Abstract: A rotatable sprinkler comprises a base with a continuous curved surface and a rotation element disposed rotatably and relatively to the base. The rotation element has an outlet that connects to a water source. A decorative unit is disposed on a support, part of which is located on the rotation element and the free end of which is in contact with the continuous curved surface of the base. Therefore, the decorative unit may rotate relatively to the base, or move up and down when the free end of the support is pressed against the continuous curved surface.

Abstract: A turf management system includes an irrigation system for providing water to the turf at a turf site, and an irrigation evaluation system for evaluating the performance of the irrigation system. The irrigation evaluation system segments the turf site into irrigation management units, where each of the irrigation management units includes at least one sprinkler head. Qualities of the turf are measured to generate collected data points. The data points are used by the irrigation evaluation system to compute a value for the turf in each of the irrigation management units. The values can then be used to identify irrigation management units having common characteristics. The values can be used to define irrigation management zones for controlling the irrigation system.

Abstract: Loop-powered control of pneumatic process control devices is disclosed. A disclosed example apparatus includes an interface for use with a pneumatic process control device of a process control system. The interface includes a power input to scavenge power from a loop power control signal associated with the process control system, a sensor to determine a position of a movable control input associated with the process control device, a comparator to compare the determined position of the movable control input with a desired position of the movable control input, and an actuator to cause movement of the movable control input based on the comparison of the determined position with the desired position, where the actuator is to be powered with the scavenged power.

Abstract: A control system for a low-volume irrigation system includes a plurality of valve controllers for opening and closing valves; an irrigation system controller for controlling the valve controllers in accordance with an irrigation plan; and a graphical user interface for allowing a user to interact with the irrigation controller and to create the irrigation plan. The graphical user interface displays an irrigation zone list, an irrigation set list, and an irrigation plan field. The user interface has drag and drop functionality that permits an irrigation zone listing from the irrigation zone list to be dragged and dropped into any of the irrigation set listings in the irrigation set list and that permits an irrigation zone listing or an irrigation set listing to be dragged and dropped into the irrigation plan to create irrigation steps within the irrigation plan.

Abstract: A water sprinkler includes a housing and an ejection head. An impeller is assembled in the housing, pushed by water, and connected to a cam. A water-hit target is pivoted with the housing via a compression spring, and an impacted portion of the water-hit target is extending outside of the housing. The water-hit target repeatedly impacts the housing because of the pivoting motion caused by the pushing of water flow and by the pulling of the compression spring, so that the housing is pivoted to change the ejection direction of the ejection head. A water baffling cover is pivoted with the housing. A abutted member is assembled on the water baffling cover and abutted against the cam. The cam can push the abutted member to drive the pivoting motion of the water baffling cover, so that the water baffling cover shields the ejection head by different extents.

Abstract: An exemplary embodiment of the downhole oscillator includes an outer housing at least partially surrounding a motor and a removably coupled eccentric member. The motor at least partially drives the rotation of the eccentric member thereby producing oscillations or vibrations along the outer diameter of at least a portion of the downhole assembly. The motor's action is at least partly facilitated by expulsion of fluid from the drill string through the motor and onto the outer housing interior such that the force of the fluid produces rotation in the motor. Rotation may be enhanced through similar expulsion of fluid from the eccentric member. Alternatively, the fluid may be expelled from the motor and/or eccentric member against the wellbore thereby providing the desired rotation. A method of use may include providing an outer housing, motor capable of producing rotational movement, and eccentric member and coupling same.

Abstract: A turf management system includes an irrigation system for providing water to the turf at a turf site, and an irrigation evaluation system for evaluating the performance of the irrigation system. The irrigation evaluation system segments the turf site into irrigation management units, where each of the irrigation management units includes at least one sprinkler head. Qualities of the turf are measured to generate collected data points. The data points are used by the irrigation evaluation system to compute a value for the turf in each of the irrigation management units. The values can then be used to identify irrigation management units having common characteristics. The values can be used to define irrigation management zones for controlling the irrigation system.

Abstract: A sprinkler. A sprinkler nozzle assembly is coupled to a base for rotating movement. A stationary cam with cam surface engages a cam follower which open and close valves to regulate water flow as selected angles of rotation. In an embodiment, a pop-up sprinkler is provided, and the moving components are part of the riser. A turbine drive mechanism is coupled to an upper housing on which a plurality of sprinkler nozzle assemblies are affixed. The drive mechanism includes water driven impeller and a gear train adapted for operatively driving the upper housing, and associated sprinkler nozzle assemblies.

Abstract: A percussive sprinkler with adjustable discharge angle has a pedestal, adjusting ring, main body, percussion guide frame and sprinkler head driving rod. The percussive sprinkler is characterized by that, the height of the spacing for the driving rod retaining surface of the adjusting ring can be adjusted via an adjustor, such that the second end on the sprinkler head driving rod connected to the sprinkler head is abutted onto the driving rod retaining surface. When the main body of the percussive sprinkler is rotated, the sprinkler head driving rod will shift vertically along the circumferential path on the driving rod retaining surface, so the sprinkler head is driven to swing vertically with change of the discharge angle. In such a case, spray with different sprinkling distance can be generated by the sprinkler head, thus making up the shortcomings for more uniform sprinkling coverage with higher flexibility and applicability.

Abstract: A multi-zone landscape irrigation and lighting system includes a personal computer equipped with a detachable wireless remote, and a multi-station controller operating a plurality of irrigation valves and lighting circuits in accordance with schedules wirelessly transmitted to it by the computer through the remote. When detached from the computer, the remote can wirelessly operate selected irrigation or lighting zones manually. The computer has an intuitive graphic user interface capable of using actual zone photographs to identify individual zones in a strip of zone icons. The icon strip is movable past a lens-like window, the zone icon under the lens at a given time determining the zone currently programmable. A residential system can be operated by a contractor from the street, and the system can be programmed by e-mail from the contractor's shop. Fully automatic operation may be derived from data obtained over the Internet.

Abstract: Methods of cleaning a swimming pool using a swimming pool cleaning head. A first method may include intermittently raising a nozzle head under water and ejecting a stream of water under water, incrementally rotating the nozzle head in a clockwise direction, retracting the nozzle head, sliding a cam reverser, and reversing the direction of rotation of the nozzle head with the cam reverser to counterclockwise. A second method may include rotating a stem by sliding at least one pin coupled to the stem through at least one channel in a cam, the stem configured to release a stream of water under water in a swimming pool. The method may further include reversing the direction of rotation of the stem by sliding a slidable section of the cam with the at least one pin.

Abstract: Many areas watered by prior art oscillating sprinklers are substantially rectangular. However, prior art oscillating sprinklers typically produce generally or substantially elliptical water distribution patterns. This geometric incompatibility causes problems and inefficiencies. Embodiments of the current invention include an oscillating sprinkler that automatically produces a substantially rectangular water distribution pattern. The substantially rectangular water distribution pattern may be produced by automatically controlling the distance from the sprinkler that streams of water travel before impacting the ground. This is accomplished by automatically and sequentially opening and closing and/or restricting flow to select nozzles at select points and within select portions of the oscillation cycle. A current invention oscillating sprinkler may reduce waste water, may reduce run-off waste water, and may automatically provide water to the corner areas of typical substantially rectangular areas to be watered.

Abstract: Methods of cleaning a swimming pool using a swimming pool cleaning head. A first method may include intermittently raising a nozzle head under water and ejecting a stream of water under water, incrementally rotating the nozzle head in a clockwise direction, retracting the nozzle head, sliding a cam reverser, and reversing the direction of rotation of the nozzle head with the cam reverser to counterclockwise. A second method may include rotating a stem by sliding at least one pin coupled to the stem through at least one channel in a cam, the stem configured to release a stream of water under water in a swimming pool. The method may further include reversing the direction of rotation of the stem by sliding a slidable section of the cam with the at least one pin.

Abstract: A misting system may include at least one prefabricated mist line comprising at least one mist tee having at least one arm extending outwardly from a body, a latitudinal threaded hole defined in the body, and a longitudinal hole extending through the at least one arm and at least into the body and in fluid communication with the latitudinal threaded hole. A method of forming a misting system may include prefabricating at least one mist line by: aligning an end of at least one tube having a hole there through of a first predetermined diameter with at least one arm of at least one misting tee that is of a second predetermined diameter greater than the first predetermined diameter; and press-fitting the at least one arm into the end of the at least one tube, thereby deforming an end portion of the at least one tube.

Abstract: A parts washer having a cleaning chamber and a receptacle into which parts to be cleaned are placed. The receptacle is rotatably mounted within the cleaning chamber and is rotated by a drive device. One or more spray manifolds are provided, each having a plurality of spray jets arranged to spray cleaning fluid onto the parts in the receptacle. The spray manifolds are moveably mounted within the cleaning chamber and are coupled to the drive device such that the drive device causes reciprocating motion of the spray manifolds.

Abstract: A sprinkler apparatus comprises a spray tube configured to move between a first side position and a second side position. The sprinkler apparatus also comprises a first side adjustment mechanism and a second side adjustment mechanism. Each adjustment mechanism comprises markings indicating lesser to greater degrees of sprinkling coverage area. The sprinkler apparatus further comprises a coverage indicator component attached to the spray tube. The coverage indicator component includes at least one window defined therein. The first side adjustment mechanism and the second side adjustment mechanism are independently moveable in relation to the coverage indicator such that the markings on the first side adjustment mechanism and the second side adjustment mechanism are selectively viewable to the user through the window. The positioning of one of the markings within the window results in a related degree of sprinkling coverage area by the sprinkler apparatus.

Abstract: A turbine for a sprinkler is disclosed for self-governing its rotational velocity. As a rate of fluid through the sprinkler increases, particularly when air is used to flush the sprinkler system, a portion of the turbine shifts outwardly so as to decrease alignment of vanes located thereon with directed water streams for controlling the rotation of the turbine.

Abstract: A recessed incrementally rotating nozzle assembly is located in a wall or bottom surface of a swimming pool in fluid communication through a conduit with a source of water under pressure from a valve, which valve periodically releases water into the conduit. Each time water flows, a nozzle housing is raised to eject a stream of water. As the nozzle housing rises, it is incrementally rotated by a pin engaging a saw tooth member of a cam ring. Upon cessation of flow, the nozzle housing is retracted and during retraction the nozzle housing is further incrementally rotated by the pin engaging another saw tooth member of the cam ring. After a predetermined degree of angular rotation, a cam reverser slidably reorients protrusions guiding the pin into and out of the saw tooth members to cause the pin to be guided by the opposite side of the saw tooth members and thereby cause reversal of the direction of rotation of the nozzle housing.

Abstract: A sprinkler apparatus 10 for providing more even coverage of a sprinkled area with water which is achieved by a different speed of rotation of a water deflector 13 relative to a water diffuser 12 in a wobbling sprinkler head. A diffuser head 11 is rotatably attached to a base 16 and has a water diffuser 12 for diffusing water passing therethrough. A water deflector 13 is rotatably attached to the rotatable diffuser head 11 for directing water emitting from the nozzle 21 through the water diffuser 12. A viscous fluid brake 15 couples the water deflector 13 to the water diffuser 12 to vary the speed of rotation of the water diffuser 12 relative to the water deflector 13 to obtain a more even coverage of the area being sprinkled.

Abstract: A water sprinkler for irrigating lawn and garden areas has two axes of movement, one transverse to the other. A barrel moves or oscillates on one horizontal axis to direct water spray from nozzles carried on the barrel across the length of the area, and the nozzle outlets also simultaneously move or oscillate on axes transverse to the barrel axis to spray water across the width of the area. As the nozzle outlets move or oscillate in the two transverse directions, the ground area is irrigated uniformly over time by application of water in a criss-cross pattern. The area sprayed can be surprisingly large compared with single-axis oscillators, or the area may be limited to a single row or a narrow rectangular area, by adjustment of the barrel and outlet movement and/or the water pressure.

Abstract: A wobbling irrigation sprinkler head for attachment to a water conduit has a wobbling sprinkler head facing upward from the water supply conduit. The sprinkler head has a base having an attachment portion for attaching to a water source and a nozzle mounted to the base for directing water therethrough. A wobbling water deflector head is movably attached to the base and has a water deflector pad thereon having a deflector surface of predetermined shape to deflect water being emitted from the nozzle to rotate the wobbling water deflector head. A counterbalancing skirt extends from the water deflecting head around a portion of the base and spaced from the base for rotation with a wobbling water deflector head so that counterbalancing the skirt counterbalances the water deflector head to dampen vibration forces in the deflector head.

Abstract: A rotary sprinkler (10) including a water inlet, a water outlet arranged for rotation about a rotation axis (14), a water director associated with the water outlet and a watering pattern determiner associated with at least one of the water outlets and the water director. The sprinkler (10) operates to cause the sprinkler (10) to have a substantially non-repeated watering pattern extending over more than 360 degrees about the rotation axis. The watering pattern is asymmetric with respect to the rotation axis (14) and is rotated for each successive rotation of the water outlet about the rotation axis (14) with respect to the watering pattern of the preceding rotation by a predetermined amount, whereby the successive rotations increase the angular uniformity of watering about the rotation axis.

Abstract: A shower head more particularly constructed as a lateral shower contains in its interior a turbine drivable by the flow of the water flowing into and out of it. During its rotary movement the turbine entrains a nozzle body, which engages with a spigot in a guide path. The water leaves the shower through a bore located in the nozzle body. As a result of the design of the guide path it is possible to continuously modify the direction in which the water jet passes out of the shower head.

Abstract: An adjustable pattern irrigation device is provided with a head member that is pivotably coupled to a plurality of arm members that further serve as a break for incoming water. A cam and follower determine the trajectory of the tilting head member. A plurality of removable and interchangeable cams having an endless number of shapes provided different planned irrigation patterns. Adjustment plates are optionally coupled to the cams to allow for adjustments to the irrigation patterns.

Abstract: An apparatus imparts movement to a fluid dispersing nozzle with a mechanism for converting rotational movement about an axis of rotation into orbital movement about the axis of rotation, and an elongate member is connectable to the mechanism at one end and is connectable to a fluid nozzle at an opposite end from the mechanism. The orbital member provides orbiting movement of the opposite end in response to rotation of the mechanism about the rotational axis, and provides stationary centered positioning of the opposite end in response to a non-rotating mechanism. A speed multiplier transmission or gearbox can be provided between the motor shaft and drive spindle if desired. A separate mixer is positionable within the member and is moveable longitudinally with respect to the member during use. The mixer includes a valve member connected to one end for movement relative to a valve seat defined by an inner surface of the cone.

Abstract: An actuator assembly for a rotatable sprinkler head includes a base supported for rotation on a stationary platform assembly, a hub mounted for rotation on a shaft supported in the base; a lever arm pivotally mounted at one end to the hub and extending downwardly toward a stop plate assembly on the platform assembly, the lever arm having a free end extending toward the stop plate assembly. The stop plate assembly is configured to define two or more distinct arcuate paths of travel for the lever arm, and the lever arm is adjustable to locate the free end in any of the three arcuate paths of travel.

Abstract: The apparatus is designed to dispense sealants and adhesives onto a workpiece in a robotic or manual application. The apparatus has a motor, a through shaft and a rotating shaft. The rotating shaft is hollow and has an off-center aperture at the end thereof through which extends one end of the through shaft. By rotating the rotating shaft, the end of the through shaft has imparted to it an orbital motion which is capable of providing a swirl type pattern onto the workpiece.

Abstract: A controlling device for a rotating sprinkler is composed of a sleeve (10), a compressing block (21), a spring (22), a controller (23), a rotator (24), a cushion (25), and a shelter ring (26). The rotator (24) rotates with a rotating sprinkler (50) synchronously and operates with the controller (23) to construct a gap selectively therebetween so that a quantity of water flowing into the rotating sprinkler (50) is changed when the gap is formed or not. Whereby the controlling device arranges a substantially rectangular spraying arrangement of the rotating sprinkler (50).

Abstract: An adjustable sprinkler nozzle includes a cap with a first spiraling face, the bottom edge of which is provided with a stepped flange. A body that forms a nozzle orifice with the cap is composed of upper and lower bodies coupled together using high frequencies such that the upper body, during injection molding, is formed with a third spiraling face that extends from an inner tubular wall thereof to correspond to a second spiraling face on the outer periphery. The inner diameter of the third spiraling face can just be fitted into by the larger outer diameter of the stepped flange of the cap. Furthermore, a longitudinal drop face formed between the high and low planes of the third spiraling face is provided with a first stop piece projecting upwardly from a highest point thereof. The stop piece is inwardly provided with an inclined face. The inner wall surface of the third spiraling face is provided with a second stop piece relative to the position of the first stop piece.

Abstract: A swivel lawn sprinkler includes a mounting rack for mounting, a water tube vertically connected to the mounting rack by a hose connector and adapted to receive water from a water source through the hose connector, a pipe connector fastened to the top end of the water tube, the pipe connector, a swivel sprinkler head coupled to the pipe connector and forced to rotate on the pipe connector by water pressure when sprinkling, and a slide coupled to swivel sprinkler head and forced to move two ornaments alternatively up and down and to oscillate symmetrical pairs of wings up and down upon rotary motion of the spray tube.

Abstract: A rotary spray nozzle is provided in a housing which has one or more water inlets that direct the incoming water flow in a direction tangential to the inner walls of the housing. This creates a circular or swirling motion of water within the housing which in turn imparts a rotary motion to the nozzle. The liquid or water in the housing exits the housing through the rotating nozzle to thereby provide a rotary spray.

Abstract: A glass washing and dishwashing machine including an improved oscillating spray mechanism, an improved tank valve/water diversion mechanism, and an improved water tank assembly, which are all incorporated into the glass washing and dishwashing machine. The oscillating spray mechanism directs a spray of wash water or rinse water at glasses, dishes or the like and oscillates the spray mechanism in order to more completely contact glasses or the like with wash water during a washing and rinsing operation. The tank valve mechanism selectively supplies wash water or rinse water from the tank assembly to the spray mechanism. The valve/water diversion mechanism is interconnected with two water reservoir chambers for delivering wash or rinse water to a washing station.

Abstract: A sprinkler for irrigating an area having a shape with an irrigating liquid includes a base; an inlet disposed on the base for receiving the irrigating liquid from a source; and a nozzle having a central axis, the nozzle being rotatably coupled to the base about the central axis and operatively coupled with the inlet to receive the irrigating liquid, the nozzle being adapted to spray the irrigating liquid out onto the area.

Abstract: A wobbling sprinkler head is provided, especially for use in irrigation systems such as self-propelled mechanically moving irrigation systems, in which the wobbling sprinkler head faces downward from the water supply conduit. The sprinkler head has a body having a water inlet as well as an attachment for connection to the water supply and a nozzle for directing a stream of water from the sprinkler body. The sprinkler head has one or more arms extending from the body around a water deflecting head. The water deflecting head is movably attached to the sprinkler head body and has a water deflecting surface positioned to deflect water from the nozzle and move the water defecting head. The bottom of the water deflecting surface has a protruding member extending therefrom, for interacting with a second protruding member extending from the arms of the sprinkler head body. The protruding members can have magnets of opposing polarity mounted therein.

Abstract: A circular, surface-coating application of sprayable composition or mortar is achieved through a rotatable spray head with at least one lateral discharge opening. The composition or mortar is distributed as uniformly and over as large a surface area as possible in the vicinity of the spray head. The spray head is moved axially forwards and back in an axial direction through the same distance during conveying of the composition or mortar and is rotated automatically through the same angular distance about the axis.

Abstract: A rotary sprinkler and sled base. The sled base has a main body with a pair of wings pivotally connected thereto at opposed sides. The wings permit compact storage when folded in and provide a wider footprint when folded out to make the sprinkler more stable. The sprinkler head has a water channel which permits the jets to be lower to the ground for increased sprinkler stability. The sprinkler has a plurality of different sized vertical jets to achieve a more uniform water distribution, the top jet spraying further from the sprinkler, the bottom jet spraying the closest. The sprinkler has deflection means. The deflector may be a manually adjustable to fix the maximum spray distance or the deflector may be connected to a cam follower which follows a deformable circular "roller coaster" cam surface to alter the maximum spray distance as the sprinkler rotates. The deflector assembly may also include means for reducing water flow to the all of the jets.

Abstract: An oscillating sprinkler comprises a fixed base assembly (12) and an upper housing (14) from which water distributing arms (16, 18, 20, 22) extend. A bearing member (66) depends from the upper housing (14) and is seated within the base assembly (12). An upper surface (26) of the base housing (12) comprises an undulating cam surface and bend portions (110) of the arm members act as cam followers. Bend portions (110) engage cam surface (26) and cause a reciprocal tilting of the upper housing (14) about the bearing member (66) as the upper housing (14) rotates about the base assembly (12). Water ejected from orifices (114) in the arm members (16, 18, 20, 22) act to propel the upper housing along its rotational path. A cap member (144) is rotationally mounted to the top of the upper housing (14) and pressurized water ejected through orifices (148) in the cap member (144) act to rotate the cap member in a direction opposite to the direction in which the upper housing rotates.

Abstract: The subject matter of the invention is an apparatus for the integral sprinkling of liquids laden with solid materials in suspension of appropriate granulometry, such as a blanket of marc in wine-making, contained in a vat having a vertically movable cone (1) disposed at the bottom part (8) of a return pipe (2a) of constant section on which it slides by means of a sleeve (3) and is held by means of an arm (23) provided with a projection (4) resting on the periphery (5a) of a cam (5) affixed to a shaft (6) connected to a variable-speed electric motor (7) so that, during the continuous rotation of the motor (7) the cone (1) will be positioned at variable heights with respect to the bottom part (8) of the pipe (2) in order to sprinkle the surface integrally with the liquid, and to distribute a quantity of liquid in a uniform manner at any point on the blanket.

Abstract: An improved water-sprinkler having a vertically-pivotal control flap that is adjustably positionable with respect to the outlet of the nozzle, which controls the distances the emerging water-stream will reach. The control flap has an inner bracket-end that is pivotally mounted to a pivot block at the lower end of the bracket end, the upper part of the bracket-end being pivotally connected to a distal end of a control arm that is horizontally-adjustable via a series of circularly-arranged, independently and horizontally-movable sliding reeds or blocks, the distance of these sliding blocks from their radial center determining the horizontal position of the other end of the control arm, and, therefore, the end of the control arm connected to the upper end of the flap, whereby the spacing of the flap from the nozzle-outlet may be cyclically changed according to a desired pattern determined by the relative radial positions of the plurality of sliding blocks.

Abstract: A sprinkler device including a body on which a tubular spindle is mounted for rotation about a rotational axis relative to the body. The spindle has a fluid inlet in the region of the body and includes a slanted portion projecting from the body at an angle to the rotational axis. A head is rotatably mounted on the slanted portion of the spindle in engagement with the body and includes a fluid discharge member which communicates with the interior of the tubular spindle. The slanted portion of the spindle and the engagement of the head with the body are such that when the spindle rotates relative to the body, the head and the discharge member rotate relative to the body about the rotational axis and also oscillate in a longitudinal direction with respect to the rotational axis during rotation about the rotational axis.

Abstract: A low drift spray apparatus for controllably continuously pivoting the nozzle during discharge of spray composition whereby the emitting spray pattern describes the frustum of a cone as the nozzle pivots includes a flexible tubular segment of the liquid supply line adjacent to the nozzle; a pivotal support adjacent the nozzle for pivotally supporting an end of the flexible tubular segment about a fixed point; a fixed support at the other end of the segment, the segment being axially compressed to cause lateral displacement of a portion thereof; and a reciprocating subassembly adapted to continuously move the laterally displaced portion in a circular path substantially about an axis consisting of a line between the ends of the segment.

Abstract: A sprinkler assembly having a discharge nozzle for discharging water at a substantially constant volume and velocity driven rotatably about a vertical axis by a water turbine and gear drive for rotating said nozzle at varying rotational speeds in each cycle of rotation for varying the quantity of water discharged along the radial land areas extending from the axis of rotation as the length of the radial land area varies when irrigating a non-circular land area. A movable diffuser is mounted on the nozzle and is drivingly connected with the gear drive by a cam arrangement to vary the radial length and pattern of discharge of water corresponding to the rotational speed of the nozzle with the greatest radial length of discharge of water occurring when the nozzle is travelling at its slowest rotational speed.

Abstract: A rotary, impulse water sprinkler having a rotatable water dispensing head includes a water nozzle for directing a stream of water with a movable splash plate extending over the outlet of the nozzle to selectively deflect the water stream issuing from the nozzle to control the distance that the water stream will project from the water nozzle outlet. The impulse water sprinkler has a pivotally mounted impulse device with a vane at one end thereof adapted to be selectively disposed in the water stream from the nozzle outlet thereby causing the dispensing head to rotate. A rotation speed control device is operatively associated with the impulse device to control the amount by which the impulse vane is disposed within the water stream.

Abstract: A sprinkler body, to be anchored in the ground or to some structure, includes a chamber and a fluid inlet to the chamber. A rotatable head assembly mounted on the body includes a ring gear within the chamber and an external head with a laterally directed nozzle for directing a stream of fluid to cover a selected area around the sprinkler. A fluid operated motor within the body chamber, driven by the fluid passing through the sprinkler, drives the ring gear through reduction gearing. A Variable flow control valve consists of a slide mounted in the head for controlling the flow of fluid to the nozzle. A programmed cam is mounted on the body and a cam follower mounted on the valve slide follows the cam to vary the valve opening in relation to the rotational position of the head relative to the body. The valve controls the volume and throw of the fluid stream so that the sprinkler covers uniformly an area of irregular noncircular configuration.

Abstract: A rotary sprinkler comprising a base, a stem mounted on the base for rotation relative thereto, the stem having an inlet for receiving a pressurized water supply, a water discharge nozzle mounted on the stem and being rotatable together therewith relative to the base, water driven drive apparatus for rotating the stem relative to the base, selectably positionable deflector apparatus for engaging a stream of water emitted by the nozzle for determining the maximum radius of the stream, and cam apparatus for operating the deflector apparatus and including manually settable cam apparatus for selecting an overall size and pattern of sprinkler stream coverage, and second cam apparatus for determining the desired sprinkling pattern as a function of the azimuthal orientation of the nozzle.

Abstract: A rotary sprinkler of the impact type having a manually settable mechanism for both selecting and displaying an overall pattern configuration of sprinkler stream coverage. The manually settable mechanism comprises two concentric abutting surfaces, one being rotatable and the other being fixed relative to the sprinkler stem. The surfaces in combination indicate the pattern configuration. The rotatable surface includes a cam which engages a first or a second cam follower on a water stream deflector assembly to provide a first or a second patterned configuration of sprinkler stream coverage.

Abstract: A discrete device attachable to a rotary sprinkler head for varying the water pressure therein to constrain the water distribution to produce a desired irrigation pattern. The sprinkler head attachment-device includes a housing having an intermediate wall partitioning the housing into upper and lower water chambers with an orifice therebetween. A spindle having a cam rotatable with the sprinkler head is mounted within the upper chamber. A cam follower is pivoted into engagement with the cam by means of hydraulic pressure. A valve key portion of the cam follower constricts the flow of water through the orifice in a variable manner controlled by the shape of the cam whereby the desired spray pattern is achieved.

Abstract: An improved range controlled rotary sprinkler of the type having an impact arm-nozzle assembly including a bearing spring mounted on a bearing nut-sleeve assembly. The improvement includes a cam plate, having an outer contour of desired shape, which is horizontally and rotatably mounted on the nut-sleeve assembly, and a lever with deflector and cam follower. The bearing spring is mounted over the cam plate to place a downward bias on the top surface of the cam plate. The cam plate is provided with a downwardly extending tab which is operable to engage a selected side of the nut-sleeve assembly. The cam plate may be positioned to control the directional range of water spraying from the nozzle by retracting the cam plate against the bearing spring, rotating the cam plate, and releasing the cam plate. The cam follower follows the contour of the cam plate to vary the pitch of the deflector to control the range of spray.

Abstract: A sprinkler for irrigating a square or other polygonally-shaped land area with the sprinkler including a unique structure which will accurately distribute an equal quantity of water on each increment of land area being irrigated. The sprinkler includes a rotatable nozzle in which the speed of the nozzle is varied by a gear drive mechanism which receives its power from a water powered turbine device. The rotational speed of the nozzle is slower when irrigating corner area of the land area being irrigated and faster when irrigating intermediate straight-sided portions of the land area with the nozzle including a diffuser which becomes operative to reduce the length of trajectory of the water being discharged when the sprinkler is irrigating the intermediate straight-sided portions of the land area being irrigated.

Abstract: A lawn sprinkler system has a plurality of sprinkler heads connected to a common water supply line. The sprinkling or irrigation, the rate of rotation and the contour of the area sprinkled all are controlled at each sprinkler head. A timer valve associated with a manually adjustable control setting regulates the sprinkling cycle at each head in response to rotation of the head, following which water is bypassed to the next sprinkler head in succession. Further, each sprinkler head contains a rotatable nozzle assembly which is adjustable to provide a spray pattern which will conform to different contours or areas to be sprinkled by each head independently of the other heads in the line in such a way as to afford the greatest possible water efficiency.