US3268173A - Pop-up sprinkler with slide connection - Google Patents

Pop-up sprinkler with slide connection Download PDF

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US3268173A
US3268173A US379132A US37913264A US3268173A US 3268173 A US3268173 A US 3268173A US 379132 A US379132 A US 379132A US 37913264 A US37913264 A US 37913264A US 3268173 A US3268173 A US 3268173A
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flow tube
collar
sprinkler
bore
tube
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Expired - Lifetime
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US379132A
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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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    • 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
    • B05B15/70—Arrangements for moving spray heads automatically to or from the working position
    • B05B15/72—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means
    • B05B15/74—Arrangements for moving spray heads automatically to or from the working position using hydraulic or pneumatic means driven by the discharged fluid

Definitions

  • a sprinkler having an axially slidable connection for sprinklers which includes a fixed collar and slidable tube so arranged that, except for the extended position of the tube, a flow passage is maintained between the tube and collar so as to flush the parts free of sand, mud or solids contained in the water, but which on full extension of the tube forms not only a fiuid tight seal but also holds the tube and the axis of a sprinkler carried thereby in concentric relation with the collar.
  • FIGURE 1 is a partial elevational partial sectional view of the pop-up sprinkler, showing particularly the slide connection in its retracted position and indicating by broken lines the raised position of the sprinkler head.
  • FIGURES 2, 3 and 4 are transverse sectional views taken respectively through 2 2, 3 3 and 4 4 of FIG- URE l.
  • FIGURE 5 is a fragmentary longitudinal sectional view taken through 5 5 of FIGURE 4 and showing the slide connection in its retracted position.
  • FIGURE 6 is a smiliar sectional View showing the slide connection in its extended position.
  • the sprinkler includes la sprinkler housing 1 preferably molded of plastic material and including at its lower end a hollow stem or sleeve 2.
  • the lower end of the hollow stem is provided with a fitting 3 for attachment to a water supply pipe, not shown.
  • the upper end of the hollow stem 2 is joined to an enlarged hollow stem 4 which, in turn, is further enlarged to form a sprinkler chamber 5.
  • the upper end of the hollow stem 2, which projects a short distance within the enlarged hollow stem 4, is internally screw-threaded to receive a collar 6 having an externally screw-threaded portion 7.
  • the collar ⁇ 6 is provided with a tapered bore 8 and is provided at its lower extremity with an annular seat 9.
  • the bore 8 is provided with a pair of axially extending diametrically disposed key slots 10.
  • the collar 6 is adapted to receive a flow tube 11 which is provided on diametrically opposite sides with key ribs 12 that mate with the key slots 10 so that the flow tube may slide axially in the collar 6 but is restrained against -rotation relative to the collar.
  • the fiow tube 11 is also provided with four tapered ribs 13 'arranged in diametrically opposite pairs. The ribs 13 mate with the walls of the tapered bore 8 when the flow tube is in its axially extended position. One pair of ribs 13 may be disposed in flanking relation with the key ribs 12 as shown best in FIGURE 2.
  • the lower extremity of the flow tube 11 is provided with an external flange 14 which forms a shoulder to support a seal ring 15 which engages the annular seat 9 when the flow tube is in its extended position.
  • the tapered ribs 13 and the key ribs 12 are notched adjacent the flange 14 Patented August 23, 1966 Fice to form means for retention of the seal ring 15 on the liange 14 as shown in FIGURE 5.
  • the upper end of the flow tube is provided with internal screw threads which receive the externally screwi threaded shank of a sprinkler head 16.
  • the sprinkler head may be conventional and may be of the type which rotates.
  • a pop-up sprinkler having an axially slidable connection and comprising:
  • a sprinkler housing including a sleeve having means at its lower end for connection to a water supply
  • sealing means at the lower end of said flow tube engageable with said seat when said flow tube is extended;
  • a pop-up sprinkler having an axially slidable connection and comprising:
  • a sprinkler housing including a sleeve having means at its lower end for connection to a water Supply;
  • a pop-up sprinkler comprising:
  • a tubular sprinkler housing having means at its lower end for connection to a water supply, walls defining an elongated upwardly tapering bore at its upper end, fand a seat at the inner end of said bore;
  • sealing means at the lower end of said ow tube for sealing engagement with said seat, when said flow tube is in its upper position;
  • a pop-up sprinkler according to claim 3, wherein:
  • said bore has at least one key slot, and a key rib

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  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Description

Aug. 23, 1966 R. B. COSTA 3,268,173
POP-UP SPRINKLER WITH SLIDE CONNECTION Filed June 30, 1964 INVENTOR. CO 3 7A BY 5M/ United States Patent O 3,268,173 PGP-UP SPRINKLER WETH SLIDE CONNECTION Robert B. Costa, Covina, Calif., assigner to Rain Bird Sprinkler Mfg. Corp., Glendora, Calif., a corporation of California Filed .lune 30, 1964, Ser. No. 379,132 4 Claims. (Cl. 239-206) This invention relates to pop-up sprinklers with slide connections and included in the objects of this invention are:
First, to provide a sprinkler having an axially slidable connection for sprinklers which includes a fixed collar and slidable tube so arranged that, except for the extended position of the tube, a flow passage is maintained between the tube and collar so as to flush the parts free of sand, mud or solids contained in the water, but which on full extension of the tube forms not only a fiuid tight seal but also holds the tube and the axis of a sprinkler carried thereby in concentric relation with the collar.
Second, to provide an axially slidable connection for pop-up sprinklers which utilizes a collar having a conical bore, and a tube having axially extending tapered ribs which, on axial extension of the tube, form bearing means securing the tube in coaxial relation lwith the collar.
With the above and other objects in view as may rappear hereinafter, reference is directed to the accompanying drawings in which:
FIGURE 1 is a partial elevational partial sectional view of the pop-up sprinkler, showing particularly the slide connection in its retracted position and indicating by broken lines the raised position of the sprinkler head.
FIGURES 2, 3 and 4 are transverse sectional views taken respectively through 2 2, 3 3 and 4 4 of FIG- URE l.
FIGURE 5 is a fragmentary longitudinal sectional view taken through 5 5 of FIGURE 4 and showing the slide connection in its retracted position.
FIGURE 6 is a smiliar sectional View showing the slide connection in its extended position.
The sprinkler includes la sprinkler housing 1 preferably molded of plastic material and including at its lower end a hollow stem or sleeve 2. The lower end of the hollow stem is provided with a fitting 3 for attachment to a water supply pipe, not shown. The upper end of the hollow stem 2 is joined to an enlarged hollow stem 4 which, in turn, is further enlarged to form a sprinkler chamber 5.
The upper end of the hollow stem 2, which projects a short distance within the enlarged hollow stem 4, is internally screw-threaded to receive a collar 6 having an externally screw-threaded portion 7. The collar `6 is provided with a tapered bore 8 and is provided at its lower extremity with an annular seat 9. The bore 8 is provided with a pair of axially extending diametrically disposed key slots 10.
The collar 6 is adapted to receive a flow tube 11 which is provided on diametrically opposite sides with key ribs 12 that mate with the key slots 10 so that the flow tube may slide axially in the collar 6 but is restrained against -rotation relative to the collar. The fiow tube 11 is also provided with four tapered ribs 13 'arranged in diametrically opposite pairs. The ribs 13 mate with the walls of the tapered bore 8 when the flow tube is in its axially extended position. One pair of ribs 13 may be disposed in flanking relation with the key ribs 12 as shown best in FIGURE 2.
The lower extremity of the flow tube 11 is provided with an external flange 14 which forms a shoulder to support a seal ring 15 which engages the annular seat 9 when the flow tube is in its extended position. The tapered ribs 13 and the key ribs 12 are notched adjacent the flange 14 Patented August 23, 1966 Fice to form means for retention of the seal ring 15 on the liange 14 as shown in FIGURE 5.
The upper end of the flow tube is provided with internal screw threads which receive the externally screwi threaded shank of a sprinkler head 16. The sprinkler head may be conventional and may be of the type which rotates.
Operation of the slide connection is as follows:
When the sprinkler head is in its -retracted position, substantial clearance is provided between the flow tube 11 and the collar 6. Thus on activating the sprinkler, some water washes upwardly through the collar while the flow tube 1 is rapidly forced upwardly to its sealing position. The tapered portions 13 do not wedge in the tapered bore, but iit freely so that the ring 15 may seal, yet, at the same time, the flow tube has minimal wobble when the sprinkler rotates. When the water pressure is shut off, the liow tube, weighted by the sprinkler head, falls freely.
While the particular embodiments of the present invention have been shown and described, it Iwill be obvious to those skilled in the Iart that changes and modifications may be made without departing from the invention in its broader aspects and, therefore, the aim in the appended claims is to cover all such changes and modifications as fall within the true spirit and scope of this invention.
I claim:
1. A pop-up sprinkler having an axially slidable connection and comprising:
(a) a sprinkler housing including a sleeve having means at its lower end for connection to a water supply;
(b) a collar secured to the upper end of said sleeve and having an elongated downwardly diverging tapered bore and a seat at its lower end;
(c) a ow tube extending downwardly through said collar and into said sleeve for axial movement between a retracted andan extended position;
(d) a sprinkler head carried by said flow tube;
(e) sealing means at the lower end of said flow tube engageable with said seat when said flow tube is extended;
(f) and tapered guide ribs on said flow tube extending axially from said sealing means for mating engagement with the tapered bore of said collar, when said liow tube is extended for holding said flow tube in -coaxial relation kwith said collar;
(g) said collar and iiow tube forming a flushing passage between and around said ribs therebetween, when said fiow tube is retracted.
2. A pop-up sprinkler having an axially slidable connection and comprising:
(a) a sprinkler housing including a sleeve having means at its lower end for connection to a water Supply;
(b) a collar secured to the upper end of said sleeve and having an elongated downwardly diverging bore, an axially extending key slot in said bore, and a seat at its lower end;
(c) a flow tube extending downwardly through said collar and into said sleeve for axial movement between a retracted and an extended position;
(d) a longitudinal key rib on said flow tube fitting said key slot to restrain said flow tube against rotation;
(e) a rotatable sprinkler head mounted on said flow tube;
(f) ysealing means at the lower end of said fiow tube engageable with said seat when said flow tube is eX- tended;
(g) and tapered guide ribs on said flow tube extending axially from said sealing means for mating engagement with the tapered bore of said collar, when said flow tube is extended, for holding said flow tube in coaxial relation with said collar;
(h) said collar and flow tube forming a flushing passage between and around said guide ribs therebetween, when said ow tube is retracted.
3. A pop-up sprinkler comprising:
(a) a tubular sprinkler housing having means at its lower end for connection to a water supply, walls defining an elongated upwardly tapering bore at its upper end, fand a seat at the inner end of said bore;
(b) a How tube slidable in said housing, between a lower and an upper position, and projecting through said bore;
(c) a sprinkler head carried by said llow tube;
(d) sealing means at the lower end of said ow tube for sealing engagement with said seat, when said flow tube is in its upper position;
(e) and a plurality of upwardly tapered guide ribs disposed on the outer surface of said ow tube to space said flow tube from the walls of said bore, for ow of flushing water between said flow tube and its upper position, said ribs mating with the walls of said bore to hold said ow tube in coaxial relation lwith said housing, when said ow tube is in its upper position.
4. A pop-up sprinkler, according to claim 3, wherein:
(a) said bore has at least one key slot, and a key rib,
dimensioned to be received in said key slot, is superposed on at least one of said guide ribs.
References Cited by the Examiner UNITED STATES PATENTS 1,726,490 8/ 1929 Irving et al 239-204 1,821,579 9/1931 Rader 239-206 2,744,786 5/ 1956 Whitehead 239-206 2,812,977 11/ 1957 Phillips 239-204 3,131,867 5/1964 Miller et al 239-206 X M. HENSON WOOD, I R., Primary Examiner.
the walls of said bore when said ow tube is below 20 V- C- WILKS, ASSl'Sfnf Examiner.

Claims (1)

  1. 2. A POP-UP SPRINKLER HAVING AN AXIALLY SLIDABLE CONNECTION AND COMPRISING: (A) A SPRINKLER HOUSING INCLUDING A SLEEVE HAVING MEANS AT ITS LOWER END FOR CONNECTION TO A WATER SUPPLY; (B) A COLLAR SECURED TO THE UPPER END OF SAID SLEEVE AND HAVING AN ELONGATED DOWNWARDLY DIVERGING BORE, AND AXIALLY EXTENDING KEY SLOT IN SAID BORE, AND A SEAT AT ITS LOWER END; (C) A FLOW TUBE EXTENDING DOWNWARDLY THROUGH SAID COLLAR AND INTO SAID SLEEVE FOR AXIAL MOVEMENT BETWEEN A RETRACTED AN AN EXTENDED POSITION; (D) A LONGITUDINAL KEY RIB ON SAID FLOW TUBE FITTING SAID KEY SLOT TO RESTRAIN SAID FLOW TUBE AGAINST ROTATION; (E) A ROTATABLE SPRINKLER HEAD MOUNTED ON SAID FLOW TUBE; (F) SEALING MEANS AT THE LOWER END OF SAID FLOW TUBE ENGAGEABLE WITH SAID SEAT WHEN SAID FLOW TUBE IS EXTENDED; (G) AND TAPERED GUIDE RIBS ON SAID FLOW TUBE EXTENDING AXIALLY FROM SAID SEALING MEANS FOR MATING ENGAGEMENT WITH THE TAPERED BORE OF SAID COLLAR, WHEN SAID FLOW TUBE IS EXTENDED, FOR HOLDING SAID FLOW TUBE IN COAXIAL RELATION WITH SAID COLLAR; (H) SAID COLLAR AND FLOW TUBE FORMING A FLUSHING PASSAGE BETWEEN AND AROUND SAID GUIDE RIBS THEREBETWEEN, WHEN SAID FLOW IS RETRACTED.
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404840A (en) * 1965-10-22 1968-10-08 Mahogany Corp Pop-up head for sprinkler system
US3404841A (en) * 1965-10-22 1968-10-08 Mahogany Corp Pop-up sprinkler assembly
US3503555A (en) * 1967-09-20 1970-03-31 Lockwood George Lawn sprinklers
US3526363A (en) * 1969-08-19 1970-09-01 Fred Hauser Sprinkler
US4078726A (en) * 1976-08-03 1978-03-14 The Toro Company Lawn sprinkler
US4234125A (en) * 1979-10-17 1980-11-18 Irrigation Specialties Company Pop-up sprinkler
US5226599A (en) * 1989-07-27 1993-07-13 Gardena Kress & Kastner Gmbh Flush sprinkler
US5267689A (en) * 1993-05-05 1993-12-07 Karl Forer Rotary sprinkler head having individually-adjustable deflector plates for watering irregularly-shaped areas
US5288022A (en) * 1991-11-08 1994-02-22 Nelson Irrigation Corporation Part circle rotator with improved nozzle assembly
US20080230628A1 (en) * 2007-03-21 2008-09-25 Mona-Lisa Alexander Stem Rotation Control for a Sprinkler and Methods Therefor
US20140203105A1 (en) * 2013-01-18 2014-07-24 Plastico Corporation Underground liftable low-flow sprinkler

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1726490A (en) * 1928-05-11 1929-08-27 Mueller Brass Co Lawn sprinkler
US1821579A (en) * 1929-11-18 1931-09-01 Mueller Brass Co Lawn sprinkler
US2744786A (en) * 1955-05-25 1956-05-08 Thomas E Whitehead Disappearing lawn sprinklers
US2812977A (en) * 1955-10-20 1957-11-12 Spra Rite Distributing Company Pop-up lawn sprinkler
US3131867A (en) * 1963-05-31 1964-05-05 J C Nees And Betty Nees Rotary pop-up sprinkler

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1726490A (en) * 1928-05-11 1929-08-27 Mueller Brass Co Lawn sprinkler
US1821579A (en) * 1929-11-18 1931-09-01 Mueller Brass Co Lawn sprinkler
US2744786A (en) * 1955-05-25 1956-05-08 Thomas E Whitehead Disappearing lawn sprinklers
US2812977A (en) * 1955-10-20 1957-11-12 Spra Rite Distributing Company Pop-up lawn sprinkler
US3131867A (en) * 1963-05-31 1964-05-05 J C Nees And Betty Nees Rotary pop-up sprinkler

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3404840A (en) * 1965-10-22 1968-10-08 Mahogany Corp Pop-up head for sprinkler system
US3404841A (en) * 1965-10-22 1968-10-08 Mahogany Corp Pop-up sprinkler assembly
US3503555A (en) * 1967-09-20 1970-03-31 Lockwood George Lawn sprinklers
US3526363A (en) * 1969-08-19 1970-09-01 Fred Hauser Sprinkler
US4078726A (en) * 1976-08-03 1978-03-14 The Toro Company Lawn sprinkler
US4234125A (en) * 1979-10-17 1980-11-18 Irrigation Specialties Company Pop-up sprinkler
US5226599A (en) * 1989-07-27 1993-07-13 Gardena Kress & Kastner Gmbh Flush sprinkler
US5288022A (en) * 1991-11-08 1994-02-22 Nelson Irrigation Corporation Part circle rotator with improved nozzle assembly
US5267689A (en) * 1993-05-05 1993-12-07 Karl Forer Rotary sprinkler head having individually-adjustable deflector plates for watering irregularly-shaped areas
US20080230628A1 (en) * 2007-03-21 2008-09-25 Mona-Lisa Alexander Stem Rotation Control for a Sprinkler and Methods Therefor
US7686236B2 (en) 2007-03-21 2010-03-30 Rain Bird Corporation Stem rotation control for a sprinkler and methods therefor
US20140203105A1 (en) * 2013-01-18 2014-07-24 Plastico Corporation Underground liftable low-flow sprinkler
US9089858B2 (en) * 2013-01-18 2015-07-28 Plastico Corporation Underground liftable low-flow sprinkler

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