber includes a chamber wall surrounding a processing volume and a plurality of nozzles disposed annularly about the processing volume and arranged into a set of nozzle rows that includes at least one nozzle row. The chamber also includes a plenum and a set of manifolds coupled to the plurality of nozzles to deliver the supercritical CO2 to the plurality of nozzles. Each nozzle has a nozzle outlet directed toward an interior portion of the processing volume and the nozzles are configured to flow the supercritical CO2 toward the substrates in a manner that minimizes recirculation loops and vortices.

Abstract: A method for cleaning semiconductor substrate using ultra/mega sonic device comprising holding a semiconductor substrate by using a chuck, positioning a ultra/mega sonic device adjacent to the semiconductor substrate, injecting chemical liquid on the semiconductor substrate and gap between the semiconductor substrate and the ultra/mega sonic device, changing gap between the semiconductor substrate and the ultra/mega sonic device for each rotation of the chuck during the cleaning process by turn the semiconductor substrate or the ultra/mega sonic device clockwise or count clockwise.

Abstract: The cleaning apparatus for solder paste in apertures according to the present invention comprises a stencil, a guiding plate, and a blower. The stencil has a plurality of apertures with residual solder paste on the sidewalls thereof. The guiding plate is disposed above the stencil and has a plurality of wind-guiding pillars and a plurality of wind-guiding holes. The locations of the wind-guiding pillars are opposite to the locations of the apertures; the wind-guiding holes are located around the wind-guiding pillars. The blower is disposed above the guiding plate and provides a gas to the guiding plate. The gas is guided into the apertures by means of the wind-guiding pillars and the wind-guiding holes and pushes completely the solder paste therein out. Thereby, accumulation of solder paste in the sidewalls of the apertures can be avoided. Consequently, deterioration of adhesion of electronic components caused by fewer amount of solder paste printed on the carrier can be prevented.

Abstract: A surface cleaning device having a steering assembly is provided. The surface cleaning device includes a foot, a handle assembly with a user manipulated handle, and a steering assembly coupling the handle assembly to the foot. The steering assembly includes a means for biasing the foot with respect to the handle assembly. Movement of the handle assembly stores energy within the biasing means so that the biasing means exerts a corresponding force on the foot.

Abstract: An adjustable nozzle dispenser and a multi-nozzle dispenser are disclosed for washing an aerofoil of a gas turbine engine. The dispensers are characterized by their nozzle arrangements being capable of washing at least two different parts of the aerofoil. A system and a method of operating such a nozzle dispenser is included.

Abstract: Among other things, there is shown a device for cleaning or rinsing one or more paint roller covers simultaneously. In certain embodiments, a container is provided with one or more spindles within for accommodating the covers. Hubs to support or to rotate the covers may be on the spindles. A top closes the container and has a conduit connected to it, so that the conduit will be placed adjacent to the spindles when the container is closed. The conduit has a series of holes and/or slots to spray fluid toward covers on the spindles, making the covers spin around the spindles. Connections for fluid flow, for example from a consumer hose, are included to allow water or other fluid to flow into the conduit.

Abstract: The conventional washing apparatus has a double-cup washing tank that joins and separates to let work be placed therein, with nozzles set on the inner cup to allow a passage between it and the outer cup for spent liquid and/or air. The work is cleaned by washing detergent spirally flowing along the periphery of the inner cup by suction power within the passage, and then dried. Suction is not generated within the inner cup, so the spiral flow is too weak to make the tornado effect. This invention though resolves the above issues by an encased washing apparatus having a capsule-shaped washing chamber that joins and separates, has nozzles thereon, has a work table within that rotates by a drive device, has a drain at the bottom, and is characterized by washing detergent, cleaning water and/or air swirling by negative pressure within the washing chamber and then discharging into a drain.

Abstract: A structural member is designed to define a fluid distribution conduit receiving cavity within its interior volume. An elongate extruded plastic cover snap-fits onto the member to conceal the conduit but permits nozzles and the like to extend therethrough so that fluid may be distributed from the conduit and/or serviced as necessary without removing the cover. The cover effectively supports the conduit by trapping it against a compression pad on the cavity floor.

Abstract: A dishwasher having a tub defining a wash chamber for washing dishes and a dish rack located within the wash chamber. The dishwasher also has a spray arm assembly configured to spray a first flow of wash liquid toward the dish rack, thereby providing a first wash zone. A spray manifold provided within the wash chamber is configured to provide a second flow of wash liquid toward the dish rack, thereby providing a second wash zone.

Abstract: A cleaning device for cleaning of the inside of tanks and similar containers by a cleaning fluid, the cleaning device including a connector part for connecting the cleaning device to a piping system, a rotor part rotatably arranged relative to the connector part and a holding part for rotatably holding the rotor part adjacent to relative to the connector part, and where the holding part is provided with a first holding arrangement which co-operates with a corresponding second holding arrangement on the connector part releasably hold the holding part to the a connector part, where the holding part can rotated around its longitudinal direction between a holding position and a releasing position.

Abstract: A method and apparatus for cleaning, drying, coating, baking etching and deposition of surfaces on glass substrate as it transitions thru and between small gaps between hydro-static porous media bearings. Due to the non-contact nature of the device extremely high pressures can be induced upon the work piece through various fluids without damage to the substrate, allowing the system to utilize the viscous nature of fluids to accomplish the desired cleaning, drying, coating, etching or baking. The process also allows for simultaneous and immediately sequential ordering of processes.

Abstract: A vehicle mounted cleaning device cleans a series of large garbage containers at one at time, while recycling, reusing and retaining the cleaning fluid, until disposal thereof is required. The vehicle mounted cleaning device permits the vehicle to be maneuvered down a street. The cleaning device has a cleaning bin or wash bay to receive the garbage or trash container. A cleaning fluid tank communicates with nozzles in the wash bay to provide fluid for cleaning the garbage container. After the fluid is used to clean the garbage container, it is filtered, treated and returned to the cleaning fluid tank for reuse.

Abstract: A paint roller enclosure and cleaning device is disclosed that eliminates the need for a user to manually clean a roller tool after its use. The device comprises an enclosure with an interior volume wherein a used paint roller is secured. A spray pipe with a plurality of apertures directs fluid directly onto the roller. Feed for the spray pipe is controllable by a ball valve that regulates the flow of fluid, updating the intensity and volume of fluid being entered into the enclosure. When flowing, the fluid sprays from the spray pipe within the enclosure directed at a paint roller and handle. The roller is forcibly rotated by the spray fluid and cleaned of residual paint and debris without requiring the user to do so by hand. Fluid then drains through a drainage hole at the base of the enclosure, into a flex pipe and into a drain or appropriate container.

Abstract: A vehicle mounted high pressure exhaust duct cleaning system is disclosed. The vehicle mounted high pressure exhaust duct cleaning system includes a van-type truck, an internal combustion engine; a fluid reservoir, a high-pressure fluid pump, and a fluid heater. A method of cleaning exhaust ducts is also disclosed.

Abstract: An ozone delivery system, method, and apparatus are disclosed. Ozonated water can be used to disinfect and clean various surfaces, equipment, and animals in a dairy setting. Animals can be disinfected and protected from disease through the use of wash-pen and sprayer injections, and other footbath products. Ozone can be educted into a drop hose and a pre-dip line at periodic intervals and into a foot bath to provide refreshed ozonated water. The ozone delivery system and method sterilizes all equipment and floor surfaces without damaging diary equipment components. The system can incorporate computer-controlled options such as maintaining off gas levels, maintaining cleaning and disinfecting records, monitoring ozonated water levels, monitoring concentrations of ozone in said ozonated water, controlling entry and exit gates, controlling a drainage system, and monitoring and educting ozone in a foot bath and wash pen.

Abstract: A medical sterilization container has a removable container cover, which is provided in a wall area (4) with gas-exchange openings (5), with a filter unit (55) for gas exchange has an interchangeable filter sheet covering the gas-exchange openings (5) on the inside, which is arranged within a ring-shaped circumferential frame element (15) and is held pressably against an inside of the wall area (4) by a pressure washer (36) provided with openings (45). The pressure washer (36) is detachably connected to frame element (15) or the wall area (4) and has a ring groove (48) with a preferably elastic sealing ring (49), which seals the wall area (4) provided with the gas-exchange openings (5) against the frame element (15). To prevent a shifting of and/or damage to the filter sheet during a clamping process, the pressure washer (36) can be pressed against the wall area (4) by a spring washer (35).

Abstract: A flux cleaning apparatus for cleaning an object with flux by removing impurities that include flux from the object with flux includes a body, a mount, at least one steam spraying nozzle, and a steam supplying unit. The mount is coupled with the body for mounting the object with flux. The at least one steam spraying nozzle is coupled with the body for spraying steam toward the object with flux on the mount such that the object with flux is cleaned by the steam sprayed from the steam spraying nozzle. The steam supplying unit is coupled with the body and the steam supplying unit supplies steam to the at least one steam spraying nozzle.

Abstract: In an embodiment of the present disclosure, a wind turbine blade treatment apparatus comprises a support having a frame with an edge follower configured to be positioned near an edge of a wind turbine blade. The support also includes a side member connected to the frame, configured to extend at least partially along a width of the wind turbine blade and to be positionable near the wind turbine blade. The wind turbine blade treatment apparatus further comprises a sprayer connected to the support, configured to spray fluid onto the wind turbine blade.

Abstract: An apparatus for wet treatment of an object includes a treatment bath in which an object to be treated is received and treated; a plurality of object supporting rods rotatably installed in the treatment bath and having a plurality of slots formed in surfaces thereof to support an object so that the object stands in a direction perpendicular to a bottom surface of the treatment bath; and a rotating means connected to the object supporting rods to rotate the object in a circumferential direction by rotating the object supporting rods. Treatment fluid injecting holes for injecting a treatment fluid to the object and treatment fluid channels for supplying the treatment fluid to the treatment fluid injecting holes are formed in the object supporting rods. Thus, a dead zone in the treatment bath is removed and the treatment fluid may flow uniformly and smoothly, which improves treatment efficiency and treatment uniformity.

Abstract: The invention is directed toward a brine injector for sanitizing a condensate drain to reduce sludge and pathogens. The bring injector, which attaches to a spray assembly within the condensate drain, supplies brine (23.3% sodium chloride and 76.7% hot water) into the a saddle valve of the spray assembly. The brine injector may include a brine reservoir having a polyethylene non-corrosive coating, a pump to draw brine out of the brine reservoir, and a filter casing. The filter casing is coated with a polyethylene interior lining. Filter casing further includes 15-micron nickel copper alloy weaved filter cloth. The brine reservoir may include an electric heater to heat the brine prior to injection. A main controller communicates with the treatment chamber and spray assembly. Such main controller is capable of engaging the spray assembly to disperse a sufficient quantity and pressure of hot water within the shaft to dislodge any sludge.

Abstract: The invention relates to a dishwasher comprising a cabinet (1, 2), a door (3; 13, 14) located in the cabinet for allowing access to the inside of the cabinet, and a water tank (9) to be filled with water for washing. According to the invention, the water tank (9) is positioned within the cabinet (1, 2).

Abstract: After a liquid chemical treatment is finished, in parallel with a washing away treatment and/or a drying treatment, by spraying from a nozzle for a cleaning liquid supplied by a cleaning line to an outer surface of a nozzle for a liquid chemical, crystals and the like of components of the liquid chemical adhered on the outer surface of the nozzle are removed. In the cleaning treatment, a spraying time of the cleaning liquid is five seconds to ten seconds. In addition, the components of the cleaning liquid is not specifically limited, however, since ammonium phosphate tends to be solved in purified water, if a liquid chemical containing ammonium phosphate is used, it is preferable to use purified water as the cleaning liquid. Depending on the components and the like of the liquid chemical, a solution that can solve the crystals and the like may be used in stead.

Abstract: A dishwasher includes a spray assembly positioned in the wash chamber of the dishwasher's tub. The spray assembly includes a spray arm that is driven by an input shaft. The input shaft is operable to both drive the spray arm and selectively divert wash fluid to the fluid nozzles associated with the wings of the spray arm.

Abstract: Lettuce can be commercially harvested by removing the bottom portion of a head of lettuce to obtain only the top portion of the head. After the top portion of the head is obtained, a center section of the top portion of the head is removed to leave a cup-shaped portion of the head. The bottom portion of the head is removed and the center section of the top portion is removed in the field in which the head is harvested.

Abstract: The invention discloses a water-saving toilette wash device and pertains to the technical field of toilette articles. The technical scheme of the invention: It comprises a water cleaning pad and a support plate behind the water cleaning pad. Wiper gibbosities are disposed at the front face of the water cleaning pad and arranged in lines or in texture. Water outlet openings are disposed in the water cleaning pad. A water hose accessible to the water outlet openings is installed on the support plate. The wholesome effect of the technical scheme provided by embodiments of the invention: The wash pad continuously and directly sends clear water to the surface to be cleaned and applies water to and washes head, neck and face with the water cleaning pad synchronously. It avoids the useless water flow and spills, raises wash efficiency, and doesn't increase the water consumption of the wash per se, so that it can significantly reduce waste of water resource.

Abstract: The present invention relates to a decontamination device of the type comprising a compressor (1) supplying pressurized gas, with interposition of means of pressure regulation, means (5) suited for misting a decontamination product in the form of fine droplets in a room to be treated. This device is characterized in that the compressor (1) directly supplies the means of misting (5) at a desired pressure for use, and without interposition of a buffer tank, where the means of pressure regulation (11) are constituted by a controlled flow rate leak between the outlet (S) of the compressor (1) and the inlet (E) of the means of misting (5).

Abstract: Device for cleaning solar modules, of both the photovoltaic and solar thermal type, by projection of a cleaning liquid onto the surface of said modules in the form of spray, is described. The device is of the towed type, for mounting on a tractor vehicle or similar, and is implemented based on an articulated unit which comprises a coupled parallelogram structure, having the possibility of pivoting around a support structure solidarily joined to the carrier vehicle, joined by the opposite end to a telescopic arm which articulately includes a projection bar on its distal end, with variable positioning, integrating a multiplicity of nozzles for projecting cleaning liquid. The projection bar includes mechanical sensors for positioning thereof on the surface. The different movements are carried out in a controlled manner by actuation of hydraulic cylinders and the articulated joint between the projection bar and the telescopic bar includes a means for adjusting the maximum inclination angle of the projection bar.

Abstract: Provided area cleaning apparatus and an associated method of using the disclosed apparatus wherein the apparatus utilizes one or more nozzles configured to provide a coherent stream of one or more cleaning fluids for removing accumulated fine particulate matter, sludge, from surfaces. The nozzles may be sized, arranged and configured to provide coherent streams that maintain the initial stream diameter for a substantial portion of the maximum dimension of the space being cleaned. The apparatus and method are expected to be particularly useful in the cleaning of heat exchangers incorporating a plurality of substantially vertical and narrowly spaced tubes by directing cleansing streams along a plurality of intertube spaces.

Abstract: A wash wand attachment system is provided, including a wash wand having a first end configured for receiving an attachment and defining a longitudinal axis, a key formation secured to the first end and having a releasable latch, and a wand attachment having a socket configured for releasably receiving the key formation. The key formation and the socket are constructed and arranged such that upon relative engagement, the attachment is prevented from rotational movement about the axis, and also from movement in the direction of the axis.