Abstract: A full coverage area spray device has an oscillation chamber. Chamber end plates have a diameter D and the distance between the inlet and outlet apertures is L and ratio L/D determines the spray pattern and is adapted to support a basic toroidal flow pattern that remains captive within the confines of the oscillation chamber. The toroid spins about its cross-sectional axis and being supplied energy from the jet of liquid issued into the oscillation chamber. The toroidal flow pattern has diametrically opposed cross-sections which alternate in size to cause the jet to move in radial paths and also in tangential direction and thereby choose a different radial path at each sweep, whereby there is a random sweeping of the jet issuing from the outlet aperture over the area.

Abstract: A reversible, adjustable arc sprinkler head comprising a sprinkler body incorporating a fixed nozzle; a spray plate mounted on one end of a support cage for rotation with the support cage in one or the other of two opposite directions about a first axis arranged coaxially with a stream emitted from the nozzle, and for back and forth tilting motion about a second axis perpendicular to the first axis, an opposite end of the support cage secured to a sleeve rotatably mounted in the sprinkler body, the spray plate having a pair of substantially parallel grooves for selectively receiving the stream, wherein the direction of rotation of the spray plate about the first axis is determined by the tilting motion of the spray plate about the second axis; and a shift lever formed with an aperture sized to receive the stream, the shift lever mounted at one end on the sleeve for rotation about a third axis parallel to the first axis, the shift lever enabled to shift the stream from one of the pair of grooves to the other o

Abstract: The invention is an automated sprayer for spraying the walls of a bath and shower enclosure with a cleanser. The sprayer has a housing that can be mounted inside the shower enclosure and that defines a tray in which an inverted bottle of cleanser is stored. The bottom of the tray has a tube extending downwardly along a longitudinal axis through which the cleanser can pass. A motorized head disposed beneath the tube can be rotated about the axis for metering cleanser from the bottle and spraying cleanser outward. The sprayer includes timer circuitry that delays commencement of a spray for a set time and automatically stops spraying after a predetermined period. The sprayer also includes a system for signaling the beginning of a spray cycle including audio and visual alarms. An automated method of cleaning the shower enclosure is also disclosed.

Abstract: A reversible, adjustable arc sprinkler head includes a sprinkler body incorporating a fixed nozzle; a spray plate mounted for rotation in one or the other of two opposite directions about a first axis arranged coaxially with a stream emitted from the nozzle, and for back and forth tilting motion about a second axis perpendicular to the first axis, the spray plate having a pair of substantially parallel grooves for selectively receiving the stream, depending on a direction of tilt of the spray plate; and a shift lever formed with an aperture sized to receive the stream. The shift lever is mounted at one end for rotation about a third axis parallel to the first axis, and is enabled to shift the stream from one of the pair of grooves to the other of the pair of grooves to thereby reverse the direction of rotation of the spray plate.

Abstract: A nozzle gate valve is provided in an irrigation sprinkler for quick and easy shut-off of water flow to a sprinkler spray nozzle. The gate valve is mounted within a sprinkler spray head at an upstream side of the nozzle for displacement between open and closed positions respectively permitting and preventing waterflow to the nozzle. In the preferred form, the gate valve has a generally conical shape and defines an elbow-shaped flow path movable between the open position aligned with the nozzle for normal water supply thereto, and the closed position misaligned with the spray nozzle to prevent water flow thereto. In the closed position, the spray nozzle can be removed and/or replaced, or other sprinkler adjustments can be performed, without requiring a main system water supply to be turned off.

Abstract: A speed limiting mechanisms for turbine-driven fluid distribution apparatus usable with compressible fluid such as compressed air and incompressible fluid such as water. Dynamic viscous damping of the turbine output power train is used to control the rotational speed of the turbine. This prevents overspeeding when the turbine is air driven, and also when the turbine is water driven, under abnormal conditions such as blockage of a bypass area designed to control the turbine speed by limiting flow to the turbine. The same mechanism can be used to impose a lower rotational speed in the turbine during normal operation in conjunction with a turbine optimized for lower speed operation to reduce the required gear reduction in the power train.

Abstract: A controlling device for a sprinkler includes multiple seals detachably received in the tube in a watertight manner. Each seal has outlets defined in a top face of the seal and passages defined to respectively communicate with a corresponding one of the outlets. Multiple controlling rods are linearly and movably received in the tube to engage with a bottom face of the seals so as to selectively block the communication between the passage and the outlets such that water inside the tube is controlled to be sprinkled out of the tube.

Abstract: A rotary sprinkler having an adjustable arc segment whose angular extent and absolute direction relative to the ground are represented by an arc indicator, which arc indicator may comprise a band whose visible length represents the angular extent and whose position on the sprinkler points to the direction. The sprinkler may have the arc segment adjusted by a movable arc limit stop that is coupled to a toggle member only at drive reversal, and the sprinkler may be converted to full circle operation by raising the arc limit stop relative to a cooperating trip tab. A buckling spring assembly used to shift the drive comprises a compression spring held between two spaced pivot members, and the drive can be built in continuous and intermittent drive versions by replacing a few normal rotary gears with multilated gears. A friction clutch having asymmetric teeth for smooth operation prevents damage to the drive during forced nozzle rotation.

Abstract: A reversible, adjustable arc sprinkler head includes a sprinkler body incorporating a fixed nozzle; a spray plate mounted for rotation in one or the other of two opposite directions about a first axis arranged coaxially with a stream emitted from the nozzle, and for back and forth tilting motion about a second axis perpendicular to the first axis, the spray plate having a pair of substantially parallel grooves for selectively receiving the stream, depending on a direction of tilt of the spray plate; and a shift lever formed with an aperture sized to receive the stream. The shift lever is mounted at one end for rotation about a third axis parallel to the first axis, and is enabled to shift the stream from one of the pair of grooves to the other of the pair of grooves to thereby reverse the direction of rotation of the spray plate.

Abstract: A prostrate water sprinkler includes a base on which one or more spray tubes are disposed. The spray tubes are provided with a plurality of jet nozzles which are arranged in one or two rows along the longitudinal direction of the spray tubes. The jet nozzles can adjust the spray angle thereof by an adjustment member which is mounted on the spray tubes.

Abstract: A cryogenic cleaner for and a method of performing cleaning of a surface that must be substantially free of contaminants has a resiliently mounted nozzle for spraying a cryogenic cleaning medium on the surface. The nozzle is driven in an oscillatory manner at a predetermined amplitude and frequency so the nozzle spray is delivered in a manner to provide pulsing of the spray and to provide as “snow plow” effect on contaminants as the spray delivers the cleaning medium against the surface. The surface is transported past the nozzle, and the cleaning occurs in an enclosed controlled environment.

Abstract: A Pelton type turbine is mounted in a riser of a pop-up sprinkler for rotation about a horizontal axis and drives a bevel pinion gear reversing mechanism through a gear train reduction. One end of a yoke is coupled to a clutch and the other end is moved vertically by an over-center mechanism through a link arm to shift the direction of rotation of a nozzle turret connected to the upper end of a drive shaft. The over-center mechanism includes a pair of levers held together by a single coil spring with trunnions on a first lever pivoting in bearing surfaces of a second lever. An L-shaped actuating arm that extends from the second lever is tripped back and forth by a shift disc engaged by a pair of tabs of a turret coupling assembly.

Abstract: A Pelton type turbine is mounted in a riser of a pop-up sprinkler for rotation about a horizontal axis and drives a central bevel pinion gear through a gear train reduction. Upper and lower bevel gears supported on a vertical drive shaft are simultaneously driven in opposite directions by the central bevel pinion gear. A clutch slides up and down along the drive shaft to engage radially extending teeth formed on its upper and lower sides with complementary teeth formed on the upper and lower bevel gears. One end of a yoke is coupled to the clutch and the other end is moved vertically by an over-center mechanism to shift the direction of rotation of a nozzle turret connected to the upper end of the drive shaft. The over-center mechanism is tripped back and forth by a shift disc engaged by a pair of tabs of a turret coupling assembly.

Abstract: A sprinkler includes a pipe having a number of outlet openings for outward flow of the water, and a number of rings rotatably engaged on the pipe and each having an orifice for selectively aligning with the outlet opening of the pipe and for selectively blocking the outlet opening, such that the outlet openings of the pipe may be selectively opened or blocked by the rings. A housing is engaged on the pipe and has a number of apertures for slidably receiving the actuating ears of the rings to limit the movement of the ring relative to the pipe.

Abstract: An actuator assembly for a rotatable sprinkler head includes a base supported for rotation on a stationary platform assembly, the actuator assembly comprising 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 configured to define two or more arcuate paths of travel for the lever arm, the paths being radially offset relative to the hub; and wherein the lever arm is adjustable to locate the free end in any of the two or more arcuate paths of travel.

Abstract: A high pressure pump (14) supplies cleaning fluid from a reservoir (12) to spray nozzles (20) inside a washing chamber (10). The spray nozzles (20) spray the cleaning fluid over a load to be cleaned. Used cleaning fluid is collected in a sump (30). A sump pump (32) drains the sump. The combination of the high pressure pump and sump pump provides more efficient cleaning of the load and eliminates the requirement for a deep sump beneath the washer. A vertical traveler (22), having a pair of counterbalanced spray arms (24), raises and lowers the spray nozzles counter cyclically; a detergent injection system (50) accurately meters a correct amount of detergent is added to the cleaning fluid; and a filtration device (34) filters suspended material from the used cleaning fluid and uses a portion of the cleaning fluid to clean itself.

Abstract: A mechanism that steers a high energy density output(s) in a shaking motion other than a rotating motion that when translated across a surface evenly affects the surface. One application can be used as an end effector. A pivot on the mechanism induces an angular motion that eliminates the tops and bottoms of the pattern produced by the shaking motion. As a waterjet stripping mechanism which may be an end effector, a nozzle or output manifold with one or more orifices or outputs is attached to a non-rotating tube eccentrically mounted within a rotating tube that shakes the nozzle or output manifold so as to direct the stream of water to the target in a skewed circular pattern.

Abstract: A reversing gear drive system is provided in an irrigation sprinkler for reversibly shifting the direction of rotation of a sprinkler spray head for back and forth part-circle rotation between adjustably set end limits, to sweep an outwardly projected stream of irrigation water through a predetermined arcuate pattern to irrigate a surrounding terrain area and associated vegetation. The reversing gear drive system includes a gear carrier having first and second output gears driven rotatably in opposite directions. A shift mechanism is provided for shifting the gear carrier between forward-drive and reverse-drive positions with the first and second output gears alternately engaged with a ring gear for rotatably driving the spray head in opposite directions. The shift mechanism includes a shift lever and a reverse trip spring for engaging arcuately spaced limit stops mounted for rotation with the spray head.

Abstract: An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an inoperative position, where the sprinkler head is not oscillated.

Abstract: An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an inoperative position, where the sprinkler head is not oscillated.

Abstract: A double rocking sprinkler has a first casting, a second casing coupled with the first casing, a first cover and a second cover covering the first and the second casings, and a first sprinkle plate and a second sprinkle plate disposed in the sprinkler in series. A drive device is disposed in the sprinkler for rotating the first and second sprinkle plates relative to each other.

Abstract: The present invention provides a spray head assembly with a moving spray nozzle that delivers fluid in a substantially uniform spray distribution. The movement of the spray nozzle is a wobbling motion, preferably combined with some rotational motion. The wobbling motion is generated by disposing a wobble inducing member or wobble turbine in the path of the fluid supply. The water flowing over the wobble turbine causes the turbine to wobble. The wobbling turbine then causes the spray housing and nozzle to wobble. The spray pattern produced by the wobbling spray housing changes more or less rapidly so that fluid droplets or streams are directed along arcuate paths rather than at a single point. This type of spray distribution pattern is gentler than many stationary patterns and the unique design of the wobble inducing member does not include complex mechanical parts or significant flow restrictions.

Abstract: In a sprinkling apparatus constructed as a square sprinkler, which has a straight nozzle row with a plurality of nozzles and directionally adjustable nozzle axes, it is possible to tilt the nozzle axes of single nozzles collectively relative to one another. A preferred embodiment has a fan-like sprinkling pattern, the jets of the fan being symmetrically or asymmetrically brought together or moved apart. The fan edges can be adjusted independently of one another.

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: An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an inoperative position, where the sprinkler head is not oscillated.

Abstract: A pop-up rotary sprinkler with adjustable arc limits has an arc adjustment tool engaging member slideably mouted in a guide sleeve in the head of the sprinkler that has a progressively narrowing diameter. The member includes a radially expandable and contrastable collet at the upper end thereof and a pinion gear at a lower end thereof for engaging the teeth of a bull gear for setting at least one of the end limits of the desired arc. When the tool is inserted into the member, it moves downwardly, and a pair of flanges of the tool are locked into slots in the collet. The tool cannot be removed until it is pulled upwardly to permit the collet to expand radially to allow the flanges of the tool to be pulled past a ring at the upper end of the collet.

Abstract: A sprinkler is composed of a nozzle, a tubular body, a first transmission gear set, and a second transmission gear set. The first transmission gear set and the second transmission gear set are mounted on the tubular body such that the first transmission gear set and the second transmission gear set are linked with a drive wheel capable of being actuated by the water pressure, and that an output gear of the nozzle can be so adjusted as to locate at one of the locating holes for sprinkling a specific section of an area intended to be sprinkled.

Abstract: System and process for producing different embodiments of sprinkler assemblies uses two different first housing assemblies, from which one first housing assembly is selected for producing a desired sprinkler assembly embodiment. Each first housing assembly is replaceable with the other and includes an inlet end and a spaced outlet end; the inlet end of each first housing assembly is configured for connection with a source of water under pressure. Each first housing assembly also includes an adjustable flow control mechanism to control the flow of water under pressure through the first housing assembly. The control mechanism may include a manually-actuated moveable valve structure to control water flow rate, or a timing mechanism to select a duration for the water flow. By providing a first housing assembly with a control mechanism that is different from that of the other first housing assembly, the sprinkler assembly embodiment produced will depend upon the first housing assembly that is selected.

Abstract: A wafer cleaning apparatus includes at least one nozzle fixing tube disposed in a wall of a cleaning bath. A plurality of injection nozzles are arranged on the nozzle fixing tube for spraying a compressed cleaning solution toward the wafer. A rotating device rotates the at least one nozzle fixing tube and the plurality of injection nozzles within a predetermined angle.

Abstract: A water jet regulating cap for a water delivery nozzle, for e.g., lawn sprinklers with an oscillating arm, comprises two parts of differing plastic materials tightly fixed together. A first part, formed of a rigid plastic material, has a sleeve-like shape and is attachable to the nozzle in such a way as to be held in an axial direction and revolvable around the axis of the nozzle between two end angular positions. A second part, formed of a soft plastic material, has a cup-like shape with a base through which extends an off-center hole which is selectively alignable with a corresponding off-center hole of the nozzle according to the angular position of the cap with respect to the nozzle.

Abstract: A sprinkler includes a tube rotatably secured in a base for receiving water. A pipe has an extension rotatably secured to the tube and has a number of annular recesses and ports. A number of sleeves are rotatably engaged in the annular recesses of the pipe and each has one or more outlets adjustable to different angular position relative to the pipe for allowing the pipe to be rotated by water flowing out through the outlets. A bar may secure the pipe to the tube for allowing the tube and the pipe to be rotated in concert with each other.

Abstract: A nozzle cone and an oscillating fluid-jet nozzle system capable of producing relatively high-velocity, high-frequency oscillating fluid jets useful in waterjetting and other industrial spray applications. The oscillating fluid jetting apparatus includes a conduit and a follower which is mounted with respect to the conduit. A cam mechanically drives the follower so that the cam moves with respect to the follower. A portion of the conduit is secured with respect to a housing. An inlet block is secured with respect to the housing. An inlet end portion of the conduit is secured with respect to the inlet block. The inlet block has a fluid inlet opening which is in communication with the conduit.

Abstract: A sprinkler system for distributing water from a source substantially evenly over an area of terrain comprises a body defining a passage having an inlet connected to an outlet extending at an angle to the inlet, and a generally circular nozzle plate having a plurality of nozzles therein rotatably mounted at the outlet for selectively positioning a selected one of the plurality of nozzles in alignment with the outlet for distributing a stream of water outward from the housing, and the nozzle plate being selectively rotatable for selectively moving the nozzle plate to a selected nozzle position.

Abstract: A sprinkler unit comprises a housing having an inlet for connecting to a source of water, an outlet, passage means connecting the inlet to the outlet, a nozzle detachably mounted in the outlet for distributing a stream of water outward from the housing, and a valve in the passage selectively operable for selectively stopping flow of water through the passage means to the nozzle and an actuator operable from the exterior of the housing for selectively operating the valve.

Abstract: A rotary sprinkler having an intermittent motion mechanism which includes a driving gear and a driven gear with the driving and driven gears being drivingly engageable. The driven gear has a first set of gear teeth on one level and a second set of gear teeth on a second level. The gear teeth of the first set are axially and circumferentially offset from the gear teeth of the second set. The driving gear has a single driving gear tooth drivingly engageable with the gear teeth of the first set to drive the driven gear and a circumferential surface axially offset from the driving gear tooth and cooperable with the gear teeth of the second set to substantially retain the driven gear against rotation when the driving gear tooth is not in driving engagement with the gear teeth of the first set.

Abstract: A side driving element for an irrigation device with an oscillating arm comprises a casing. Inside the casing there is rotatably housed a turbine rotor having an axis of rotation parallel to that of the oscillating arm of the irrigation device. The rotor powers the oscillating arm. An external mouth connects to a supply conduit of an irrigation liquid. The mouth has an axis lying in a plane orthogonal to the axis of rotation of the rotor, and communicates with an internal rectilinear conduit aligned with the mouth and directed toward the rotor, so that a jet of irrigation liquid supplied by said supply conduit is not subjected to deviations before reaching the rotor.

Abstract: An irrigation device has an arm which is rotatably fastened at its ends to a pair of side elements of the irrigation device, and from one of which elements there extends a driving shaft. The device comprises a cam substantially in the shape of a heart integral with the shaft, a connecting rod coupled to the cam by the of a pair of shoes that engage the perimeter of the cam in substantially diametrically opposite positions. The connecting rod is provided with a slot wherein a guide for the connecting rod is engaged integral with the cam, and a crank integral with arm. The connecting rod can be hinged to the crank in a plurality of positions substantially aligned along a radial direction lying in a plane orthogonal to the axis of rotation of the arm and placed at different distances from the axis of rotation.

Abstract: A water sprinkler of a new type has a spray arm which oscillates about a horizontal axis transverse or perpendicular to the length of the spray arm, in a see-saw fashion, to distribute water to a length of the lawn or garden area. Spray nozzles spaced apart on a distortable, peripheral wall along the length of the spray arm in a linear array are adjustable, by twisting the peripheral wall of the arm, to a circumferentially-arrayed, helical or spiral pattern, to distribute water to cover a selected width of the lawn or garden area. Both the angle of the oscillation and the twist of the wall may be selectively varied or adjusted to select respectively the length and the width of the area to be sprinkled. The twist is adjustably-fixed along and about the flow passage, as by an internal twist-setting arm. Also, the spray arm may oscillate about its center or one end thereof, depending on the oscillation mechanism used.

Abstract: A rotary sprinkler has a step-down transmission between a turbine wheel drive and the sprinkler nozzle, which transmission includes a fixed ring gear having internal teeth coaxial with the drive rotary axis; a planet gear having external teeth engageable with, but fewer in number than, the internal teeth of the ring gear; and an eccentric pin secured to the rotary drive at its rotary axis and having a central axis laterally of the drive rotary axis. The eccentric pin is received within an opening centrally of the planet gear to cause the planet gear to planetate around the fixed ring gear and to rotate around the drive rotary axis at a step-down velocity determined by the difference in the number of teeth between the ring gear and the planet gear.

Abstract: A rotary sprinkler comprising a supporting structure and a sprinkler head mounted for rotational movement on the supporting structure. The sprinkler includes an arc controller for controlling the magnitude of the arc through which the sprinkler head can rotate and an arc adjuster for adjusting the arc controller to thereby adjust the arc through which the sprinkler head can rotate. The arc adjuster includes an arc adjust member mounted for rotation with the sprinkler head and drivingly coupled to the arc controller to adjust the arc through which the sprinkler head can rotate and an arc adjust driver for rotating the arc adjust member. The arc adjust member includes a plurality of seals integral with the arc adjust member and a pointer for providing an indication of one end of the arc through which the sprinkler head can rotate.

Abstract: A rotary drive sprinkler comprising a housing for coupling to an irrigation water supply, a sprinkler spray head rotatably mounted with respect to the housing and flow coupled to supply and a rotary drive mechanism located within the housing so as to be driven by the water supply and a transmission mechanism coupled to the drive mechanism and having first and second, oppositely directed, rotary outputs, there being further provided a reversing mechanism including a stop assembly having stop members arcuately displaceable with respect to each other between a juxtaposed position and a variable spaced apart position, a trip assembly responsively juxtaposed with respect to the stop members so as to be reversibly displaced by successive contacting with the stop members only when the latter are in their angularly spaced apart position, one of the assemblies being rotationally driven by the drive mechanism and a selective coupling responsively coupled to the trip assembly for coupling to one or other of outputs resp

Abstract: A rotary sprinkler including a sprinkler head, a drive motor and a drive train drivingly coupled to the motor and to the sprinkler head so that the motor can impart rotational movement to the sprinkler head. The drive train includes a shifter drivable between first and second positions for reversing the direction of the rotational output of the drive train. A buckling column spring provides the energy to move the shifter between the first and second positions. A one piece seal is used to provide a plurality of separate annular seals as well as to assist in mounting one or more components of the rotary sprinkler.

Abstract: An adjustment structure of a rotary sprinkler, including a rotary seat, a plastic rotary tube body, a rubber pad, several adjustment ball valves and a plastic pressing cover. The rotary seat includes a head portion and a tail portion connected therewith. An adjustment member is disposed on the head portion and formed with a fitting hole and a water-incoming head. The tail portion is formed with a fitting hole. The plastic rotary tube body has a close end and an open end. The rotary tube body is formed with an axial channel and several water-outgoing holes are formed on a bottom of the axial channel. The rubber pad is disposed with several concaves. An orifice is disposed on a bottom of each concave. Each adjustment ball valve has a lower ball portion and an upper post portion. An upward tapered sprinkling hole extends from a center of a top face of the post portion to a bottom end of the ball portion. The plastic pressing cover is formed with several through holes on a surface.

Abstract: An oscillating sprinkler head transmission for alternately driving an output shaft and sprinkler head nozzle to oscillate it with spring bias being provided to prevent the transmission from being placed in an operative position, where the sprinkler head is not oscillated.

Abstract: Unitized sprinkler assembly including a housing assembly having an inlet end constructed and arranged to be connected with a source of water under pressure and a spaced outlet end, a manually adjustable control mechanism carried by the housing assembly, a sprinkler head assembly having an inlet end disposed to receive water under pressure flowing from the outlet end of the housing assembly, a base assembly constructed and arranged to support the assemblies on a ground area to be sprinkled, a structural connection between the sprinkler head assembly and the housing assembly constructed and arranged to enable the sprinkler head assembly to oscillate about an oscillatory axis with respect to the housing assembly, an oscillating mechanism mounted in the housing assembly constructed and arranged to be operated by the flow of water under pressure and connected with the sprinkler head assembly to oscillate the sprinkler head assembly about the oscillatory axis through repeated oscillating head cycles, an adjusting m

Abstract: A pop-up sprinkler including an outer housing defining a water inlet, an inner housing which is raised automatically in response to the supply of water under at least a predetermined pressure, a water driven turbine disposed within the inner housing and driven by water entering the sprinkler via the water inlet, a reducing gear disposed within the inner housing and driven by the water driven turbine and having an output shaft fixed against rotation with respect to the inner housing, whereby operation of the water driven turbine causes the reducing gear to rotate relative to the housing, and a rotatable water outlet fixed to the reducing gear for rotation together therewith relative to the inner housing.

Abstract: A spray tube assembly including a spray tube mounted on the base of an oscillating sprinkler and oscillated by an oscillating control device, and an inner tube inserted into the spray tube and having two symmetrical sets of sector water stoppers mounted around the periphery, the sector water stoppers having respective peripheries extended to different angles, wherein turning the inner tube within the spray tube causes the sector water stoppers to alternatively stop or open the jet nozzles on the spray tubes.

Abstract: A sprinkler (1) has flow control means (10) for producing different flow behaviour during forward and return motion of its sprinkler head (2), so that during forward motion there is a far-extending concentrated jet and during the return motion a spray jet watering the near area and discharged by the same nozzle outlet (11),

Abstract: A wave sprinkler assembly in which the tubular spray assembly comprises a tubular member and one or more elongated strips of flexible material having a series of longitudinally spaced water stream outlets extending therethrough, the strips are assembled with the tubular member by inserting them therein through an end and moving them radially outwardly into an operative position wherein the water under pressure within the interior of the tubular spray assembly acts on the strips to enhance their engagement with the tubular member. The strip provides an annular seal of flexible sealing material extending around the exterior of each of the controllable water stream outlets, and a control member is mounted on the elongated tubular assembly for movement between a full width operating position and a width limiting position. The control member includes a control section associated with each annular seal and the controllable water stream outlet around which it extends.

Abstract: A transmission device having an input shaft and oscillating output gear with an oscillating connection therebetween. The oscillating connection comprising a pivoted gear cage with oppositely rotatable driving gears, the gear cage having a mechanism to pivot it to connect the input shaft and output gear alternately with the driving gears. The oscillating output gear having an adjustment to control the angle of oscillation. A liquid can be directed through the transmission to an oscillating nozzle.