CA1053726A - Irrigation pipes with dripper units and method of its manufacture - Google Patents
Irrigation pipes with dripper units and method of its manufactureInfo
- Publication number
- CA1053726A CA1053726A CA254,174A CA254174A CA1053726A CA 1053726 A CA1053726 A CA 1053726A CA 254174 A CA254174 A CA 254174A CA 1053726 A CA1053726 A CA 1053726A
- Authority
- CA
- Canada
- Prior art keywords
- pipe
- units
- dripper
- irrigation
- outlet
- 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.)
- Expired
Links
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
ABSTRACT
A pipe suitable for use in drip irrigation, which pipe comprises piping and integral dripper units spaced at predetermined intervals along the length of the piping, the piping constituting outer sleeves of the dripper units and having an aperture in alignment with each of the dripper units, the dripper units having an inlet and an outlet, the inlet being in communication with the interior of the piping and the outlet being in communication with the aperture and the exterior of the piping.
A pipe suitable for use in drip irrigation, which pipe comprises piping and integral dripper units spaced at predetermined intervals along the length of the piping, the piping constituting outer sleeves of the dripper units and having an aperture in alignment with each of the dripper units, the dripper units having an inlet and an outlet, the inlet being in communication with the interior of the piping and the outlet being in communication with the aperture and the exterior of the piping.
Description
The present invention concerns a pipe suitable for use in drip irrigation with integrally built-in dripper units, a method of manufacture of such a pipe and a machine for producing such a pipe.
The invention concerns particularly an irrigation pipe with a ~ripper unit of the kind comprising a cylinder provided with a continuous groove on its peripher~l surfaces and being tightly surrounded by a sleeve, the groove having an integral inlet in the cylinder while an outlet therefrom is provided in the sleeve. The groove may be a continuous spiral, may have a labyrinth path or may be of any of the Xnown shapes, which reduce the pressure of the water from the ~upply pipe, so that it leaves the dripper unit in a trickle.
Such a dripper unit will hereinafter be referred to a~ "a dripper unit of the kind defined~.
A dripper unit of the kind defined has up to now been manufactured with screw threads at both ends or with any other suitable means, so that it could be connected to an irrigation pipe adapted for this purpose.
It is an object of the present invention to provide an irrigation pipe with a dripper unit of the kind defined in which the dripper units cons~itute an integral part of the pipe without the necessity of assembling them at the irriga-tion site. It is obvious that because of such a pipe much labour and time is saved when laying the pipe for irrigation, since the units do not have to be attached at the required ~paces.
According to one aspect of the present invention
The invention concerns particularly an irrigation pipe with a ~ripper unit of the kind comprising a cylinder provided with a continuous groove on its peripher~l surfaces and being tightly surrounded by a sleeve, the groove having an integral inlet in the cylinder while an outlet therefrom is provided in the sleeve. The groove may be a continuous spiral, may have a labyrinth path or may be of any of the Xnown shapes, which reduce the pressure of the water from the ~upply pipe, so that it leaves the dripper unit in a trickle.
Such a dripper unit will hereinafter be referred to a~ "a dripper unit of the kind defined~.
A dripper unit of the kind defined has up to now been manufactured with screw threads at both ends or with any other suitable means, so that it could be connected to an irrigation pipe adapted for this purpose.
It is an object of the present invention to provide an irrigation pipe with a dripper unit of the kind defined in which the dripper units cons~itute an integral part of the pipe without the necessity of assembling them at the irriga-tion site. It is obvious that because of such a pipe much labour and time is saved when laying the pipe for irrigation, since the units do not have to be attached at the required ~paces.
According to one aspect of the present invention
- 2 _ 10537Z6 there is provided a pipe ~uitable for use in drip irrigation which pipe comprises piping and dripper units of the kind defined at predetermined intervals along the length thereof, the piping constituting outer sleeves of the dripper units.
According to a second aspect of the present invention there is provided a method of producing by extru-sion a pipe suitable for use in drip irrigation, which method comprises feeding dripper units, during the extrusion of piping into an extruder at predetermined intervals, extruding the piping around the dripper units and making at least one aperture in the piping aligned with each of the dripper units.
According to a third aspect of the present invention there is provided a machine for producing a pipe suitable for use in drip irrigation, which machine comprises an extrusion means having an extruder nozzle for extruding piping, a storage unit for dripper units and a means for feeding the dripper units to the extruder nozzle so as to enable production of piping having dripper units at prede-termined intervals along the length thereof.
Preferably, the pipe is a continuous irrigation pipe.
For a better understanding of the present invention and to show how the same may be put into effect, reference will now be made, by way of example, to the accompanying drawings, in which:
Fig. 1 shows a longitudinal section of an irrigation pipe according to the invention, containing a dripper unit as hereinbefore defined.
Fig. 2 shows a schematic elevational view of a machine for manufacturing a pipe for drip irrigation according 1~537~'., to the invention, and Fig. 3 shows a side elevation illustrating the dripper feed mechanism.
Referring to the drawings, Figure 1 shows an extruded irrigation pipe 1 which serves as a sleeve of a dripper unit having a cylindrical part 2 and being provided with a peripheral helicoidal groove 3, it being understood that the groove may have a labyrinth path or be of any other shape which is adapted to reduce the pressure of the flow.
An inlet 4 made in the cylindrical part 2 leads from the interior of pipe 1 into groove 3 while an outlet 5 from the groove i8 provided in the pipe.
As can be seen in Fig. 1J pipe 1 is stretched somewhat over the cylinder 2, that is the pipe is of larger diameter in the region of cylinder 2. However, the internal dlameter of pipe 1 and cylinder 2 are egual, so that free flow of that part of the water which does not enter grooves
According to a second aspect of the present invention there is provided a method of producing by extru-sion a pipe suitable for use in drip irrigation, which method comprises feeding dripper units, during the extrusion of piping into an extruder at predetermined intervals, extruding the piping around the dripper units and making at least one aperture in the piping aligned with each of the dripper units.
According to a third aspect of the present invention there is provided a machine for producing a pipe suitable for use in drip irrigation, which machine comprises an extrusion means having an extruder nozzle for extruding piping, a storage unit for dripper units and a means for feeding the dripper units to the extruder nozzle so as to enable production of piping having dripper units at prede-termined intervals along the length thereof.
Preferably, the pipe is a continuous irrigation pipe.
For a better understanding of the present invention and to show how the same may be put into effect, reference will now be made, by way of example, to the accompanying drawings, in which:
Fig. 1 shows a longitudinal section of an irrigation pipe according to the invention, containing a dripper unit as hereinbefore defined.
Fig. 2 shows a schematic elevational view of a machine for manufacturing a pipe for drip irrigation according 1~537~'., to the invention, and Fig. 3 shows a side elevation illustrating the dripper feed mechanism.
Referring to the drawings, Figure 1 shows an extruded irrigation pipe 1 which serves as a sleeve of a dripper unit having a cylindrical part 2 and being provided with a peripheral helicoidal groove 3, it being understood that the groove may have a labyrinth path or be of any other shape which is adapted to reduce the pressure of the flow.
An inlet 4 made in the cylindrical part 2 leads from the interior of pipe 1 into groove 3 while an outlet 5 from the groove i8 provided in the pipe.
As can be seen in Fig. 1J pipe 1 is stretched somewhat over the cylinder 2, that is the pipe is of larger diameter in the region of cylinder 2. However, the internal dlameter of pipe 1 and cylinder 2 are egual, so that free flow of that part of the water which does not enter grooves
3 is permitted throu~h part 2.
The pipe of Fig. 1 is produced as can be seen in Fig. 2 in anfextruder 6 having a head 7 at an angle to the extension of the ~crew (not shown). This type of head 7 is known for producing cove~ed cables or sheathed wires.
If desired, a regular ~traight-line extruder head may be used which i8 adapted to feed the dripper unit to the nozzle at predetermined interval~.
Behind said head a dripper unit feed mechanism generally indicated by 8 is provided. This mechanism comprises a storage unit 9 in which a plurality of inner dripper parts 2 are disposed. These cylindrical parts 2 are fed into a position coaxial with the extruder nozzle 10 by a piston-~0~37Z~;
operated feed device 11 which may be actuated by hydraulic,pneumatic or other means.
At predetermined time periods,or~ i desired, at predetermined distances, i.e. after a predetermined length of pipe has been extruded, a dripper part 2 is fed into the extruder head 7 by means of a pu her mechanism 12, which may be operated by pneumatic, hydraulic or other means. When such a part 2 is inserted into the extruder head 7, the pipe is extruded around it through nozzle 10.
A sensing mechanism in combination with a drill, knife point or the like indicated generally at 13 is provided near the extrusion nozzle at a distance to permit the cooling of the pipe after its extrusion. This drill 13 makes an outlet 5 in the pipe of the wall in the required position.
If desired, two such mechanisms may be provided in diametrically opposite positions to make two apertures 5 in pipe 1 as shown in Fig. 1.
The control of the feed mechanism, push mechanism 12 and drilling mechanism 13 can be effected in any suitable manner, either by electrical, electronic, mechanical or the like control means.
It is, of course, understood, that the pipe together with its dripper unit constitutes pressure reducing means, which may be used where required for purposes other than irrigation.
The pipe of Fig. 1 is produced as can be seen in Fig. 2 in anfextruder 6 having a head 7 at an angle to the extension of the ~crew (not shown). This type of head 7 is known for producing cove~ed cables or sheathed wires.
If desired, a regular ~traight-line extruder head may be used which i8 adapted to feed the dripper unit to the nozzle at predetermined interval~.
Behind said head a dripper unit feed mechanism generally indicated by 8 is provided. This mechanism comprises a storage unit 9 in which a plurality of inner dripper parts 2 are disposed. These cylindrical parts 2 are fed into a position coaxial with the extruder nozzle 10 by a piston-~0~37Z~;
operated feed device 11 which may be actuated by hydraulic,pneumatic or other means.
At predetermined time periods,or~ i desired, at predetermined distances, i.e. after a predetermined length of pipe has been extruded, a dripper part 2 is fed into the extruder head 7 by means of a pu her mechanism 12, which may be operated by pneumatic, hydraulic or other means. When such a part 2 is inserted into the extruder head 7, the pipe is extruded around it through nozzle 10.
A sensing mechanism in combination with a drill, knife point or the like indicated generally at 13 is provided near the extrusion nozzle at a distance to permit the cooling of the pipe after its extrusion. This drill 13 makes an outlet 5 in the pipe of the wall in the required position.
If desired, two such mechanisms may be provided in diametrically opposite positions to make two apertures 5 in pipe 1 as shown in Fig. 1.
The control of the feed mechanism, push mechanism 12 and drilling mechanism 13 can be effected in any suitable manner, either by electrical, electronic, mechanical or the like control means.
It is, of course, understood, that the pipe together with its dripper unit constitutes pressure reducing means, which may be used where required for purposes other than irrigation.
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A continuous irrigation pipe with integrally built-in dripper units spaced at predetermined intervals having an aperture in alignment with each of said units, said dripper units having an inlet and an outlet, the inlet being in communication with the interior of the pipe and the outlet being in communication with the aperture and the exterior of the pipe.
2. The irrigation pipe of claim 1 wherein said dripper units have a peripheral helical groove and said drip-per units are tightly surrounded by said pipe which forms an outer sleeve around said dripper unit.
3. An irrigation pipe for drip irrigation com-prising a continuous pipe and dripper units disposed within said pipe at predetermined spaced intervals and said pipe constituting an outer sleeve for said units.
4. An irrigation pipe for drip irrigation com-prising a continuous pipe and pressure reducing dripper units disposed within said pipe at predetermined spaced intervals, said pipe being stretched over and being of larger diameter in the region of said units to accommodate said units, said pipe having an aperture in alignment with each of said drip-per units, said dripper units having an outlet and an inlet, the inlet being in communication with the interior of the pipe and the outlet being in communication with the aperture and the exterior of the pipe.
5. A dripper unit of claim 4 wherein the internal diameter of the dripper unit and the internal diameter of the pipe are about the same.
6. The pipe of claim 4 wherein said pressure reducing means comprises a groove on the peripheral surface thereof and the pipe tightly surrounding said pressure reducing means and forming a sleeve for said means.
7. The pressure reducing means of claim 4 com-prising a peripheral helical groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA254,174A CA1053726A (en) | 1976-06-07 | 1976-06-07 | Irrigation pipes with dripper units and method of its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA254,174A CA1053726A (en) | 1976-06-07 | 1976-06-07 | Irrigation pipes with dripper units and method of its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1053726A true CA1053726A (en) | 1979-05-01 |
Family
ID=4106138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA254,174A Expired CA1053726A (en) | 1976-06-07 | 1976-06-07 | Irrigation pipes with dripper units and method of its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1053726A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9485923B2 (en) | 2012-03-26 | 2016-11-08 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| US9743595B2 (en) | 2006-02-22 | 2017-08-29 | Rain Bird Corporation | Drip emitter |
| US9872444B2 (en) | 2013-03-15 | 2018-01-23 | Rain Bird Corporation | Drip emitter |
| US9877442B2 (en) | 2012-03-26 | 2018-01-30 | Rain Bird Corporation | Drip line and emitter and methods relating to same |
| US9877440B2 (en) | 2012-03-26 | 2018-01-30 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| US9883640B2 (en) | 2013-10-22 | 2018-02-06 | Rain Bird Corporation | Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines |
| USD811179S1 (en) | 2013-08-12 | 2018-02-27 | Rain Bird Corporation | Emitter part |
| US10285342B2 (en) | 2013-08-12 | 2019-05-14 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| US10375904B2 (en) | 2016-07-18 | 2019-08-13 | Rain Bird Corporation | Emitter locating system and related methods |
| US10440903B2 (en) | 2012-03-26 | 2019-10-15 | Rain Bird Corporation | Drip line emitter and methods relating to same |
| US10626998B2 (en) | 2017-05-15 | 2020-04-21 | Rain Bird Corporation | Drip emitter with check valve |
| US10631473B2 (en) | 2013-08-12 | 2020-04-28 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| USD883048S1 (en) | 2017-12-12 | 2020-05-05 | Rain Bird Corporation | Emitter part |
| US11051466B2 (en) | 2017-01-27 | 2021-07-06 | Rain Bird Corporation | Pressure compensation members, emitters, drip line and methods relating to same |
| US11422055B2 (en) | 2014-09-11 | 2022-08-23 | Rain Bird Corporation | Methods and apparatus for checking emitter bonds in an irrigation drip line |
| US11985924B2 (en) | 2018-06-11 | 2024-05-21 | Rain Bird Corporation | Emitter outlet, emitter, drip line and methods relating to same |
-
1976
- 1976-06-07 CA CA254,174A patent/CA1053726A/en not_active Expired
Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10842090B2 (en) | 2006-02-22 | 2020-11-24 | Rain Bird Corporation | Drip emitter |
| US9743595B2 (en) | 2006-02-22 | 2017-08-29 | Rain Bird Corporation | Drip emitter |
| US10440903B2 (en) | 2012-03-26 | 2019-10-15 | Rain Bird Corporation | Drip line emitter and methods relating to same |
| US9877442B2 (en) | 2012-03-26 | 2018-01-30 | Rain Bird Corporation | Drip line and emitter and methods relating to same |
| US9877441B2 (en) | 2012-03-26 | 2018-01-30 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| US9877440B2 (en) | 2012-03-26 | 2018-01-30 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| US11185021B2 (en) | 2012-03-26 | 2021-11-30 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| US9485923B2 (en) | 2012-03-26 | 2016-11-08 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| US9872444B2 (en) | 2013-03-15 | 2018-01-23 | Rain Bird Corporation | Drip emitter |
| US10285342B2 (en) | 2013-08-12 | 2019-05-14 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| USD826662S1 (en) | 2013-08-12 | 2018-08-28 | Rain Bird Corporation | Emitter inlet |
| USD811179S1 (en) | 2013-08-12 | 2018-02-27 | Rain Bird Corporation | Emitter part |
| US10631473B2 (en) | 2013-08-12 | 2020-04-28 | Rain Bird Corporation | Elastomeric emitter and methods relating to same |
| US10420293B2 (en) | 2013-10-22 | 2019-09-24 | Rain Bird Corporation | Methods and apparatus for transporting emitters and/or manufacturing drip line |
| US9883640B2 (en) | 2013-10-22 | 2018-02-06 | Rain Bird Corporation | Methods and apparatus for transporting elastomeric emitters and/or manufacturing drip lines |
| US11422055B2 (en) | 2014-09-11 | 2022-08-23 | Rain Bird Corporation | Methods and apparatus for checking emitter bonds in an irrigation drip line |
| US10375904B2 (en) | 2016-07-18 | 2019-08-13 | Rain Bird Corporation | Emitter locating system and related methods |
| US10750684B2 (en) | 2016-07-18 | 2020-08-25 | Rain Bird Corporation | Emitter locating system and related methods |
| US11051466B2 (en) | 2017-01-27 | 2021-07-06 | Rain Bird Corporation | Pressure compensation members, emitters, drip line and methods relating to same |
| US10626998B2 (en) | 2017-05-15 | 2020-04-21 | Rain Bird Corporation | Drip emitter with check valve |
| USD883048S1 (en) | 2017-12-12 | 2020-05-05 | Rain Bird Corporation | Emitter part |
| USD978637S1 (en) | 2017-12-12 | 2023-02-21 | Rain Bird Corporation | Emitter part |
| US11985924B2 (en) | 2018-06-11 | 2024-05-21 | Rain Bird Corporation | Emitter outlet, emitter, drip line and methods relating to same |
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