US3515351A - Impact motor driven pop-up sprinkler - Google Patents

Impact motor driven pop-up sprinkler Download PDF

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Publication number
US3515351A
US3515351A US3515351DA US3515351A US 3515351 A US3515351 A US 3515351A US 3515351D A US3515351D A US 3515351DA US 3515351 A US3515351 A US 3515351A
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Prior art keywords
sprinkler
motor
motor case
provided
impact
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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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Robert B Costa
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Rain Bird Corp
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Rain Bird Corp
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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

Description

June 2., 1970 R. B. COSTA 3,515,

IMPACT MOTOR DRIVEN POP-UP SPRINKLER Filed Sept. 11, 1968 2 Sheets-Sheet 1 j a 1 c l5 Z i a 7 If ii -,a 1||||||||m I NVENTOR E0556? 5 C0574 June 2, 1970 R. B. cos-m 3,515,351

IMPACT MOTOR DRIVEN POP-UP SPRINKLER Filed Sept. 11, 1968 z Sheets-Sheet 2 g l 7-\ Q I 46 f a z a g 46 5 1 2:65 F a Q P 5 ill 4 5.2.1

----- I f; 3a

\ INVENTOR A 05587 [5. ("as 74 United States Patent O U.S. Cl. 239-206 6 Claims ABSTRACT OF THE DISCLOSURE A p0p-up sprinkler utilizing an impact type of drive encased in a motor case of fixed dimensions and capable of limited axial movement to raise the spray nozzle when in operation.

BACKGROUND AND SUMMARY OF THE INVENTION The present invention is related to a rotating sprinkler utilizing the type of water motor disclosed in Pat. No. 3,315,898. In the construction there illustrated, the motor chamber is elongated in order to permit the spray nozzle to rise. This type of motor has proven to be a most feasible means for rotating sprinkler heads, but, as disclosed, is limited in its application.

The present invention has, inherently, a wider range of application, as indicated by the following objects:

First, to provide a pop-up type of rotating sprinkler utilizing an impact type of water motor in which the Water motor is contained in a case of fixed dimension minimizing the required axial length of the rotor and the impact armature, the case being connected to the sprinkler head for axial movement as a unit therewith.

Second, to provide a sprinkler as indicated in the preceding object, wherein the sprinkler head and case may be constructed to travel axially a short distance or a substantial distance, or be fixed axially without change in the motor.

Third, to provide a sprinkler of the type indicated in the accompanying objects in which the motor case may be provided with a cover on which may be mounted a deflector so that the resulting spray from the sprinkler head may cover a preselected portion of a circle, such as a three-quarter, one-half or one-quarter circle, although the sprinkler head makes a full circle rotation; the cap being adjustable circumferentially to cause the spray to discharge in the desired direction.

Fourth, to provide a sprinkler of this type in which the axially movable sprinkler motor case, is contained in a housing having a cover provided with a small aperture through which a sprinkler stern connected to the rotor extends and retracts, to minimize interference by surrounding plants.

Fifth, to provide a sprinkler as indicated in the preceding object which incorporates a novel means including guides on the cover of the housing and on the motor case which automatically interengage as the cover is screwthreaded in place to restrain the motor case against rotation.

DESCRIPTION OF THE FIGURES FIG. 1 is a plan view of the impact motor driven popup sprinkler.

FIG. 2 is a sectional view thereof, taken through 22 of FIG. 1, with the internal mechanism shown in elevation.

FIG. 3 is an enlarged transverse sectional view, taken through 3-3 of FIG. 2.

FIG. 4 is an enlarged fragmentary longitudinal sectional view, taken through 44 of FIG. 3, and showing the internal mechanism.

Patented June 2, 1970 FIG. 5 is an edge view of the swirl plate.

FIG. 6 is an enlarged longitudinal sectional view showing a modified embodiment of the pop-up sprinkler.

FIGS. 7 and 8 are transverse sectional views taken through the same plane but in directions 7-7 and 8-8, respectively.

FIG. 9 is a fragmentary plan view of the swirl plate.

Reference is first directed to FIGS. 1 through 5. The sprinkler herein illustrated includes a housing 1, which forms a cylindrical cavity 2, having a bottom wall 3, provided with a constricted opening 4. Below the bottom wall, the housing is provided with an integral, internally screwthreaded extension 5, for attachment to a riser pipe, not shown. One side Wall of the cavity 2 is provided with a keyway 6. The upper extremity of the housing is provided with an external flange 7.

The cylindrical cavity 2 receives a cylindrical motor case 8, having a cylindrical motor cavity 9 therein. Screwthreaded into the bottom of the motor case 8 is a stem 10, which extends downwardly through the constricted opening 4, and is provided with an enlarged lower end 11, forming an upwardly facing shoulder on which rests a seal ring 12.

Projecting from the side wall of the motor case 8 is a key pin 13 which is received in the keyway 6. The upper end of the motor case is provided with an external flange 14 and the upper portion of the cylindrical cavity 2 is counter bored to form a shoulder 15 on which the flange rests when the motor case 8 is in its retracted position within the housing, as shown in FIG. 2.

Near its bottom end, the cylindrical motor cavity 9 receives a swirl plate 16 in the form of a disk having helically pitched slots 17 formed in its periphery so that when the swirl plate is pressed into the bottom portion of the motor cavity, helical passages are formed which extend through the swirl plate. The swirl plate clears the upper end of the stem 10 so that. water may flow upwardly through the stem and through the slots 17.

The upper end of the motor cavity 9 is provided with a slight counter bore forming a shoulder on which rests a cover plate 18, having a peripheral groove which receives a seal ring 19. Above the cover plate, the wall of the cavity 9 is provided with an annular groove 20, which receives a split retainer ring 21 to hold the cover plate in place.

The motor case receives a rotor 22, having a lower stem 23 and an upper stem 24. The stems journal in coaxial bearing openings provided in the centers of the swirl plate 16 and the cover plate 18. Within the motor cavity, the rotor is enlarged to form an impact armature 25, preferably having three sides, joined by rounded apices 26 which form impact ribs.

The rotor is provided with a bore 27, which extends up wardly from its lower end to a point near its upper end, and communicates with a pair of diametrically disposed and upwardly directed nozzle orifices 28. The bore 27 is also intersected by ports 29 which extend inwardly from the sides of the impact armature 25. InterpOsed between the impact armature 25 and the cover plate 18 is a thrust washer set 30 which may include a pair of rubber washers separated by a low friction washer such as a polytetrafiuorethylene so as to provide a limited degree of friction. A spring 25a urges the armature upwardly.

The impact armature 25 is surrounded by an impact or drive ring 31 which is square in plan, having rounded corners 32. The spacing between the corners 32 and the adjacent apices 26 are essentially equal.

The sprinkler may be adapted for use as a full circle or part-circle sprinkler. If a part-circle sprinkler is desired, the cover plate 18 is provided with a hollow, semi-cylindrical boss 33, having an inturned flange 34. The boss may 3 occupy a half-circle as shown of a quarter-circle or a three-quarter circle.

Operation of the sprinkler shown in FIGS. 1 through 5 is as follows:

When water pressure is applied, the motor case 8 and stem 10 are forced upwardly to the dotted line position shown in FIG. 2. Some water flows upwardly into the bore 27; the rest of the water is diverted to the slots 17 and enter the motor cavity 9 in a circular path. The rotating water passing upwardly outside the drive ring 31 causes the drive ring to rotate and on rotating to strike the apices of the impact armature 25. With each impact, the rotor is turned slightly with the result that the rotor turns slowly. The motivating water flows upwardly over the top of the drive ring and into the ports 29 for ultimate discharge through the nozzle orifices 28.

If a full circle operation is desired, the boss 33 is omitted and the pin 13 may be omitted. If a part cricle operation is desired, the disk is provided with a boss 33 of appropriate arcuate extent. As the nozzle orifices rotate, water from the nozzle directed toward the boss is redeflected in the desired direction. The water on being redirected loses considerable velocity so that it falls near the sprinkler, whereas the unimpeded water is discharged a greater distance.

Reference is now directed to FIGS 6 through 9. The construction here illustrated includes a housing 35, which forms a cylindrical cavity 36 and is provided with a bottom wall 37, having an internally screwthreaded opening 38 for connection to a riser pipe. Within the cavity 36 near its lower end, there is provided a shoulder 39.

The housing receives a motor case 40 in the form of an inverted cup, forming a cylindrical motor cavity 41. The upper or closed end of the motor case is provided with an upwardly directed sleeve 42. The lower end of the motor case 40 is internally screwthreaded to receive the upper margins of a strainer cup 43, having a plurality of perforations. Secured between the motor case 40 and the strainer cup 43, is a swirl plate 44, which may be in the form of a stamping having downwardly depressed swirl vanes and a central journal aperture 46.

The motor case receives a rotor 47, having an impact armature 48 similar to the impact armature 25. The rotor includes a lower stem 49, and an upper stem 50, and is provided with a central bore 51 which terminates near the upper end of the upper stem, and is provided with a laterally and upwardly directed sprinkler orifice 52. The upper stem journals in the sleeve 42. As in the first described structure, the impact armature is urged upwardly in the motor cavity by a spring 53, and a set of washers 54 is interposed between the upper end of the impact armature and the upper wall of the motor cavity to provide a controlled minimal amount of friction. As in the first described structure, the impact armature is provided with radial ports 55. Also, as in the first described structure, the impact armature is surrounded by an impact or drive ring 56.

The upper end of the housing 35 is internally screwthreaded to receive a cover 57, having a seal ring 58. The cover is provided with a central bore 59, which receives the sleeve 42 and the upper stem 50. Surrounding the lower extremity of the bore 59 is a seat 60, which when the motor case is in its upper position, is engaged by a seal washer 61 surrounding the sleeve 42 and its base end.

The cover 57 is provided with a pair of essentially radially directed guide webs 62 and the motor case 40 is provided with a pair of upwardly extending guide bosses 63. When the cover is secured in place, the guide webs and guide bosses overlap axially. The guide bosses are on the same side of the webs so that they function to keep the motor case 40 from rotating relative to the cover. In order to secure the cover in place, one guide web and its corresponding boss overlap a greater extent than the other set so that as the cover 57 is screwthreaded into the housing 35, one web and boss set interengage before the other so as to turn the motor case with the cover and permit the other web and boss set to move relatively into axially overlapping relation.

While particular embodiments of this invention have been shown and described, it is not intended to limit the same to the details of the constructions set forth, but instead, the invention embraces such changes, modifications and equivalents of the various parts and their relationships as come within the purview of the appended claims.

I claim:

1. A rotatable water sprinkler, comprising:

(a) a motor case having relatively fixed upper and lower axial ends defining therebetween a motor chamber, said axial ends having coaxial journal openings;

(b) a rotor having upper and lower stems journalled in said openings, and a polygonal impact armature within said motor chamber; said rotor having a bore extending from its lower end and terminating adjacent its upper end, a spray orifice at the upper end of said rotor communicating with said bore, and ports extending through said armature and communicating with said bore;

(0) a polygonal rotary drive ring surrounding said impact armature;

(d) means defining water passages through a wall of said motor chamber directed to cause rotary movement of water in said motor chamber thereby to cause rotary motion of said drive ring and multiple impacts of said ring on said armature to eifect rotation of said rotor;

(e) and means for supplying water to the bore of said rotor and to said passages.

2. A sprinkler, as defined in claim 1, wherein:

(a) said water supplying means includes a housing surrounding said motor case;

(b) key and keyway means for guiding said motor case and rotor axially as a unit within said housing thereby to permit said spray orifice to be raised and lowered a predetermined distance.

3. A sprinkler, as defined in claim 1, wherein:

(a) said water passage defining means is a disk fixed in said motor case and includes helically directed passages adjacent the periphery thereof.

4. A sprinkler, as defined in claim 1, wherein:

(a) the upper end of said motor case is a plate adjustable in orientation about the axis of said rotor;

(b) the upper stem of said rotor protrudes from said plate;

(c) and a deflector partially encases said stem to limit the are through which said spray orifice discharges.

5. A sprinkler, as defined in claim 1, wherein:

(a) said Water supplying means includes a housing surrounding said motor case and an apertured cover for said housing;

(b) and said motor case includes a sleeve slidable in said cover aperture and journaling the upper stem of said rotor.

6. A sprinkler, as defined in claim 5, wherein:

(a) said cover and said motor case are provided with axially overlapping guide means to restrain said motor case against rotation when said cover is fixed.

References Cited UNITED STATES PATENTS M. H'ENSON WOOD, JR., Primary Examiner T. C. CULP, JR., Assistant Examiner

US3515351A 1968-09-11 1968-09-11 Impact motor driven pop-up sprinkler Expired - Lifetime US3515351A (en)

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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3580506A (en) * 1969-03-21 1971-05-25 Rain Bird Sprinkler Mfg Bearing for impact motor driven sprinkler
US3580508A (en) * 1969-03-25 1971-05-25 Rain Bird Sprinkler Mfg Motor for rotating jet sprinkler
US4322860A (en) * 1980-10-06 1982-04-06 Shasta Industries, Inc. Pool cleaning head with rotary pop-up jet producing element
US4353506A (en) * 1980-09-15 1982-10-12 L. R. Nelson Corporation Pop-up sprinkler
EP0236301A1 (en) * 1985-09-12 1987-09-16 SHEVACH, Yoram Water sprinkler
US4781328A (en) * 1987-03-26 1988-11-01 Rain Bird Consumer Mfg. Corp. Rotating stream nozzle
US5222669A (en) * 1992-02-24 1993-06-29 Anthony Manufacturing Corp., Industrial Products, Div. Retaining cover and sealing assembly for pop-up sprinklers
US5251343A (en) * 1992-05-05 1993-10-12 Paramount Leisure Industries, Inc. Swimming pool pop-up fitting
US20040194201A1 (en) * 2003-04-03 2004-10-07 Goettl John M. Cam operated pop-up swimming pool cleaning nozzle
US20040217210A1 (en) * 2003-04-16 2004-11-04 Goettl John M. Partially rotating above surface nozzle
US20050194464A1 (en) * 2004-03-08 2005-09-08 Kenneth Bruninga Adjustable sprinkler
US20070210115A1 (en) * 2006-03-13 2007-09-13 Peter Stadelhofer Discharger for a flowable medium
US20090108088A1 (en) * 2007-10-30 2009-04-30 Bredberg A J Lawn sprinkler
US7819338B1 (en) 2008-04-09 2010-10-26 Paramount Pool & Spa Systems Cam operated swimming pool cleaning nozzle
US7979924B1 (en) 2003-04-03 2011-07-19 Gsg Holdings, Inc. Method of cleaning a swimming pool
US8308081B1 (en) 2003-04-03 2012-11-13 Gsg Holdings, Inc. Cam operated swimming pool cleaning nozzle
US8533874B1 (en) 2003-03-19 2013-09-17 Gsg Holdings, Inc. Pool cleaning system with incremental partial rotating head
US8959739B1 (en) 2013-09-17 2015-02-24 Gsg Holding, Inc. Pool cleaning system with incremental partial rotating head and aiming tool
US9108206B1 (en) 2013-03-15 2015-08-18 Anthony J. Bredberg Water control system for sprinkler nozzle
US9227207B1 (en) 2013-03-15 2016-01-05 Anthony J. Bredberg Multi-nozzle cam driven sprinkler head
US9267303B1 (en) 2007-02-15 2016-02-23 Gsg Holdings, Inc. Pool cleaning system with incremental partial rotating head

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981481A (en) * 1957-05-17 1961-04-25 Rain Jet Corp Sprinkler
US2990120A (en) * 1960-03-28 1961-06-27 Elmer N Reynolds Sprinkler head
US3272437A (en) * 1964-07-27 1966-09-13 Gen Sprinkler Company Rotary pop-up sprinkler employing a fixed cam
US3315898A (en) * 1965-04-05 1967-04-25 Lyntone Engineering Inc Water motor for sprinklers
US3323725A (en) * 1965-02-01 1967-06-06 Rain Jet Corp Pop-up lawn sprinkler with regulating valve

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981481A (en) * 1957-05-17 1961-04-25 Rain Jet Corp Sprinkler
US2990120A (en) * 1960-03-28 1961-06-27 Elmer N Reynolds Sprinkler head
US3272437A (en) * 1964-07-27 1966-09-13 Gen Sprinkler Company Rotary pop-up sprinkler employing a fixed cam
US3323725A (en) * 1965-02-01 1967-06-06 Rain Jet Corp Pop-up lawn sprinkler with regulating valve
US3315898A (en) * 1965-04-05 1967-04-25 Lyntone Engineering Inc Water motor for sprinklers

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3580506A (en) * 1969-03-21 1971-05-25 Rain Bird Sprinkler Mfg Bearing for impact motor driven sprinkler
US3580508A (en) * 1969-03-25 1971-05-25 Rain Bird Sprinkler Mfg Motor for rotating jet sprinkler
US4353506A (en) * 1980-09-15 1982-10-12 L. R. Nelson Corporation Pop-up sprinkler
US4322860A (en) * 1980-10-06 1982-04-06 Shasta Industries, Inc. Pool cleaning head with rotary pop-up jet producing element
US4466142A (en) * 1980-10-06 1984-08-21 Shasta Industries, Inc. Pool cleaning head with rotary pop-up jet producing element
EP0236301A1 (en) * 1985-09-12 1987-09-16 SHEVACH, Yoram Water sprinkler
US4781328A (en) * 1987-03-26 1988-11-01 Rain Bird Consumer Mfg. Corp. Rotating stream nozzle
US5222669A (en) * 1992-02-24 1993-06-29 Anthony Manufacturing Corp., Industrial Products, Div. Retaining cover and sealing assembly for pop-up sprinklers
US5251343A (en) * 1992-05-05 1993-10-12 Paramount Leisure Industries, Inc. Swimming pool pop-up fitting
US8533874B1 (en) 2003-03-19 2013-09-17 Gsg Holdings, Inc. Pool cleaning system with incremental partial rotating head
US20040194201A1 (en) * 2003-04-03 2004-10-07 Goettl John M. Cam operated pop-up swimming pool cleaning nozzle
US8308081B1 (en) 2003-04-03 2012-11-13 Gsg Holdings, Inc. Cam operated swimming pool cleaning nozzle
US6848124B2 (en) 2003-04-03 2005-02-01 Paramount Leisure Industries, Inc. Cam operated pop-up swimming pool cleaning nozzle
US20050023373A1 (en) * 2003-04-03 2005-02-03 Goettl John M. Method for operating a pop-up cleaning nozzle for a pool or spa
US7578010B2 (en) 2003-04-03 2009-08-25 Paramount Leisure Industries, Inc. Method for operating a pop-up cleaning nozzle for a pool or spa
US8056155B1 (en) 2003-04-03 2011-11-15 Gsg Holdings, Inc. Method of cleaning a swimming pool
US7979924B1 (en) 2003-04-03 2011-07-19 Gsg Holdings, Inc. Method of cleaning a swimming pool
US7481377B2 (en) 2003-04-16 2009-01-27 Paramount Leisure Industries, Inc. Method for cleaning pool surface
US20050167520A1 (en) * 2003-04-16 2005-08-04 Paramount Leisure Industries, Inc. Method for cleaning pool surface
US6899285B2 (en) 2003-04-16 2005-05-31 Paramount Leisure Industries, Inc. Partially rotating above surface nozzle
US20040217210A1 (en) * 2003-04-16 2004-11-04 Goettl John M. Partially rotating above surface nozzle
US20050194464A1 (en) * 2004-03-08 2005-09-08 Kenneth Bruninga Adjustable sprinkler
US20070210115A1 (en) * 2006-03-13 2007-09-13 Peter Stadelhofer Discharger for a flowable medium
US9267303B1 (en) 2007-02-15 2016-02-23 Gsg Holdings, Inc. Pool cleaning system with incremental partial rotating head
US7988071B2 (en) 2007-10-30 2011-08-02 Bredberg Anthony J Lawn sprinkler
US20090108088A1 (en) * 2007-10-30 2009-04-30 Bredberg A J Lawn sprinkler
US8567697B2 (en) 2007-10-30 2013-10-29 Anthony J. Bredberg Lawn sprinkler
US8328117B2 (en) 2007-10-30 2012-12-11 Bredberg Anthony J Lawn sprinkler
US7819338B1 (en) 2008-04-09 2010-10-26 Paramount Pool & Spa Systems Cam operated swimming pool cleaning nozzle
US9108206B1 (en) 2013-03-15 2015-08-18 Anthony J. Bredberg Water control system for sprinkler nozzle
US9227207B1 (en) 2013-03-15 2016-01-05 Anthony J. Bredberg Multi-nozzle cam driven sprinkler head
US8959739B1 (en) 2013-09-17 2015-02-24 Gsg Holding, Inc. Pool cleaning system with incremental partial rotating head and aiming tool

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