US3854664A - Sprinkler systems - Google Patents

Sprinkler systems Download PDF

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Publication number
US3854664A
US3854664A US40569073A US3854664A US 3854664 A US3854664 A US 3854664A US 40569073 A US40569073 A US 40569073A US 3854664 A US3854664 A US 3854664A
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Prior art keywords
means
nozzle
fluid
sprinkler
portion
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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E Hunter
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Toro Co
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Toro Co
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements; Spraying or sprinkling heads with rotating elements located upstream the outlet
    • B05B3/02Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements; Spraying or sprinkling heads with rotating elements located upstream the outlet with rotating elements
    • B05B3/04Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements; Spraying or sprinkling heads with rotating elements located upstream the outlet with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0409Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements; Spraying or sprinkling heads with rotating elements located upstream the outlet with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements
    • B05B3/0418Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements; Spraying or sprinkling heads with rotating elements located upstream the outlet with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine
    • B05B3/0422Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements; Spraying or sprinkling heads with rotating elements located upstream the outlet with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet with moving, e.g. rotating, outlet elements comprising a liquid driven rotor, e.g. a turbine with rotating outlet elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/70Arrangements for moving spray heads automatically to or from the working position
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/70Arrangements for moving spray heads automatically to or from the working position
    • B05B15/72Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means
    • B05B15/74Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means driven by the discharged fluid
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S239/00Fluid sprinkling, spraying, and diffusing
    • Y10S239/01Pattern sprinkler

Abstract

Improvements in sprinkler systems having fluid under pressure flowing therethrough and a sprinkler head with a pop-up nozzle actuated by fluid pressure. An impeller is actuated by the fluid flow to rotate the nozzle and thus rotate the spray of fluid therefrom. A transmission is disposed between the impeller and the nozzle for transmitting rotation of the impeller to the nozzle. The transmission is sealed off from the fluid passing through the system by a resilient expandable diaphragm at one end. A fluid pressure responsive seal is provided in the system in sealing engagement with the nozzle. The sealed-off portion of the transmission is completely filled with a lubricating medium which is free to selectively contract or expand against the diaphragm in response to varying ambient conditions encountered by the sprinkler head. The nozzle may also include means for varying the pattern of the sprayed fluid and may be comprised of molded plastic components which may be assembled together.

Claims (20)

1. In a sprinkler system having fluid under pressure flowing therethrough, and a sprinkler head operatively connected to said system having a nozzle for dispersing said fluid therefrom, the improvement which comprises: impeller means associated with said head operatively engaging said nozzle for rotating said nozzle in response to said fluid passing through said system, said impeller means including transmission means for transmitting movement of said impeller to said nozzle, said transmission means being sealed off from engagement by said fluid at one end by an expandable diaphragm separating said transmission means from said fluid and closedoff in a fluid-tight manner at the other end and a lubricating medium completely filling the sealed-off portion of said transmission means, said lubricating medium being free to selectively contract or expand thereby displacing said diaphragm in response to varying ambient conditions encountered by said sprinkler head.
2. In the sprinkler system of claim 1 wherein the lubricating medium is of a differing coefficient of expansion than the materials comprising said transmission means.
3. In the sprinkler system of claim 1 wherein said transmission means includes reduction gearing means disposed in said sealed-off portion and in operative engagement with said impeller means for transmitting rapid rotation of said impeller means to slow rotation of said nozzle.
4. In the sprinkler system of claim 1 wherein screening means is disposed in said sprinkler head adapted to screen fluid entering said system before said fluid contacts said impeller means.
5. In the sprinkler system of claim 4 wherein said screening means includes a screen member encircling said impeller means, said screen member having a plurality of openings therein for screening fluids passing therethrough.
6. In the sprinkler system of claim 4 wherein said screening means includes a screening member disposed within said sprinkler head in contact with said fluid entering therein, said screening member having a main central imperforate body portion and a plurality of radially outwardly extending upstanding ribs, said ribs forming generally triangular openings between adjacent ribs, said triangular openings tapering from said central body portion outwardly to the periphery of said screening member forming a plurality of peripheral spaced openings disposed about the periphery of said screening member and in fluid communication with the spaces between adjacent ribs, the portion of said screening member between said peripheral openings and said central body portion also being imperforate.
7. In the sprinkler system of claim 1 wherein said nozzle includes a first nozzle cap portion operatively connected to said impeller means and rotatable thereby, and a main nozzle body having a plurality of passageways extending therethrough, said passageways having openings leading into said passageways for receiving fluid from said impeller means and orifices leading from said passageways, for spraying fluid therefrom, and means associated with both said nozzle cap portion and said main nozzle body for transmitting rotation of said nozzle cap portion by said impeller means to said main nozzle body.
8. In the sprinkler system of claim 1 wherein said main nozzle body includes an upper nozzle body portion and a lower nozzle body portion, three sides of said passageways extending through said upper nozzle body portion and leading into said orifices with said orifices open on one side thereof and the fourth side of said passageways and the closing-off of said orifices being formed by the interengagement of said upper and lower nozzle body portions, guide means associated with both of said nozzle body portions for guiding said nozzle body portions into interengagement in a manner whereby said fourth sides closes off said passageways and said orifices in said upper nozzle body portion in a fluid-tight manner, and said openings being disposed on said lower nozzle body portion.
9. In the sprinkler system of claim 8 wherein said upper and lower nozzle body portions are welded together.
10. In the sprinkler system of claim 7 wherein said openings are generally trapezoidal in cross-section.
11. In the sprinkler system of claim 7 wherein said openings are generally rectangular in cross-section.
12. In a sprinkler system having fluid under pressure flowing therethrough, and a sprinkler head operatively connected to said system having a nozzle for dispersing said fluid therefrom, said nozzle having a plurality of passageways extending completely therethrough, the improvement which comprises: impeller means associated with said head operatively engaging said nozzle for rotating said nozzle in response to said fluid passing through said system, said impeller means enclosed by a housing having an upper portion and an open lower end for receiving said fluid therein, and sealing means disposed between the upper portion of said housing and said nozzle for preventing fluid entering said housing from passing between the upper portion of said housing and said nozzle while permitting said fluid to flow out of the passageways in said nozzle, said sealing means being adapted upon application of fluid under pressure to increase the pressure between it and said nozzle and the upper portion of said housing.
13. In the sprinkler system of claim 12 wherein said impeller means includes transmission means therein for transmitting movement of said impeller means to said nozzle, said transmission means being enclosed by a second housing, and an expandable diaphragm seal disposed within said second housing between said impeller means and said transmission means.
14. In the sprinkler system of claim 12 further including template means associated with said sprinkler head disposed between said nozzle and said sealing means adapted to set a predetermined pattern of spray of fluid under pressure from said nozzle.
15. In the sprinkler sytem of claim 14 wherein said template means is a metallic disc having aperture means therein shaped for providing said predetermined pattern of spray in a fluid communication with the fluid entering said sprinkler head and in selective fluid communication with the passageways of said nozzle.
16. In the sprinkler system of claim 15 wherein the upper portion of said housing includes an inwardly extending flange having a downwardly extending lip thereon, and said sealing means includes a resilient ring member having a first generally upright portion and an integral generally horizontally extending flange portion, the intersection of both of said portions forming a lip bearing against the underside of said disc with a first space formed between the lip of said housing and the upright portion of said ring member and a second space formed between said flange portion and the flange of the upper portion of said housing.
17. A sprinkler head comprising: an outer housing; an inner housing coaxially mounted therein and moveable from a first position within said outer housing to a second position extended from said outer housing; a nozzle rotatably mounted at the upper end of said inner housing having a plurality of radiating fluid discharge passageways opening beyond said outer housing when said inner housing is extended out of said outer housing, said passageways being in fluid communication with the interior of said inner housing; biasing means operatively engaging said inner housing for biasing said inner housing to its first position; and impeller means associated with said inner housing in operative engagement with said nozzle for transmitting rotation of said impeller means to said nozzle, said impeller means including transmission means disposed within said inner housing, said transmission means being adapted to convert rapid rotation of said impeller means to slower rotation of said nozzle, said transission means having a portion sealed-off from the atmosphere with an expandable diaphragm disposed between said sealed-off portion and said impeller means, and a lubricating medium completely filling said sealed-off portion, said lubricting medium being free to selectively contract or expand thereby displacing said diaphragm in response to varying ambient conditions.
18. The sprinkler head of claim 17 wherein Said lubricating medium has a differing coefficient of expansion than the coefficient of expansion of the internal portions of said sealed-off portion.
19. In a sprinkler having a head mounting a nozzle for dispersing fluid through said head and out of said nozzle and impeller means associated with said head operatively engaging said nozzle for rotating said nozzle in response to said fluid passing through said head, said impeller means including transmission means for transmitting movement of said impeller means to said nozzle, the improvement comprising: sealing means for sealing off at least a portion of said transmission means from engagement by said fluid including a displaceable member separating said transmission means sealed-off portion from said fluid; and a lubricating medium completely filling the sealedoff portion of said transmission means, said lubricating medium being free to selectively contract or expand and thereby displace said member in response to varying ambient conditions encountered by said sprinkler.
20. In the sprinkler of claim 19, wherein said displaceable member is an expandable diaphragm.
US3854664B1 1973-03-30 1973-10-11 Expired - Lifetime US3854664B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US34644573 true 1973-03-30 1973-03-30
US3854664B1 US3854664B1 (en) 1973-03-30 1973-10-11

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3854664B1 US3854664B1 (en) 1973-03-30 1973-10-11
US06800794 USRE32386E (en) 1973-10-11 1985-11-22 Sprinkler systems

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Application Number Title Priority Date Filing Date
US06800794 Reissue USRE32386E (en) 1973-03-30 1985-11-22 Sprinkler systems

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US3854664A true US3854664A (en) 1974-12-17
US3854664B1 US3854664B1 (en) 1986-01-21

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Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934820A (en) * 1974-08-23 1976-01-27 Telsco Industries Sprinkler control
US4026471A (en) * 1976-04-01 1977-05-31 The Toro Company Sprinkler systems
FR2386355A1 (en) * 1977-04-04 1978-11-03 Toro Co A rotary sprinkler
EP0004954A1 (en) * 1978-04-18 1979-10-31 Purex Engineering Services a division of Brillo Manufacturing Company of Great Britain Limited Epicyclic nozzle drive, an orbital nozzle unit and a hydraulic cleaning head incorporating the same
US4202499A (en) * 1977-10-20 1980-05-13 Mathews Lester R Swimming pool cleaner
US4257440A (en) * 1979-05-21 1981-03-24 The Toro Company Injection pump for sprinkler systems
WO1982000962A1 (en) * 1980-09-15 1982-04-01 Corp L R Nelson Pop-up sprinkler
US4353507A (en) * 1979-08-27 1982-10-12 Kah Jr Carl L C Sprinkler head
US4471908A (en) * 1981-03-09 1984-09-18 The Toro Company Pattern sprinkler head
US4625914A (en) * 1985-05-16 1986-12-02 Rain Bird Consumer Products Mfg. Corp. Rotary drive sprinkler
US4625917A (en) * 1986-01-21 1986-12-02 Torney Gary D Variable spray sprinkler
US4681260A (en) * 1986-02-11 1987-07-21 The Toro Company Two piece variable stator for sprinkler nozzle flow control
US4687139A (en) * 1985-05-03 1987-08-18 Imperial Underground Sprinkler Co. Ball drive sprinkler
US4784325A (en) * 1987-04-01 1988-11-15 Rain Bird Consumer Products Mfg. Corp. Rotating stream sprinkler
US4784329A (en) * 1986-06-17 1988-11-15 L. R. Nelson Corporation Gear driven portable lawn sprinkler
US4787558A (en) * 1985-05-16 1988-11-29 Rain Bird Consumer Products Mfg. Corp. Rotary drive sprinkler
US4815662A (en) * 1987-11-23 1989-03-28 Hunter Edwin J Stream propelled rotary stream sprinkler unit with damping means
US4867379A (en) * 1986-06-26 1989-09-19 Hunter Edwin J Rotary stream sprinkler unit
US4898332A (en) * 1986-06-26 1990-02-06 Edwin J. Hunter Adjustable rotary stream sprinkler unit
US4932590A (en) * 1989-08-07 1990-06-12 Hunter Edwin J Rotary stream sprinkler unit with rotor damping means
US4939797A (en) * 1989-03-29 1990-07-10 Sally Ghiz Water delivery assembly for cleaning swimming pools
US4967961A (en) * 1986-06-26 1990-11-06 Hunter Edwin J Rotary stream sprinkler unit
US4971250A (en) * 1989-08-07 1990-11-20 Hunter Edwin J Rotary stream sprinkler unit with rotor damping means
US4972993A (en) * 1989-04-10 1990-11-27 Gardenamerica Corporation Vandal-proof oscillating irrigation sprinkler
US4986474A (en) * 1989-08-07 1991-01-22 Nelson Irrigation Corporation Stream propelled rotary pop-up sprinkler
US5058806A (en) * 1990-01-16 1991-10-22 Nelson Irrigation Corporation Stream propelled rotary pop-up sprinkler with adjustable sprinkling pattern
US5092523A (en) * 1989-02-21 1992-03-03 Sybron Chemicals, Inc. Magnetic drive tank cleaning apparatus
US5288022A (en) * 1991-11-08 1994-02-22 Nelson Irrigation Corporation Part circle rotator with improved nozzle assembly
EP0698417A3 (en) * 1994-08-24 1996-12-11 Gardena Kress & Kastner Gmbh Sprinkler for dispensing a fluid
US5640983A (en) * 1996-02-05 1997-06-24 Butterworth Systems, Inc. Tank cleaning device
US5797633A (en) * 1995-02-04 1998-08-25 Gardena Kress + Kastner Gmbh Hose connector, particularly for the connection of hoses, such as garden hoses
EP0925840A1 (en) * 1997-12-19 1999-06-30 Annovi e Reverberi S.r.l. Rotary nozzle wash lance
US5975430A (en) * 1998-06-10 1999-11-02 Aspen Earth Sprinkler device
US20030150934A1 (en) * 2002-02-12 2003-08-14 Lawson Kenneth L. Turbine speed control for rotary irrigation sprinklers
US20040195360A1 (en) * 2003-02-28 2004-10-07 Walker Samuel C. Rotating stream sprinkler with turbine speed governor
US20050000011A1 (en) * 2002-07-10 2005-01-06 Paul Swanson Pop-out water discharge device with a specialized outer enclosure
US20060278727A1 (en) * 2005-05-20 2006-12-14 K-Rain Manufacturing Corp. Pressure regulating nozzle assembly
US7322533B2 (en) 2005-02-28 2008-01-29 Glendale Grizzle Rotary stream sprinkler with adjustable deflector ring
US20080142618A1 (en) * 2006-12-14 2008-06-19 Rain Bird Corporation Variable Velocity Sprinkler Transmission
US20080308650A1 (en) * 2007-06-13 2008-12-18 Clark Michael L Gear Driven Sprinkler with Top Turbine
US20090108099A1 (en) * 2007-10-30 2009-04-30 Porter Lamonte D Rotary Stream Sprinkler Nozzle with Offset Flutes
US20090224070A1 (en) * 2008-03-07 2009-09-10 Clark Michael L Hydraulically Actuated Sprinkler Nozzle Cover
US20090321537A1 (en) * 2008-06-27 2009-12-31 Nelson Irrigation Corporation Dual-mode sprinkler head
US7988071B2 (en) 2007-10-30 2011-08-02 Bredberg Anthony J Lawn sprinkler
US20140027526A1 (en) * 2012-07-27 2014-01-30 Lee James Shadbolt Rotary nozzle
US9108206B1 (en) 2013-03-15 2015-08-18 Anthony J. Bredberg Water control system for sprinkler nozzle
US9192110B2 (en) 2010-08-11 2015-11-24 The Toro Company Central irrigation control system
US9227207B1 (en) 2013-03-15 2016-01-05 Anthony J. Bredberg Multi-nozzle cam driven sprinkler head
US9327297B2 (en) 2012-07-27 2016-05-03 Rain Bird Corporation Rotary nozzle
US9808813B1 (en) 2007-10-30 2017-11-07 Hunter Industries, Inc. Rotary stream sprinkler nozzle with offset flutes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526363A (en) * 1969-08-19 1970-09-01 Fred Hauser Sprinkler
US3645451A (en) * 1970-08-24 1972-02-29 Fred Hauser Sprinkler device
US3702678A (en) * 1971-08-19 1972-11-14 Fred Hauser Sprinkler

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3526363A (en) * 1969-08-19 1970-09-01 Fred Hauser Sprinkler
US3645451A (en) * 1970-08-24 1972-02-29 Fred Hauser Sprinkler device
US3702678A (en) * 1971-08-19 1972-11-14 Fred Hauser Sprinkler

Cited By (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3934820A (en) * 1974-08-23 1976-01-27 Telsco Industries Sprinkler control
US4026471A (en) * 1976-04-01 1977-05-31 The Toro Company Sprinkler systems
FR2386355A1 (en) * 1977-04-04 1978-11-03 Toro Co A rotary sprinkler
US4202499A (en) * 1977-10-20 1980-05-13 Mathews Lester R Swimming pool cleaner
EP0004954A1 (en) * 1978-04-18 1979-10-31 Purex Engineering Services a division of Brillo Manufacturing Company of Great Britain Limited Epicyclic nozzle drive, an orbital nozzle unit and a hydraulic cleaning head incorporating the same
US4257440A (en) * 1979-05-21 1981-03-24 The Toro Company Injection pump for sprinkler systems
US4353507A (en) * 1979-08-27 1982-10-12 Kah Jr Carl L C Sprinkler head
WO1982000962A1 (en) * 1980-09-15 1982-04-01 Corp L R Nelson Pop-up sprinkler
US4353506A (en) * 1980-09-15 1982-10-12 L. R. Nelson Corporation Pop-up sprinkler
US4471908A (en) * 1981-03-09 1984-09-18 The Toro Company Pattern sprinkler head
US4687139A (en) * 1985-05-03 1987-08-18 Imperial Underground Sprinkler Co. Ball drive sprinkler
US4625914A (en) * 1985-05-16 1986-12-02 Rain Bird Consumer Products Mfg. Corp. Rotary drive sprinkler
US4787558A (en) * 1985-05-16 1988-11-29 Rain Bird Consumer Products Mfg. Corp. Rotary drive sprinkler
US4625917A (en) * 1986-01-21 1986-12-02 Torney Gary D Variable spray sprinkler
US4681260A (en) * 1986-02-11 1987-07-21 The Toro Company Two piece variable stator for sprinkler nozzle flow control
US4784329A (en) * 1986-06-17 1988-11-15 L. R. Nelson Corporation Gear driven portable lawn sprinkler
US4967961A (en) * 1986-06-26 1990-11-06 Hunter Edwin J Rotary stream sprinkler unit
US4898332A (en) * 1986-06-26 1990-02-06 Edwin J. Hunter Adjustable rotary stream sprinkler unit
US4867379A (en) * 1986-06-26 1989-09-19 Hunter Edwin J Rotary stream sprinkler unit
US4784325A (en) * 1987-04-01 1988-11-15 Rain Bird Consumer Products Mfg. Corp. Rotating stream sprinkler
US4815662A (en) * 1987-11-23 1989-03-28 Hunter Edwin J Stream propelled rotary stream sprinkler unit with damping means
FR2623425A1 (en) * 1987-11-23 1989-05-26 Hunter Edwin Sprinkler rotary jet driven by the latter and comprising damping means
US5092523A (en) * 1989-02-21 1992-03-03 Sybron Chemicals, Inc. Magnetic drive tank cleaning apparatus
US4939797A (en) * 1989-03-29 1990-07-10 Sally Ghiz Water delivery assembly for cleaning swimming pools
US4972993A (en) * 1989-04-10 1990-11-27 Gardenamerica Corporation Vandal-proof oscillating irrigation sprinkler
US4971250A (en) * 1989-08-07 1990-11-20 Hunter Edwin J Rotary stream sprinkler unit with rotor damping means
US4986474A (en) * 1989-08-07 1991-01-22 Nelson Irrigation Corporation Stream propelled rotary pop-up sprinkler
US4932590A (en) * 1989-08-07 1990-06-12 Hunter Edwin J Rotary stream sprinkler unit with rotor damping means
US5058806A (en) * 1990-01-16 1991-10-22 Nelson Irrigation Corporation Stream propelled rotary pop-up sprinkler with adjustable sprinkling pattern
US5288022A (en) * 1991-11-08 1994-02-22 Nelson Irrigation Corporation Part circle rotator with improved nozzle assembly
EP0698417A3 (en) * 1994-08-24 1996-12-11 Gardena Kress & Kastner Gmbh Sprinkler for dispensing a fluid
US5718381A (en) * 1994-08-24 1998-02-17 Gardena Kress + Kastner Gmbh Sprinkler for discharging a fluid
US5797633A (en) * 1995-02-04 1998-08-25 Gardena Kress + Kastner Gmbh Hose connector, particularly for the connection of hoses, such as garden hoses
WO1997027951A3 (en) * 1996-02-05 1997-12-11 Butterworth System Inc Improved tank cleaning device
WO1997027951A2 (en) * 1996-02-05 1997-08-07 Butterworth Systems, Inc. Improved tank cleaning device
US5640983A (en) * 1996-02-05 1997-06-24 Butterworth Systems, Inc. Tank cleaning device
EP0925840A1 (en) * 1997-12-19 1999-06-30 Annovi e Reverberi S.r.l. Rotary nozzle wash lance
US6155494A (en) * 1997-12-19 2000-12-05 Annovi E Reverberi S.R.L. Rotary nozzle device for emitting a water jet
US5975430A (en) * 1998-06-10 1999-11-02 Aspen Earth Sprinkler device
US20030150934A1 (en) * 2002-02-12 2003-08-14 Lawson Kenneth L. Turbine speed control for rotary irrigation sprinklers
US6929194B2 (en) * 2002-02-12 2005-08-16 Rain Bird Corporation Turbine speed control for rotary irrigation sprinklers
US20050000011A1 (en) * 2002-07-10 2005-01-06 Paul Swanson Pop-out water discharge device with a specialized outer enclosure
US20040195360A1 (en) * 2003-02-28 2004-10-07 Walker Samuel C. Rotating stream sprinkler with turbine speed governor
US6942164B2 (en) * 2003-02-28 2005-09-13 Rain Bird Corporation Rotating stream sprinkler with turbine speed governor
EP1452234A3 (en) * 2003-02-28 2008-11-26 Rain Bird Corporation Rotating stream sprinkler with turbine speed governor
US7322533B2 (en) 2005-02-28 2008-01-29 Glendale Grizzle Rotary stream sprinkler with adjustable deflector ring
US20060278727A1 (en) * 2005-05-20 2006-12-14 K-Rain Manufacturing Corp. Pressure regulating nozzle assembly
US9573145B2 (en) * 2005-05-20 2017-02-21 Carl L. C. Kah, Jr. Pressure regulating nozzle assembly
US20080142618A1 (en) * 2006-12-14 2008-06-19 Rain Bird Corporation Variable Velocity Sprinkler Transmission
US7621464B2 (en) * 2006-12-14 2009-11-24 Rain Bird Corporation Variable velocity sprinkler transmission
US20120043398A1 (en) * 2007-06-13 2012-02-23 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
US8888019B2 (en) * 2007-06-13 2014-11-18 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
US20090108099A1 (en) * 2007-10-30 2009-04-30 Porter Lamonte D Rotary Stream Sprinkler Nozzle with Offset Flutes
US7988071B2 (en) 2007-10-30 2011-08-02 Bredberg Anthony J Lawn sprinkler
US9808813B1 (en) 2007-10-30 2017-11-07 Hunter Industries, Inc. Rotary stream sprinkler nozzle with offset flutes
US8282022B2 (en) 2007-10-30 2012-10-09 Hunter Industries, Inc. Rotary stream sprinkler nozzle with offset flutes
US8328117B2 (en) 2007-10-30 2012-12-11 Bredberg Anthony J Lawn sprinkler
US8567697B2 (en) 2007-10-30 2013-10-29 Anthony J. Bredberg Lawn sprinkler
US8602325B2 (en) 2008-03-07 2013-12-10 Hunter Industries, Inc. Hydraulically actuated sprinkler nozzle cover
US20090224070A1 (en) * 2008-03-07 2009-09-10 Clark Michael L Hydraulically Actuated Sprinkler Nozzle Cover
US7789323B2 (en) 2008-06-27 2010-09-07 Nelson Irrigation Corporation Dual-mode sprinkler head
US20090321537A1 (en) * 2008-06-27 2009-12-31 Nelson Irrigation Corporation Dual-mode sprinkler head
US9192110B2 (en) 2010-08-11 2015-11-24 The Toro Company Central irrigation control system
US9295998B2 (en) * 2012-07-27 2016-03-29 Rain Bird Corporation Rotary nozzle
US9327297B2 (en) 2012-07-27 2016-05-03 Rain Bird Corporation Rotary nozzle
US20140027526A1 (en) * 2012-07-27 2014-01-30 Lee James Shadbolt Rotary nozzle
US9227207B1 (en) 2013-03-15 2016-01-05 Anthony J. Bredberg Multi-nozzle cam driven sprinkler head
US9108206B1 (en) 2013-03-15 2015-08-18 Anthony J. Bredberg Water control system for sprinkler nozzle

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Effective date: 19840416

B1 Reexamination certificate first reexamination
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Effective date: 19851122