Abstract: A flow control device can be implemented to include an riser, a control valve, a simplified retaining rod, and a ball. The riser can include multiple threaded segments, one or more predetermined breakaway points, and a predetermined length and diameter. The control valve can include a first threaded valve end for detachably connecting to the riser, a second threaded valve end for detachably connecting to a supply line, and a ball housing integrally connected to the first and second valve ends. The ball housing has a predetermined internal housing diameter. The ball is enveloped inside the ball housing, and the ball diameter is smaller than the internal housing diameter and larger than a first opening between the first valve end and the ball housing and a second opening between the second valve end and the ball housing. The retaining rod physically prevents the ball from obstructing the first opening.

Abstract: A flow shut off or throttling valve is provided in a sprinkler nozzle housing to enable a nozzle to be changed without having to turn off a flow pressure source. The valve intersects a flow path through the nozzle housing and has an opening such that when the opening is aligned with the flow path, a flow stream can flow unobstructed through the flow path. The valve is movable between a fully open position in which the opening is aligned with the flow path and a closed position which blocks the flow stream from flowing to a nozzle disposed at an outlet passage of the flow path. The valve may be constructed to be either slidable or rotatable between the two positions, and is actuated by a gearing arrangement which is operable at the exterior of the nozzle housing. The external valve actuator may function as a physical barrier to retain the removable nozzle in the nozzle housing when the valve is open and to disengage the nozzle when the valve is closed.

Abstract: A convection type discharge-irrigation pipe comprises an outer pipe, an inner pipe and a joint. The inner pipe is disposed in the outer pipe. Between the inner and outer pipes is defined outer discharge-irrigation channels, and an inner discharge-irrigation channel is defined in the inner pipe which can be triangle-shaped or rectangle-shaped in cross section. In a bottom of the outer pipe is defined a plurality of apertures. In both lateral surfaces and a bottom of the inner pipe is defined a plurality of apertures. The apertures defined in the lateral surfaces of the inner pipe enable the inner discharge-irrigation channel to be in communication with the outer discharge-irrigation channels. The apertures in the bottom of the inner pipe are aligned with the apertures in the bottom of the outer pipe. Thereby, such a discharge-irrigation pipe has the double function of discharging and irrigating water.

Abstract: A riser seal cartridge for an irrigation sprinkler. The cartridge is formed of a rigid self support shell, and a sealing member formed of a resilient material covering the shell in areas which provide the seal. The sealing member includes a first portion which seals the top end of the sprinkler body, a second portion which seals an outer surface of the riser, a third portion which connects the first and second portions, and a fourth portion extending from the third seal portion which provides a seal for the support shell lower end portion. The first seal portion provides a high pressure seal to prevent leakage when the riser is in a fully extended position; and the second seal portion provides a low pressure seal during pressure build-up as the riser is extending.

Abstract: A sprinkler comprises a nozzle, a turbine and a gear train reduction. The gear train reduction has an output stage that is coupled to the nozzle. The turbine is located between the nozzle and the gear train reduction and is coupled to an input stage of the gear train reduction.

Abstract: A method of fire prevention/extinguishing for an aircraft runway is provided where the method includes: providing a supply of fire preventing/extinguishing chemical; disposing a piping system beneath a top surface of the runway and having an inlet in communication with the supply and an outlet in communication with the top surface; and delivering the fire preventing/extinguishing chemicals from the supply through the piping system and outlet to the top surface.

Abstract: An in-ground sprinkler serviceability apparatus that provides a debris free environment for ease of replacement of an in-ground sprinkler head. The sprinkler serviceability apparatus couples to the threads of a sprinkler pipe, expands to provide a sprinkler head receiving section, a seal against the underside of the sprinkler head, and a tapered upper surface. Any debris would be washed away from the sprinkler head serviceability apparatus tapered upper surface when the sprinklers are on, rain, etc. The seal would ensure against any debris falling into the sprinkler head receiving section. Weep holes can optionally be incorporated into the sides or base of the apparatus. The top can be a single section, fabricated in two sections, or be designed to receive a common clay sprinkler donut.

Abstract: A plant irrigation, oxygenation, and feeding device includes an elongated tubular frame having a sidewall and a cap positioned on each end. The sidewall includes a plurality of apertures dimensioned to substantially prevent ground water exterior to the tubular body from entering an interior of the body while permitting the passage of air and water from the interior of the tubular frame to the exterior of the tubular frame.

Abstract: An irrigation sprinkler is for use in distributing water to an area of vegetation, and has a rotatable nozzle for dispersing the water by rotation of the nozzle. A magnet is coupled or connected to the nozzle and rotates synchronously with the rotation of the nozzle. A sensor unit is disposed adjacent to the nozzle and detects a magnetic field generated by the magnet during nozzle rotation to generate a signal indicative of the speed and direction of rotation of the nozzle.

Abstract: A sprinkler head housing for allowing access to sprinkler heads and shafts for maintenance and repair. More particularly, the present invention relates to a device which allows for, and encloses, a working space around underground sprinkler heads. The device is placed around a sprinkler shaft in the ground and the plant material is placed on its outside. The top of the sprinkler head sits above the device. When the sprinkler needs to be accessed, the top of the device can be removed and an open interior space remains where a user can place his/her hands and/or tools to repair or replace a sprinkler head. This invention may be installed when the underground sprinkler system itself is first installed or alternatively may be installed at each sprinkler head as needed.

Abstract: A stream nozzle resides between a water source and a sprinkler nozzle and provides a stream of water for watering a bush, shrub, or tree. The stream nozzle may either reside between a fixed height riser and a nozzle, or under the nozzle of a pop-up sprinkler. In the case of a fixed height riser, the stream nozzle may be attached to an adapter or directly to the riser. In the case of a pop-up sprinkler, the stream nozzle is preferably attached to an independently rotatable collar below the nozzle. The stream nozzle is preferably adjustable in elevation angle and in azimuth angle.

Abstract: A handheld pop-up sprinkler riser-clamp for allowing sprinkler heads to be held in upright raised positions for maintenance work. A plastic block can have a side U-shaped cut-out with a continuous slot therebetween. A midportion of the U-shaped slot can have a widened opening that is greater in diameter than the rest of the U-shaped slot. The ends of the U-shaped cut-out can be held together with a screwable member. In operation the widened opening can be slipped over the raised head of the sprinkler head, and then the narrow portion of the clamp member is slid upon the exposed barrel neck of the sprinkler head and snapped into place so that the clamp holds and restricts the sprinkler head from moving back into its' base. The screwable fastener can adjust the width opening of the U-shaped slot as needed for different diameter necks.

Abstract: A deicing apparatus may include a reservoir containing a deicing agent, a distribution network, and at least a first nozzle, for deicing a surface, such as a sidewalk. In one embodiment, at least one or more of the reservoir or distribution network is located underground and at least one or more of the reservoir, distribution network, and nozzle is operatively fixed with respect to the associated surface. The apparatus may further be provided with pumping means for pumping the deicing agent through the apparatus.

Abstract: An irrigation system has a water distribution system, a controller, and a pet monitoring system. The controller may modify an irrigation setting of the water distribution system based on a pet elimination signal from the pet monitoring system. The pet elimination signal may correspond to an event such as a pet urination event.

Abstract: A hydro-thermo irrigation mat (10) is comprised of a base sheet (11), a water-permeable root-shielding top sheet (12), and a capillary mat (15) of absorbent material therebetween. One or more flat pliable drip tapes (18) are loosely disposed in spaced-apart relationship between the top sheet (12) and the capillary mat (15). Hot water convection tubes (25) are disposed co-axially with the drip tapes (18) but between the base sheet (11) and the capillary mat (15). The drip tapes (18) are connected to a water supply line (22) and the hot water convection tubes (25) are secured to a hot water supply line (28). Water within the mat is heated and distributes heat from the hot water convection tubes (25) substantially throughout the mat.

Abstract: A sprinkler guard includes a hollow protector body adapted for being secured at the ground to encircle a sprinkler within a protector cavity and a retention slot formed at a bottom portion of the protector body and upwardly extended from a bottom opening edge of the protector body. The protector body is adapted for riding at an underground pipeline to retain the sprinkler within the protector body in position without blocking a sprinkling angle of the sprinkler within the protector cavity, wherein the retention slot is adapted for the underground pipeline passing through to let the sprinkler receiving within the protector cavity when the bottom portion of the protector body is inserted into the ground.

Abstract: The present invention includes a unique irrigation sprinkler system with a unique sprinkler head design; a unique method of defining the planted area to be served by the sprinkler head; a unique method for determining when that planted area needs to be watered; a unique way of providing even coverage throughout the planted area when being watered; the ability to use one sprinkler head to individually water multiple, non-overlapping planted areas; a unique way of addressing multiple sprinkler heads in the same sprinkler system; and a unique method for remotely determining the integrity of the sprinkler system.

Abstract: A sprinkler support for the in-ground sprinkler heads includes a base at the lower position, a sidewall extending vertically ascending from the base, a clamping structure disposed at the sidewall of the sprinkler support to secure the sprinkler head, a cushioning structure capable to absorb physical stresses, and anchoring structures holding the sprinkler support with respect to the soil. The sprinkler support accommodates a variety of different size of sprinkler heads by having an adapter, by cantilever fingers extended from the sidewall upwardly or by constructing with two halves, wherein each half comprises the base and sidewall.

Abstract: A method for cleaning a pool surface is carried out by structure having a protruding nozzle assembly mounted in a side wall of a swimming pool in communication with a source of water for ejecting through a nozzle of a nozzle housing a stream of water at a predetermined angle relative to the adjacent side wall surface. During each erection and retraction of the nozzle housing precipitated by initiation and cessation of water flow to the nozzle assembly, the nozzle housing rotates incrementally to provide a plurality of streams of water defining a fan-like area from each nozzle as such nozzle comes into fluid communication with an opening in a cover enclosing the nozzle housing. Each nozzle is canted to a different angle above the adjacent pool surface to assist in cleaning sloping parts of the side wall/bottom surface junction and to assist in cleaning any adjacent structures extending from the side wall.

Abstract: A protective sprinkler head housing for allowing access to sprinkler heads and shafts for maintenance and repair. More particularly, the present invention relates to a device which allows for, and encloses, a working space around underground sprinkler heads. The device is placed around a sprinkler shaft in the ground and the plant material is placed on its outside. The top of the sprinkler head sits above the device. When the sprinkler needs to be accessed, the top of the device can be removed and an open interior space remains where a user can place his/her hands and/or tools to repair or replace a sprinkler head. This invention may be installed when the underground sprinkler system itself is first installed or alternatively may be installed at each sprinkler head as needed.

Abstract: A sprinkler having an adjustable spray pattern is disclosed. The sprinkler may include a housing. The housing may include an inlet portion disposed to receive water and an outlet portion. The outlet portion may include a first outlet aperture and a second outlet aperture. The housing may include a cam disposed upstream of the first and second water outlet apertures. The cam may be rotated to a first position and a second position. The cam may include a first open portion that is rotatable about a cam axis. The cam may include a second open portion that is rotatable about the cam axis. The cam may further include a third open portion that is rotatable about the cam axis.

Abstract: A sprinkler includes hollow tube with a plurality of apertures and a plurality of nozzles are respectively inserted through the apertures. Each nozzle is connected to a bellow which is engaged with the aperture. A guide member is rotatably mounted to the hollow tube and includes a plurality of inclined slots in which the nozzles are movably engaged. The positions of the nozzles are adjusted by rotating the guide member so as to have different patters of watering.

Abstract: The invention is directed to a sprinkler body having a side inlet and improved strength and durability. The side inlet is reinforced with additional structure at a cylindrical wall defining the side inlet. The structure may include a reinforcement rib located within the sprinkler body and intersecting the side inlet. The structure may include a plate located within the cylindrical wall, and the plate may include a collar and/or a crosspiece spanning the side inlet. The structure permits passage of water therethrough and serves to reinforce localized weakened portions or stress concentrators of the side inlet or the sprinkler body.

Abstract: A device for restricting water flow through a conduit in a landscape sprinkler system, wherein the conduit comprises a hollow pipe having an interior wall, the device comprising a generally rigid disc having an external periphery shaped to conform to the interior wall of the conduit; attachment means for frictionally securing the disc traverse to the interior wall of the conduit, and, at least one aperture in the disc to permit water flow therethrough, wherein the total area of any apertures in the disc are from about 1% to about 40% of the cross-sectional area of the disc.

Abstract: A sprinkler includes an outer case and a riser mounted for reciprocation within the case. The riser supports a nozzle, an impeller, and a drive linkage connecting the nozzle and the impeller. A diaphragm valve is mounted in outer case beneath the riser and includes a valve member vertically reciprocable within a valve support housing to engage and disengage a valve seat. The valve seat can reciprocate relative to the valve support housing to reduce mechanical loading.

Abstract: A length adjustable conduit has a hollow tubular body and a hollow tubular shaft coaxially disposed in fluid tight communication with the hollow tubular body. The conduit further includes an adjustment mechanism for adjusting the combined length of the tubular body and tubular shaft.

Abstract: A spray head provided with a plurality of nozzles defined by a base and a deflector cap. Each nozzle is provided with a deflector portion or nozzle plate for directing an upward traveling fluid in an outward direction. Furthermore, the deflector portion may be provided with steps or vanes for altering and varying the flow characteristics of a fluid spray pattern exiting the nozzle. In this manner, different portions of the fluid spray pattern may be projected to varying distances so that the fluid may cover an area having generally straight boundaries and having one or more right angles. Furthermore, the fluid spray pattern may be used to cover a triangular area. In this manner, overspray is reduced. The areas covered by independent nozzles of the spray head may be proximally located by their arrangement within the spray head so as to minimize overlap of the areas.

Abstract: An automatic lift faucet includes a hydraulic cylinder vertically mounted under a working top, the hydraulic cylinder having an inlet. A lifting faucet is mounted in motion fitting connection within the hydraulic cylinder and includes an inlet and a faucet outlet. A lifting piston is attached to the lifting faucet for controlling fluid communication between the hydraulic cylinder and the lifting faucet inlet. An accumulator cylinder is mounted to the bottom end of the lifting faucet and includes a baffle-plate, a valve stern and left and right tow pistons to thereby divide the accumulator cylinder into three sub-chambers. The accumulator cylinder also includes three through-holes, one of each communicating with one of each of the three sub-chambers. A pressure release valve selectively controls fluid communication to the through-holes and to the hydraulic cylinder inlet via first and second branch pipes.

Abstract: A sprinkler includes a drive mechanism mounted in a riser that rotates a nozzle at the top of the riser. The drive mechanism enables a user to select between oscillation of the nozzle through an adjustable arc and uni-directional full circle rotation of the nozzle.

Abstract: A tee valve includes a primary conduit configured to be connected to a water flow conduit. It includes an outflow tube that collects a portion of the water flow and directs it toward a fertilizer feeder along a secondary water flow path. An inflow tube connects to the primary conduit downstream from the outflow pipe to return the secondary water flow to the primary water flow path, with the secondary water flow return water now including a concentration of fertilizer or other water additive. In this fashion, any irrigation system can be used as a combination fertilizer delivery system.

Abstract: An automated irrigation and chemical treatment system comprising a user input device adapted to communicate with a control unit; a mixing chamber adapted to communicate with the control unit and connected to a water supply and chemical canisters, wherein each canister has a sensor to monitor fluid level therein, and control valves for connecting the mixing chamber to a network of pipes. Sprinkler heads connected to the network of pipes each include, a control valve adapted to control fluid flow to a water delivery nozzle by an electro magnet controlled rubber coated ferric ball closure member. The sprinkler heads include water and chemical saturation sensors and the sprinkler heads also communicate with the control unit via wireless transceivers. Multiple zones covered by the system may be treated according to predetermined schedules.

Abstract: The present invention is a double curved surface deflector system for rotary sprinklers providing for a 360-degree rotation using both clockwise and counterclockwise movements. A spray coupler directs water in forward and rear directions. The forward direction is deflected by an inward facing deflector that directs the water across a curved surface projects the water in the reverse direction with an adjustable water elevator for extended lift. After the sprinkler head rotates until the selector hits an adjustable stop, the inward facing deflector then pivots the sprinkler head in the opposite direction for the remainder of the coverage.

Abstract: An improved irrigation spray head for use with pressurized water to produce a generally 360° spray pattern is provided. The spray head has a first channel that provides a water flow path in a generally vertical direction from the distal end of the spray head body to a main exit port. The spray head body includes a cavity having a geometry that, along with the first channel and the main exit port designs, causes the pressurized water to disperse radially outward away from the spray head body in the generally 360° spray pattern. A plurality of secondary channels provides secondary water flow paths from a plurality of interior ports in the cavity to a plurality of sidewall exit ports. The secondary channels result in a water flow out of the sidewall ports at a reduced water velocity thereby providing enhanced, close-in irrigation coverage.

Abstract: A flow shut off or throttling valve is provided in a sprinkler nozzle housing to enable a nozzle to be changed without having to turn off a flow pressure source. The valve intersects a flow path through the nozzle housing and has an opening such that when the opening is aligned with the flow path, a flow stream can flow unobstructed through the flow path. The valve is movable between a fully open position in which the opening is aligned with the flow path and a closed position which blocks the flow stream from flowing to a nozzle disposed at an outlet passage of the flow path. The valve may be constructed to be either slidable or rotatable between the two positions, and is actuated by a gearing arrangement which is operable at the exterior of the nozzle housing. The external valve actuator may function as a physical barrier to retain the removable nozzle in the nozzle housing when the valve is open and to disengage the nozzle when the valve is closed.

Abstract: A sprinkler head vegetation shield that includes a sloping wall defined by a single-piece curved plate. A lip extends horizontally away from the wall along an upper perimeter thereof for supporting the shield adjacent a sprinkler head without attachment thereto. A notch is located substantially near a lower perimeter of the sloping wall and configured to accommodate movement of the sprinkler head relative to the plate.

Abstract: An automatic irrigation system having a simplified structure can intermittently supply water (and liquid fertilizer) required by farmer products under water saving conditions depending on the weather condition of the day independent of the size of an irrigation area. Water from a water source is pumped by a motor pump driven with electric power generated by a solar panel and stored in a storage tank. When a predetermined amount of water is stored in the tank, a water draining device continuously drains the stored water. This cycle is repeated in proportion to an amount of solar radiation incident on the solar panel. The water is then guided to the irrigation area with a tube irrigation system.

Abstract: A revolving lawn sprinkler comprises a rotary guide plate by which the water flow is so controlled as to actuate a lobed wheel, which in turn actuates a rotary disk via a transmission mechanism. A nozzle is mounted on the rotary disk and is provided with a movable joint. The rotary guide plate is forced to change its revolving direction at such time when a projection of the rotary disk comes in contact with a locating block of a top cover of a housing of the lawn sprinkler.

Abstract: An irrigation unit (20) for irrigating an area (12) with a fluid (19) from a fluid source (18) includes a housing (200), a nozzle (220), one or more electronic components (221), and a unit control system (240). The nozzle (220) is secured to the housing (200) and the nozzle (220) is in fluid communication with the fluid source (18) so that fluid (19) from the fluid source (18) is transferred to the nozzle (220). The unit control system (240) can perform a self-test on the irrigation unit (20) to make sure that the irrigation unit (20) is functioning properly. Additionally, the irrigation unit (20) can include a cleaner (259u) that is coupled to the housing (200). The cleaner (259u) can clean one or more electronic components (221) that are part of the irrigation unit (20).

Abstract: A sprinkler head having a deformable member forming a collar is disclosed. The deformable member allows the sprinkler head to resist entry of foreign grit or matter within the sprinkler head, and allows the sprinkler head to eject or force out foreign matter from within the sprinkler head. The sprinkler head may be a spinning sprinkler head including a vane deflector, and the spinning sprinkler head may include a portion that shifts in response to being struck by water such that a braking mechanism is engaged in response to the force of the water. When water flow ceases, the spinning head may shift towards the deformable member so that a portion of the spinning head is received within the deformable member to restrict foreign matter from entering the sprinkler head.

Abstract: An irrigation sprinkler unit includes a tubular housing enclosing a speed reducing drive which is driven by a water actuated turbine wheel and rotates a rotary nozzle head at a substantially slower speed. The drive also rotates a tubular valve member within an annular valve body within the housing, and the valve member and valve body have cooperating radial ports which automatically and continuously vary the flow rate of water through the housing for continuously varying the radial distance of a water stream discharged from the nozzle head.

Abstract: A method of detecting the actuation of a sprinkler involves sensing a first fluid pressure at a first flow cross section, in one of the sprinkler and a conduit in which the sprinkler is mounted, sensing a second fluid pressure at a second flow cross section, in the sprinkler, wherein said first flow cross section is larger than said second flow cross section, and comparing the fluid pressures sensed at the first and second flow cross sections in order to detect a change in the relation of the fluid pressures due to actuation of the sprinkler, and thereby detect actuation of the sprinkler. The fluid pressures are sensed by ports in the sprinkler, or by one port in the sprinkler and one port in the conduit, and at least one transducer connected to the ports, and output signals from the transducer are sent to a computer or other recording instrument.

Abstract: A side ingress water supply conduit arrangement for use with a height adjustable riser for a sprinkler head that reduces labor required for installation of the water supply conduit. The housing of a height adjustable riser is modified to include an integrally molded conduit, which delivers pressurized water to the bottom of an adjustable riser housing by introducing the water supply to the housing via the side of the housing. This allows the conduit to be located closer to the surface of the ground by installing conduits in a shallow burial location slightly below the top of the riser housing. Therefore, less earth removal and replacement is required, which reduces the labor necessary to install a sprinkler system. Another embodiment creates a modified conduit or tube shape, such as a “J” that works with the individual components of the adjustable riser as disclosed in my U.S. Pat. No. 6,629,648.

Abstract: A sprinkler head guard includes an inner casing that has a cylindrical shape, and vertically aligned top and bottom openings. A first coupling is conjoined to the inner casing and has a threaded inner surface. A second coupling has axially offset lower and upper ends having threaded outer surfaces. The upper end is mated with the first coupling. The lower end is mateable to a water supply line. An outer casing is slidably and telescopically engageable with the inner casing, and has a bore that becomes situated about the first coupling. The outer casing has a top lip that is flanged outwardly and includes rectilinear creases formed therein. Each crease defines a line of weakness, allowing a user to snap off a top lip portion. The inner and outer casings are shaped for housing a sprinkler head therein. A mechanism is included for locking the casings together.

Abstract: An above-ground sprinkler may have a head that rotates about an angle determined by the relative angles between a pair of arc adjustment rings. Rotation of the head may be driven by a drive mechanism with a rotor rotationally driven by fluid flowing to the head. The drive mechanism may have a valve disposable in two positions to control flow to the rotor to determine the direction in which the rotor rotates. A reduction gear drive may transmit torque from the rotor to the head to cause the head to rotate. The head may have a cover with an outlet aperture and a flow control member that rotates within the cover to dispose any of a plurality of nozzles in alignment with the outlet aperture. A deflection screw or a slider with a plurality of deflectors may be used to provide variable deflection of water sprayed from the outlet aperture.

Abstract: A seal arrangement for a rotatable shaft that is secured at one end thereof in a housing, and that mounts a water distribution plate on an opposite end thereof, the shaft seal comprising a flexible annular member having a radially inner portion including at least one tapered lip extending in one direction along the shaft and adapted to engage the shaft, and a radially outer portion seated on a support in the housing; and at least one retainer overlying the seal and holding the seal in position on the support, the at least one retainer having a radially inner portion that substantially encloses the at least one tapered lip.

Abstract: A spray shield apparatus for shielding against spray from a sprinkler head and which can be quickly and easily attached and detached from a sprinkler standpipe or riser. The spray shield apparatus (20) has a semi-cylindrical body (22) enclosed within a circular segmental top end (21) and a circular segmental bottom end (24) and that attaches to a riser (29) via a snap-in attaching hole (26) integrated within said circular segmental bottom end. Configured into said snap-in attaching hole is a gripping aperture (27) that engages said riser via friction fit and affixes said spray shield in position. Additionally, an orienting shelf (25) on the interior of said semi-cylindrical body serves to prevent the spray shield apparatus from being nudged forward and interfering with a spray pattern.

Abstract: Irrigation systems, moisture sensors and related methods having a sensor embedded in the ground to sense moisture and help control watering. The sensor is responsive to capacitance changes from ground moisture variations. The sensor uses spaced insulated electrodes which are mounted within a granular filled chamber within a water-permeable shell. The sensor is mounted as part of a ground unit that also includes a high frequency driver that excites the sensor. The ground unit further has a detector circuit which produces a moisture indicating signal based on the capacitance which varies with ground moisture. Also disclosed are controllers that electrically isolate the ground units so that reliable moisture signals can be obtained and used to control irrigation. The controllers can be configured to provide multiple zone operation using a shared controller having shared or independent moisture adjusters.

Abstract: A telescoping waterway for adjusting the height of a firefighting monitor is disclosed. The telescoping waterway includes a hollow outer tube, a hollow inner tube within the hollow outer tube, and an actuator that moves the hollow inner tube relative to the hollow outer tube, wherein the hollow inner tube can be maintained in at least one intermediate position between a retracted position and a fully extended position.

Abstract: A sprinkler system including at least one sprinkler head and a source of supply water having a control device located in a fluid flow line between the source of supply water and each sprinkler head for automatically shutting off the flow of supply water through the sprinkler head in response to a predetermined increase in force of fluid flow. The control device includes a housing having an interior flow path with an upstream opening and a downstream opening. The control device includes a ball valve assembly in the housing. The ball valve assembly includes a valve seat at the downstream opening and a cooperating compressible valve ball which is seated in the valve seat when actuated. During normal operation the ball is located at the upstream end of the housing behind an adjustable ball stop assembly formed by a series of fixed and adjustable stops which form an adjustable size opening.

Abstract: A pop-up sprinkler includes a base member positionable above a ground surface and a sprinkler head having a substantially cylindrical conduit provided with a proximal end portion in fluid communication with a water supply source. The sprinkler head further has a distal end portion having a plurality of tapered apertures randomly spaced thereabout for receiving a first array of water. The distal end portion further has a slot formed therein for defining a ledge along a select portion of the conduit. The sprinkler further includes a plurality of diverters slidably positionable within the slot. The plurality of diverters include a plurality of flange portions for stopping the plurality of diverters from being raised beyond a predetermined position. The ledge portion receives the plurality of flange portions so that the plurality of diverters can be effectively supported at non-operating positions.