Abstract: A set of nozzle inserts is provided for use with an irrigation sprinkler system. The nozzle set includes a plurality of nozzle inserts that are removably connected to one another via a common carrier. The nozzle set is adapted for storage, transportation and handling in a nested arrangement with another nozzle set, which, in turn, is similarly adapted for storage, transportation and handling in a nested arrangement with other nozzle sets. This nested arrangement facilitates storage, transportation and handling of a relatively large number of nozzle inserts in a manner that protects each insert from unintentional removal from its set.

Abstract: A spray head is described for spraying the molds in pressure casting machines, and in it spray nozzles are mounted on bars equipped with supply passages, which form units which can be placed together. To fit these bar units together, coupling elements in the form of cylindrical pins provided with passages are provided, which are provided with recesses having sloping planes which are engaged by the conical tips of Allen screws and thus produce a clamping together of adjacent bar units. The coupling elements are provided at both end faces with sealing rings and their bore aligns with the passages in the bars. Through the use of angle pieces media supply bars bearing spray nozzles can be joined together at any angle to one another.

Abstract: Spraying tool for foundry molds with spraying nozzles, which can be controlled separately for several media per spraying nozzle and/or for a spraying nozzle per medium.

Abstract: An apparatus for applying fluid from a fluid source to a substrate. The apparatus comprises a housing configured to receive the fluid from the fluid source, a nozzle arrangement in fluid communication with the housing, and a lever pivotally mounted to the housing for releasably securing the nozzle arrangement thereto.

Abstract: A gas supplying apparatus for supplying deposition gas onto a substrate surface, the gas supplying apparatus comprising: a gas supplying ring with one or more gas supplying channels formed along the interior of the gas supplying ring and with a plurality of gas distribution channels directed toward a center of the gas supplying ring; and a plurality of adapters with gas nozzles connecting to the gas distribution channels, respectively, that detachably connect to the interior of the gas supplying ring, wherein the gas nozzles have a variety of injection configurations.

Abstract: A shower head assembly includes a hollow handle and a head. A base plate is engaged with the head and a rotatable member is connected to the head and a fixed plate is secured to the rotatable member. Two tubular members are located between the fixed plate and the base plate. Two springs are received in two respective interiors of the two tubular members and biased between the fixed plate and the base plate. A pattern plate having a plurality of pattern holes is fixed to the rotatable member. A filtering assembly including a cap, an adjusting member with a plurality of ribs, a first filter, a separation ring with a plurality of holes and a second filter. A bolt extends through the filtering assembly and connecting the filtering assembly to the pattern plate. A volume control device is engaged with a connection hole defined through a wall of the handle so as to control water volume through the handle.

Abstract: The invention comprises, in one form thereof, a water circulator that connects to the pressurized water inlet in a swimming pool. Water from the pool is pumped through the pool's filter system and into the water circulator through the pool inlet. The water circulator includes a jet tube that is vertically oriented and proximate to the pool's side wall. The pressurized water exits the jet tube through several nozzles in the jet tube. The nozzles direct the pressurized water along the side wall to thereby direct debris toward the pool outlet. The pool outlet carries the debris and water to the pool's filter system. The nozzles direct the water away from the pool outlet so that the water current travels along the majority of the side wall before reaching the pool outlet. Thus, more debris may be picked up in the current and slower moving water passes the pool outlet. The jet tube further includes one or more outlets proximate to the pool floor.

Abstract: A watering nozzle assembly includes a core tube received in the barrel of the nozzle. A first seal ring and a second seal ring are respectively mounted to a second end of the core tube, and a plurality of apertures are defined radially in the core tube and located between the first and second seal rings. A control rod pivotably connected to an operation bar movably seals the first end of the core tube. A nozzle is threadedly connected to the core tube. A block is fixedly connected to the second end of the core tube and removably seals the nozzle. The nozzle cab be moved relative to the core tube to allow water flowing from the gap between the block and the stepped surface in the nozzle. The first and second seal rings ensure that the nozzle assembly does not leak whichever status it is operated.

Abstract: The present invention provides an automatic elevating shower, which is typically comprised of a main body including a shower head, an elevating rod, a sleeving, a switchgear and hoses, said main body is at least possessed of one elevating component; said shower head is connected to a stub pipe of the supply pipe via a T-joint; said sleeving is mounted on a relative static position vertically, and there are two ports such as upper and low ports built on the top and bottom ends, and a hollow cylindrical cavity built upon between said upper and low ports; said elevating component is mounted on said elevating rod vertically, which is fit into said cylindrical cavity of said sleeving via a piston fixed on the bottom end; said switchgear is possessed of four ports respectively connecting to the two ports of the sleeving, the third port of the T-joint connecting the shower head and another stub pipe of the supply pipe, so that shifting said switchgear can control the third port of the T-joint of the shower head conn

Abstract: An atomizer includes a T-shaped chamber with tapered insides and an outlet which is in communication with the chamber. A first path is located in a center area in the chamber so as to introduce molten metal therein and two second paths are introduced into the chamber so as to send inert gas into the chamber. A separator is located in the chamber and located at an outlet end of the first path. A narrow passage is defined between an inside of the outlet and the separator. The impact of the inert gas and the molten metal atomizes the metal.

Abstract: A cup (6) for spray guns, comprising a disposable container (8) joined in removable fashion to a lid (5) with axial outflow fitting (7), independent of the cup and integrated with the body (4) of the gun (1), and a lining element (18) whose shape is complementary to that of the lid (5) and which is inserted in removable fashion within said lid (5) between the container (8) and the outflow fitting (7).

Abstract: A spray head for discharging fluid includes a turret assembly in which a nozzle carrier is rotatable relative to a housing about an axis, and a plurality of nozzles mounted on the carrier radially outward from the axis. The carrier is mounted for linear movement relative to the housing along the carrier axis from a retracted position in which one of the nozzles is mated with an outlet in the housing for discharging fluid, to an extended position in which the carrier is rotatable about the carrier axis to align a different nozzle with the outlet, and back to the retracted position in which the different nozzle is mated with the outlet. A latch on the housing is moveable radially with respect to the carrier axis between a latching position holding the carrier in the retracted position and a release position allowing the carrier to move to the extended position.

Abstract: A hand-held sprayer for bathroom capable of solving such a problem that an installation space for a sprayer is required at one corner of a bathroom, wherein a flow passage is formed in a casing (1), a spray nozzle (39) is connected to the tip of the flow passage, and the tip of the spray nozzle (39) is projected from the casing (1), whereby the conventional sprayer can be eliminated by fitting the hand-held sprayer to the feed water means of existing shower equipment (S), i.e., to the tip of a flexible tube (T).

Abstract: A system for dispensing liquid material with different configurations of air assisted fiberization or filament movement (e.g., meltblowing, controlled fiberization). In particular, front access for mounting a selected nozzle only requires adjustment of one lever and one fastener. Features of the lever and nozzle allow assisted ejection of the nozzle, even when the nozzle has become adhered to a die body through use. In addition, a nozzle mounting surface of the die body provides a universal interface to the various types of nozzles. An air cavity in the die body and air troughs in selected types of nozzles balance and adjust air flow.

Abstract: A shower head having dual turbines. The shower head includes a body having an inlet for connection to a water conduit, a first outlet nozzle formed on the body, a second outlet nozzle formed on the body, a first turbine operably connected to the first outlet nozzle, and a second turbine operably connected to the second outlet nozzle. The shower head may include a flow actuation system taking the form of an actuator ring, a valve connected to the actuator ring and forming a flow channel, a first actuation point defined on the actuator ring, a second actuation point defined on the actuator ring, and a plunger situated within the flow channel. The plunger extends radially outwardly from a center of the valve when aligned with one of the first and second actuation points.

Abstract: A liquid flow restrictor in the supply line of an eductor or other dilution or dispensing device has a rotatably mounted disc with opposite faces and a plurality of apertures or holes, which provide different flow restrictions between the faces, and a pair of flow conduits sealingly engaging against the faces, whereby on rotation of the member the zones are selectively brought into communication with the conduits to provide a desired flow restriction.

Abstract: A sprinkler assembly comprising in combination a sprinkler mounting stake and a sprinkler comprising. The sprinkler comprises a sprinkler body formed with a support member receptacle and locking portion. The sprinkler mounting stake comprises a ground insertion portion and a sprinkler support portion. The sprinkler support portion comprises a lateral support member extending parallel to a longitudinal axis of the stake and retention member. The support member is insertable within the support member receptacle and a retention member prevents unintentional disengagement of the sprinkler body from the mounting stake.

Abstract: A pressurized fluid delivery apparatus such as a pressure washer or sprayer including a pump adapted to provide a pressurized fluid, a conduct fluidly connected with the pump to receive the pressurized fluid from the pump, a fluid accessory fluidly connected with the conduit to receive the pressurized fluid from the conduit, and a quick-disconnect assembly selectively fluidly connecting the fluid accessory and the conduit. The quick-disconnect assembly includes a male fitting coupled to one of the fluid accessory and the conduit. The male fitting includes a male component and a first non-circular surface. The quick-disconnect assembly also includes a female fitting coupled to the other of the fluid accessory and the conduit. The female fitting includes a female component having an opening for receiving the male component and a second non-circuit surface coupled to the first non-circular surface to prevent rotation between the male fitting and the female fitting.

Abstract: A drop on demand printer has a nozzle with an orifice and a surrounding annular land. Surrounding the land is an edge, which is surrounded by a perimetrical surface that is inclined to the land at an angle ?. A pressure controller maintains a positive overpressure on liquid to be printed such that a cap of liquid is substantially always present covering the orifice and the land. The edge between the land and the perimetrical surface prevents liquid from overflowing, and maintains the cap, if the pressure is maintained between lower and upper limits disclosed. The liquid to be printed preferably wets the orifice land, which may be alumina, glass, ceramic, and others. Liquids with very small, even zero, wetting angles relative to the land may be used, such as water and organic solvents, including, isopropyl and ethyl alcohol and chloroform. The liquid can be loaded with dissolved polymers, or particles, such as of polymer or ceramic.

Abstract: A shower head assembly includes a main body, a water outlet panel, a mounting tube, a shade, and a locking nut. Thus, the mounting tube is indirectly combined with the water outlet pipe by the universal connector to form a pivotable shower head and is directly combined with the water outlet pipe to form a fixed shower head, thereby enhancing the versatility of the shower head assembly. In addition, the shower head assembly is provided with a shade having a variable shape to vary the pattern and profile of the shower head assembly, thereby enhancing the aesthetic quality and decreasing costs of the shower head assembly.

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

Abstract: The invention recites an apparatus comprising a nozzle holder able to retain at least one nozzle and disposed on a pressure washer wand. The nozzle holder comprises a body including a bore extending therethrough. The bore is sized to engage the pressure washer wand. The nozzle holder further includes a boss interconnected with and having an aperture sized to receive at least one nozzle.

Abstract: An air gun with a quick-releasing device has a body, a head tube attached to the body and a detachably functional tip, wherein the quick-releasing device is attached to a distal end of the head tube to secure the detachably functional tip. The quick-releasing device has a slit defined in the distal end of the head tube to communicate with an inner space of the head tube, a locking sheet movably received inside the slit to partially enter the inner space of the head tube, and a locking lever pivotally mounted on the head tube to drive the locking sheet to move in a vertical direction. Thereby, the locking sheet is allowed to leave the inner space of the head tube when a user presses the locking lever to enable easy release of the attached functional tip and then to exchange the original tip for another functional tip.

Abstract: In an immersion nozzle exchanging apparatus for supporting an immersion nozzle at a flange underside thereof by a plurality of key plates parallel provided on both sides to horizontally pushing out and exchange an immersion nozzle much used with a new immersion nozzle, in order to secure high realability in the joint surface at between the immersion nozzle and the refractory positioned above thereof, the immersion nozzle exchanging apparatus comprises urge pressure providing mechanisms independent of each key plate for continuously changing a deflection amount of a spring body thereof depending on a moving position of the immersion nozzle upon exchanging the immersion nozzle and at the same time changing an immersion nozzle urging force caused on the respective key plates, and a slide frame having a spring body supporting seat surface formed with a taper surface in part thereof. The immersion nozzle to be used therein has a concave surface for holding a seal member having a depth of 1.

Abstract: An irrigation sprinkler includes a head having a first water outlet passage that communicates with a nozzle receiving socket. A nozzle is slidably mounted in the nozzle receiving socket. The nozzle includes a hollow support body defining a second water outlet passage that communicates with the first water outlet passage. The nozzle also includes a portion obstructing the second water passage and defining a nozzle orifice. The nozzle also includes a cantilevered pry flange that extends in a lateral direction from an outer end of the support body. The pry flange has a portion that terminates short of a wall of the nozzle receiving socket to create a gap sized for ready insertion of a tool to facilitate removal of the nozzle from the nozzle receiving socket. The sprinkler includes conventional structure for supplying the first water outlet passage of the head with pressurized water.

Abstract: A shower head, which can e.g. be the shower head of a hand shower, contains a jet discharge disk with two groups of jet outlets. The first group of jet outlets is continuously in operation and delivers an aerated jet. A second group of jet outlets can be switched in to said first group of jet outlets with the aid of a switching device.

Abstract: A gardening spraying nozzle comprises an outer annular cover installed at a water outlet of a spraying nozzle, a water outlet cover integrally formed with the outer annular cover, a water control disk within the water outlet cover, and an water outlet valve coupling to the water outlet of the spraying nozzle. The outer annular cover is integrally formed to the water outlet cover. The water outlet cover includes a mist-like spraying seal section and a low pressure water seal section; an annular end surface of the water control disk is formed with a sealing section corresponding to the low pressure water seal section of the water outlet cover. Thereby, the water outlet cover is buckled by the water control disk and the water control disk is buckled by the water outlet valve. Thereby, when the outer annular cover is rotated. It moves with the other element.

Abstract: There is provided a water-activating shower apparatus that emits activated hot or cold water without requiring a separate particular space where water is to be activated. An activated-water generating part filled with a large number of ceramic materials that radiate far-infrared rays is attached to the showerhead and/or to a pipe-connecting part upstream thereof. This water-activating shower apparatus activates the hot or cold water by far-infrared rays before the hot or cold water is emitted from the showerhead. The activated-water generating part is constituted (a) in an accommodation chamber that is formed in the showerhead, or (b) in an attachment member for attaching the showerhead.

Abstract: A needle foot assembly for a dispensing system includes a needle nut, a rotatable bearing, a friction brake, and an end piece holding the needle foot. The needle foot assembly attaches the needle to a dispensing head of the dispensing system. Rotation of the bearing alters the orientation of the needle foot and needle. The needle foot is removeably attached to the end piece and can be adjusted with respect to height.

Abstract: Apparatus for the electrostatic powder paint spray coating of substrates, such as automotive vehicles, is provided. The apparatus includes modular applicators which are mountable into a programmable, robotically controlled housing. The modular applicators are switchable into and out of an operational mode on command, to facilitate different optimal coating procedures for coating differing surfaces, ranging from large, open surfaces to smaller, highly irregular substrate surfaces. The applicator heads may be spatially switchable on command from, for example, a bell cup spray applicator to a spray gun applicator. Flow control to each applicator is preferably enhanced using selectable pneumatically controlled pinch valves.

Abstract: A liquid material dispensing system provides individually metered streams of liquid material to a nozzle or die tip which dispenses the liquid material in a closely spaced arrangement. In one embodiment, the dispensing system utilizes a series of gear pumps to induce the flow of liquid material through individual dispensing modules. An adapter intermediate the modules and the die tip directs the individually controlled streams from a spacing provided by the modules to a close arrangement, such as may be suitable for coating parallel strands of substrate material.

Abstract: A spraying device for a lawn sprinkler is equipped with a circular base mount, a coupling board, a rotary sprinkling cover, a central flexible control piece and a water sprinkling blade assembly wherein the center of the circular base mount is disposed a water outlet having a securing hole in registration with the downward protrusion of the coupling board. The thermal meltable ring on the coupling board is used to make the coupling board secured to the rotary sprinkling cover by way of ultrasonic melting art. The inner space of the rotary sprinkling cover is divided into an inner and outer sections. At the center of the rotary sprinkling cover is disposed a cavity for housing of the retaining part, a spring, a support member and a seal ring and a water outlet screen cap of the central flexible control piece.

Abstract: A multi-function showerhead filter system includes a ball-like swivel-mounted inlet joint having a fluid input to the housing, the inlet joint including a fluid input cavity converging, at a distal end, into a venturi outlet. The system also includes a pressure chamber formed within the housing, downstream of the venturi outlet and in fluid communication with it, the chamber having an inlet at least equal to a largest radius of the venturi outlet. The system also includes a turbulence-inducing water filter cartridge secured within the housing downstream of the pressure chamber and having an inlet surface in fluid and mechanical communication with it. The system further includes an output within the housing, secured downstream of the filter cartridge and in fluid communication with it, the output of which is passed through the cartridge, into one of the function modes of spraying, bubbling and massaging.

Abstract: A hose reel having a casing and a wheel coupled to the casing for winding up a hose, a holder block mounted on the wheel, the holder block having a hose connector for receiving water from a water source through a hose, and a sprinkler carried on the holder block and adapted to sprinkle water received from the hose connector of the holder block on flowers, lawns, etc.

Abstract: A converter threaded to the sprout of a classical faucet made of metal to compromise the classical style of the faucet allows water be delivered either in gush or divergence; a separation cover being provided to separate the heat generated from hot water flowing through the converter to avoid burning the user; and a reducing design for the rotation point of the rotation connector to avoid hurting the user.

Abstract: A nozzle assembly includes a plastic, one-piece flood tip that attaches directly over the bayonet connector of a nozzle body. The nozzle body is of the diaphragm type for reduced weight, cost and complexity but modified to increase flow capacity. In one embodiment, a 90-degree bayonet is provided on the nozzle body turret, and other bayonet selections are also available on the turret for flat fan spray patterns. In a second embodiment, a conventional radially extending bayonet pattern is provided, and the flood tip itself is fabricated with a 90-degree turn. The plumbing system utilized for high spray rate applications with the flood tip is the same as for lower rate spraying using a different tip mounted on other bayonet connector on the turret.

Abstract: The present invention provides a fluorescent layer forming apparatus for applying a fluorescent material paste into a recess defined between barrier ribs formed on a substrate for formation of a fluorescent layer in a plasma display panel production process. The apparatus comprises: a nozzle for ejecting the fluorescent material paste; and a plurality of fine attachments provided at one end of the nozzle with distal end portions thereof being arranged in convergent relation. The fluorescent material paste is ejected along the plurality of fine attachments thereby to be applied into the recess without formation of a clot. Thus, the fluorescent layer can accurately be formed in the intended recess between the barrier ribs without adhesion of the fluorescent material paste onto the top edges of the barrier ribs.

Abstract: An improved sprinkler includes a spray nozzle, an adjusting sleeve, a barrel set and a hose connector. The barrel set has a barrel to control water discharge of a first water outlet. The adjusting sleeve can control water discharge of a second water outlet. By controlling water discharge of the first and the second water outlets, water spraying may be adjusted according to plant requirements and conditions.

Abstract: A system for dispensing liquid material with different configurations of air assisted fiberization or filament movement (e.g., meltblowing, controlled fiberization). In particular, front access for mounting a selected nozzle only requires adjustment of one lever and one fastener. Features of the lever and nozzle allow assisted ejection of the nozzle, even when the nozzle has become adhered to a die body through use. In addition, a nozzle mounting surface of the die body provides a universal interface to the various types of nozzles. An air cavity in the die body and air troughs in selected types of nozzles balance and adjust air flow.

Abstract: The invention relates to portable dispensing means having a spray head (1) and a spray material storage canister (2), the spray head (1) and the canister being attachable to one another and also being subsequently detachable from one another, the dispensing means being formed such that when it is in use it can be sert so that spray material within the canister can move into the spray head and pass from the spray head to an atmosphere outside of the dispensing means in the form of a spray, the dispensing means being formed such that when it is in a normal in-use orientation and is activated the spray can proceed from the spray head in a substantially vertical or upward path of travel.

Abstract: A blast nozzle formed of a non-conductive material includes electrically conductive paths embedded therein to keep the build up of static electricity below an undesirable level. Stainless steel rods extend the length of the blast nozzle, providing a continuous electrical path.

Abstract: Automatic cleaning tool (3) for interior cleaning of numerically controlled machine tools for automatic insertion into the spindle or tool-holding fixtures (1), for cleaning by means of spindle movement with supply of a fluid.

Abstract: A dampening water spraying device includes:

Abstract: A system for dispensing liquid material with different configurations of air assisted fiberization or filament movement (e.g., meltblowing, controlled fiberization). In particular, front access for mounting a selected nozzle only requires adjustment of one lever and one fastener. Features of the lever and nozzle allow assisted ejection of the nozzle, even when the nozzle has become adhered to a die body through use. In addition, a nozzle mounting surface of the die body provides a universal interface to the various types of nozzles. An air cavity in the die body and air troughs in selected types of nozzles balance and adjust air flow.

Abstract: An atomizing spray nozzle structure comprising a main unit, a rotor and a spray nozzle, wherein the main unit and the spray nozzle are joined by thread tightening. Inside the main unit is an accommodating space. The spray nozzle has a through channel running along the axis thereof. The accommodating space is communicative with the through channel, having a rotor inside the through channel and the accommodating space, characterized in that: an end of the rotor corresponding to the accommodating space is a tapered end, and a neck is protruded from the tapered end, the length of the rotor is longer than the through channel at all circumstances, and the end with protruded neck exposed in the accommodating space of the main unit; thereby the rotor can be easily taken out for cleaning purpose after the main unit and the spray nozzle are disassembled.

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: 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 neblizer vial (10) for aerosol therapy comprises a tube (14) fed at a first end with compressed air, the tube (14) being constricted at its second end prior to the relative exit orifice (16) to obtain a venturi effect. The orifice (16) of the tube (14) emerges from the free surface of a solution (22) of an aerosol therapy medicament, a nozzle (18) being concentrically mounted on the second end of the tube (14) such that between the tube (14) and nozzle (18) there remains an interspace (20) communicating with the solution (22). A flow breaker device (26) is provided above the orifice (30) of the nozzle (18). The vial (10) is provided with an exit (34) for the formed aerosol and an inlet (24) for entry of external air as a result of suction exerted by the patient on the exit (34). For diameter parity of the orifice (30) of the nozzle (18), means are provided to vary the distance between the nozzle orifice (30) and the flow breaker device (26).

Abstract: A system for dispensing liquid material with different configurations of air assisted fiberization or filament movement (e.g., meltblowing, controlled fiberization). In particular, front access for mounting a selected nozzle only requires adjustment of one lever and one fastener. Features of the lever and nozzle allow assisted ejection of the nozzle, even when the nozzle has become adhered to a die body through use. In addition, a nozzle mounting surface of the die body provides a universal interface to the various types of nozzles. An air cavity in the die body and air troughs in selected types of nozzles balance and adjust air flow.

Abstract: A sink water spraying apparatus includes a sprayer housing having a channel extending between inlet and outlet ports. The housing includes a trigger for actuating water flow. A pulsation selector disc is rotatably coupled to the housing and defines a hole that may be selectively aligned with the outlet port. A pulsation assembly is connected to a shaft extending from the housing and may receive a water stream flowing through the pulsation selector disc. The pulsation assembly includes a rotor for repetitively disrupting this flow so as to make it pulsate. A pattern selector disc is releasably coupled to the pulsation selector disc and defines differently configured nozzle ports. The pattern selector disc may be rotated such that a water stream received from the pulsation assembly may be conveyed in a desired pattern. An auxiliary cleaning attachment may be releasably coupled to the pattern selector disc.