US3921912A - Lawn sprinkler - Google Patents

Lawn sprinkler Download PDF

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Publication number
US3921912A
US3921912A US486587A US48658774A US3921912A US 3921912 A US3921912 A US 3921912A US 486587 A US486587 A US 486587A US 48658774 A US48658774 A US 48658774A US 3921912 A US3921912 A US 3921912A
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United States
Prior art keywords
housing
sprinkler
water
nozzle
rotation
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Expired - Lifetime
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US486587A
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English (en)
Inventor
Jerry R Hayes
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LR Nelson Corp
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LR Nelson Corp
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Filing date
Publication date
Priority claimed from US467555A external-priority patent/US3915383A/en
Application filed by LR Nelson Corp filed Critical LR Nelson Corp
Priority to US486587A priority Critical patent/US3921912A/en
Priority to DE19752517243 priority patent/DE2517243A1/de
Priority to CA225,468A priority patent/CA1035393A/en
Priority to FR7513962A priority patent/FR2345911A1/fr
Priority to GB18759/75A priority patent/GB1508179A/en
Priority to AU80881/75A priority patent/AU484692B2/en
Application granted granted Critical
Publication of US3921912A publication Critical patent/US3921912A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0417—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0432—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine the rotation of the outlet elements being reversible
    • B05B3/0438—Tubular elements holding several outlets, e.g. apertured tubes, oscillating about an axis substantially parallel to the tubular element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/12—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/652—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented
    • B05B15/654—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits whereby the jet can be oriented using universal joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0417—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0432—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine the rotation of the outlet elements being reversible
    • B05B3/0435—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet comprising a liquid driven rotor, e.g. a turbine the rotation of the outlet elements being reversible by reversing the direction of rotation for the rotor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3402—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to avoid or reduce turbulence, e.g. with fluid flow straightening means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00—Fluid sprinkling, spraying, and diffusing
    • Y10S239/01—Pattern sprinkler

Definitions

  • ABSTRACT [211 App! NO: 486,587 A rotary-type lawn sprinkler that reversibly rotatable through any angle.
  • the angle 1s set by means on the exterior of the sprinkler while the reversing is flu- [52] 239/242; 239/1316 1; 239/587; idic and takes place completely within the sprinkler.
  • a 239/590-5 slip clutch allows manual rotation of the sprinkler [51] Int. Cl.
  • Th nozzle is angularly adjustable in a vertical [58] Fleld of Search 239/242, 5905' 1 plane through 80, and the nozzle diffuser is adjustable to provide an infinite number of stream diffusion pat- References Clted terns; adjustment of either can be made during opera- UNITED STATES PATENTS tion.
  • a sprinkler is provided that has none of the above-mentioned drawbacks and that is simple and reliable yet adaptable to almost any terrain, wind, and area conditions to provide effective watering of a desired ground area.
  • a rotary water distributing assembly has a nozzle that is pivotal 80 degrees in a vertical plane even during operation and an eccentric discharge orifice cooperating with a nozzle diffuser that is adjustable to provide an infinite variety of stream diffusions also even during operation.
  • Adjustable stop collars mounted on the outside of the sprinkler housing initiate reversing of the turbine drive and thereby the direction of rotation of the head.
  • the reversing means is fluidic with no chance of dead-centering and thus requiring an exterior manual force to get it out of a dead-center position.
  • the water supply shaft of the water distributing assembly according to the teachings of the present invention for providing water to the nozzle is splined onto the output carrier of the reduction gears and also serves as the nexus for drive and reversing.
  • the uppermost portion of the planetary reduction gearing housing is connected via an O-ring to the rest of the housing, such a connection providing a slip clutch arrangement whereby should a severe overload of the output shaft result the gearing will not be affected.
  • the reduction gearing housing is completely sealed from the water flow while not interfering with the turbine rotation by provision of a magnetic coupling between the turbine and reduction gearings operable through an integral housing.
  • the whole reduction gear housing is mounted for rotation relative to the sprinkler housing. Rotation is normally prevented by the frictional engagement of frictional shoes with the housing, however upon contact of the stop lever of the rotary head with the adjustable stop tabs, rotational movement of the housing mount is allowed. Since fluidic switching means are connected to the mount, reversal 2 of the fluid inlet flow and subsequently the direction of turbine rotation is effected.
  • the whole assembly is contained on a wheeled frame and is connectable to any source of water under pressure.
  • the sprinkler according to the present invention thus can be seen to provide for watering almost any area de spite any wind or terrain conditions by providing adjustment of all of the angle of rotation, the throw, and the diffuseness of the stream. All adjustments can be made even during operation.
  • the part circle adjustments are made external to the pressurized cavity of the unit while the actual reversing takes place internally.
  • a single output shaft is the only sealed element required for normal rotation of the water distributing assembly, supplying water to the water distributing assembly, and for the action of reversing. This provision of fewer elements especially fewer sealed elements results in the advantage of increased reliability.
  • the arrangement of the parts on the housing and the provision of the internal drive provides a clear indication that the water distributing assembly is adjustable to rotatably oscillate between positions less than 360 apart and between what positions less than 360 apart it will oscillate.
  • the reversing of the stream involves no moving parts within or near the fluid jet that is being reversed, and further that the switching action of the motor mount and associated parts acts as a single .element that moves only a slight amount under the persuasion of a great amount of force. This also results in the advantage of increased reliability.
  • FIG. 1 is an isometric view of a rotary sprinkler according to the teachings of the present invention
  • FIG. 2a is a cross-sectional view of the upper portion of the sprinkler according to the teachings of the present invention.
  • FIG. 2b is a partial cross-sectional view of a detent mechanism for the upper sprinkler portion taken along lines 2b2b of FIG. 2a;
  • FIG. 3 is a front view of the nozzle diffuser face according to the teachings of the present invention.
  • FIG. 4 is an exploded view with portions cut away of the trunnion, gudgeon, and output shaft assembly according to the teachings of the present invention
  • FIG. 5 is a cross-sectional view of the lower portion of the sprinkler according to the teachings of the present invention taken generally along lines 5 5 of FIG.
  • FIG. 6 is a cross-sectional view taken along lines 6 6 of FIG. 5 of the sprinkler according to the teachings of the present invention.
  • FIGS. 70 7c are diagrammatic views showing the operation of fluid flow reversing control means according to the teachings of the present invention.
  • FIGS. 80 8c are diagrammatic views showing the operation of the fluid flow reversing mechanism, with the cover plate removed, according to the teachings of the present invention.
  • a rotary sprinkler according to the teachings of the present invention is shown generally at 10 in FIG. 1.
  • the sprinkler consists generally of a base portion 12, having a water inlet 14 therein and axle l7 mounting wheels 18 secured thereto.
  • a pressurized sprinkler housing 13 is secured to base 12 and has a water distributing assembly, shown generally at 20, rotatably mounted thereon.
  • the water distributing assembly 20, shown in FIGS. 1 4, is composed generally of a nozzle 22, trunnion 30, gudgeon 40, and stop reversing control 50.
  • the nozzle 22 has an eccentric orifice 24 in the delivery end thereof.
  • Mounted on the end of the nozzle 22 is the nozzle diffuser 26 having an aperture 27 in the face thereof and prongs 28 formed from diffuser 26 extending into aperture 27.
  • Diffuser 26 is rotatable with respect to nozzle 22, frictional engagement being maintained therebetween by O ring 29.
  • O-ring 29 also seals the back flow of water caused by the water impinging against the prongs 28 of the diffuser 26.
  • the aperture 27 and prongs 28 of diffuser 26 cooperating with the eccentric orifice 24 in nozzle 22 provides an infinite number of stream diffusion patterns as the diffuser 26 is rotated through 360. Due to the inherent stability of this construction, the diffuser can be rotated even when the sprinkler is operating.
  • Trunnion 30 has nozzle 22 screw-threaded onto the end thereof. Inserted within the open end of trunnion 30 is a vane 32 for removing the turbulence from the water stream flowing through passage in trunnion 30 and thereby increasing the distance of throw for a given orientation of the trunnion and nozzle.
  • the other end of the trunnion 30 is formed by generally spherical member 34.
  • the spherical end 34 is mounted in gudgeon so that it is rotatable in a vertical plane approximately 80 from the solid line position of FIG.
  • the member 34 is prevented, in the preferred embodiment, from rotation relative to gudgeon 40 in any other plane by the engagement of trunnion pins 36 of member 34 with openings 41 in gudgeon 40 (see FIG. 4). It is apparent, however, that a universal joint connection between member 34 and gudgeon 40 could be provided if desired.
  • the O-ring 39 seals the trunnion 30 at all times and ensures that water flowing through the gudgeon 40 flows through passage 35 in trunnion 30.
  • O-ring 39 serves as a friction means to hold the trunnion 30 in any selected vertical orientation. The vertical position selection can be made during operation.
  • O-ring 39 is held in engagement with gudgeon 40 and the surface of spherical end member 34 of trunnion 30 by the enlarged end of tubular output shaft 44.
  • the output shaft 44 is rigidly connected to gudgeon 40 via bolts (not shown) passed through apertures 47 in extensions 45 of output shaft 44 into threaded openings 42 in gudgeon 40 (see FIG. 4). Since the output shaft 44 is rigidly connected to the gudgeon 40, rotation of the shaft 44 will rotate gudgeon 40, trunnion 30, and nozzle 22 the whole water distributing assembly 20.
  • the tubular output shaft 44 has openings 46 near the bottom thereof to allow water to flow from the interior of housing 13 to the trunnion 30.
  • the end of output shaft 44 opposite trunnion 30 has a spline connection 48 to output carrier to be driven thereby.
  • the stop lever for the part circle and reversing adjustment shown generally at 50 in the drawings.
  • the stop assembly 50 includes a stop lever 51 pivotally attached to the gudgeon 40 via roll pin 52.
  • the roll pin 52 facilitates movement of the stop lever 51 between operative positions, nonoperative positions, and in cooperation with portion 53 on the gudgeon prevents excessive movement in the opening 59 in which it is rotatable in gudgeon 40.
  • the stop lever is in the position shown in FIG. 2 wherein detent ball 56 located in gudgeon 40 is biased by spring 57 into contact with recess 54 in stop lever 51 to releasably hold the lever in this position.
  • lever 51 in FIG. 2 then extends into a position wherein it is capable of engagement with the stop tabs on the stop collars, as will be further explained below.
  • the lever is pulled upwardly from the position in FIG. 2 until detent ball 56 engages recess 55, in this position, the bottom end of lever 51 is no longer engageable with the stop tabs and the water distributing assembly 20 will continuously rotate in the same direction.
  • Stop collars 60, 61 having stop tabs 62, 63, assembled respectively thereon are rotatable about upper extension 13' of housing 13.
  • the stop tabs 62, 63 are obviously rotatable relative to the housing 13 and to each other to any selected positions for potential engagement with movable stop lever 51.
  • Each stop collar 60, 61 has recesses 68 formed on the interior surface thereof for cooperation with stop tabs 62 and 63 respectively.
  • Stop tab 62 and biasing spring 66 therefor are mounted in an opening on the under surface of collar 60.
  • the stop tab 62 engages the upper extension 13' of housingv 13 to hold the collar 60 in the selected position relative to stop collar 61.
  • stop tab 63 and biasing spring 67 therefor are mounted in an opening on the under surface of stop collar 61.
  • the stop tab 63 engages the upper extension 13 of housing 13 to hold the collar 61 in the selected position relative to housing 13. It is obvious that instead of incremental adjustment, infinite adjustments could be provided by merely providing a friction engagement between stop tabs 62, 63 and the upper extension 13 of housing 13 instead of the splined coupling 58. Incremental adjustment is preferred, however, since lighter springs facilitate ease of adjustment.
  • the stop tabs can be moved to any desired relative angular orientations with respect to each other and the housing 13.
  • the stop lever 51 With the stop lever 51 in operative position, as shown in FIG. 2, as gudgeon 40 rotates it will rotate lever 5 l therewith until it eventually engages one of the stop tabs, 62, 63.
  • the springs 66 and 67 of the tabs prevent movement of the tabs, and thus reversal of the direction of rotation of the lever 51 and whole water distributing assembly is initiated, as will be more fully described later.
  • the lever 51 will thus be rotatable between the stop tabs 62,"63, and will reverse its direction of rotation when it abuts one of the tabs. If the lever 51 is in the nonoperative position, however (wherein ball 56 engages reces 55), the lever can no longer abut either tab during its rotation, and thus unrestricted rotation in the same direction is allowed.
  • Output shaft 44 is driven by output carrier 75.
  • the output carrier 75 has a splined end 76 thereof that is in engagement with the splined end 48 of shaft 44 so that rotation of carrier 75 will rotate shaft 44, but longitudinal movement therebetween will be allowed.
  • the output shaft 44 is received within the opening of upper extension 13 of housing 13.
  • An o-ring 69 engages the shaft 44 and housing extension 13 and prevents water flow from interior 16 (see FIG. 5) of housing 13 to the water distributing assembly 20 except through openings 46 in tubular shaft 44.
  • a retaining ring 71 retains two thrust washers 70 and a thrust seal 72 in'engagement with O-ring 69 and output shaft 44 to assist the sealing of O-ring 69, and additionally effectively couples the water distributing assembly 20 to the rest of the sprinkler by preventing removal of shaft 44 through the opening in housing extension 13 of housing 13.
  • Output carrier 75 is powered by turbine assembly 130 and gear reduction assembly 135 as will be explained further below.
  • the splined end 76 of output carrier 75 extends through an opening in ring cap 78. Ring cap 78 is placed on top of ring housing 79, and the connection therebetween is maintained watertight by o-ring 80.
  • O- ring 80 also serves as a friction clutch that locks the ring cap 78 to the ring housing 79 during normal operational loading, but allows the cap 78 to turn relative to housing 79 upon a severe overload. Any overload to output shaft 44 and output carrier 75 is transmitted through the planetary reduction gearing assembly 135 to the ring-cap 78 to thereby allow the slippage between it and ring housing 79. This slippage prevents damage to the planetary reduction gearing assembly 135 during an overload, and also allows manual rotation of the water distributing assembly 20 for positioning the lever 51 between stop tabs 62, 63, while not interfering with normal operation of the sprinkler.
  • motor mount 82 Fixedly attached to ring housing 79 via screws 86 through openings in extensions 81 of housing 79 is motor mount 82.
  • the housing 79 and motor mount 82 could be formed of one-piece but the two-piece construction is preferred to allow interchangeability of parts with other sprinklers.
  • the motor mount 82 provides support for the reduction gearing contained within ring housing 79 and ring cap 78 as well as also providing the means whereby the direction of rotation of the water distributing assembly 20 is effected upon engagement of the stop lever 51 with one of the stop tabs 62, 63.
  • the motor mount 82 has an aperture therein for receiving the ring housing 79, arms 83 for containing frictional shoe members 87, and extension 84 having port cover receiving portions 92, 93 for effecting fluidic switching.
  • the arms 83 have apertures in the peripheries thereof for receiving frictional shoes 87 and biasing springs 88 therefor.
  • the frictional shoes 87 each engage a thrust plate 90 inserted respectively within recesses formed in the interior of the lower portion of housing 13 (see FIGS. 5 and 6).
  • the frictional engagement of the shoes 87 with the plates 90 allows limited rotational movement of the whole gear reduction assembly 135 contained within housing 79 relative to base 12 and housing 13 if the forces acting on water distributing assembly 20 preventing rotational movement thereof are greater than the frictional force between shoes 87 and plates 90.
  • the spring force of the stop collar springs 66, 67 are selected so that should lever 51 extending from gudgeon 40 engage a stop tab 62 or 63, the stop tab will not be moved but instead the whole motor mount 82 will be rotated as the motor torque is transferred through the planetary gear housing 79 to the motor mount 82 and the friction members 87 which bears against the thrust plate 90.
  • the extent of the rotational movement of the ring housing 79 and motor mount assembly 82 is preferably limited to 6, enough to allow movement of extension 84 to uncover one port and cover another thereby initiating rotation of turbine assembly in the opposite direction, and subsequent rotation of water distributing assembly 20 in the opposite direction. Stops 15 are pro- 7 prevent misalignment of the reversing assembly while the friction clutch 78, 79, 80 operates.
  • the fluidic switching assembly that effects rotation of the turbine assembly 130 in one or the other of the opposite directions of rotation is shown generally in FIGS. and 6, and in schematic detail in FIG. 7 and 8.
  • the extension 84 of motor mount 82 contains port cover receiving portions 92, 93, each having an opening therein for receiving a port cover and a spring for biasing the port cover. Only one of the port covers, 94, with associated biasing springs, 96, is shown in the drawings, but it is to be understood that portion 93 has a similar port cover assembly therein.
  • the port cover 94 removably covers port 99 in cover plate 100, while the port cover in portion 93 removable covers port 98 in cover plate 100.
  • Cover plate 100 covers the fluidic switching formations, indicated generally at 109 in the drawings formed in base 12, and separates such formations from the water-filled interior 16 of sprinkler housing 13.
  • the fluidic switching formation 109 commonly referred to as a fluid amplifier contains a nozzle portion 1 10 in communication with the sprinkler inlet 14, walls 115 and 116 having ducts 119 and 120 therein communicating between ports 99 and 98 respetively and signal ports 123, 124, splitter 1 14 having cusp 122 formed at the tip thereof and output channels 1 1 1 and l 12 leading to the turbine assembly 130 for supplying water for rotating the turbine in one of the opposite radial directions.
  • FIGS. 7a-c and 8a-c Operation of the fluidic switching arrangement will now be described with particular reference to FIGS. 7a-c and 8a-c.
  • port 99 When the motor mount 82 and extension 84 thereof are in the position shown in FIGS. 7a and 8a, port 99 is covered, but port 98 is uncovered, thereby allowing communication between water-filled interior 16 of housing 13 and duct 120 in wall 116.
  • Water entering nozzle 110 begins to entrain ambient water into a mixing region between walls 115 and 116. Near wall 1 15 where the port 99 is closed the entrained fluid is not easily replaced, while on the opposite wall 116 where port 98 is open the water is easily replaced by the water flowing from the housing interior 16 through port 98 through duct 120 and signal port 124.
  • the result is the rapid development of a transverse pressure gradient across the water jet, and the formation of a bubble or vortex which forms a region of lowest pressure.
  • the pressure gradient across the jet bends the jet toward, and eventually against, the wall 115 at some distance downstream from the nozzle 110. Since the wall is offset from the nozzle so that a small step occurs, the low pressure vortex is stronger and causes an even more pronounced bending of the jet toward and against the wall 115.
  • the cusp 122 at the tip of splitter 1 l4 establishes a stabilizing vortex on the opposite side of the stream to the wall 1 15 which aids in stabilizing the jet against the wall 115.
  • the stream is thus directed through output channel 11 1 thereby running the turbine blades 131 in the clockwise direction.
  • the turbine assembly 130 includes blades 131 shaped to be responsive to radially directed flow of water through either channel 111, or channel 112 of fluid amplifier 109, said blades mounted on ring 132.
  • the other end of ring 132 is a bearing sleeve, 132', which turns relative to collar 133, which is fixedly attached to extension 79 of ring housing 79.
  • Mounted on the interior of ring 132 opposite blades 131 is an outer permanent magnet 134.
  • the magnet 134 is coupled through housing 79 to another, inner permanent magnet 136.
  • the inner magnet 136 is connected to sun carrier 138 having a sun gear 139 formed on the upper end thereof (FIG. 5).
  • Sun gear 139 is the drive gear for the whole planetary reduction gearing.
  • Sun carrier 138 is mounted for rotation about interior shaft 160, which also rotatably mounts all the planetary carriers.
  • Each planetary carrier 141 has planetary gears rotatably mounted on extensions thereof (FIGS. 5 and 6), and secondary sun gears 143 formed thereon.
  • the planetary gears 140 cooperate with the gearing 142 formed on the interior of ring housing 79.
  • the last planetary carrier 145 has a splined end 76 formed thereon instead of another secondary sun gear, the combination of the two is output carrier 75 from which the power is drawn for driving the output shaft 44 and the water distributing assembly 20.
  • the planetary reduction gearing is sealed from the water in chamber 16 at output carrier 75 by an O-ring 150 between output carrier 75 and the interior of ring cap 78.
  • An O-ring provides a suitable seal here since the moving member sealed the output carrier 75 is a low-speed high-torque member, and since it is not directly in the water flow path.
  • planetary reduction gearing provides a much more compact arrangement for a given reduction, and the use of the magnetic coupling at the high-speed low-torque member allows the use of planetary gearing without fouling due to exposure to the water flow and the contaminants carried thereby, without impairing the speed of the turbine.
  • the preferable reduction that is achieved by the planetary reduction is 35221. Such a large reduction would necessitate the utilization of very bulky mechanism if types of reduction gearing other than planetary were used.
  • the planetary reduction gearing is also an integral part of the slip clutch and the direction of rotation reversing means.
  • the sprinkler inlet 14 is connected to a hose supplying water under pressure.
  • the diffuseness of the water stream from the sprinkler is adjusted by rotating the nozzle diffuser 26 relative to the nozzle 24, and the throw of the stream is adjusted by pivoting of the trunnion 30 in a vertical plane relative to gudgeon 40. If it is desired for the nozzle to rotate in a full circle, lever 51 is pulled by thereby engaging detent ball 56 in recess 55 and preventing engagement of lever 51 with either of the stop tabs 62, 63.
  • the water distributing assembly 20 is manually rotated (which rotation is allowed by slip clutch 78, 80, 79) until the lever 51 is between the tabs 62, 63 and lever 51 is then depressed placing lever 51 into potential engagement with the tabs.
  • water As water is supplied from the inlet 14 it flows through fluid amplifier 109 and into engagement with turbine blades 131.
  • the radial force of the water rotates the turbine, which being magentically coupled to the gear reduction assembly 135 via magnets 134, 136 rotates the sun gear 139 for the planetary reduction gears.
  • the output carrier 75 is driven by the reduction gears, which in turn drives the output shaft 44 and subsequently the rest of the water distributing assembly 20.
  • the water flows around and past ring housing 79 and ring cap 78 through holes 46 in output shaft 44 into the interior of the tubular shaft 44.
  • the water then flows through passage in trunnion 30, and finally through nozzle 22 and nozzle diffuser 26 to be delivered to the area to be sprinkled.
  • Rotation of the nozzle 22 and associated assemblies continues until lever 51 engages stop tab 62 or 63. When this happens, the nozzle no longer rotates but the motor torque is transferred through the ring housing 79 to motor mount 82. Since the resisting torque of stop collars 60 and 61 resulting from the action of springs 66, 67 is greater than the frictional torque provided by frictional shoes 87 and 10 thrust plates 90, the motor mount is the area of least resistance.
  • extension 84 covers the port of the fluid amplifier that was previously uncovered, and uncovers the port that was previously covered. This results in switching of the water flow from one of the output channels 111, 112 to the other channel, and subsequent rotation of the turbine in the opposite direction (as has been more fully described above). This results-in rotation of the nozzle in the direction opposite to its previous direction of rotation, which rotation will continue until the lever 51 engages the other stop tab.
  • the nozzle 22 is the only projection extending from the top of the member 40 [there being no need for other members since the drive is located completely within the housing 12, 13] and since the stop tabs 62, 63 clearly extend from the housing 13 that that the assembly 20 is rotatably oscillatable between the positions of the tabs 62,63, the nozzle 22 always being disposed therebetween. Also the nozzle 22 is mounted directly above the stop lever 51. Thus a clear indication is provided that the assembly 20 is rotatable between positions less than 360 apart [part-circle], and exactly what those positions are for a given setting when operated. This is especially important when the sprinkler is to be used by an unskilled individual, and is not shown in the prior art (see US. Pat. Nos. 3,070,314 and 3,405,87l in this regard). lndicia on housing 13 (see FIG. 1) may also be provided to assist in providing such a clear indication.
  • a lawn sprinkler having a nozzle assembly comprising a. a supply of water under pressure,
  • a tubular nozzle having one end adapted to be connected to said supply of water under pressure and a delivery end for delivering water from said supply to an area to be sprinkled
  • nozzle face terminating the delivery end of said nozzle, said nozzle face having an eccentric orifice therein, and
  • a nozzle diffuser having a tubular body portion surrounding said nozzle face and mounted on said nozzle for pivotal movement with respect thereto, and a face portion having at least one pointed member forming a border of an orifice therein, said orifice in said nozzle face and said orifice in said nozzle diffuser face portion cooperating to change the diffuseness of the water stream issuing from said noule depending upon the relative orientation of said nozzle and said nozzle diffuser.
  • a lawn sprinkler as recited in claim 1 wherein a means is provided for both providing frictional maintenance of said nozzle diffuser with respect to said nozzle in the position to which it is pivoted and for sealing the area of engagement between said nozzle diffuser and said nozzle for preventing water flow in any path except through said nozzle face and said nozzle diffuser face portion orifices.
  • a lawn sprinkler having a water distributing assembly rotatable about an axis comprising a. a source of water under pressure,
  • a nozzle having a nozzle face having a delivery orifice therein for delivery of water from said source to an area to be sprinkled.
  • means for adjusting the throw of water issuing from said delivery orifice for a given water pressure said means including (i) a first rotatable member, (ii) a second rotatable member. said second member rotatable with said first member about said axis and pivotally movable in a plane containing said axis of rotation with respect to said first member, said second member operatively connected to said nozzle, and (iii) frictional means for maintaining the relative inclination of said second member with respect to said first member throughout the rotation of said members about said axis.
  • said water distributing assembly further comprises water conducting passages through said first and second members for conducting water from said source to said nozzle and a tubular output shaft for conducting water from said source to said first member and rigidly connected to said first member for rotating said first member and said water distributing assembly as a whole therewith.
  • a lawn sprinkler as recited in claim 11 wherein means are provided at said common interface for both sealing said interface so that water being delivered can only pass from said output shaft through said passages, and for providing said frictional maintenance of the relative inclination of said second member with respect to said first member.
  • a rotating lawn sprinkler having an adjustable stop assembly for restricting rotation of a rotatable water distributing assembly of said sprinkler to less than 360 and for initiating reversal of the direction of rotation of said water distributing assembly, or for allowing unrestricted rotation thereof, said sprinkler comprising a. a relatively stationary sprinkler housing,
  • a lawn sprinkler as recited in claim 20 further comprising engagement means associated with said stop collars and engaging complimentary means formed on said sprinkler housing, said engagement means providing for incremental adjustment of said stop collars with respect to said housing.
  • a rotatable lawn sprinkler comprising a. a pressurized sprinkler housing,
  • stop means mounted on said housing for stopping the rotation of said water distributing assembly and initiating reversal of the direction of rotation thereof
  • said means including (i) a reversible turbine responsive to water flow under pressure through said inlet, (ii) planetary gear reduction means operatively connected to said turbine and to an output shaft for rotating said water distributing assembly, said planetary gear reduction means including a housing-gear, (iii) means for mounting said planetary gear reduction means housing-gear for no relative movement with respect to said sprinkler housing during normal rotation of said water distributing assembly but for limited movement with respect to said sprinkler housing upon said stop means stopping said water distributing assembly, and (iv) means responsive to the relative movement between said housing-gear and said sprinkler housing for reversing the direction of flow of water impinging upon said turbine and thereby the direction of rotation of said turbine and said water distributing assembly.
  • a lawn sprinkler as recited in claim 22 wherein said means responsive to the relative movement of said planetary gear reduction means housing-gear with respect to said sprinkler housing comprises a fluid amplifier and a member operatively associated with said mounting means for said gear reduction means housing-gear for covering or uncovering signal ports of said fluid amplifier.
  • said mounting means for said gear reduction means housing-gear comprises a member rigidly connected to said gear reduction means housing-gear, said member having a plurality of arms, a friction shoe associated with each arm, and a relatively stationary means forcooperation with said friction shoe for providing sufficient frictional force to prevent said limited relative movement between said gear reduction means housinggear and said sprinkler housing during normal operation of said sprinkler but allowing said limited relative movement when said rotation of said water distributing assembly is stopped by said stop means.
  • a lawn sprinkler as recited in claim 29 wherein a spring biased detent extends from said water distributing assembly, said spring biased detent engaging one of two recesses on said stop lever, said recesses corresponding to location of said stop lever in an extended axial position with respect to said water distributing assembly for engaging said stop tabs, and a retracted position with respect to said water distributing assembly so that engagement with said stop tabs is not possible.
  • a lawn sprinkler as recited in claim 30 wherein said stop collars are mounted in engagement with and for rotation with respect to said sprinkler housing, and wherein engagement means are provided on said stop collars for cooperating with said sprinkler housing, said engagement means providing sufficient force to maintain said stop tabs stationary when engaged by said stop lever thereby allowing initiation of said reversal of the direction of rotation of said water distributing assembly.
  • a lawn sprinkler comprising a. a sprinkler housing for containing water under pressure,
  • a water distributing assembly mounted on said housing for rotation relative thereto, said assembly distributing water from said source to an area to be sprinkled
  • g. means for optionally limiting the rotation of said water distributing assembly to less than 360 and for adjusting the limits of said rotation
  • a lawn sprinkler having a drive assembly comprising a. an inlet for supplying a flow of water under pressure,
  • planetary gear reduction means operatively connected to said turbine and to said output shaft for driving said output shaft at a speed less than the speed of rotation of said turbine, said planetary gear reduction means including (i) a housing-gear portion, (ii) a cap-gear portion, and (iii) means between said portions for normally maintaining said housing-gear and said cap-gear portions together while allowing relative movement therebetween should said output shaft be subject to an overload to thereby protect said gear reduction means and said turbine from damage.
  • a lawn sprinkler as recited in claim 34 wherein said turbine is operatively connected to said gear reduction means by permanent magnet means acting through said housing-gear portion for allowing said gear reduction means to be completely sealed while not interfering with the rotation of said turbine.
  • a lawn sprinkler assembly comprising a. a sprinkler housing for containing water under pressure,
  • a water distributing assembly mounted on said housing for movement relative thereto for distributing water from said inlet to an areato be sprinkled
  • a lawn sprinkler assembly as recited in claim 38 wherein said means associated with said gear reduction means housing-gear portion for reversing the direction of rotation of said turbine includes means mounting said gear reduction means housing-gear portion for limited movement with respect to said sprinkler housing and fluid amplifier means responsive to the relative movement of said gear reduction means housing-gear portion with respect to said sprinkler housing for reversing the direction of flow impinging upon said turbine and thereby the direction of rotation of said turbine.
  • a rotatable lawn sprinkler comprising a. a sprinkler housing for containing water under pressure,
  • a water distributing assembly mounted on said housing for rotation relative thereto and for distributing water from said housing to an area to be sprinkled
  • a hollow shaft extending from said housing to said water distributing assembly for supplying water under pressure from said housing to said water distributing assembly and rotating said water distributing assembly, said hollow shaft the only means extending from the interior of said housing to said water distributing assembly,
  • g. means within said housing responsive to a relative motion occurring within said housing after said hollow shaft is stopped for reversing the direction of rotation of said water distributing assembly.
  • a lawn sprinkler as recited in claim 40 wherein said means within said housing for reversing the direction of rotation of said water distributing assembly comprises planetary gear reduction means operatively connected to said tubular shaft including a housinggear for enclosing said planetary gear reduction means, a reversible turbine responsive to water flow under pressure through said inlet and operatively connected to said gear reduction means, means for mounting said planetary gear reduction means housing for no relative movement with respect to said sprinkler housing during normal operation of said sprinkler but for limited movement with respect to said sprinkler housing upon said stop means stopping said water distributing assembly, and means responsive to the relative movement of said planetary gear reduction means housing with respect to said sprinkler housing for reversing the direction of flow of water impinging upon said turbine and thereby the direction of rotation of said turbine.
  • a lawn sprinkler as recited in claim 41 wherein said means responsive to the relative movement of said 17 planetary gear reduction means housing-gear with respect to said sprinkler housing comprises a fluid amplitier and a member operatively associated with said mounting means for said gear reduction means housing-gear for covering or uncovering signal ports of said fluid amplifier.
  • a lawn sprinkler as recited in claim 42 wherein said fluid amplifier comprises a nozzle opening connected to said water inlet for said sprinkler, two outlet channels, one for supplying water to said turbine to rotate it in one direction, and the other for supplying water to said turbine to rotate it in the opposite direction, and two signal ports for providing communication between water within said pressurized sprinkler housing and said fluid amplifier when uncovered by said member operatively associated with said mounting means for said gear reduction means.
  • a lawn sprinkler as recited in claim 42 wherein said mounting means for saidv gear reduction means housing-gear comprises a member rigidly connected to said gear reduction means housing-gear, said member having a plurality of arms, a friction shoe associated with each arm, and a relatively stationary means for cooperation with said friction shoe for providing sufficient frictional force to prevent said limited relative movement between said gear reduction means housinggear and said sprinkler housing during normal operation of said sprinkler but allowing said limited relative movement when said rotation of said water distributing assembly is stopped by said stop means.
  • a lawn sprinkler comprising:
  • a water distributing assembly carried by said housing having a discharge nozzle extending upwardly and outwardly with respect to the upper portion of said housing, and rotatable in either direction about a vertical axis with respect thereto;
  • adjustable means for determining the arcuate extent of the oscillatory rotative movementsof said nozzle disposed on the exterior of said housing in physical relation with said nozzle unobstructed by exterior drive means structure so as to clearly visually indicate to an operator the determined arcuate extent and the position of the part-circle water distribution pattern with respect to said sprinkler housing when said sprinkler is operated, said adjustable means comprising:
  • stop means carried by said water distributing assembly for rotation therewith and between said stop tabs for engaging the same to determine the arcuate extent of the rotative oscillatory movements of said nozzle between said stop tabs.

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  • Nozzles (AREA)
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US486587A 1974-05-06 1974-07-08 Lawn sprinkler Expired - Lifetime US3921912A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US486587A US3921912A (en) 1974-05-06 1974-07-08 Lawn sprinkler
DE19752517243 DE2517243A1 (de) 1974-05-06 1975-04-18 Rasensprenger
CA225,468A CA1035393A (en) 1974-05-06 1975-04-25 Lawn sprinkler
FR7513962A FR2345911A1 (fr) 1974-05-06 1975-05-05 Arroseur rotatif pour les pelouses
GB18759/75A GB1508179A (en) 1974-05-06 1975-05-05 Lawn sprinkler
AU80881/75A AU484692B2 (en) 1975-05-06 Lawn sprinkler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US467555A US3915383A (en) 1974-05-06 1974-05-06 Sprinkler with sealed magnetic rotary motion transmitting mechanism
US486587A US3921912A (en) 1974-05-06 1974-07-08 Lawn sprinkler

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US3921912A true US3921912A (en) 1975-11-25

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US486587A Expired - Lifetime US3921912A (en) 1974-05-06 1974-07-08 Lawn sprinkler

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US (1) US3921912A (OSRAM)
CA (1) CA1035393A (OSRAM)
DE (1) DE2517243A1 (OSRAM)
FR (1) FR2345911A1 (OSRAM)
GB (1) GB1508179A (OSRAM)

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US4129081A (en) * 1976-10-04 1978-12-12 Etablissements P. Ferbeck & Vincent Rotary injector for liquid residue incinerating furnace
FR2457128A1 (fr) * 1979-05-21 1980-12-19 Toro Co Arroseur couvrant une surface en forme de secteur par oscillation d'une tete d'arroseur entre deux positions
USD263868S (en) 1980-05-01 1982-04-13 Beatrice Foods Co. Water sprinkler base
US4457470A (en) * 1982-04-05 1984-07-03 R. M. Smith, Inc. Impulse sprinkler
US4498626A (en) * 1982-05-12 1985-02-12 Rain Bird Sprinkler Mfg. Corp. Reaction drive sprinkler
US4650118A (en) * 1985-06-24 1987-03-17 Richdel Div. Of Garden America Corp. Pop-up gear driven sprinkler head
US4671462A (en) * 1984-09-20 1987-06-09 Gerardus Johannes Kraaij Sprinklers
US4848672A (en) * 1987-10-24 1989-07-18 Kyoritsu Gokin Mfg. Co., Ltd. Descaling nozzle
US4848662A (en) * 1985-09-12 1989-07-18 Yoram Shevach Water sprinkler
US5031833A (en) * 1986-09-21 1991-07-16 Moshe Gorney Sprinkler
US5039013A (en) * 1989-02-23 1991-08-13 Anzen Motor Co., Ltd. Rotating nozzle apparatus
US5158235A (en) * 1991-02-19 1992-10-27 Elwood Hydraulics Company, Inc. Turbulence-quelling fluid-flow controller and method
US5597119A (en) * 1993-06-30 1997-01-28 Naan Irrigation Systems Rotating spinkler having magnetic coupling elements for transmitting motion
US5657928A (en) * 1995-11-06 1997-08-19 Jian; May-Be Adjustment structure of a rotary sprinkler
US5769322A (en) * 1995-07-07 1998-06-23 Gilmour, Inc. Rotary sprinkler and base
US5878964A (en) * 1996-05-03 1999-03-09 Hansen; Dennis R. Spray nozzle with two or more equally sized orifices
US6027041A (en) * 1992-11-10 2000-02-22 Evnx Technologies, Inc. Sprayer with swiveling spray head
FR2796806A1 (fr) * 1999-07-28 2001-02-02 Scea Brilloise Arroseur a retournement automatique
US20020153432A1 (en) * 2000-10-26 2002-10-24 Mckenzie Jeff R. Rotary sprinkler
US6705647B1 (en) 2000-11-22 2004-03-16 Strahman Valves, Inc. Fluid coupling device
US6793152B1 (en) * 1999-02-16 2004-09-21 Arno Drechsel Self-adjusting rotating joint, especially for liquid distribution devices
US20050103887A1 (en) * 2003-11-14 2005-05-19 The Toro Company Sprinkler with nozzle for uniform fluid distribution
US7090146B1 (en) 2004-03-23 2006-08-15 Orbit Irrigation Products, Inc. Above-ground adjustable spray pattern sprinkler
US20080308650A1 (en) * 2007-06-13 2008-12-18 Clark Michael L Gear Driven Sprinkler with Top Turbine
US20090188947A1 (en) * 2008-01-24 2009-07-30 Dodd Joseph K Hinged pump mechanisms and methods of using the same
US20100176217A1 (en) * 2009-01-13 2010-07-15 Rain Bird Corporation Arc Adjustable Rotary Sprinkler Having Full-Circle Operation
US20110315717A1 (en) * 2010-06-24 2011-12-29 Lewandowski Valerie R Self-adjusting handle for spray bottles
US8177148B1 (en) 2006-02-10 2012-05-15 The Toro Company Irrigation sprinkler with adjustable nozzle trajectory
US8313043B1 (en) * 2007-01-19 2012-11-20 Hunter Industries, Inc. Friction clutch for rotor-type sprinkler
CN103004555A (zh) * 2012-12-11 2013-04-03 青岛冠中生态股份有限公司 垂直绿化给排水系统的连接控制装置
US8733672B2 (en) 2010-11-24 2014-05-27 Rain Bird Corporation Rotary irrigation sprinkler with an electromagnetic drive system
US20140270999A1 (en) * 2013-03-16 2014-09-18 Hsien-Jen Huang Coolant delivery device for cutting tools
US20140299159A1 (en) * 2011-10-18 2014-10-09 Peter Helm Cooking appliance with a pan and a method for cleaning the pan
US9192110B2 (en) 2010-08-11 2015-11-24 The Toro Company Central irrigation control system
US9221065B1 (en) 2007-01-22 2015-12-29 The Toro Company Helical water distribution restrictor
US9682386B2 (en) 2014-07-18 2017-06-20 NaanDanJain Irrigation Ltd. Irrigation sprinkler
US9775306B2 (en) 2015-04-14 2017-10-03 Yuan-Mei Corp. Above ground sprinkler
US10232388B2 (en) 2017-03-08 2019-03-19 NaanDanJain Irrigation Ltd. Multiple orientation rotatable sprinkler
US10322421B2 (en) 2015-04-14 2019-06-18 Yuan-Mei Corp. Sprinkler
CN109964907A (zh) * 2019-03-26 2019-07-05 黄永华 一种爬架类蔬菜农药喷洒装置
US10717093B2 (en) * 2014-12-23 2020-07-21 Hunter Industries, Inc. Reversing mechanism for irrigation sprinkler with disengaging gears
US10837575B2 (en) * 2019-03-08 2020-11-17 John S. Heaney Magnetically coupled actuator and limit switch assembly for a sealed chamber system
US20210346553A1 (en) * 2020-05-07 2021-11-11 SteriGun, Inc. Disinfecting system and method
US11596956B2 (en) * 2019-11-14 2023-03-07 K-Rain Manufacturing Corp. Oscillating sprinkler
CN116438014A (zh) * 2020-11-12 2023-07-14 凯特克控股私人有限公司 洒水器
US11933417B2 (en) 2019-09-27 2024-03-19 Rain Bird Corporation Irrigation sprinkler service valve
US12030072B2 (en) 2020-11-16 2024-07-09 Rain Bird Corporation Pressure regulation device and method for irrigation sprinklers
US12259059B2 (en) 2019-03-08 2025-03-25 John S. Heaney Oscillator and flow diverter for a sprinkler system
US12343748B2 (en) 2021-03-16 2025-07-01 Rain Bird Corporation Multi-mode rotor sprinkler apparatus and method
US12396412B2 (en) 2019-03-08 2025-08-26 John S. Heaney Location awareness and gesture control for an electronically controlled sprinkler system
US12434252B2 (en) 2022-04-20 2025-10-07 Rain Bird Corporation Full-circle and part-circle rotor sprinkler
US12440855B2 (en) 2022-10-27 2025-10-14 Rain Bird Corporation Multi-mode rotor sprinkler apparatus and method

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DE3833984C2 (de) * 1988-10-06 1996-10-17 Gardena Kress & Kastner Gmbh Regner
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AT2353U1 (de) * 1997-09-16 1998-09-25 Agrotechnik Wolfbauer Gmbh Kugelverbindung zu neigungsausgleich für stative zu trommelberegnungsmaschinen

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US3575347A (en) * 1969-03-11 1971-04-20 Gates Rubber Co Adjustable sprinkler
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Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4129081A (en) * 1976-10-04 1978-12-12 Etablissements P. Ferbeck & Vincent Rotary injector for liquid residue incinerating furnace
FR2457128A1 (fr) * 1979-05-21 1980-12-19 Toro Co Arroseur couvrant une surface en forme de secteur par oscillation d'une tete d'arroseur entre deux positions
USD263868S (en) 1980-05-01 1982-04-13 Beatrice Foods Co. Water sprinkler base
US4457470A (en) * 1982-04-05 1984-07-03 R. M. Smith, Inc. Impulse sprinkler
US4498626A (en) * 1982-05-12 1985-02-12 Rain Bird Sprinkler Mfg. Corp. Reaction drive sprinkler
US4671462A (en) * 1984-09-20 1987-06-09 Gerardus Johannes Kraaij Sprinklers
US4650118A (en) * 1985-06-24 1987-03-17 Richdel Div. Of Garden America Corp. Pop-up gear driven sprinkler head
US4848662A (en) * 1985-09-12 1989-07-18 Yoram Shevach Water sprinkler
US5031833A (en) * 1986-09-21 1991-07-16 Moshe Gorney Sprinkler
US5115977A (en) * 1986-09-21 1992-05-26 Naan Mechanical Works Sprinkler
US4848672A (en) * 1987-10-24 1989-07-18 Kyoritsu Gokin Mfg. Co., Ltd. Descaling nozzle
US5039013A (en) * 1989-02-23 1991-08-13 Anzen Motor Co., Ltd. Rotating nozzle apparatus
US5158235A (en) * 1991-02-19 1992-10-27 Elwood Hydraulics Company, Inc. Turbulence-quelling fluid-flow controller and method
US6027041A (en) * 1992-11-10 2000-02-22 Evnx Technologies, Inc. Sprayer with swiveling spray head
US5597119A (en) * 1993-06-30 1997-01-28 Naan Irrigation Systems Rotating spinkler having magnetic coupling elements for transmitting motion
US5769322A (en) * 1995-07-07 1998-06-23 Gilmour, Inc. Rotary sprinkler and base
US5657928A (en) * 1995-11-06 1997-08-19 Jian; May-Be Adjustment structure of a rotary sprinkler
US5878964A (en) * 1996-05-03 1999-03-09 Hansen; Dennis R. Spray nozzle with two or more equally sized orifices
US6793152B1 (en) * 1999-02-16 2004-09-21 Arno Drechsel Self-adjusting rotating joint, especially for liquid distribution devices
FR2796806A1 (fr) * 1999-07-28 2001-02-02 Scea Brilloise Arroseur a retournement automatique
US20020153432A1 (en) * 2000-10-26 2002-10-24 Mckenzie Jeff R. Rotary sprinkler
US6945471B2 (en) * 2000-10-26 2005-09-20 The Toro Company Rotary sprinkler
US6705647B1 (en) 2000-11-22 2004-03-16 Strahman Valves, Inc. Fluid coupling device
US6746056B2 (en) 2000-11-22 2004-06-08 Strahman Valves, Inc. Fluid coupling device
US20050103887A1 (en) * 2003-11-14 2005-05-19 The Toro Company Sprinkler with nozzle for uniform fluid distribution
US7090146B1 (en) 2004-03-23 2006-08-15 Orbit Irrigation Products, Inc. Above-ground adjustable spray pattern sprinkler
US8177148B1 (en) 2006-02-10 2012-05-15 The Toro Company Irrigation sprinkler with adjustable nozzle trajectory
US8313043B1 (en) * 2007-01-19 2012-11-20 Hunter Industries, Inc. Friction clutch for rotor-type sprinkler
US9221065B1 (en) 2007-01-22 2015-12-29 The Toro Company Helical water distribution restrictor
US8220723B2 (en) 2007-06-13 2012-07-17 Hunter Industries, Inc. Gear driven sprinkler with top turbine
US7748646B2 (en) * 2007-06-13 2010-07-06 Hunter Industries, Inc. Gear driven sprinkler with top turbine
US20080308650A1 (en) * 2007-06-13 2008-12-18 Clark Michael L Gear Driven Sprinkler with Top Turbine
US20100187331A1 (en) * 2007-06-13 2010-07-29 Hunter Industries, Inc. Gear Driven Sprinkler with Top Turbine
US8888019B2 (en) 2007-06-13 2014-11-18 Hunter Industries, Inc. Gear driven sprinkler with top turbine
US8225967B2 (en) * 2008-01-24 2012-07-24 Meadwestvaco Corporation Hinged pump mechanisms and methods of using the same
US20090188947A1 (en) * 2008-01-24 2009-07-30 Dodd Joseph K Hinged pump mechanisms and methods of using the same
US7850094B2 (en) 2009-01-13 2010-12-14 Rain Bird Corporation Arc adjustable rotary sprinkler having full-circle operation
US20100176217A1 (en) * 2009-01-13 2010-07-15 Rain Bird Corporation Arc Adjustable Rotary Sprinkler Having Full-Circle Operation
US8967434B2 (en) * 2010-06-24 2015-03-03 L&F Innoventions Llc Self-adjusting handle for spray bottles
US20110315717A1 (en) * 2010-06-24 2011-12-29 Lewandowski Valerie R Self-adjusting handle for spray bottles
US9192110B2 (en) 2010-08-11 2015-11-24 The Toro Company Central irrigation control system
US8733672B2 (en) 2010-11-24 2014-05-27 Rain Bird Corporation Rotary irrigation sprinkler with an electromagnetic drive system
US20140299159A1 (en) * 2011-10-18 2014-10-09 Peter Helm Cooking appliance with a pan and a method for cleaning the pan
US10589325B2 (en) * 2011-10-18 2020-03-17 MKN Maschinenfabrik Kurt Neubauer GmbH & Co. KG Cooking appliance with a pan and a method for cleaning the pan
CN103004555A (zh) * 2012-12-11 2013-04-03 青岛冠中生态股份有限公司 垂直绿化给排水系统的连接控制装置
US20140270999A1 (en) * 2013-03-16 2014-09-18 Hsien-Jen Huang Coolant delivery device for cutting tools
US9682386B2 (en) 2014-07-18 2017-06-20 NaanDanJain Irrigation Ltd. Irrigation sprinkler
US9895705B2 (en) 2014-07-18 2018-02-20 NaanDanJain Irrigation Ltd. Irrigation sprinkler
US10427176B2 (en) 2014-07-18 2019-10-01 NaanDanJain Irrigation Ltd. Irrigation sprinkler
US10717093B2 (en) * 2014-12-23 2020-07-21 Hunter Industries, Inc. Reversing mechanism for irrigation sprinkler with disengaging gears
US10322421B2 (en) 2015-04-14 2019-06-18 Yuan-Mei Corp. Sprinkler
US9775306B2 (en) 2015-04-14 2017-10-03 Yuan-Mei Corp. Above ground sprinkler
US10239067B2 (en) 2017-03-08 2019-03-26 NaanDanJain Irrigation Ltd. Multiple orientation rotatable sprinkler
US10232388B2 (en) 2017-03-08 2019-03-19 NaanDanJain Irrigation Ltd. Multiple orientation rotatable sprinkler
US11226054B2 (en) 2019-03-08 2022-01-18 John S. Heaney Magnetically coupled actuator and limit switch for a flow diverter
US12259059B2 (en) 2019-03-08 2025-03-25 John S. Heaney Oscillator and flow diverter for a sprinkler system
US11047502B2 (en) 2019-03-08 2021-06-29 John S. Heaney Magnetically coupled actuator and lead screw control for a variable pressure pilot valve
US11162604B2 (en) 2019-03-08 2021-11-02 John S. Heaney Programmable electronically controlled rotary sprinkler system and method of operation
US10837575B2 (en) * 2019-03-08 2020-11-17 John S. Heaney Magnetically coupled actuator and limit switch assembly for a sealed chamber system
EP3934815A4 (en) * 2019-03-08 2022-12-07 Heaney, John, S. PROGRAMMABLE ELECTRONICALLY CONTROLLED ROTATING SPRINKLER SYSTEM AND METHOD OF OPERATION
US12396412B2 (en) 2019-03-08 2025-08-26 John S. Heaney Location awareness and gesture control for an electronically controlled sprinkler system
CN109964907A (zh) * 2019-03-26 2019-07-05 黄永华 一种爬架类蔬菜农药喷洒装置
US11933417B2 (en) 2019-09-27 2024-03-19 Rain Bird Corporation Irrigation sprinkler service valve
US11596956B2 (en) * 2019-11-14 2023-03-07 K-Rain Manufacturing Corp. Oscillating sprinkler
US20210346553A1 (en) * 2020-05-07 2021-11-11 SteriGun, Inc. Disinfecting system and method
CN116438014A (zh) * 2020-11-12 2023-07-14 凯特克控股私人有限公司 洒水器
US12030072B2 (en) 2020-11-16 2024-07-09 Rain Bird Corporation Pressure regulation device and method for irrigation sprinklers
US12343748B2 (en) 2021-03-16 2025-07-01 Rain Bird Corporation Multi-mode rotor sprinkler apparatus and method
US12434252B2 (en) 2022-04-20 2025-10-07 Rain Bird Corporation Full-circle and part-circle rotor sprinkler
US12440855B2 (en) 2022-10-27 2025-10-14 Rain Bird Corporation Multi-mode rotor sprinkler apparatus and method

Also Published As

Publication number Publication date
CA1035393A (en) 1978-07-25
DE2517243A1 (de) 1975-11-27
AU8088175A (en) 1977-07-14
FR2345911A1 (fr) 1977-10-28
GB1508179A (en) 1978-04-19
FR2345911B1 (OSRAM) 1981-06-19

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