Abstract: A spiral jet mixer for mixing fluids comprises an elongated body having a first inlet nozzle for introduction of a primary fluid, a mixing chamber having a diverging wall and a converging wall, a plurality of angled, helical passageways in the diverging wall for introduction of a secondary fluid into the mixing chamber in a spiralling turbulent, initially convergent flow pattern. Removable inlet nozzles allow a plurality of inlet nozzle orifice diameters.

Abstract: A dial shower head is adapted to be manually turned to select and designate one of a plurality of spray pattern heads. The spray pattern heads orbit a central point in the shower head as the dial turns. A rotor inside the shower head can spin the dial to discharge water through the designated spray pattern head as it orbits the central point. The shower head is especially attractive in areas where governments have restricted the allowable flow of water as a conservation matter since the orbiting head gives a sensation that a larger amount of water is being discharged.

Abstract: A fluid spray apparatus has an inlet assembly and an outlet assembly that are rotatable with respect to each other. The inlet assembly attaches to a fluid supply and has an outlet opening through which the fluid passes. The outlet assembly has a plurality of inlets positioned to communicate with the outlet opening as the outlet assembly is rotated into different positions with respect to the inlet assembly. Each inlet communicates with a different passage through the outlet assembly and has a set of openings that form a unique spray pattern. One of the fluid passages includes a circular chamber in which a forced vortex is created by the fluid flow. A turbine valve is disposed in the chamber and is driven by the vortex to alternately cover and expose one set of openings. The turbine valve and a chamber wall have rough textured surfaces to reduce friction. The turbine valve is made of an acetal plastic filled with silicone and polytetrafluorethylene to further reduce friction.

Abstract: There is disclosed a spray head for an airless spray gun. The spray head has a tubular housing for removable attachment to the discharge end of an otherwise conventional airless spray gun, adjacent the valve member of the spray gun. The housing is counterbored to form an inner annular shoulder and contains a removable plug that is slidably received within the housing. The annular shoulder is stop for the plug which is retained in the housing at the preselected location by a retainer member that is removably threaded into the discharge end of the housing. The plug has, on its upstream end, a valve seat to engage the valve member of the spray gun and, on its downstream end, a discharge orifice formed by divergent angular bores which intersect a through bore of the plug.

Abstract: A disposable nozzle adapter for intranasal administration of a viscous medical solution in combination with a spray container, which comprises a cylindrical body, a rod arranged in the body, and a nozzle tip. The body has a cylindrical chamber and a central bore communicated with the chamber through a channel for attachment of the spray container. The rod is provided on its one end at the least with a small-sized portion and middle-sized portion. The nozzle tip has a top wall and a cylindrical portion extending therefrom, the top wall being provided with a central spray opening including a tapered recess, and swirl grooves extending outwardly from the tapered recess to the inner surface of the cylindrical portion. The swirl grooves have a cross-sectional area increasing outwardly and its cross-sectional area is 0.03 to 0.08 mm.sup.2 at the minimum.

Abstract: The present invention relates to a rotary pop-up type sprinkler device which includes a stationary nozzle for issuing a stream of water which engages a rotary distributor. The device includes a first outer housing designed for in-ground installation, and a second inner housing telescopically mounted within the outer housing. Upon commencement of flow of water under pressure into the sprinkler device, the second inner housing is extended to an above ground or operative position. The second inner housing is normally spring biased to the below ground inoperative position so that, upon cessation of the supply of water under pressure, the second inner housing returns automatically to its below ground inoperative position within the first outer housing. The second inner housing is also provided with a nozzle disk including at least one discharge orifice for discharging the stream of water under pressure.

Abstract: The nozzle of a fuel injector is constructed to have a seat member and a single thin disc orifice member. A guide member affixed to the seat member guides the injector needle toward the seat in the seat member as the needle is reciprocated within the injector by pulsing the injector solenoid. Fuel is conveyed past the guide member by holes that are spaced radially outwardly from the central hole which guides the needle and that are skewed to the injector axis. As fuel passes through these skewed holes, it acquires angular momentum. The effect of this angular momentum is to increase the divergence of the column of fuel that is emitted by the single thin disc orifice member.

Abstract: A rotary stream sprinkler unit comprises a body having a water flow passage in which is disposed a flow control unit having one or more arcuate passages configured to control the volume and pressure of a primary stream delivered to a rotary distributor head rotatably mounted at the outlet of the housing for dividing each primary stream into a plurality of final streams and rotating each of the final streams through a selected arc during the rotation of the rotary head.

Abstract: A shower pipe (9) for use in the papermaking industry has a series of nozzles (13) through which jets of water are directed at a surface to be treated (for example, a filter screen or a pepermaker's felt). To prevent the nozzles becoming blocked by particles separating out of the water (particularly when the water has been recycled), a partition (24) or insert (33) is located within the shower pipe to define a passageway of reduced cross-sectional area through which water flows to the nozzles, with a preferred minimum velocity of 8 ft/sec.

Abstract: A multiple dilution ratio aspirator sprayer adapted to be connected to a hose for mixing a liquid with pressurized water from the hose and providing a spray of the mixture comprises a container for housing the liquid to be mixed with the water; a mixing head having a nozzle at one end thereof and a garden hose attachment device at the other end thereof; a mixing chamber within the mixing head; a hose for communicating the liquid from the container to the mixing head; a disk having a plurality of apertures therein rotatably mounted in the mixing head to control flow from the container to the mixing chamber; a flow tube communicates liquid in the container to the inlet to mixing chamber through a selected aperture in the disk so that the liquid is diluted with pressurized water at a dilution ratio determined by the size of the aperture aligned with the tube and the mixing chamber; and a cleaning orifice is positioned circumferentially from the mixing chamber so that each of the plurality of apertures may be sel

Abstract: A spray nozzle in which a nozzle body is formed with an elongated chamber having an air inlet port communicating with the side of the chamber, a liquid inlet port communicating with one end of the chamber, and a nozzle tip communicating with the opposite end of the chamber. The spray nozzle may be operated in a hydraulic or non-air assisted mode and with a relatively high flow rate by closing off the air inlet port and causing liquid to stream directly from the liquid inlet port to the nozzle tip. The nozzle also may be converted to an air assisted mode in which a stream of pressurized air is injected into the air inlet port and impinges transversely against the liquid stream to preliminarily break up or preatomize the liquid before the liquid is discharged from the nozzle tip. The conversion is effected by placing into the nozzle body an insert for reducing the flow rate of the liquid stream and for causing the air and liquid streams to interact to effect preatomization of the liquid.

Abstract: A rotary stream sprinkler unit comprises a body having a water flow passage in which is disposed a flow control unit having a variable restriction in a passage to one or more arcuate passages configured to control the volume and pressure of a primary stream delivered to a rotary distributor head rotatably mounted at the outlet of the housing for dividing each primary stream into a plurality of final streams and rotating each of the final streams through a selected arc during the rotation of the rotary head.

Abstract: A rotary stream sprinkler unit comprises a body having a water flow passage in which is disposed a multi-passage flow control unit having a plurality of passages, each configured to control the volume and pressure of a stream with multiple outlets at the outlet end of the housing, and a rotary distributor cap rotatably mounted at the outlet of the housing for rotating each of the outlet streams through a selected arc during the rotation thereof.

Abstract: A rotary stream sprinkler unit comprises a body having a water flow passage in which is disposed a flow control unit having one or more arcuate passages configured to control the volume and pressure of a primary stream delivered to a rotary distributor head rotatably mounted at the outlet of the housing for dividing each primary stream into a plurality of final streams and rotating each of the final streams through a selected arc during the rotation of the rotary head.

Abstract: A rotatable nozzle assembly for sprayers having a fluid reservoir and spray head wherein the nozzle assembly includes a spray control barrel which receives liquid from the reservoir and which includes a number of annular spaced orifices. The barrel is rotatably mounted in eccentric relationship within a tube portion of the spray head which is closed by a cap having a discharge opening therein so that the orifices in the barrel may be selectively aligned with the discharge opening in the cap to thereby vary the spray pattern discharging from the sprayer.

Abstract: The present invention relates to generation of pulsed supersonic gas flow through a slit-shaped nozzle, useful in a wide range of applications, including particle separation, wind-tunnel studies, and especially spectroscopic studies of cold, gas-phase molecules. Specifically, the present invention is directed to a pulsed slit nozzle, which has a high length to width ratio, affording high sensitivity in spectroscopic applications.In addition, the present invention provides low dead volume, superior sealing properties, ease of actuation, heatability, uniform flow, ease of construction and maintenance, chemical inertness and long life.

Abstract: A liquid dispensing device comprises a body member connectable to a source of pressurized liquid and a nozzle carried by the body member and having an inlet communicating with the source of pressurized liquid, and an outlet orifice for discharging the pressurized liquid in the form of a jet. The nozzle is rotatably mounted in the body member to either an operative position wherein its inlet faces the source of pressurized liquid for discharging the pressurized liquid through its outlet orifice, or to a self-cleaning position wherein its outlet orifice faces the source of pressurized liquid for flushing out clogging particles through the nozzle inlet. The nozzle includes two sections, one of which is presettable to a plurality of different positions to define with the other section a plurality of outlet orifices of different cross-sectional areas.

Abstract: This invention concerns a liquid distribution system consisting of modular elements fitted with two or more outlets. Each modular element (1) has an external jacket (2) through which one or more tubular ducts (3) pass, each receiving two opposed stopcocks or control valves (15) connecting or shutting off the branch pipes (4) from the internal ports (9, 10) through which the liquid flows, these inner ports (9, 10) being fitted with a projection (12) and recess (11) fitting for assembly of the various elements so as to form the distribution system, the branch pipes (4) being fitted with a spike base (27) to be inserted into the flower pot or into the flower bed, the system permitting the obtaining of a perfect and homogeneous distribution of the liquid at a minimum pressure, low costs, limited space requirements and easy installation.

Abstract: A sprinkler structure for use in agricultural and horticultural applications can be constructed so that it includes a support having a resilient arm structure for holding a distribution member so that the distribution member can be easily removed from and replaced on the support. This makes it possible to easily remove and replace the distribution member for cleaning purposes. It also makes it possible to easily substitute one distribution member for another when a change in distribution members may be desired.

Abstract: A process and apparatus for generating multiple spirally convergent/divergent fluid jet streams and an improved process and apparatus for generating particulate containing fluid jets wherein at least one discontinuity generator is provided to create fluid instabilities, enhancing entrainment and acceleration of particulates in the fluid jet stream and providing uniform distribution of accelerated particles over a large surface area.

Abstract: An aspiration sprayer comprises a head which is permanently attached to the container in which the additive material is received and which is movable between a first position in which the interior of the container is sealed and a second position in which the interior of the container is unsealed and aspiration occurs, the making of seals and appropriate fluid connecitions being accomplished by a plurality of sealed cups moved by the head. Safety means are provided to tend to retain the head in its container-sealing position. An aspiration opening is accessed by means of a nozzle which is snap-engaged with the head, and the carrier fluid after it leaves the nozzle is guided by means of flanges on the head so located and oriented as to produce a long-distance jet output. A cover protects the parts from accumulation of foreign matter.

Abstract: An aspiration sprayer comprises a disc valve for controlling the degree of aspiration over a very wide range by means of a plurality of passages of different sizes formed in the disc valve and selectively introduced into the flow path of the liquid to be aspirated, the disc valve rotating with a knob and being spring-urged into leakproof relationship with that flow path, the carrier liquid with aspiration material entrained therein emerging from the sprayer in a strong jet-like stream the nature and direction of which can be modified by a deflector mounted on the device so as to be slidable between operative positions. The knob and the disc valve may be readily assembled and disassembled and the operative passages of the valve are accessible for cleaning without requiring disassembly of the device. The passages in the disc valve may comprise a plurality of radially enlarged vortex areas interconnected by spaces of lesser width.

Abstract: A low profile sprinkler head has a circular cup-like base with a threaded male coupling for attaching to a buried water supply pipe and an axial bore therethrough. The base includes a plurality of openings to permit sand and debris to fall therethrough. A removable nozzle head is provided for insertion into the bore. The nozzle head includes fluted water passages and various configurations may be provided to produce different water spray patterns. Nozzles are designed to produce a friction fit in the bore. The upper portion of the nozzle head has a curved underside which is disposed within the base to deflect the spray in a horizontal plane. The assembly is installed below the grass mowing level to permit mowing without damage to the sprinkler head.

Abstract: A liquid sprinkler comprises a nozzle, a bridge including an outer section overlying the nozzle, and a rotor in alignment with the nozzle bore so as to be impinged by the water jet issuing therefrom. The outer bridge section includes a deflector surface aligned with the nozzle bore and having an enlarged area such that when the deflector surface is impinged by the axial jet from the nozzle bore, it produces an annular spray laterally of the sprinkler, whereby the sprinkler may be converted from a rotary sprinkler producing a rotating jet, to a static sprinkler producing an annular spray by merely removing the rotor from the nozzle and permitting the jet to impinge on the deflector surface area of the outer bridge section.

Abstract: A flow control nozzle and shutoff valve has a housing which defines inlet and outlet openings on opposite sides thereof, and a flow channel extending therethrough for communicating the inlet and outlet openings. A control member is journaled by the housing for rotation about an axis that intersects the flow channel. The control member has a ball-shaped portion that is positioned along the flow channel. An elongate flow passage is formed through the ball-shaped portion of the control member. A curved, screen-like, flow regulating formation is positioned at one of the ends of the flow passage. The control member is movable relative to the housing among first, second and third control positions to selectively bring its flow passage into or out of alignment with the flow channel, and to selectively position the screen-like formation near the inlet and the outlet openings.

Abstract: A gas burner for a domestic cooking apparatus comprising a gas feed tube, a mixing tube and a burner cover near the outlet of the mixing tube. An outlet member is provided in the form of an apertured flow plate which is connected to the gas feed tube in sealing relationship by way of an intermediate flexible ring. By exchanging the flow plate the burning capacity can be changed at the site of use.

Abstract: A multiple-nozzle head to be exchangeably mounted to jet tubes, in particular of spray cleaning apparatus, comprises a cavity into which issues at the rear a feed aperture opposite to which are mounted on the front end side of the cavity several discharge apertures connected to several preferably different nozzles, at least one freely moving valve sealing element being located in said cavity and by gravity can be moved in front of one of the discharge apertures, each discharge aperture receiving one valve seat, one support ring holding the valve seat, and connected thereto in the direction of flow one jet-aligner which in cross-section is preferably cross-shaped and which joins the nozzle.

Abstract: A spray gun is disclosed intended alternatively for the application of plaster to walls, and the application of particulate finishing materials to the wet plaster. The gun has a hand held stock supporting a tubular housing, which receives at its front end interchangeable barrels having apertures in their side walls which can be brought into coincidence with an aperture in the housing communicating with a supply of material to be sprayed. One barrel has a handle so that it can be rotated in the housing to adjust the degree of coincidence between the openings and thus control release of particulate material into the barrel, while the other barrel is provided with a nozzle for the spraying of plaster. Compressed air for carrying out the spraying is admitted through an axial pipe connected to an external trigger.

Abstract: A multiple dilution ratio hose-end sprayer having a rotatable selector dial having a plurality of orifices and associated cavities. The orifices are adapted to intersect a fluid passageway extending from a fluid container to a mixing chamber used for mixing selected amounts of fluid from the container with water entering the mixing chamber. Water is supplied to the mixing chamber through a first and second spaced apart nozzles, an annular channel extending from between said nozzles to an intersecting channel adapted to communicate with a cavity associated with an orifice intersecting said fluid passageway. The nozzle opening from said second nozzle being smaller than the discharge opening for the sprayer, but preferably equal to or smaller than opening from the first nozzle.

Abstract: An adjustable sprinkler system includes a plurality of sprinkler units disposed about an area to receive water. Each sprinkler unit includes a tapered base portion driven into the earth, and a pair of connector nipples to receive and retain flexible tubing which connects the sprinkler units and supplies water under pressure thereto. Each sprinkler unit includes a cylindrical member extending upwardly from the tapered base portion, with a cap threaded onto the exterior of the cylindrical portion. An arbor is received in a bore in the cylindrical member and is secured pivotally therein. The arbor is rotatable to adjust the rate of flow of water from the sprinkler, while the cap is rotatable independently to vary the spray pattern issuing from each sprinkler.

Abstract: The disclosure is directed to a spray head device for use in a center pivot irrigation system which is capable of operation under high or low water pressure. The spray head device includes an enclosed housing adapted for connection to a source of water, and which houses water jet apparatus constructed to issue a jet of water and sized for a predetermined range of volume flow. A frame connected to the housing suspends a diffuser element in a position where it is impinged by the jet of water to disperse the water into a flow pattern of predetermined configuration. A resilient washer is carried by the water jet apparatus to provide a substantially constant volume output. The water jet apparatus and diffuser element are removably and interchangeably carried by the enclosed housing and frame, respectively, whereby the rated volume flow of the spray head device may be varied.

Abstract: A stream of water introduced to a shower head is split into two paths. The first water path is discharged in the form of a cone shaped spray. The second water path is channeled into a chamber containing a rotor rotationally responsive to the flow of water into the chamber and which rotor includes a chopper for regulating pulsed discharges of water through varying ones of a plurality of discharge ports. The proportional water flow in the two water paths is selectively variable. Air is introduced to the stream of water upstream of the water path split to aerate the water and reduce the quantity of water flow without an apparent water flow reduction to a user. A non-pulsating aerated shower head is also described.

Abstract: The disclosure is directed to a center pivot irrigation system capable of operation under high or low water pressure and a constant volume sprinkler head therefor, which together provide uniform water distribution over an agricultural field notwithstanding the presence of hills and valleys in the field, pressure fluctuations of the water source, friction losses or the direction or magnitude of the wind. The system employs a plurality of sprinkler heads each of which provides a constant volume of water to the annular area over which it travels. Because the annular areas increase in size and total water requirements with increasing distance from the center pivot, the water delivering capacity of each sprinkler head is chosen as a direct function of its radial distance from the center pivot, thus insuring the same water distribution to all points on the field. Each sprinkler head is designed to produce a spray pattern that extends laterally outward with a predetermined directional orientation.

Abstract: A vertical-axis water sprinkler with a reversibly rotating spray head has an internal control shell rotating with the spray head in a fixed housing. Adjustably fixed in the housing are a plurality of pattern defining plates. A pattern sampling disk with a specially contoured aperture therein is carried on a control shell within the housing and communicates from a water inlet in the housing to the spray head. The aperture sweeps across the face and edge of each of the pattern defining plates as the control shell rotates in the housing. The positions of the pattern defining plates control or limit the volume of water flow to the spray head, thereby generating a ground coverage pattern conforming to the relative positions of the plates.The speed of rotation of the spray head is made constant despite changes in the output flow rate by design selection of a friction bearing and of the surface areas of the control shell exposed to pressure forces in upward and downward directions.

Abstract: A two-piece nozzle for use on hand actuated pump dispensers is disclosed. The nozzle features a tubular member, which may be a part of the main body of the pump, having a circular, planar face at its terminal end. A hollow bore extending through the tubular member and the hollow face is in liquid passage communication with a recess in the planar face. A cap is rotatably mounted to the tubular member and has an end wall with a planar inside surface which will form an interface with the circular planar face of the tubular member. Radially displaced from the center axis of the circular skirt is a dispensing orifice which is registerable with the recess present in the planar face of the tubular member. A sealing boss surrounds the dispensing orifice and bore to provide a liquid-tight seal with the planar face when the orifice is not in registration with the recess. Mounting structure is provided on the cap and tubular member for achieving a rotating mount of the cap to the tubular member.

Abstract: An orifice plate for metering a mixture of fuel and air to a blower for supply of the mixture to a burner positioned in a central plenum of a heat exchange system, the present plate further provides the sole sealing structure necessary for sealing conduit members which communicate the blower with a fuel regulator. The present orifice plate can be configured with apertures of differing size and number to facilitate field alternation of the heat capacity of the system and to allow rapid conversion of the system to alternate fuels without the need for removing and installing additional sealing structure. The ratio of fuel to air present in the mixture which is burned in the system is controlled by the size and/or number of apertures formed in the orifice plate.

Abstract: For use with an irrigation sprinkler, an interchangeable nozzle apparatus is provided which includes a tubular housing mounted at the discharge end of the sprinkler, and arranged to receive any of a plurality of insert members which may be selected for controlling the flow rate of water ejected from the nozzle, controlling the distribution of water over the range of throw of the sprinkler, or enhancing the range of throw of the sprinkler when water is supplied to the sprinkler at relatively low pressures. In part-circle applications on a reaction drive type sprinkler, the inserts are arranged to limit movement of the reverse drive arm into the stream of water ejected from the nozzle by an amount dependent upon the nozzle size, thereby resulting in substantially the same reversing force regardless of nozzle size.

Abstract: A method of fire fighting wherein open ended nozzle units are mounted in high rise or like building walls so that fluid conduits may be coupled from outside the room or space containing a fire within the building. This provides a special building structure wherein opposite ends of nozzle units may be accessible from different rooms, and the nozzle units are tubular bodies containing internally formed insert tubes defining the fluid flow pattern.

Abstract: Nozzle structure particularly adapted for use with pressurized fire suppressants is disclosed which includes an elongated, tubular, apertured body, and a visible, easily replaceable, fluid flow-directing slug disposed therein for controlling and directing lateral fluid flow from the nozzle. The slug is located in partial or complete blocking relationship to certain of the body sidewall apertures so as to define therewith outlet ports of desired effective dimensions and to control the spray patterns emanating therefrom. Use of a slug of different configuration serves to alter nozzle performance, discharge direction and discharge rate without need for any additional modifications of the nozzle. The annular end wall of the body allows the adjacent end face of the slug to be seen, such that appropriate coding can be applied to the slug end face for easy determination of the design discharge rate of the nozzle.

Abstract: A fitting coupled to a water source, comprising an orifice, means for regulating the quantity of water passing through said orifice, an abutment for water passing through said orifice, and laterally displaced water outlet means.

Abstract: A multi-nozzle high pressure fluid sprayer which can be safely indexed to a selected nozzle while the sprayer is under high fluid pressure. The sprayer head contains an offset member having at least one fluid nozzle therein. The offset member can be rotated to align a selected nozzle with a source of high pressure fluid.

Abstract: A spray nozzle apparatus and a method of making a spray nozzle in which a variety of nozzle sizes can be made using several common components. The nozzle head has a threaded base for attachment to a water line which base has an opening passing therethrough for mounting removable nozzle inserts therein with retainer rings. A water-deflecting portion is removably mounted to the base so that a curved portion thereon will deflect water at a predetermined angle. The curved deflector is attached to the base with a single screw and a pair of positioning studs.

Abstract: An airless sprayer having the capability of replacing most if not all of the so-called aerosol sprayers with improved performance, reduced cost and elimination of potential damage to the environment from an aerosol propellant. The unit is refillable by the user at any time suiting his convenience. The liquid to be sprayed is contained in a first chamber above an internal free-floating piston powered by air pressure in a second chamber below the piston. The system includes a unique compressor unit for automatically pumping air at operating pressure into the lower chamber.

Abstract: A burner orifice member for a detachably mounted gas oven burner is mounted directly on the end of the burner gas supply conduit by screw-threaded engagement, and the end portion of the gas supply conduit is rigidly connected to the oven wall by bracket means, with the orifice member in fixed alignment with the burner inlet.

Abstract: A caplike member is received onto a container for including a supply of materials to be sprayed onto lawns, shrubs and the like. A swivel nut mounted on the caplike member interconnects with, say, a water hose. A rotatable drumlike body on the caplike member has a pair of inserts with different sized bores passing therethrough, and which bores or passages are selectively positionable in alignment with a feed opening connected to inlet water, which tube lower end has a single proportion balance control orifice. The insert openings have lateral communication channels opening into a feed tube that extends into the container. A nozzle is rotatably affixed to the drumlike body and is individually adjustable to select any one of several exit openings which form different spray patterns. A further aspect is the provision of a hand operable valving device which directs inlet water into the container as a pressurized jet for initial mixing with the spray materials.

Abstract: A caplike member is received onto a container for including a supply of materials to be sprayed onto lawns, shrubs and the like. A swivel nut mounted on the caplike member interconnects with, say, a water hose. A rotatable drumlike body on the caplike member has a pair of inserts with different sized bores passing therethrough, and which bores or passages are selectively positionable in alignment with a feed opening connected to inlet water, which tube lower end has a single proportion balance control orifice. The insert openings have lateral communication channels opening into a feed tube that extends into the container. A nozzle is rotatably affixed to the drumlike body and is individually adjustable to select any one of several exit openings which form different spray patterns. A further aspect is the provision of a hand operable valving device which directs inlet water into the container as a pressurized jet for initial mixing with the spray materials.