Abstract: A spray tip for discharging a controlled liquid spray distribution is provided. The spray tip includes a spray tip body having an inlet end for connection to a pressurized liquid supply. The spray tip body includes a first fluid chamber having a first longitudinal axis and a second fluid chamber in fluid communication with the first fluid chamber and having a second longitudinal axis that extends transversely relative to the first longitudinal axis. A pair of discharge orifices are formed in the spray tip body. Each discharge orifice has a downstream side with a deflector surface for directing liquid discharging from the chamber. Each discharge orifice intersects the second fluid chamber adjacent a respective end thereof so as to define a pocket extending downstream of the deflector surface.

Abstract: The present invention provides an attachment for emitting water from a water source. The attachment comprises an inlet end, a transitional section connected to the inlet end, an outlet end connected to the transitional section opposite from the inlet end, and a reinforcement member attached to the transitional sectional and the outlet end to support the transitional section. The inlet end includes an external cover and an internal sleeve disposed within and spaced from the external cover.

Abstract: A nozzle orifice of a nozzle (1) includes a tapered segment (16) extending from an elliptical discharge orifice (15) and having a taper angle ? of 30 to 80°, and a large-diameter segment (18) continuing with the tapered segment. The ratio of the inner diameter of large-diameter segment (18) relative to the minor diameter of the discharge orifice (15) is not less than 3 and less than 7. Also, the discharge how from the nozzle spreads in a single direction (width direction) within a plane perpendicular to the central axis of the nozzle and the erosion thickness angle is 1.5 to 3° in the direction (thickness direction), perpendicular to the width direction. Such a descaling nozzle enables that scale is removed efficiently at low pressure and/or low flow rate while restraining the cooling of a steel plate.

Abstract: A nozzle for spraying a fluid. The nozzle has in asymmetric orifice geometry. This asymmetric geometry provides a non-uniform flow pattern. This arrangement provides a heavier flow in one direction transverse to the primary flow direction of the nozzle and a lighter flow in a different direction transverse to the primary flow direction. The nozzle may be used with a floor cleaning device to provide a particularly desirable spray pattern on a surface to be cleaned.

Abstract: The invention relates to an accessory adapted to be mounted on the end of an outlet conduit (4) of an air blast device (1). The accessory is in the form of a tube having an inlet, an outlet and a central passage therethrough, the axial passage or tube being mounted coaxially to the axis of the outlet conduit. The tube has a cross-sectional area that first decreases in the direction (F) in which the air is discharged from the air blast device and a cross-sectional area that then increases in the direction F, thus forming a convergent segment (A) followed by a divergent segment (B). The air blast device is of the type having an evacuation control valve disposed between its inlet and outlet for controlling air flow contained in a chamber or reservoir.

Abstract: In certain embodiments, a method includes microblasting a spray tip of a spray device to refine spray characteristics of the spray tip. In other embodiments, a method includes outputting a substance from a microblasted output orifice of a spray device to create a spray having characteristics at least partially attributed to a microblast treatment of the microblasted output orifice; and applying the spray onto a surface of a product to create a coating having characteristics at least partially attributed to the microblast treatment.

Abstract: A sprinkler for fire suppression systems that produces an orthogonal spray pattern is disclosed. The sprinkler has an exit orifice with a non-round perimeter and a deflector plate having a non-round perimeter. The shape of the deflector plate perimeter may be matched to that of the exit orifice perimeter. Orifice perimeters may be square, rectangular, formed of lobes or interconnected curves, and there may be multiple orifices in the sprinkler.

Abstract: A micro-pump used for atomizing liquid is provided. The micro-pump includes a main-housing, a nozzle plate, and at least one actuator. The main-housing has a liquid inlet. The nozzle plate is assembled to the main-housing and has at least one nozzle. A first chamber is formed between the main-housing and the nozzle plate, and the nozzle and the liquid inlet are communicated with the first chamber. The actuator is disposed on the main-housing and/or the nozzle plate. The actuator drives the nozzle plate, so that liquid is filled into the first chamber and sprayed out through the nozzle. A micro-pump system can be formed by many micro-pumps.

Abstract: The present invention is directed to a device for splitting a propelled aerosol cloud. The device utilizes a curved spray chamber and a thermal technique to divert any desired portion of the aerosol to waste. The remainder of the aerosol is made available to an ELSD or similar instrument for analysis.

Abstract: A wide slit nozzle having a slit as a discharge opening. The thickness of a lateral end part is set smaller than the thickness at a lateral center part. The thickness of the lateral center part is fixed. The thickness of the lateral end part changes linearly from opposite lateral ends of the lateral center part to the opposite lateral ends of the slit. Coating material is discharged from the slit while applied with pressure, so that the coating material is coated while expanded wider than the width of the slit. The coating material is discharged at 7 liter per minute, and a coating width of a first example is 100 mm, for example. A thickness increase of the overlapped part is +25% even when a width or an overlapped margin z of the overlapped part is 10 mm or 20 mm.

Abstract: A liquid dispensing module and nozzle or die tip for discharging at least one liquid filament. The nozzle includes a wedge-shaped member having a pair of side surfaces converging to an apex. A liquid discharge passage extends along an axis through the wedge-shaped member and through the apex. The wedge-shaped member extends in a radially asymmetrical manner around the liquid discharge passage. Four air discharge passages are positioned at the base of the wedge-shaped member. At least one air discharge passage is positioned adjacent each of said side surfaces and each of the air discharge passages is angled in a compound manner generally toward the liquid discharge passage and offset from the axis of the liquid discharge passage.

Abstract: Devices for producing waterfalls, which provide a decorative effect in pools, spas, bathtubs, and sinks. The devices include a water inlet, and a water chamber connected to the water inlet. An elongated water outlet is connected to the water chamber, such that water exiting the water outlet forms a waterfall-type flow. In one arrangement, a light chamber including at least one lamp is included. The light chamber has a window which allows light generated by the lamp to shine through the water outlet. In another arrangement, the elongated water outlet is provided on an outlet insert, the insert and water chamber having complementary inclined surfaces such that the outlet insert may be positioned at varying distances from the water chamber. In a further arrangement, a plurality of pins are located at the egress of the water chamber, the pins acting as baffles to the flow of water through the device.

Abstract: The invention concerns an insulating nozzle for a gas blast circuit breaker. In accordance with the invention, the material constituting the nozzle comprises (A) 90% to 99.9% by weight of a fluorinated polymer, and (B) 0.1% to 10% by weight of a filler based on at least one oxide selected from (B1) SiO2 and other oxidized forms of metals from column IVA of the periodic table, and (B2) ZnO, CdO and other oxidized forms of metals from column IIB of the periodic table.

Abstract: A window-washer sprayer is configured to provide an orientable jet by substitution of a cylindrical nipple installed within a seat of an enbloc sprayer body. The sprayer body defines the seat, an internal duct for passage of a detergent fluid, and a side window made in a position corresponding to the seat and partially occupied in use by the cylindrical nipple. The internal duct, the seat, and the nipple have a geometry such that when a flow of detergent fluid is fed into the internal duct it splits by fluid-dynamic effect into a number of separate flows that simultaneously reach the seat and are expelled through a through radial slit or a plurality of through radial holes selectively made in the cylindrical nipple in a position corresponding to the side window of the sprayer body.

Abstract: A nozzle having a housing and an assembly including at least two conjugated parts separated by a spacer seal. The assembly is arranged in the housing so as to form a nozzle outlet. At least one of he housing, the parts, and the spacer seal are deformable so as to define a geometry of the nozzle outlet and seal surfaces between the parts and the spacer seal and between the parts and the housing.

Abstract: A device suitable for atomization and injection of a hydrocarbon batch into a reaction chamber comprises an admission and mixing chamber (5) for the liquid hydrocarbon batch introduced into the device by a tube (8) and for an atomization gas introduced into the device by a cylindrical casing (9) containing tube (8). Casing (9) is extended by a Venturi tube (6) which has a convergent part connected upstream to cylindrical casing (9) and a divergent part connected downstream to a hemispheric tip (7) that leads, by a rectangular slit with an opening angle (16) between about 100 and 115 degrees, to the reaction chamber. The device can be used in processes for catalytic cracking of heavy hydrocarbons.

Abstract: A spray nozzle system includes a spray tip having an elongated slot-shaped discharge opening for defining a flat fan spray pattern that subtends a wide angle, a cap body carrying the spray tip in fixed relation thereto and adapted to attach the spray tip to a supply fitting for tapping a supply of material to be sprayed in fixed aligned relation thereto and a flow regulating insert carried in the spray tip for connecting the spray tip to the supply of material to be sprayed and for controlling the amount of flow through the nozzle.

Abstract: A fluid injection nozzle has an injection port plate, an injection port and a protruding portion. The injection port plate is to be mounted on a downstream end of a fluid injection valve so that a center axis thereof is coaxial to the fluid injection valve. The injection port penetrates the injection port plate between an inlet and an outlet. The protruding portion protrudes from an inner surface of the injection port to shift a direction of at least a part of a fluid flow passing through the injection port to flow in a circumferential direction of the inner surface.

Abstract: A cold gas spraying method and device, whereby the sprayed particles are accelerated in a gas flow. A powder tube and an outer nozzle body together form a Laval nozzle that produces high gas flow velocities. The injection of the sprayed particles occurs in the divergent section of the Laval nozzle.

Abstract: A fuel injector nozzle assembly includes an injector body including a valve seat with a supply passage through which fuel flows generally along a supply axis. The valve seat presents an upper surface which is adapted to engage a valve to seal the supply passage. A nozzle plate is mounted onto the valve seat and includes a plurality of orifice holes therein through which fuel flows. The valve seat further includes a first edge protrusion protruding into the fuel flow for generating a first separation of the fuel flow, thereby creating a plurality of small eddies which are entrained within the fuel flowing adjacent thereto. A turbulence cavity is defined by the nozzle plate and the valve seat wherein fuel flows into the turbulence cavity through the supply passage and out from the turbulence cavity through the plurality of orifice holes.

Abstract: An atomization chamber apparatus used for aircraft pesticide delivery, which has an open ended walled chamber, divided into left and right sections, each having outer and inner segments, each segment having a top and a bottom wall, the outer segments having a same radius concave upper wall and a convex lower wall, while the inner segments have a same radius convex radius upper wall and a concave lower wall. A nozzle injector connectable to a fluid pesticide source is laterally disposed in an inner segment. The nozzle is chosen such that exiting pesticide will not impact the chamber walls, and the radii of the segments are chosen such that the speed of pesticide atomization by the incoming air is slowed down to reduce fines upon pesticide impact, and the speed of the pesticide air mixture on exiting the chamber is increased to substantially match the airspeed of the aircraft.

Abstract: A protective shield for protecting a feed nozzle encloses, not only the circumference of the feed nozzle, but also encloses and protects the end of the feed nozzle. The protective shield includes an open portion in its end which corresponds to, and surrounds the slit in the end of the feed nozzle. Optimal shape of the open portion is determined by spray visualization tests.

Abstract: The invention is directed to an immersion nozzle for a metallurgic vessel arranged upstream of a casting device, in particular a continuous casting mold or a twin roller, in which a slit-shaped pour-out opening (2) having a length that is several times greater than its width is provided in the base area. The cross section widens in the direction of its mouth from a round inlet cross section to a mouth cross section whose one semiaxis is smaller than, and whose other semiaxis extending perpendicular thereto is greater than, the semiaxis of the round inlet cross section and whose base shape corresponds to that of the body of revolution of an ellipse or of an oval mouth cross section around the greater semiaxis, and the slit-shaped outlet opening extends in direction of the greater semiaxis.

Abstract: A nozzle device for ejecting a liquid onto vehicle windows or headlight lenses. At least one rotation chamber is formed inside a nozzle body. The liquid enters the chamber, is rotationally displaced in such a way that it is then ejected as a homogeneous fan jet via at least one slit-like nozzle opening.

Abstract: A showerhead as described herein includes a translucent hollow body having a fluid chamber, and a fluid distribution element configured to release fluid contained in the fluid chamber. The fluid distribution element includes a plurality of raised concentric rings having peaks that serve as the fluid release points. The fluid distribution element contains a number of fluid ducts that are specifically shaped to transport the fluid from the fluid chamber toward the fluid release points. The translucent nature of the showerhead creates an optical lens effect that illuminates the showerhead and the water droplets formed by the showerhead. The illumination of the water droplets creates a pleasant showering experience for the user.

Abstract: A spraying system is provided including a spray gun and a spray nozzle. The spray gun has a discharge end. A locating pin is arranged on the discharge end of the spray gun. The spray nozzle is selectively mountable on the discharge end of the spray gun. The spray nozzle has a discharge orifice configured to produce a asymmetrically distributed fluid discharge pattern wherein the location of maximum fluid discharge is offset from the center of the fluid discharge pattern. The spray nozzle has an alignment notch extending along an outer surface of the spray nozzle. The locating pin is arranged on the spray gun and the alignment notch is arranged on the spray nozzle such that when the spray nozzle is mounted on the discharge end of the spray gun in a predetermined orientation the locating pin extends into the alignment slot.

Abstract: A nozzle and the method for manufacturing thereof are disclosed. The manufacturing method includes the following steps: 1. forming a base with a closure and a supporting frame with two corresponding shafts on the top thereof via extruded hard plastic; 2. inserting a central mold into the supporting frame such that the shafts on the top of the supporting frame may be slightly outward; 3. secondly applying extruded plastic on the top of the supporting frame to form a mouthpiece; and 4. thirdly applying extruded plastic on the bottom of the supporting frame to accomplish a nozzle with excellent touch feeling and firm structure. By way of the above steps, the nozzle according to the present invention presents a soft touch feeling and would not easily fall off of the conduit of the water bag due to the sucking of the user.

Abstract: The present invention relates to a portable device for spraying a liquid at low pressure, said device comprising a spray arm (220), and characterized in that the spray arm comprises at least one flat fan spray nozzle (230). Preferably, the liquid is a cleaning composition for treatment of carpets and other large fabric coverings, more preferably, a composition comprising surfactants. Also preferably, the portable device is electrically driven, and/or the spray arm is extendible and/or detachable from the device's main unit.

Abstract: A fuel injection valve for internal combustion engines, has a valve body with a pressure chamber that can be filled with fuel under pressure. Embodied in the valve body is at least one injection conduit, which originates at the wall of the pressure chamber, where it forms an injection opening; the injection conduit connects the pressure chamber with the combustion chamber of the engine. By means of a valve needle, the injection opening can be closed or opened. The injection opening of the injection conduit has a cross section in the form of an oblong slot, so that the injection of the fuel into the combustion chamber is optimized.

Abstract: Embodiments of the present invention are directed to a dispensing nozzle for dispensing a sauce containing particulates which is configured to reduce clogging of the nozzle by the particulates. In one embodiment, a dispensing nozzle comprises a nozzle body having a nozzle cavity with a nozzle inlet and a nozzle outlet. The nozzle inlet has a bore-shape cross section. The nozzle outlet is longitudinal in shape with a length substantially larger than a width. The nozzle cavity extends from the nozzle inlet to the nozzle outlet in a flow direction and has a cross-sectional area which is substantially constant extending from the nozzle inlet along the flow direction to the nozzle outlet.

Abstract: Cleaning device having an endless filtering belt (31) guided through a waste water container (33) for filtering of waste water. The filtering belt is guided over a series turn rollers (32, 34, 36, 37) so that the belt in a certain region runs substantially horizontally with the filtrate faced downwards. Within this region there is a rod shaped blowoff device (43) for blowing air towards the filtering belt. Below the blowoff device (44) there is arranged a screw conveyor (42) for removing residues dislodged from the filter mesh. The filtering belt (31) is located adjacent to a transmission belt (51) and is pressed against the same by a clamping rail (58) within the rising section (38) of the filtering belt. The device is provided with a control device (4) adapting the filtering belt movement with the waste water supply, thus keeping the waste water surface below a certain level to provide a high degree of dewatering within the upwards rising section of the filtering belt (31).

Abstract: This invention is a variable orifice for controlling the mass flow rate of nitrous oxide used as an engine oxidizer, this orifice having an effective size, or area, which changes with changes in the nitrous oxide pressure applied to it. Several design parameters can be changed to provide the desired effective orifice area as a function of pressure. This variable orifice can be designed to maintain an essentially constant nitrous oxide delivery rate over a wide range of nitrous oxide pressures.

Abstract: An orifice holding spring disk. The spring disk is utilized to retain orifice(s) against a smooth flat platen surface. The spring disk may further comprise an inlet flow conditioning nozzle, provided in (a) a flow collimating configuration to produce a coherent flow waterjet, or (b) in a de-collimating configuration to produce a divergent waterjet. The spring disk has an annular outer ring, one or more through-holes, and counterbores to form wells in the spring disk. The wells are slightly larger in diameter than the particular orifice to be mounted and slightly shallower (in the water flow direction) than the thickness of the orifice. A nozzle cap compresses the platen and spring disc against a high pressure inlet tube. The outer diameter of the spring disk is forced to flex to the cap surface while the center portion is restrained by the orifice that is resting on the platen.

Abstract: The present invention relates to a very high solid content contact adhesive (VHS) which has a higher solid content than previously thought attainable in the prior art without increasing the viscosity beyond operable levels. Additionally, the present invention provides a VHS application device which allows substantially more uniform application of the VHS than was previously attainable.

Abstract: A spray nozzle for directing a wide lateral spray curtain with substantially uniform liquid distribution throughout the length of the spray curtain is provided. The nozzle includes a nozzle body defining an elongated internal flow passage. The nozzle body includes an inlet end for connection to a pressurized liquid supply, a downstream end wall and a side wall. A discharge orifice is provided in the side wall of the nozzle body between the inlet end and the downstream end wall. The discharge orifice communicates with the internal flow passage of the nozzle body. The discharge orifice has a generally inverted teardrop configuration comprising a relatively larger area upper portion and a relatively smaller area lower portion arranged below the upper portion.

Abstract: A personal product comprising a liquid cosmetic composition and a hand-held electrostatic spraying device suitable for applying the composition to the human body, said hand-held electrostatic spraying device comprising a slit nozzle having a maximum width of from 0.05 mm to 0.5 mm, means for containing the liquid cosmetic composition, means for supplying the liquid cosmetic composition to the nozzle, an electricity source, high voltage circuitry arranged so that, in use, liquid cosmetic composition sprayed in atomised form from the nozzle is electrically charged, and control means for selectively applying a high voltage.

Abstract: A disposable nozzle for an airless, polyurethane spray gun has an inlet chamber section sealingly latched to the gun nose for receiving polyurethane foam components, a mixing chamber section adjacent the inlet chamber containing a static mixer for mixing the polyurethane components and a dispensing tip section adjacent the mixing chamber for discharging the polyurethane as a spray. The dispensing tip has a longitudinally extending passage terminating at a rectangular opening in the tip defined by long side edges and short side edges. The length of the long side edges are generally maintained throughout the tip passage and approximate the diameter of the mixing chamber exit to produce a consistent rectangular fan spray pattern from the nozzle. Spray guide tabs extend from the long side edges of the rectangular tip opening to alleviate nozzle drip during dispensing.

Abstract: An external mix air atomizing spray nozzle assembly having a nozzle body formed with liquid and air passages, a spray tip at a downstream end of the nozzle body having a nose portion that defines a liquid discharge orifice, and an air cap mounted in surrounding relation to the spray tip nose portion. The air cap defines an annular pressurized air orifice about the spray tip nose portion and a plurality of angled air passages disposed radially outwardly thereof. Pursuant to the invention, the spray tip nose portion has a frustoconical end tapering inwardly in a downstream direction which enhances air entrainment and minimizes liquid turbulence in a zone immediately in front of the air cap and around the spray tip nose portion to prevent undesirable build up of spray material on the exposed end surfaces of the spray tip nose portion and air cap.

Abstract: A spray nozzle for producing an asymmetrically distributed fluid discharge pattern such as for use in a container coating application is provided. The spray nozzles includes a body portion having an internal fluid passageway which terminates in a substantially hemispherical dome shaped end wall. A discharge orifice is provided in the end wall which is produced by superimposing on each other an approximately round opening and an elongated opening having opposed rounded ends. The round opening and the elongated opening defining respective edges of the discharge orifice which extend at different angles relative to a longitudinal axis of the fluid passageway. The resulting orifice produces a fluid discharge pattern wherein the amount of fluid discharged tapers in a continuous, non-linear manner from the location of maximum discharge to points of minimum flow at either end of the discharge pattern.

Abstract: The invention relates to a nozzle for the projection on to an object of a fluid such as a gaseous flow containing solid particles, comprising a body 1 through which there passes a longitudinal tubular passage, one end of which constitutes an inlet 2 that has to be connected to the intake of a fluid supply conduit and the other end of which constitutes an outlet 3 for the fluid that has passed through the nozzle.

Abstract: The invention relates to an improved design for a spray gun and application system for cold gas dynamic spraying of a metal, alloy, polymer, or mechanical mixtures thereof. The gun includes a rear housing comprising a powder inlet and a gas inlet, a front housing removably affixed to the rear housing and comprising an mixing cavity therein for mixing of the powder and gas and an exit therefrom, a nozzle holder having a bore disposed therethrough and removably affixed to the front housing, and a nozzle positioned within the nozzle holder, an interior taper of the nozzle holder bore complementing an exterior taper of the nozzle, said nozzle having an initially converging, subsequently diverging centrally disposed bore therein adapted to receive the mixed powder and gas from the mixing chamber.

Abstract: A two-medium spraying nozzle is provided with a mixing chamber arranged in a housing and with one connection duct respectively leading into this mixing chamber for the feeding of a gaseous and of a liquid medium. A mouthpiece is connected behind the mixing chamber, in which mouthpiece a rotationally symmetrical central outlet opening is provided. In the bore of the mouthpiece, a swirl insert is arranged, and the outlet opening has a diameter which corresponds to no more than half the diameter of the bore of the mouthpiece. Such a two-medium spraying nozzle is unsusceptible to clogging and is particularly suitable for atomizing low-viscosity fluids for the cooling of continuous-casting systems for the production of steel.

Abstract: Nozzle attached to the boom of agricultural sprayers each include an improved air eduction system and discharge slot eliminating the need to change the angle of the boom and nozzle to ensure a comprehensive spray pattern irrespective of boom height and improved penetration of the material sprayed into and under the crop canopy.

Abstract: A nozzle for transferring a flow of liquid metal between metallurgical vessels or molds comprising an entry portion for receiving the liquid metal. A flow regulator, such as a stopper rod, is movable from an open position to a closed position with respect to the entry portion for respectively permitting and prohibiting flow through the nozzle. The entry portion and the flow regulator define a control zone therebetween. A pressure modulator, downstream of the control zone, is adapted to minimize a pressure differential across the control zone. The pressure modulator constricts flow downstream of the control zone.

Abstract: A coating material supply nozzle has a coating material reservoir where a coating material fed from the outside into a nozzle body, and an elongated nozzle port, from which the coating material passed through a nozzle passage is discharged. A coating material feed pipe for feeding the coating material is mounted in the coating material supply nozzle to extend in said coating material reservoir over the entire length. The coating material feed pipe is provided with at least one coating material feed bore for guiding the coating material within the coating material feed pipe into the coating material reservoir uniformly in a lengthwise direction of the coating material reservoir.

Abstract: The guide member (1) for a liquid jet (30) to be deflected allows a liquid (3) after flowing out of a container (2) to be deflected onto a target (5; 7) which is located below the container. The deflecting takes place by means of a shaped material plate (10; 10a, 10b) which is arranged ahead of an outlet opening (20) of the container and which reshapes and further conducts the jet (30) in such a manner that the liquid is conveyed to the target at a lower end (17) of the shaped material plate. At the location ahead of the outlet opening (20), where the liquid jet (30) is incident onto the shaped material plate (10), a first and a second piece of surface (11 and 12 respectively) of the material plate form a mouth region (13) in which the first piece of surface (11) deflects the liquid (3) transversely with respect to the vertical, whereas the second piece of surface (12) is provided as a catcher for squirts. The first piece of surface merges into a channel (14) in which the liquid is guided downwards.

Abstract: A slit nozzle includes a solution feeding mechanism having an elastic element and a plurality of piezoelectric devices and embedded in a side surface of a flow passage near a slit in the slit nozzle. Control is effected so that the piezoelectric devices are vibrated to cause the elastic element to produce traveling waves toward the slit. A resist solution serving as a processing solution is pumped by the traveling waves, thereby to be discharged through the slit toward a substrate. This provides a substrate processing apparatus capable of smoothly discharging the processing solution to accomplish high discharge accuracy.

Abstract: At a time of forming lip portions 9e, 9f in upper and lower edge portions of an injection port 9d in a protruding manner, a nozzle for injecting a washer fluid of a washer fluid injection apparatus in a diffusion manner is structured such that a step surface 9i is formed on an inner side surface 9h such that protruding amounts of the lip portions 9e, 9f are set to the same size, a protruding tip portion in a washer fluid injection side of the lower lip portion 9f is positioned in a lower side than a lower side edge portion of the injection port 9d. Accordingly, it is possible to make the injected washer fluid hard to be affected by an air flow during traveling.

Abstract: The present invention relates to a nozzle intended for the application of fluid materials, which at a front end thereof has an aperture opening into a slot. A central portion of the slot is functioning to release most of the material straight ahead. Furthermore, the slot has side portions functioning to release material in sideway directions. In a preferred embodiment, the front end is shaped like a truncated cone with a flat top, in which the slot is formed. The slot is thus divided into three straight portions with the central portion in the flat top and the angle of the side portions defined by the top angle of said cone. Under certain conditions, the jets of material released from the various portions are held together by a surface tension. As most of the material is released from the central portion, the jets from the angled side portions will be deflected towards the center jet, resulting in a jet with a relatively even width, and a resultant coating being thickest in the middle.

Abstract: A wide slit nozzle having a slit as a discharge opening for a coating material is provided. The slit has a first thickness at a lateral center part and a second thickness at opposite lateral end parts. The second thickness of the lateral end part is set smaller than the first thickness at the lateral center part. The first thickness of the lateral center part is fixed. The second thickness of the lateral end part changes linearly from opposite lateral ends of the lateral center part to the opposite lateral ends of the slit. For example, the slit has dimensions: x=15 mm, y=14 mm, a &agr;=0.3 mm and &bgr;=0.6 mm. Consequently, an entire length or an entire width of the slit 2 is 15+14×2=43 mm. However, the coating material is discharged from the slit while applied with pressure, so that the coating material is coated while expanded wider than the width of the slit.