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 drip irrigation hose includes a plurality of emitter elements secured to a tube at longitudinally-spaced locations to define, with an inner surface of the tube, a plurality of labyrinths each having an inlet in communication with the interior of the tube, and an outlet in communication with a tube outlet for discharging water from the tube outlet at a slow rate. The labyrinths are defined by a continuous strip of a relatively inelastic material bonded to the inner surface of the tube, and a formation of a relatively elastic material shaped to define at least the tips of a group of teeth for each of the emitter elements producing, with the inner surface of the tube a turbulent flow passageway at each of the longitudinally spaced locations along the length of the tube.

Abstract: A fuel injector provided with an injection valve comprising a mobile plunger; an injection jet having a plurality of first through-holes made starting from a chamber arranged downstream from the injection valve; a supporting body having a tubular shape and comprising a supply channel; and a sealing body, in which a valve seat of the injection valve is defined and the injection jet is provided; the sealing body is monolithic and has a disc-shaped plug member passed through by the injection jet, and a guide member, which rises up from the plug member, is tubular in shape, receives within it the plunger and has an external diameter smaller than the internal diameter of the supply channel, so as to define an external annular channel for the fuel; in the lower part of the guide member there are provided a number of second through-holes which open into the valve seat.

Abstract: An apparatus for posttreatment of exhaust gases of an internal combustion engine, using a reducing agent to be introduced into the exhaust gases, in particular a urea or a urea-and-water solution, having an improved mixing chamber into which stored reducing agent, via a reducing agent line, and compressed air via a compressed air line can be introduced to create a reducing agent-air mixture, and means for preventing a reverse flow of reducing agent or reducing agent-air mixture from the mixing chamber into the compressed air line are provided which have a spring-loaded sealing hose. This arrangement assures secure sealing off of an attachable compressed air system from the corrosive reducing agent.

Abstract: A fuel injector for fuel injection systems of internal combustion engines having a magnetic coil, a valve needle, which is in operative connection with the magnetic coil and acted upon in a closing direction by a restoring spring to actuate a valve-closure member, which, together with a valve-seat surface formed at a valve-seat member, forms a sealing seat; and having at least one spray-discharge orifice which is formed in the valve-seat member. The spray-discharge orifices discharge from elevations which project beyond an outer end face of the valve-seat member, the fuel being guided through flow channels in the elevations.

Abstract: A fuel injector having an orifice plate proximate the outlet. The orifice plate has first and second plate surfaces spaced at a predetermined distance from one another and an orifice, the orifice extending along a longitudinal axis and includes a first surface and a second surface being spaced from the first surface. The first surface includes a first region having a first surface characteristic being oriented in a first direction oblique to the longitudinal axis. The second surface includes a second region having second surface characteristic being oriented in a second direction oblique to longitudinal axis. The fuel injector has a housing extending a longitudinal axis. The housing includes an inlet, an outlet and a passageway disposed between the inlet and the outlet.

Abstract: A shower head having a plurality of nozzles, with the exterior finish of both the shower head housing and the nozzles being consistent. For example, both the shower head and the nozzles may have either a chrome or a brass exterior finish. The nozzles of the shower head of the present invention each include a nozzle insert positioned therein, with the nozzle insert having a flexible nozzle tip protruding from the nozzle. Each nozzle insert includes an passageway in fluid communication with the water inlet of the shower head whereby water introduced into the shower head is ejected from the shower head through the passageway in the nozzle insert. The flexibility of the nozzle tip provides a convenient mechanism for eliminating build-up of, e.g., calcium or other deposits by manually flexing the nozzle tip.

Abstract: A fuel injection valve for internal combustion engines has a valve body in which a pistonlike valve member is longitudinally displaceably disposed in a bore. The valve member is surrounded, over at least part of its length, by a pressure chamber that can be filled with fuel. On its end toward the combustion chamber, a valve seat is embodied in the bore, on which seat the valve member comes to rest with a valve sealing face in a closing position, so that the pressure chamber is disconnected from at least one injection opening located downstream of the valve sealing face. First and second parallel annular grooves are formed in the end region of the valve member disposed axially toward the valve seat and the valve sealing face is disposed between these two annular grooves.

Abstract: A shower head having a plurality of nozzles, with the exterior finish of both the shower head housing and the nozzles being consistent. For example, both the shower head and the nozzles may have either a chrome or a brass exterior finish. The nozzles of the shower head of the present invention each include a nozzle insert positioned therein, with the nozzle insert having a flexible nozzle tip protruding from the nozzle. Each nozzle insert includes an passageway in fluid communication with the water inlet of the shower head whereby water introduced into the shower head is ejected from the shower head through the passageway in the nozzle insert. The flexibility of the nozzle tip provides a convenient mechanism for eliminating build-up of, e.g., calcium or other deposits by manually flexing the nozzle tip.

Abstract: A gas spray valve permits easy recharging of gas containers after use. The gas spray valve is of considerable strength and rigidity and can be manufactured in a less costly manner. One of the openings of a gas conduit of a valve pin is positioned so that, when the pin is in the raised position, the opening is positioned above a second seal ring and, when the valve pin is pushed into a first stop position, the opening is positioned below the second seal ring. A gas supply passage is provided that connects the interior of a gas container with a metering chamber on the inside of a first seal ring only when the valve pin is in the raised position. When the valve pin is in the raised position. When the valve pin is pushed into a second stop position, the opening of the gas conduit is positioned below the first seal ring so that the interior of the gas container communicates with the gas conduit. This permits recharging of the gas container with the gas.

Abstract: A fuel injector, in particular for a high-pressure injector for direct injection of fuel into a combustion chamber of an internal combustion engine, has compression of a fuel/air mixture with spark ignition. On the downstream end of the valve a valve seat element is provided, to which a perforated disk acting as a flow restrictor is connected downstream. A swirl element is situated upstream from the valve seat which imparts an atomization-promoting rotational motion to the fuel to be injected. In the valve seat element downstream from the valve seat, an elongated outlet orifice is provided which opens directly into an orifice in the perforated disk attached to the valve seat element. The width of the outlet orifice is greater than the width of the orifice in the perforated disk, at least at its narrowest location, so that it is possible to adjust the steady-state flow rate of the valve at the orifice.

Abstract: A fuel injector, in particular a fuel injector for fuel injection systems of internal combustion engines, has a piezoelectric or magnetostrictive actuator, a valve closing element that can be actuated by the actuator and that works together with a valve seat face to form a seal seat, and a temperature compensation device. The temperature compensation device has a housing that is elastically deformable along a direction of actuation of the actuator, and has at least one throttle that connects an interior space of the housing with a fuel inlet of the fuel injector. The cross-section of this throttle is dimensioned such that an entry and exit of fuel into the housing of the temperature compensation device is enabled when there is a temperature-caused change in length of components of the fuel injector.

Abstract: A dripper apparatus for a water spigot includes a coupler having a threaded female member for connecting to a water spigot. A generally cylindrical elongate member has a longitudinal portion in fluid communication with the female member. The longitudinal portion has an upper portion that defines a seat within the female member. A flow controller sits on the seat. A filter screen upstream the flow controller collects particles in water flowing therethrough so that the controller does not become clogged. The flow controller includes a housing that is provided with an upper inlet for receiving a first flow rate of water from a water spigot. The housing also includes a cavity therewithin and the cavity is in fluid contact with the upper inlet. A flexible membrane is housed within the cavity and floats when water enters the cavity via the upper inlet. The upper inlet is slotted at the top thereof for further filtering water flowing therethrough.

Abstract: A fuel injector is described, in particular an injector for fuel injection systems in internal combustion engines, that includes a valve needle having a valve-closure member which cooperates with a valve-seat surface arranged in valve-seat member to form a sealing seat and which has several injection orifices which are arranged downstream from the sealing seat, and are sealed by sealing seat against a fuel supply. A disk element is arranged downstream from the sealing seat, the disk element having at least one valve section, which changes its shape when the temperature changes. Valve section is connected to a heating element and optionally covers an injection orifice.

Abstract: A fuel injector, e.g., an injector for fuel injection devices in internal combustion engines, has a valve needle with a valve-closure member which cooperates with a valve seat surface in a valve seat body to form a sealing seat, in which the valve seat body has a plurality of injection orifices that are isolated from the fuel supply by sealing seat. The valve-closure member has a pressure element in a recess facing the valve seat body, which is pre-tensioned against the valve seat body by a spring which is supported on the valve-closure member and presses a disc spring against the valve seat body, in such manner that the disc spring covers at least one of the injection orifices, and the spring element uncovers this injection orifice when the tension exerted by the pressure element is removed.

Abstract: A fuel injector for fuel injection systems in internal combustion engines, including an actuator, a valve needle operable by the actuator for operating a valve-closure member, which, together with a valve-seat surface forms a sealing seat and a swirl device including at least one swirl channel, through which fuel flows with a tangential component relative to a longitudinal axis of the fuel injector. The axial position of a plunger element determines a cross-section of at least one bypass channel that bypasses the at least one swirl channel without a tangential component.

Abstract: A nozzle, especially an atomizing nozzle for an oil burner, has a housing with a nozzle opening, and a distributing insert which from the interior of the housing lies on the housing in the area of the nozzle opening and is held in the housing with the help of a deformed housing section. To better assure the functioning of the nozzle an elastically deformable element is arranged between the housing section and the distributing insert.

Abstract: An implantable fluid-dispensing device having an improved fluid-retainment portion is disclosed as having a housing having a first end and a second end, wherein at least a portion of one of the first end and second end comprises an expandable material, and a thermally activated component associated with the elastic material within the housing wherein the thermally activated component prevents unwanted fluid flow when the housing is exposed to a temperature increase. The thermally activated component can be a shaped single or bimaterial member that expands upon exposure to a temperature increase, or a valve apparatus that halts fluid delivery. Additionally, the entire device can be made from a thermally activated material such that fluid expansion is accommodated. A method for the prevention of the inadvertent release of fluid from a fluid delivery device that is exposed to a temperature increase is also disclosed.

Abstract: A shower head assembly includes a shade, a water outlet seat, a water outlet disk, a locking disk, a water outlet panel, a mounting tube, a connecting head, and a locking nut. Thus, the water outlet seat and the water outlet disk form a smaller water chamber, thereby reducing the bearing weight of the water outlet disk, the locking disk and the water outlet panel. In addition, the water outlet seat, the water outlet disk, the locking disk and the water outlet panel are combined rigidly and stably without detachment.

Abstract: A pressure compensated drip irrigation hose (20) includes a hose having a wall (21) with an inner surface (21a). A continuous elastomeric strip member (30) is connected to the inner surface (21a). The continuous elastomeric strip member (30) and inner surface (21a) form a plurality of emitters. The emitters have an inlet section (40), a pressure reducing section (60) which is downstream from the inlet section (40). A pressure responsive section (70) is downstream from the pressure reducing section (60) and the outlet section (80) is downstream from the pressure responsive section (70). The continuous elastomeric strip member (30) is constructed from a material softer than the wall (21).

Abstract: A spray head (1) for spraying fluid through a spray orifice (7), the head being provided with an expulsion channel (5), and with a closure member disposed in fixed manner in the expulsion channel (5), upstream from the spray orifice (7), the closure member comprising a closure element (9) which, at rest, closes off the spray orifice (7), and an elastically-deformable portion (10) supporting the closure element (9) for opening the spray orifice (7), the spray head (1) further being provided with a spray profile, the spray head being characterized in that the spray profile is formed on the closure member.

Abstract: An improved bite valve for use in personal hydration devices and other water dispensing systems. The valve has a flexible conduit sealed at an end by a cap. Fluid is blocked from flowing out of the conduit by the cap. The cap provides a fluid seal as a ring around an exterior surface of the conduit. Biting an end of the conduit, near the cap, radially separates the conduit from the cap, permitting fluid to flow into a person's mouth. The configuration of the valve permits a larger valve opening, and correspondingly improved fluid flow through the valve. A positive stop mechanism, to prevent undesired fluid flow, may also be provided in a valve.

Abstract: A water jet deliver disk in kitchen sprayer, comprising a first element, made of a rigid material such as plastic, and constituted by a peripheral body fixable to the sprayer body, by a hub adapted to convey a central jet, and by cross-members connecting the peripheral body and the hub in a monolithic structure and arranged to provide water passage openings, and a second annular element, made of an elastic material and associated with the first element to embed the cross-members in the region between the peripheral body and the hub, and comprising holes for water passage which are arranged at the passage openings formed by the cross-members to provide jet.

Abstract: A humidifier for providing moisture to an airstream comprises a pipe having a first end for connecting to a source of steam and a closed second end; first and second slots disposed opposite each other and longitudinally along a major portion of the length of the pipe; and a plurality of members sandwiched within the first and second slots, the members being disposed toward the interior of the pipe to guide condensate into the interior of the pipe.

Abstract: A fuel injection valve for internal combustion engines, having a valve body a bore in which a valve member is disposed to be axially movable counter to a closing force. On its end, the valve member has a substantially conical valve member tip, which with a part of its jacket face that serves as a valve sealing face comes to rest on a valve seat, embodied on the end toward the combustion chamber of the bore. At the transition from the valve member to the valve member tip, an annular groove undercuts the valve sealing face in part and thereby forms an annular collar, which is resiliently yielding. The cone angle of the valve sealing face, in the open position of the valve member, is somewhat larger than the cone angle of the valve seat, so that in the closing motion of the valve member toward the valve seat, the annular collar is first seated with the outer sealing edge and is deformed inward by the further closing motion.

Abstract: A dispensing nozzle for dispensing fluids, particularly anaerobic adhesives/sealants, in an automated dispensing system, the nozzle (2) having a hollow body with an entry port (3) and an exit port (4), the body having a wall with an internal wall surface which defines an elongate conduit arranged about a longitudinal axis of the nozzle, and linking the entry port to the exit port, wherein at the exit port the internal wall surface alternates in distance from the axis (6) of the nozzle between axis proximate positions (9) and axis distal positions (10), thereby forming a dispensing opening (7) in the exit port of non-circular cross sectional area. The wall is flexible radially outwardly in the regions of the axis proximate positions.

Abstract: A humidifier for providing moisture to an airstream comprises a pipe having a first end for connecting to a source of steam and a closed second end; first and second slots disposed opposite each other and longitudinally along a major portion of the length of the pipe; and a plurality of members sandwiched within the first and second slots, the members being disposed toward the interior of the pipe to guide condensate into the interior of the pipe.

Abstract: A unitary over-molded non-clogging system having mechanical breakup capability, a positive shutoff flared wall skirt, having two different overmolded materials forming a laminate combination. The soft flexible face inner portion with a flexible positive shutoff in combination, with mating sealing surface points at two distinct positions, on a conventional actuator body post, forms half of the unitary fitment. A hard portion contour forms the outer half, maintaining registration and retention of the entire overmold fitment within the actuator. This overmold combination fit provides these features without increasing the total amount of parts normally used in conventional spray actuators on pumps and aerosol systems. The actuator can employ a post with or without a mechanical breakup face while the mating surface of the inner soft interfacing portion would compliment it. This type of actuator also can be used as an outlet valve means for pumps, reducing overall cost.

Abstract: A quantitative discharge apparatus for powder material, comprising: a tubular body for storing powder material; and an elastic membrane having plural penetrating apertures, the membrane constituting a bottom of the tubular body. The elastic membrane is vibrated by applying a positive pulsating vibration air, and thereby discharging powder material stored in the tubular body from the penetrating apertures of the elastic membrane. The plural penetrating apertures of the elastic membrane are formed on the circumference of a circle, of which center is a specific point of the elastic membrane.

Abstract: A non-clog actuator assembly having a flexible face member that flexes away from first and second positive shutoff mating surfaces when product under pressure flows into contact with the flexible face member. The flexible face member then resiliently springs back into abutting, sealing contact with these shutoff mating surfaces. Preferably, the device flexes away from the two shutoff mating surfaces at a predetermined minimum pressure, such as 55 psig, and then flexes back into sealing contact when the product pressure drops below this minimum pressure, thereby controlling the dispensing of the product with a positive shut off (i.e., the product is dispensed in a fairly constant pattern and then shut off rather than being very strong at the beginning of the spraying process and then dribbling out at the end or under low pressure operations).

Abstract: A shower handset having teats formed in an elastomeric plate wherein positioning of the elastomeric plate behind the spray plate causes the teats to deflect outwardly, the cross-sectional areas of outlet orifices increasing in response to increasing flow rate.

Abstract: The present invention is a rain water downspout for shooting water away from a building. It includes a vertical downspout column for receiving and holding rainwater. The downspout column has an outlet at its lower end. A buoyant column inside the downspout column rests on the bottom of the downspout column and blocks the downspout column outlet until the downspout column fills with enough water to cause the buoyant column to float. A nozzle is attached to the downspout outlet. The nozzle can be oriented to shoot a stream of water away from the building. When the buoyant column inside the downspout rises, water flows out of the downspout column under pressure and shoots out from the nozzle away from the building.

Abstract: A a drip irrigation system comprises a hose with a flexible wall circumscribing and bounding a main flow-path for carrying irrigation fluid, and pressure-compensated emitters spaced along the length of the hose and providing a communicating channel between the main flow-path and a region at lower pressure outside the main flow-path, such as the region outside the hose, the pressure-compensating function of the emitters producing a flow-rate through the emitters that is weakly dependent on the pressure differential across the emitters.

Abstract: A humidifier for providing moisture to an airstream within an airduct comprises a base manifold configured for being secured to a side of the airduct, the base manifold including a steam inlet valve and a condensate drain valve; and a distributor pipe secured to the base manifold and configured to extend into the airduct, the distributor pipe being in communication with the base manifold. The distributor pipe includes first and second slots disposed opposite each other and longitudinally along a major portion of the length of the pipe, and the pipe is subject to flexing such that the slots open up in response to the steam being introduced thereinto, thereby to release steam in the airstream.

Abstract: A spring disk with a concentric through bore and a concentric counter bore of specific depth used to hold an orifice against a lapped surface of a nozzle cap in a waterjet assembly. Dimensions are chosen to provide adequate restraint without the need to force the orifice onto the spring disk. When orifice, spring disk and the retaining cap are assembled and the cap is tightened on the inlet nozzle, the spring disk is forced to the cap surface and the orifice becomes securely held and centrally aligned within the assembly.

Abstract: The invention relates to a windshield wiper having arm (10), which is driven via a drive shaft and on which a wiper blade is (20) is pivotably connected. At least one spray nozzle (64) for providing fluid to the windshield is disposed on one of the pivotable parts (10,22) and is connected via a water inlet (56) to a water pump. A nozzle body (40) with one inlet conduit (42) and at least one outlet conduit (44) is provided in a housing (36). A spray nozzle is mounted in the nozzle body. Both inlet and outlet conduits have openings on a jacket face of the nozzle body. A diaphragm (58,70), in a pressureless state, closes the inlet conduit (42) and the outlet conduit (44) on the jacket face.

Abstract: A spray nozzle (10) for a window or glass washing system has a nozzle element (24) in which at least part of a flow conduit (36) is firmed by an elastic hoselike part (26, 28, 30), which closes the flow conduit (36) and under the influence of a washing fluid pressure, widens elastically:and uncovers the conduit (36). The hoselike part (26, 28, 30), with its flow conduit (36), rests tightly in the pressureless state, with an initial tension, on a mandrel (18, 20, 22, 54, 56).

Abstract: A membrane for most commonly known nozzles has an elastically flexible, compressible resilient material placed between said inside surface of said plate and the opposite surface of the insert face; an annular outer portion that is initially flat; a projection at its center portion in bell-shaped dome form at its active surface which abuts against the inside surface of the central plate, said membrane forming a supplementary recess in its opposite surface and said insert front surface; an annular hermetic seal enclosing a small air chamber, said air chamber being deformable under pressure by the deformation of said membrane; said projecting dome at the center portion of the membrane being seated against the inside walls of the outlet orifice in the plate, describing an annular seal against said walls of said outlet channel.

Abstract: The invention relates to a spray head (100) for a fluid dispenser for dispensing a fluid, the spray head being provided with an expulsion channel (1) opening out in a spray orifice (9), and with a moving closure member (10) mounted to move between a closed position, in which it closes said orifice (9), and a spray position, said closure member (10) being urged resiliently towards its closed position, and being displaced towards its spray position by the pressure of the fluid, the spray head being provided with a swirl chamber (20) of variable volume, the volume of said swirl chamber (20) being at its maximum when the closure member (10) is in the spray position, and being substantially zero when said closure member is in the closed position, said spray head being characterized in that said closure member (10) is provided with the spray orifice (9) and with swirl channels (30) which, when the closure member is in the spray position, connect said expulsion channel (1) to said swirl chamber (20), the volume and

Abstract: A a drip irrigation system comprises a hose with a flexible wall circumscribing and bounding a main flow-path for carrying irrigation fluid, and pressure-compensated emitters spaced along the length of the hose and providing a communicating channel between the main flow-path and a region at lower pressure outside the main flow-path, such as the region outside the hose, the pressure-compensating function of the emitters producing a flow-rate through the emitters that is weakly dependent on the pressure differential across the emitters.

Abstract: A dispensing head for actuating a dispensing element associated with a container and for dispensing product from the container is provided. The dispensing head may comprise a body configured to be mounted on the container, with the body at least partly defining a feed channel. A movable element may also be provided having a portion defining a dispensing orifice. The movable element may be movable between a first position, in which the dispensing orifice is in fluid communication with the feed channel, and a second position, lacking this fluid communication with the feed channel. An elastic element may also be provided and configured to cause at least one of the portion of the movable element and a part of the body to be elastically biased against the other of the portion of the movable element and the part of the body when the movable element is in the first position.

Abstract: A shower head generally comprising a backing plate, a diaphragm and a cover plate. The rear surface of the backing plate includes a receptacle for receiving a conduit through which pressurized water may be directed to an aperture extending through the backing plate. The front surface of the diaphragm has a plurality of nipples extending outwardly therefrom with each nipple having longitudinal bore extending therethrough. The cover plate has a plurality of holes extending therethrough for receiving the nipples on the diaphragm such that the cover holds the diaphragm against the front surface of the backing plate. Pressurized water delivered through the aperture causes an outward deflection of the diaphragm away from the backing plate allowing water to be expelled through the bores in the nipples.

Abstract: A drip irrigation hose formed with a plurality of outlets for discharging the water at longitudinally-spaced locations along the length of the hose includes a plurality of emitter elements secured to the hose at longitudinally-spaced locations along its length to define a plurality of turbulent flow passageways each in communication with the interior of the hose for discharging water from a hose outlet at a slow rate. Each of the turbulent flow passageways is defined by a relatively elastic first material coextruded with a relatively stiff second material different from the first material, such that the relatively elastic material is pressure-deformable as compared to the relatively stiff material to change the turbulent flow of each emitter element in response to the pressure of the water in the hose at the respective emitter element.

Abstract: An irrigating nozzle has a tubular body having a bore closed at one end and open at its other end for coupling to a source of irrigating fluid. The body has at least one slit in its side wall and such side wall is formed of elastically deformable material which, in response to the presence of a predetermined pressure within the body, deforms and opens the slit to form a passage through which fluid may flow from the nozzle to the area to be irrigated. Upon reduction of the pressure to a value less than the predetermined value the side wall recovers and the passage is sealed automatically.

Abstract: A nozzle element is described, which can is inserted into a nozzle body, either fixed in position or adjustably, and together with the nozzle body forms a component of a windshield wiper system of a motor vehicle. The nozzle element consists of a hard metallic, ball-like base body and a cylindrical projection formed in one piece with the body. A hose-like resilient sleeve is pulled tightly onto the body, and closes off the outer ends of transverse channels which are in flow connection with a centered flow channel. Via the channel, washing fluid for the windshield is supplied under pressure. Thereby, the resilient sleeve bulges outwards so that the fluid can flow out of the nozzle element on the inside of the sleeve and on the outside of the cylindrical projection via an annular channel formed under pressure.

Abstract: A circularly symmeterical casing is deformable between a maximum flow section and a minimum flow section, making it possible to increase the pressure of the air passing through casing from a minimum pressure for the maximum flow section to a maximum pressure for the minimum flow section. The invention makes it possible to obtain a fluid jet of substantially constant range.

Abstract: A fluid delivery device including a container for holding a predetermined quantity of fluid, a gas generator for generating gas within the container, and a dispenser for cyclically dispensing fluid at predetermined intervals out of the container without cyclical actuation by a user.

Abstract: A showerhead includes a housing and a face plate to confine a chamber therebetween. A plurality of spray nipples are mounted on the face plate. Each spray nipple includes a nozzle body and a securing sleeve member. The nozzle body is made of a deformable material, and includes a stem portion with a shank end fitted to a respective inner peripheral wall in the face plate, a tapered end extending outwardly of a front major wall of the face plate, and a shoulder portion formed at a juncture of the shank and tapered ends. An enlarged head portion is secured to the shank end opposite to the tapered end, and defines an abutment shoulder to abut against a rear major wall of the face plate. A spray passageway extends from the stem portion through the enlarged head portion. Thus, the tapered end is bendable relative to the front major wall such that particulate dirt will be bounced out of the spray passageway once the tapered end swings back to its original state.

Abstract: The invention relates to an endpiece for dispensing and/or measuring out liquid pharmaceutical substances, the endpiece comprising a cylindro-conical body (1) fitted with a bottom base (13) for receiving thrust and for coupling to a tank capable of being put under pressure, and an axial ejection duct (10) containing a central core (2) and communicating firstly at its top end with a spray nozzle, and secondly at its bottom end with the tank, it is characterized in that the top end of the ejection duct (10) is closed in temporary and leakproof manner by a wall (111) which is secured to the top portion (1a) of the body (1) and which extends perpendicularly to the duct, the wall being movable in reversible manner under drive from the substance, said wall being provided with a central orifice (110) capable of being closed in the closed position by a stud (20) secured to the core (2) being forced thereagainst, the periphery of the wall being attached to said body (1) via an elastically deformable link element (112)

Abstract: A valve for dispersing a fluidic substance into a carrier fluid is disclosed. The valve is constructed from few moving parts and is particularly well adapted to distribute fluidic substances with little or no solubility in the flowing liquid into the carrier fluid. The valve is able to disperse difficult to dissolve fluids into the liquid stream by dispersing the fluidic substance into the carrier fluid at the stream's point of highest velocity and creating local turbulence at the points of dispersion. The design of the valve is such that the carrier fluid constantly flushes the valve's moving parts, and the valve is sealed from the dispersed fluidic substance to prevent jamming or clogging the moving parts by undissolved portions of the fluidic substance. The fluid pressure at which dispersal occurs and the volume of dispersal is precisely adjustable. The valve finds use in the irrigation of farmland, golf courses, athletic fields, public parks, and the yards of private homes.