CA1076821A - Device for trickle irrigation - Google Patents
Device for trickle irrigationInfo
- Publication number
- CA1076821A CA1076821A CA280,562A CA280562A CA1076821A CA 1076821 A CA1076821 A CA 1076821A CA 280562 A CA280562 A CA 280562A CA 1076821 A CA1076821 A CA 1076821A
- Authority
- CA
- Canada
- Prior art keywords
- hoses
- hose
- water
- sprinkler
- openings
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0231—Tunnels, i.e. protective full coverings for rows of plants
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/247—Watering arrangements
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Nozzles (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
A B S T R A C T
The present invention provides a device for trickle irrigation constituting one integral unit being made from the same material consisting in a hose (herein called "water carrying hose") said hose being provided at predetermined distances with openings, which openings are on a line parallel to the axis of the water-carrying hose, from which openings extend individual small hoses (herein called "sprinkling hoses") provided with dripping outlets wherein all adjacent conduit segments of said hoses have common fused seams. The device enables delivery of water to field crops at a slow, uniform rate over long runs.
The present invention provides a device for trickle irrigation constituting one integral unit being made from the same material consisting in a hose (herein called "water carrying hose") said hose being provided at predetermined distances with openings, which openings are on a line parallel to the axis of the water-carrying hose, from which openings extend individual small hoses (herein called "sprinkling hoses") provided with dripping outlets wherein all adjacent conduit segments of said hoses have common fused seams. The device enables delivery of water to field crops at a slow, uniform rate over long runs.
Description
1076~32~L
The present invention relates to a device for trickle irrigation.
It has been known for a long time that efficient means are required for applying water to field crops at or helow surface level. It is impGrtant that the delivery of water should be at a slow uniform rate over long runs in particular for such crops which are grown in rows. This is in particular important in Israel which has a shortage of water.
It has been found that the above problem can be solved to a large extend by way of trickle irrigation. There are Xnown several dripper units for trickle irrigation which are part of or are connected to the water conduit, e.g. a pipe, hose or ~ `
the like. Such devices are descrbied, inter alia, in the follow-ing Isreal Patent Specifications Nos.: 13787 published January 26, 1961, 21004 published January 26, 1967, 25197, published January 2q, 1970, all granted to Ischayahu Blass; 34566 published October 29, 1972 and granted to Isaac Rinkewich; 36901 published November 10, 1975, granted to The Standard Institution of Israel & Yigal Gilaad. However, although one has achieved with many of said dripper units the desired degree of the trickle irriga-tion, they are not entirely satisfactory as a separate dripper unit has to be manufactured and only when this unit is introduced into the water conduit or is added thereto a complete dripper system is presented.
These known dripper systems have an additional drawback in that they are quite expensive. Especially with seasonal crops where the ground has to be w~rked at the end of the season, they have at the end of the season to be collected, stored and to be used again. A one-time use with this system would be a big waste.
68Z~L , However, for many crops, in particular cotton, sugar cane, melons and the like, where large areas are concerned, the collection of the system is quite complicated and cumbersome and thus one-time use is very desirable.
It has therefore been desirable to design a device which constitutes integrally both the water conduit and the dripper unit. Said device should be relatively cheap, so that a one-time use would be economical.
The most simple device would be a hose being perforated at pre-determined distances. However, such hose is not practical because no precise and slow uniform rate of trickling can be obtained therewith. Moreover, the very small holes re~uired cause a very long undesirable spray and in addition they will easily clog.
There is also known a device comprising a hose being perforated at pre-determined distances, into which perforations there are introduced long Pxtending thin hoses. This device is very unsatisfactory as its manufacture is very complicated and its use is combersome. Moreover, in view of the fact that there are connection points special-care has to be taken that said points should be water-tight.
In U.S. Specification No. 3698195 issued October 17, 1972 to Richard D. Chapin there is described a water distributing hose comprising an outer tubular wall and an inner wall spaced interiorly from the outer wall and defining an inner tubular :
member fixed to the outer tubular wall for generally line contact therewith along the full length thereof. Both walls are perfor-ated, normally in opposed relation to the line contact there-between with the outer wall having a substantially greater number of openings. The inner tube functions so as to carry water ~ ..
.~ . ' ~ ;..
. . ~ . :: . . .;
1~768Z~
along the full length of the hose and maintain to a substantial degree, the pressure thereof. The water discharge through the inner wall openings and subsequently flows to and through the outer wall openings immediately adjacent to each inner wall open-ing fora trickle-like discharge therefrom.
Another device has been suggested comprising a main hose serving for carrying the water adjacent to which extends a hose having a smaller diameter, the common walls of both hoses being perforated, the smaller tube being perforated agaln~at its outer wall, the number of the holes at the outer wall being more numerous than those at the common wall.
However, both said devices are not entirely satisfactory as again they are based on very small holes having the same drawbacks set out above. Moreover the manufacture of said devices is quite complicated and expensive.
From U.S. Patent Specification No. 3887138 issued June 3, 1975 to Gideon Gilead, there is known a trickle or drip irriga-tion device which comprises two hose like elements inserted into one another, one of said elements being constituted by a helically grooved hose of conventional design, the inner member being tightly held in the outer element, openings being provided in the inner element and an outflow or outflows at desired intervals, from the outer element. This arrangement too is not entirely satisfactory as it comprises two hoses which have to be combined into one.
~" ' .
~0768Z~L
Thus, it is complicated and relatively expen~iveO
It has there~ore been desirable to design a de~ice ~or trickle irrigation, constituting integrPlly both the water conduit and the drlpper unit which device o~ercomes the above disadvantsges and which is relatively cheap ao that a one-~ime use is econom~csl.
The present in~ent1on thus consi~ts in a device for trickle irrigation constituting an integral u~it being ~ade ~rom the a~e mat~rial con~tituting a hoee (hereina~ter caIled "~ater carrying hosen) said hose being provided at pre-determined distancea with openings, which ope~l~g~ are on a line parPllel to the a~s o~ the water carrying hosw, ~ro~
which openings extend individual small hoses (herei~after called "sprinkling hoses~) provided with dripping outlets9 wherein all adjacent ~ondult segments o~ said hosee ha~e common ~used seams.
The sprinkiing ho~ must be considerably long and the diameter thereo~ must be ~mall in order that the preesure ie rsduced from the inlet to the sprinkling hose up to the outlet ther~oi, 60 that the desired 910w rate oi deliver~ i8 achleved.
It is there~ore sd~antageous to take care that although the ~ater conduit in the aprin~ ghoee i8 quite long, eaid hose ~hould be compsct, i.e. have a helical, labyrinth or the like suitable ~o:rm.
The ~umber of sprinkling hoses and their length, diameter and ~orms thereo~ are not critical ~eatures o~
the present invention. They msy be determined by the speci~lo requirements needed of the device.
~7~8Z~
~ioreover, the sprinkling hoses may be arranged on more than one side of the water carrying hose, i.e., there may be 2, 3 or even more parallel liIles of sprinkling hosesO
In a pre~erred embodiment of the device according to the present invention the diameter of the inlet to- and o~
the outlet from the sprinkling hoses are a little bit larger that the diameter of said hoses. By this clogging at the inlet and spraying at the outlet is avoided to a large extentO
The outlet of the sprinkler hose may, if desired, sub-divide into two hoses, which each has its separate outlet.
These subdivided hoses may again each separate into two different ho~es. ~his is being sometimes done in order to r obtain smaller delivery rates without lengthening the sprinkler hose or without reducing the diameter thereof.
In order to ascertain that no clogging can occur a filtering device may be connected to the inlet of the water carrying hose.
The size of the diameter of both the water carrying as ~ell as the spr~nkling hose is not a critical feature of the device according to the present invention. The diameter of the w~ter carrying hose may be, e.g. 10-30 mm.
The diameter o~ the sprinkling hose is a function of the required dripping rate and also a function of the length and form of the sprinkling hose. Preferably it ~arie~ from 0.5 ~m to 3 mm. Its length preferably varies from 1-10 meters.
The device according to the present invention overcomes substantially the drawbacks of the k~own devices. It enables a steady, slow uniform rate of ~low and can be produced in _ 6 - ~76~Z~
a simple manu~acturing process as one integral unit, in one manufacturing operation. ~loreover, it is pliablel can be bent and thus be packed, stored and transported compsctly. Finally in vie~ o~ the fact that the walls of the hoses may be quite thin, e.g. a~out 0.5-1.0 mm, the device is quite cheap and the one-time use is economical.
Thus, at the end of the season it must not b~ collected ~nd stored and may be left in the field to be destroyed by s~mple and cheap conventional methods.
~ he materi~l $rom which the device is made is not a critic~l feature of the present invention. ~ny su~table pliable plsstic or non-plastic material in sheets, foils, sleeves or film~, which csn be fused together e.g. glued, pressure fused, heat-fusion ~elded, supersonic fused, rsdation ~used or the like may be utilised. There are prefe-rsbly utilised certain polyolefines, e.g. polyethylsne, polypropylene a~d polybutylene or mi2tures thereof.
The device according to the present in~ention is preferably manufactured by ~usion of one or two thin sheets, foils, sleeves or films of a suitable plastic or non-plastic material, e.g. by way o~ glueing, pressure fusing, hot-~u~ on ~elding, supersonic fusion, radiation fu~ion or the like, whereby the entire device ~s formed in one operation.
The device according to the present invention can be an integral part of other devices, e.g. a covering ~or glass houses, for young ~prouts, e.t.c~ Such combination, i.e. covering and device ~or trickle irrigation according to the pre6ent invention mag be manufactured as one u~it from one or two sheets of the pla~tic or non-pla6tio material.
1076821 l~
The present invention will now be described with reference to the accompanying drawings without being limited by them. In these drawings:
Fig.l shows a perspective view of a device according to the present invention being under pressure, i.e. through which water flows:
Fig.2a, b and c show longitudinal and cross-sectional views respectively of the device according to Fig.l; ', ;~
Fig 3a and b, 4a and b and ~a and b show longitudinal and cross-sectional views, respectively, of various embodiments of the device according to the present invention;
Figs. 6a and b show longitudinal and cross-sectional views, respectifely, of an embodiment of the device according to the present invention wherein the sprinkler hose subdi-vides into two sprinkler hoses.
- Figs. 7a and b show longltudinal and cross-sectional views, respectively, of an embodiment of the device according to the present invention being provided with two lines of ' sprinkler hoses; and Figs.8and 9 show schematic views of devices according to the present invention being integral parts of plastic cover-ings for green houses or the like. I ;
All the above views illustrate sections of thecomplete devices. The corresponding parts are referenced by the same numerals. For sake of clarity in each line of sprinkler hoses the parts of only one hose are referenced. All seams between adjacent hoses are illustrated by shading lines.
~7~8Z~
The cross section views shown in Figs. 2b, ~b, 4b, 5b, 6b ~nd 7b are shown along line A-~ in the corresponding Figs. and illustrate the devices under water pressure.
The cross-section view shown in Fig.2c is show~ also along line A-A, but in the collapsed position for reeling.
~ he devices illustrated in all Figs~ comprise water carry~ng hose 1, sprinkler hoses 2, inlets 3, from water carrying hose 1 to spr nkler hose 2; and outlets 4 from spri n~l er hose6 2.
The ~ater in sprinkler hoses 2 ~10WB as indicated by the arro~s.
The sprin~ler hose~ 2 o~ the embodiments shown in Fig8. 1-5 have various ~orm~. That in ~igs.4 is straight ~hersa~ those in the other ~igs. are be~t a~ ~ho~n.
~ he sprinkler hoses 2 o~ the em~odiment shô~n in ~ig~6 subdi~de~ into two and ha~ thus outlet~ 4' and 4n.
The e~bodi~snt shown in ~ig~.7 has two lines o~ sprinkler hos~s 21 and 2~ parallcl the axi8 0~ water carrying ho~e 1 having ths same shape as that illustrated in Fig~. 1 a~d 2.
The device illustrated in Fig.8 show~ plastic co~ering 5 proper being made o~ one plastic sheet bei~g in combination ~ith a dripping device as lllustrated in Figs.l and 2, Said drippi~g device (shown under water p~essura~ is arranged out~ide the plastio covering and dripping ~rom the inside thereo~0 The device il:Lustrated in Fig.9 8how9 a pla~tic coveri~g being made ~rom two sheets 6a and 6b in combination with a dr~pping device a~ illustrated in Fig 1 and 2. Said dripplng device (sho~n u~der water pressure) i~ arranged and drippi~g ~rom thè same sld~ o~ the plastic coveringO ~
The present invention relates to a device for trickle irrigation.
It has been known for a long time that efficient means are required for applying water to field crops at or helow surface level. It is impGrtant that the delivery of water should be at a slow uniform rate over long runs in particular for such crops which are grown in rows. This is in particular important in Israel which has a shortage of water.
It has been found that the above problem can be solved to a large extend by way of trickle irrigation. There are Xnown several dripper units for trickle irrigation which are part of or are connected to the water conduit, e.g. a pipe, hose or ~ `
the like. Such devices are descrbied, inter alia, in the follow-ing Isreal Patent Specifications Nos.: 13787 published January 26, 1961, 21004 published January 26, 1967, 25197, published January 2q, 1970, all granted to Ischayahu Blass; 34566 published October 29, 1972 and granted to Isaac Rinkewich; 36901 published November 10, 1975, granted to The Standard Institution of Israel & Yigal Gilaad. However, although one has achieved with many of said dripper units the desired degree of the trickle irriga-tion, they are not entirely satisfactory as a separate dripper unit has to be manufactured and only when this unit is introduced into the water conduit or is added thereto a complete dripper system is presented.
These known dripper systems have an additional drawback in that they are quite expensive. Especially with seasonal crops where the ground has to be w~rked at the end of the season, they have at the end of the season to be collected, stored and to be used again. A one-time use with this system would be a big waste.
68Z~L , However, for many crops, in particular cotton, sugar cane, melons and the like, where large areas are concerned, the collection of the system is quite complicated and cumbersome and thus one-time use is very desirable.
It has therefore been desirable to design a device which constitutes integrally both the water conduit and the dripper unit. Said device should be relatively cheap, so that a one-time use would be economical.
The most simple device would be a hose being perforated at pre-determined distances. However, such hose is not practical because no precise and slow uniform rate of trickling can be obtained therewith. Moreover, the very small holes re~uired cause a very long undesirable spray and in addition they will easily clog.
There is also known a device comprising a hose being perforated at pre-determined distances, into which perforations there are introduced long Pxtending thin hoses. This device is very unsatisfactory as its manufacture is very complicated and its use is combersome. Moreover, in view of the fact that there are connection points special-care has to be taken that said points should be water-tight.
In U.S. Specification No. 3698195 issued October 17, 1972 to Richard D. Chapin there is described a water distributing hose comprising an outer tubular wall and an inner wall spaced interiorly from the outer wall and defining an inner tubular :
member fixed to the outer tubular wall for generally line contact therewith along the full length thereof. Both walls are perfor-ated, normally in opposed relation to the line contact there-between with the outer wall having a substantially greater number of openings. The inner tube functions so as to carry water ~ ..
.~ . ' ~ ;..
. . ~ . :: . . .;
1~768Z~
along the full length of the hose and maintain to a substantial degree, the pressure thereof. The water discharge through the inner wall openings and subsequently flows to and through the outer wall openings immediately adjacent to each inner wall open-ing fora trickle-like discharge therefrom.
Another device has been suggested comprising a main hose serving for carrying the water adjacent to which extends a hose having a smaller diameter, the common walls of both hoses being perforated, the smaller tube being perforated agaln~at its outer wall, the number of the holes at the outer wall being more numerous than those at the common wall.
However, both said devices are not entirely satisfactory as again they are based on very small holes having the same drawbacks set out above. Moreover the manufacture of said devices is quite complicated and expensive.
From U.S. Patent Specification No. 3887138 issued June 3, 1975 to Gideon Gilead, there is known a trickle or drip irriga-tion device which comprises two hose like elements inserted into one another, one of said elements being constituted by a helically grooved hose of conventional design, the inner member being tightly held in the outer element, openings being provided in the inner element and an outflow or outflows at desired intervals, from the outer element. This arrangement too is not entirely satisfactory as it comprises two hoses which have to be combined into one.
~" ' .
~0768Z~L
Thus, it is complicated and relatively expen~iveO
It has there~ore been desirable to design a de~ice ~or trickle irrigation, constituting integrPlly both the water conduit and the drlpper unit which device o~ercomes the above disadvantsges and which is relatively cheap ao that a one-~ime use is econom~csl.
The present in~ent1on thus consi~ts in a device for trickle irrigation constituting an integral u~it being ~ade ~rom the a~e mat~rial con~tituting a hoee (hereina~ter caIled "~ater carrying hosen) said hose being provided at pre-determined distancea with openings, which ope~l~g~ are on a line parPllel to the a~s o~ the water carrying hosw, ~ro~
which openings extend individual small hoses (herei~after called "sprinkling hoses~) provided with dripping outlets9 wherein all adjacent ~ondult segments o~ said hosee ha~e common ~used seams.
The sprinkiing ho~ must be considerably long and the diameter thereo~ must be ~mall in order that the preesure ie rsduced from the inlet to the sprinkling hose up to the outlet ther~oi, 60 that the desired 910w rate oi deliver~ i8 achleved.
It is there~ore sd~antageous to take care that although the ~ater conduit in the aprin~ ghoee i8 quite long, eaid hose ~hould be compsct, i.e. have a helical, labyrinth or the like suitable ~o:rm.
The ~umber of sprinkling hoses and their length, diameter and ~orms thereo~ are not critical ~eatures o~
the present invention. They msy be determined by the speci~lo requirements needed of the device.
~7~8Z~
~ioreover, the sprinkling hoses may be arranged on more than one side of the water carrying hose, i.e., there may be 2, 3 or even more parallel liIles of sprinkling hosesO
In a pre~erred embodiment of the device according to the present invention the diameter of the inlet to- and o~
the outlet from the sprinkling hoses are a little bit larger that the diameter of said hoses. By this clogging at the inlet and spraying at the outlet is avoided to a large extentO
The outlet of the sprinkler hose may, if desired, sub-divide into two hoses, which each has its separate outlet.
These subdivided hoses may again each separate into two different ho~es. ~his is being sometimes done in order to r obtain smaller delivery rates without lengthening the sprinkler hose or without reducing the diameter thereof.
In order to ascertain that no clogging can occur a filtering device may be connected to the inlet of the water carrying hose.
The size of the diameter of both the water carrying as ~ell as the spr~nkling hose is not a critical feature of the device according to the present invention. The diameter of the w~ter carrying hose may be, e.g. 10-30 mm.
The diameter o~ the sprinkling hose is a function of the required dripping rate and also a function of the length and form of the sprinkling hose. Preferably it ~arie~ from 0.5 ~m to 3 mm. Its length preferably varies from 1-10 meters.
The device according to the present invention overcomes substantially the drawbacks of the k~own devices. It enables a steady, slow uniform rate of ~low and can be produced in _ 6 - ~76~Z~
a simple manu~acturing process as one integral unit, in one manufacturing operation. ~loreover, it is pliablel can be bent and thus be packed, stored and transported compsctly. Finally in vie~ o~ the fact that the walls of the hoses may be quite thin, e.g. a~out 0.5-1.0 mm, the device is quite cheap and the one-time use is economical.
Thus, at the end of the season it must not b~ collected ~nd stored and may be left in the field to be destroyed by s~mple and cheap conventional methods.
~ he materi~l $rom which the device is made is not a critic~l feature of the present invention. ~ny su~table pliable plsstic or non-plastic material in sheets, foils, sleeves or film~, which csn be fused together e.g. glued, pressure fused, heat-fusion ~elded, supersonic fused, rsdation ~used or the like may be utilised. There are prefe-rsbly utilised certain polyolefines, e.g. polyethylsne, polypropylene a~d polybutylene or mi2tures thereof.
The device according to the present in~ention is preferably manufactured by ~usion of one or two thin sheets, foils, sleeves or films of a suitable plastic or non-plastic material, e.g. by way o~ glueing, pressure fusing, hot-~u~ on ~elding, supersonic fusion, radiation fu~ion or the like, whereby the entire device ~s formed in one operation.
The device according to the present invention can be an integral part of other devices, e.g. a covering ~or glass houses, for young ~prouts, e.t.c~ Such combination, i.e. covering and device ~or trickle irrigation according to the pre6ent invention mag be manufactured as one u~it from one or two sheets of the pla~tic or non-pla6tio material.
1076821 l~
The present invention will now be described with reference to the accompanying drawings without being limited by them. In these drawings:
Fig.l shows a perspective view of a device according to the present invention being under pressure, i.e. through which water flows:
Fig.2a, b and c show longitudinal and cross-sectional views respectively of the device according to Fig.l; ', ;~
Fig 3a and b, 4a and b and ~a and b show longitudinal and cross-sectional views, respectively, of various embodiments of the device according to the present invention;
Figs. 6a and b show longitudinal and cross-sectional views, respectifely, of an embodiment of the device according to the present invention wherein the sprinkler hose subdi-vides into two sprinkler hoses.
- Figs. 7a and b show longltudinal and cross-sectional views, respectively, of an embodiment of the device according to the present invention being provided with two lines of ' sprinkler hoses; and Figs.8and 9 show schematic views of devices according to the present invention being integral parts of plastic cover-ings for green houses or the like. I ;
All the above views illustrate sections of thecomplete devices. The corresponding parts are referenced by the same numerals. For sake of clarity in each line of sprinkler hoses the parts of only one hose are referenced. All seams between adjacent hoses are illustrated by shading lines.
~7~8Z~
The cross section views shown in Figs. 2b, ~b, 4b, 5b, 6b ~nd 7b are shown along line A-~ in the corresponding Figs. and illustrate the devices under water pressure.
The cross-section view shown in Fig.2c is show~ also along line A-A, but in the collapsed position for reeling.
~ he devices illustrated in all Figs~ comprise water carry~ng hose 1, sprinkler hoses 2, inlets 3, from water carrying hose 1 to spr nkler hose 2; and outlets 4 from spri n~l er hose6 2.
The ~ater in sprinkler hoses 2 ~10WB as indicated by the arro~s.
The sprin~ler hose~ 2 o~ the embodiments shown in Fig8. 1-5 have various ~orm~. That in ~igs.4 is straight ~hersa~ those in the other ~igs. are be~t a~ ~ho~n.
~ he sprinkler hoses 2 o~ the em~odiment shô~n in ~ig~6 subdi~de~ into two and ha~ thus outlet~ 4' and 4n.
The e~bodi~snt shown in ~ig~.7 has two lines o~ sprinkler hos~s 21 and 2~ parallcl the axi8 0~ water carrying ho~e 1 having ths same shape as that illustrated in Fig~. 1 a~d 2.
The device illustrated in Fig.8 show~ plastic co~ering 5 proper being made o~ one plastic sheet bei~g in combination ~ith a dripping device as lllustrated in Figs.l and 2, Said drippi~g device (shown under water p~essura~ is arranged out~ide the plastio covering and dripping ~rom the inside thereo~0 The device il:Lustrated in Fig.9 8how9 a pla~tic coveri~g being made ~rom two sheets 6a and 6b in combination with a dr~pping device a~ illustrated in Fig 1 and 2. Said dripplng device (sho~n u~der water pressure) i~ arranged and drippi~g ~rom thè same sld~ o~ the plastic coveringO ~
Claims (9)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for trickle irrigation constituting one integral unit made from the same material and consisting in a water carrying hose, said hose being provided at pre-determined distances with openings, which openings are on a line parallel to the axis of the water-carrying hose, from which openings extend individual small sprinkler hoses provided with dripping outlets wherein all adjacent conduit segments of said hoses have common fused seams.
2. A device according to Claim 1, wherein the sprinkler hoses are bent in a helical, labyrinth or the like form.
3. A device according to Claim 1, where the sprinkler hose subdivides into two sprinkler hoses.
4. A device according to Claim 3, wherein each of the subdivided hoses agian subdivides into two sprinkler hoses.
5. A device according to any of Claims 1, 2 or 3, wherein there are more than one line of sprinkler hoses.
6. A device according to Claim l wherein the material is a plastic material.
7. A device according to Claim 6 wherein the material is a polyolefine.
8. A device according to Claim 7, wherein the polyolefine is selected among the group comprising polyethylene, poly-propylene and polybutylene or mixtures thereof.
9. A device according to any of Claims 1, 2 or 3 wherein the walls of the hoses have a thickness of 0.5-1.0 mm.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL49814A IL49814A (en) | 1976-06-16 | 1976-06-16 | Hose for trickle irrigation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1076821A true CA1076821A (en) | 1980-05-06 |
Family
ID=11048924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA280,562A Expired CA1076821A (en) | 1976-06-16 | 1977-06-15 | Device for trickle irrigation |
Country Status (10)
| Country | Link |
|---|---|
| JP (1) | JPS6029306B2 (en) |
| AU (1) | AU517279B2 (en) |
| CA (1) | CA1076821A (en) |
| DE (1) | DE2726358A1 (en) |
| FR (1) | FR2354703A1 (en) |
| GB (1) | GB1585283A (en) |
| GR (1) | GR61606B (en) |
| IL (1) | IL49814A (en) |
| IT (1) | IT1083828B (en) |
| ZA (1) | ZA773529B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2446591A2 (en) * | 1977-05-03 | 1980-08-14 | Commissariat Energie Atomique | Micro-climatic soil treatment process - has water from irrigation pipes running down surfaces of cloches |
| JPS54134784A (en) * | 1978-04-12 | 1979-10-19 | Toyo Soda Mfg Co Ltd | Water-dripping pipe and its manufacturing |
| DE2933304A1 (en) * | 1979-08-17 | 1981-04-02 | Hegler, Wilhelm, 8730 Bad Kissingen | IRRIGATION HOSE AND METHOD AND DEVICE FOR PRODUCING IT |
| GB8316384D0 (en) * | 1983-06-16 | 1983-07-20 | Sanders B | Hose |
| AU579113B2 (en) * | 1983-09-20 | 1988-11-17 | Townsend Controls Pty. Ltd. | Irrigation hose |
| EP0196763B1 (en) * | 1985-03-01 | 1991-01-02 | James C. Roberts | Drip irrigator tape |
| DE3708177C1 (en) * | 1987-03-13 | 1988-04-21 | Jan Dipl-Ing Tjaden | Irrigation hose |
| ZA873956B (en) * | 1987-06-03 | 1988-01-27 | Gilead Gideon | Irrigation device |
| EP0353260A4 (en) * | 1987-10-09 | 1991-11-13 | Townsend Controls Pty. Ltd. | Irrigation tape and method of producing same |
| US5732887A (en) * | 1988-02-16 | 1998-03-31 | Roberts; James C. | Drip irrigation tape and method of manufacture |
| GR900100119A (en) * | 1990-02-16 | 1992-06-30 | Emmanouil Dermitzakis | Drippping pipe with external fixed dripper of continuous form |
| US5246171A (en) * | 1991-06-06 | 1993-09-21 | Roberts James C | Drip irrigation tape including a series of alternately offset elongated chambers |
| JPH0543404U (en) * | 1991-11-07 | 1993-06-11 | 株式会社小糸製作所 | Vehicle lighting |
| US8511596B2 (en) | 2010-10-14 | 2013-08-20 | Deere & Company | Drip tape management |
| CN102513230B (en) * | 2011-12-06 | 2014-01-22 | 中国科学院遗传与发育生物学研究所 | Edge gap water seepage drip irrigation pipe/ belt |
| CN102513229A (en) * | 2011-12-06 | 2012-06-27 | 中国科学院遗传与发育生物学研究所 | Edge seam sandwich layer water seepage drip irrigation pipe/belt |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3467142A (en) * | 1967-08-08 | 1969-09-16 | Du Pont | Flow device and method of manufacture thereof |
| US3774850A (en) * | 1972-07-10 | 1973-11-27 | D Zeman | Water distributing tube |
-
1976
- 1976-06-16 IL IL49814A patent/IL49814A/en unknown
-
1977
- 1977-06-10 FR FR7717819A patent/FR2354703A1/en active Granted
- 1977-06-10 DE DE2726358A patent/DE2726358A1/en not_active Withdrawn
- 1977-06-10 AU AU26030/77A patent/AU517279B2/en not_active Expired
- 1977-06-13 ZA ZA00773529A patent/ZA773529B/en unknown
- 1977-06-13 GR GR53689A patent/GR61606B/en unknown
- 1977-06-15 JP JP52070058A patent/JPS6029306B2/en not_active Expired
- 1977-06-15 CA CA280,562A patent/CA1076821A/en not_active Expired
- 1977-06-15 GB GB24994/77A patent/GB1585283A/en not_active Expired
- 1977-06-15 IT IT24701/77A patent/IT1083828B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| GR61606B (en) | 1978-12-02 |
| IL49814A (en) | 1981-10-30 |
| AU2603077A (en) | 1978-12-14 |
| FR2354703A1 (en) | 1978-01-13 |
| IT1083828B (en) | 1985-05-25 |
| JPS5325914A (en) | 1978-03-10 |
| GB1585283A (en) | 1981-02-25 |
| ZA773529B (en) | 1978-05-30 |
| FR2354703B1 (en) | 1984-03-30 |
| JPS6029306B2 (en) | 1985-07-10 |
| IL49814A0 (en) | 1976-08-31 |
| DE2726358A1 (en) | 1977-12-22 |
| AU517279B2 (en) | 1981-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1076821A (en) | Device for trickle irrigation | |
| US4061272A (en) | Irrigation device | |
| US4807668A (en) | Drip irrigation tape | |
| US4235380A (en) | Multiple chamber drip irrigation hose | |
| US4196853A (en) | Multiple chamber drip irrigation hose | |
| US3698195A (en) | Water distributing hose | |
| US2798768A (en) | Soil moistening apparatus | |
| US4948295A (en) | Pipe for watering plants | |
| USRE28095E (en) | Water distbibuting hose | |
| WO2002015670A3 (en) | Drip irrigation hose and method of making same | |
| AR220655A1 (en) | SELF-REGULATING NOZZLE FOR A LIQUID FEEDING PIPE FOR DRIP IRRIGATION | |
| EP0820693A1 (en) | Device for dispensing a liquid | |
| IL48810A (en) | Hose conduits for drip or trickle emission | |
| JPH04267824A (en) | Tube and device for drop irqigation | |
| EP0538242B1 (en) | Drip irrigation system employing adjacently arranged flow-restricting passages | |
| US20080017729A1 (en) | High volume dripping hoses | |
| US3799442A (en) | Fibrous self cleaning irrigation device | |
| US4332107A (en) | Wiper bar system | |
| EP0196763B1 (en) | Drip irrigator tape | |
| US4958772A (en) | Sprinkler line for localized irrigation | |
| KR101883098B1 (en) | Drip hose for growing plant with scheduley supply of water | |
| JPH0880129A (en) | Tube for spray | |
| JPS605810Y2 (en) | irrigation hose | |
| KR101685250B1 (en) | drip hose for growing plant | |
| JPS63146728A (en) | Embedded type irrigation pipe |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |