EP1043077A2 - Adjustment screw for pop-up underground sprinkler nozzle - Google Patents

Adjustment screw for pop-up underground sprinkler nozzle Download PDF

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Publication number
EP1043077A2
EP1043077A2 EP00201226A EP00201226A EP1043077A2 EP 1043077 A2 EP1043077 A2 EP 1043077A2 EP 00201226 A EP00201226 A EP 00201226A EP 00201226 A EP00201226 A EP 00201226A EP 1043077 A2 EP1043077 A2 EP 1043077A2
Authority
EP
European Patent Office
Prior art keywords
adjustment screw
adjustment
pop
nozzle
head
Prior art date
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.)
Withdrawn
Application number
EP00201226A
Other languages
German (de)
French (fr)
Other versions
EP1043077A3 (en
Inventor
Gianfranco Roman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Claber SpA
Original Assignee
Claber SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Claber SpA filed Critical Claber SpA
Publication of EP1043077A2 publication Critical patent/EP1043077A2/en
Publication of EP1043077A3 publication Critical patent/EP1043077A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • 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

  • the present invention concerns an adjustment screw for nozzle of pop-up underground sprinkler.
  • underground sprinklers or pop-up sprinklers deliver water at a nozzle that is fixed to the mobile part of the sprinkler at the outlet of the usual terminal filter of the same and is therefore subjected to the characteristic up and down movement of sprinklers of that type.
  • the length of the spray of output water jet depends on the axial position of an adjustment screw that is arranged along the vertical axis of the nozzle in front of the outlet of the filter and is accessible from its outside.
  • the aforesaid adjustment screw has a cross slotted head or socket screw head at its internal end for its fixing to the nozzle and a slot for screwdriver for its adjustment from the outside at the end of the threading.
  • the slot for screwdriver makes currently available adjustment screws very fragile and in addition makes necessary the use of an adjustment tool different from the one for its fixing.
  • Object of the present invention has been to realise an adjustment screw for nozzle for pop-up underground sprinkler that has suitable properties of strength and that allows the use of a single tool for its fixing to the head and for its adjustment in service.
  • an adjustment screw comprising a head and a threaded shank that are provided with respective first and second engagement means for operating tools for the fixing and, respectively, the adjustment of the screw, characterized in that said first and second engagement means are made up of cavities for setscrew wrench engageable with the same operating tool.
  • the adjustment screw according to the invention realisable of stainless steel or other suitable material, is capable to resist the strains to which it is subject and at the same time it requires a single setscrew wrench for its assembly-disassembly and its adjustment.
  • the adjustment screw illustrated in Figures 1-4 where it is indicated by the numerical reference 1 as a whole, is made up of a head 2 and of a threaded shank 3, both of metal, preferably of stainless steel.
  • a central cavity 4 with hexagonal section (fig. 3) is made that is suitable to receive a setscrew wrench for the fixing of the screw 1 to the nozzle of an underground pop-up sprinkler.
  • an hexagonal cavity 5 (fig. 4) that is axially lined up with the cavity 4 and is suitable to receive a setscrew wrench for the adjustment of the screw 1 on the nozzle of the sprinkler and the consequent adjustment of the length of the spray of water that is delivered by the same nozzle.
  • the two cavities 4 and 5 have identical shape and identical dimensions, so that they can receive an identical setscrew wrench.
  • FIGS 5, 6 and 7 show an adjustment screw 1 as the one in Figures 1-4 as screwed in an axial threaded hole of a central body 6 of a spray nozzle 7 provided with output holes 11 and with an output mouth 12, that is fixed to the upper end of the mobile part 8 of a pop-up underground sprinkler.
  • the assembly is such that the head 2 of the adjustment screw 1, with his fixing cavity 4, is located inside the sprinkler and extends into the output cone 9 of the filter 10 of the same sprinkler, while the adjustment cavity 5 is accessible from the outside.

Landscapes

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

Abstract

An adjustment screw (1) for pop-up underground sprinkler nozzle, comprises a head (2) and a threaded shank (3). On the top of the head (2) and at the opposite end of the threaded shank (3) there are provided axially lined up cavities (4, 5) that are engageable with a same setscrew wrench for the fixing and, respectively, the adjustment of the screw inside the nozzle (7).

Description

  • The present invention concerns an adjustment screw for nozzle of pop-up underground sprinkler.
  • As known, underground sprinklers or pop-up sprinklers deliver water at a nozzle that is fixed to the mobile part of the sprinkler at the outlet of the usual terminal filter of the same and is therefore subjected to the characteristic up and down movement of sprinklers of that type.
  • The length of the spray of output water jet depends on the axial position of an adjustment screw that is arranged along the vertical axis of the nozzle in front of the outlet of the filter and is accessible from its outside.
  • Normally the aforesaid adjustment screw has a cross slotted head or socket screw head at its internal end for its fixing to the nozzle and a slot for screwdriver for its adjustment from the outside at the end of the threading.
  • The slot for screwdriver makes currently available adjustment screws very fragile and in addition makes necessary the use of an adjustment tool different from the one for its fixing.
  • Object of the present invention has been to realise an adjustment screw for nozzle for pop-up underground sprinkler that has suitable properties of strength and that allows the use of a single tool for its fixing to the head and for its adjustment in service.
  • According to the invention such object has been reached with an adjustment screw comprising a head and a threaded shank that are provided with respective first and second engagement means for operating tools for the fixing and, respectively, the adjustment of the screw, characterized in that said first and second engagement means are made up of cavities for setscrew wrench engageable with the same operating tool.
  • In this way the adjustment screw according to the invention, realisable of stainless steel or other suitable material, is capable to resist the strains to which it is subject and at the same time it requires a single setscrew wrench for its assembly-disassembly and its adjustment.
  • The characteristics of the present invention will be made even more evident by the following detailed description of an embodiment thereof that is illustrated as a non limiting example in the enclosed drawings in which:
  • Figure 1 shows an adjustment screw according to the invention in axial section;
  • Figure 2 shows the same screw in a side view;
  • Figure 3 shows the same screw in top plan with reference to Figure 1;
  • Figure 4 shows the same screw in bottom plan with reference to Figure 1;
  • Figure 5 shows in axial section according to line V-V in Figure 6 a nozzle for underground pop-up sprinkler that uses an adjustment screw according to the present invention;
  • Figure 6 shows the aforesaid nozzle in top plan with reference to Figure 5;
  • Figure 7 shows the same nozzle in cross section according to line VII-VII in Figure 5.
  • The adjustment screw illustrated in Figures 1-4, where it is indicated by the numerical reference 1 as a whole, is made up of a head 2 and of a threaded shank 3, both of metal, preferably of stainless steel.
  • On the top of the head 2 a central cavity 4 with hexagonal section (fig. 3) is made that is suitable to receive a setscrew wrench for the fixing of the screw 1 to the nozzle of an underground pop-up sprinkler.
  • At the opposite end of the threaded shank 3 there is also made an hexagonal cavity 5 (fig. 4) that is axially lined up with the cavity 4 and is suitable to receive a setscrew wrench for the adjustment of the screw 1 on the nozzle of the sprinkler and the consequent adjustment of the length of the spray of water that is delivered by the same nozzle.
  • The two cavities 4 and 5 have identical shape and identical dimensions, so that they can receive an identical setscrew wrench.
  • Figures 5, 6 and 7 show an adjustment screw 1 as the one in Figures 1-4 as screwed in an axial threaded hole of a central body 6 of a spray nozzle 7 provided with output holes 11 and with an output mouth 12, that is fixed to the upper end of the mobile part 8 of a pop-up underground sprinkler.
  • As it can be observed from Figure 5, the assembly is such that the head 2 of the adjustment screw 1, with his fixing cavity 4, is located inside the sprinkler and extends into the output cone 9 of the filter 10 of the same sprinkler, while the adjustment cavity 5 is accessible from the outside.
  • By inserting a setscrew wrench in the adjustment cavity 5 it is therefore possible to adjust the degree of insertion of the head 2 of the adjustment screw 1 in the output cone of the filter of the sprinkler and therefore the length of the spray of water output by the nozzle 7.

Claims (4)

  1. Adjustment screw (1) for pop-up underground sprinkler nozzle, comprising a head (2) and a threaded shank (3) provided with respective first and second engagement means (4, 5) for operating tools for the fixing and, respectively, the adjustment of the screw, characterized in that said first and second engagement means (4, 5) consist of cavities for setscrew wrench that are engageable with the same operating tool.
  2. Adjustment screw according to claim 1, characterized in that said cavities (4, 5) have identical shape and identical dimensions.
  3. Adjustment screw according to claim 1 or 2, characterized in that said cavities (4, 5) are axially lined up on the top of the head (2) and at the opposite end of the threaded shank (3).
  4. Adjustment screw according to any one of claims 1, 2 or 3, characterized in that it is made of stainless steel.
EP00201226A 1999-04-07 2000-04-04 Adjustment screw for pop-up underground sprinkler nozzle Withdrawn EP1043077A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI990192U 1999-04-07
IT1999MI000192U IT246625Y1 (en) 1999-04-07 1999-04-07 ADJUSTMENT SCREW FOR UNDERGROUND UNDERGROUND SPRINKLER HEAD

Publications (2)

Publication Number Publication Date
EP1043077A2 true EP1043077A2 (en) 2000-10-11
EP1043077A3 EP1043077A3 (en) 2003-08-13

Family

ID=11381714

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00201226A Withdrawn EP1043077A3 (en) 1999-04-07 2000-04-04 Adjustment screw for pop-up underground sprinkler nozzle

Country Status (4)

Country Link
EP (1) EP1043077A3 (en)
AU (1) AU2522500A (en)
IL (1) IL135418A0 (en)
IT (1) IT246625Y1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007139806A3 (en) * 2006-05-25 2008-04-03 Zodiac Pool Care Inc Adjustable flow nozzles
US8651400B2 (en) 2007-01-12 2014-02-18 Rain Bird Corporation Variable arc nozzle
US8672242B2 (en) 2009-05-29 2014-03-18 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US8695900B2 (en) 2009-05-29 2014-04-15 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US8783582B2 (en) 2010-04-09 2014-07-22 Rain Bird Corporation Adjustable arc irrigation sprinkler nozzle configured for positive indexing
US8789768B2 (en) 2008-10-09 2014-07-29 Rain Bird Corporation Sprinkler with variable arc and flow rate
US9079202B2 (en) 2012-06-13 2015-07-14 Rain Bird Corporation Rotary variable arc nozzle
US9314952B2 (en) 2013-03-14 2016-04-19 Rain Bird Corporation Irrigation spray nozzle and mold assembly and method of forming nozzle
US10322423B2 (en) 2016-11-22 2019-06-18 Rain Bird Corporation Rotary nozzle
US11059056B2 (en) 2019-02-28 2021-07-13 Rain Bird Corporation Rotary strip nozzles and deflectors
US11154877B2 (en) 2017-03-29 2021-10-26 Rain Bird Corporation Rotary strip nozzles
US11247219B2 (en) 2019-11-22 2022-02-15 Rain Bird Corporation Reduced precipitation rate nozzle
US11406999B2 (en) 2019-05-10 2022-08-09 Rain Bird Corporation Irrigation nozzle with one or more grit vents

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8925837B2 (en) 2009-05-29 2015-01-06 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US9427751B2 (en) 2010-04-09 2016-08-30 Rain Bird Corporation Irrigation sprinkler nozzle having deflector with micro-ramps
US9504209B2 (en) 2010-04-09 2016-11-29 Rain Bird Corporation Irrigation sprinkler nozzle
US9174227B2 (en) 2012-06-14 2015-11-03 Rain Bird Corporation Irrigation sprinkler nozzle
US9327297B2 (en) 2012-07-27 2016-05-03 Rain Bird Corporation Rotary nozzle
US9295998B2 (en) 2012-07-27 2016-03-29 Rain Bird Corporation Rotary nozzle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790481A (en) * 1987-01-04 1988-12-13 Gardenamerica Corporation Pop-up irrigation sprinkler
US4801051A (en) * 1984-03-26 1989-01-31 Nordson Corporation Flow control device for a fluid dispensing apparatus
US5556036A (en) * 1994-10-26 1996-09-17 Hunter Industries Incorporated Adjustable arc spinkler nozzle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4801051A (en) * 1984-03-26 1989-01-31 Nordson Corporation Flow control device for a fluid dispensing apparatus
US4790481A (en) * 1987-01-04 1988-12-13 Gardenamerica Corporation Pop-up irrigation sprinkler
US5556036A (en) * 1994-10-26 1996-09-17 Hunter Industries Incorporated Adjustable arc spinkler nozzle

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007139806A3 (en) * 2006-05-25 2008-04-03 Zodiac Pool Care Inc Adjustable flow nozzles
US7770815B2 (en) 2006-05-25 2010-08-10 Zodiac Pool Care, Inc. Adjustable flow nozzles
US8651400B2 (en) 2007-01-12 2014-02-18 Rain Bird Corporation Variable arc nozzle
US8789768B2 (en) 2008-10-09 2014-07-29 Rain Bird Corporation Sprinkler with variable arc and flow rate
US8672242B2 (en) 2009-05-29 2014-03-18 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US8695900B2 (en) 2009-05-29 2014-04-15 Rain Bird Corporation Sprinkler with variable arc and flow rate and method
US8783582B2 (en) 2010-04-09 2014-07-22 Rain Bird Corporation Adjustable arc irrigation sprinkler nozzle configured for positive indexing
US9079202B2 (en) 2012-06-13 2015-07-14 Rain Bird Corporation Rotary variable arc nozzle
US9314952B2 (en) 2013-03-14 2016-04-19 Rain Bird Corporation Irrigation spray nozzle and mold assembly and method of forming nozzle
US10322423B2 (en) 2016-11-22 2019-06-18 Rain Bird Corporation Rotary nozzle
US11154881B2 (en) 2016-11-22 2021-10-26 Rain Bird Corporation Rotary nozzle
US11154877B2 (en) 2017-03-29 2021-10-26 Rain Bird Corporation Rotary strip nozzles
US11059056B2 (en) 2019-02-28 2021-07-13 Rain Bird Corporation Rotary strip nozzles and deflectors
US11406999B2 (en) 2019-05-10 2022-08-09 Rain Bird Corporation Irrigation nozzle with one or more grit vents
US12053791B2 (en) 2019-05-10 2024-08-06 Rain Bird Corporation Irrigation nozzle with one or more grit vents
US11247219B2 (en) 2019-11-22 2022-02-15 Rain Bird Corporation Reduced precipitation rate nozzle
US11660621B2 (en) 2019-11-22 2023-05-30 Rain Bird Corporation Reduced precipitation rate nozzle

Also Published As

Publication number Publication date
IT246625Y1 (en) 2002-04-09
AU2522500A (en) 2000-10-12
EP1043077A3 (en) 2003-08-13
ITMI990192U1 (en) 2000-10-07
IL135418A0 (en) 2001-05-20
ITMI990192V0 (en) 1999-04-07

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