[go: up one dir, main page]

WO1982003799A1 - Pulverisation - Google Patents

Pulverisation Download PDF

Info

Publication number
WO1982003799A1
WO1982003799A1 PCT/AU1982/000054 AU8200054W WO8203799A1 WO 1982003799 A1 WO1982003799 A1 WO 1982003799A1 AU 8200054 W AU8200054 W AU 8200054W WO 8203799 A1 WO8203799 A1 WO 8203799A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
spray head
shield
produce
container
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.)
Ceased
Application number
PCT/AU1982/000054
Other languages
English (en)
Inventor
Mischa David Lew
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AU82768/82A priority Critical patent/AU8276882A/en
Publication of WO1982003799A1 publication Critical patent/WO1982003799A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B05B1/28—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with integral means for shielding the discharged liquid or other fluent material, e.g. to limit area of spray; with integral means for catching drips or collecting surplus liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/16—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling the spray area
    • B05B12/32—Shielding elements, i.e. elements preventing overspray from reaching areas other than the object to be sprayed
    • B05B12/36—Side shields, i.e. shields extending in a direction substantially parallel to the spray jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/0805—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material
    • B05B9/0811—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container
    • B05B9/0816—Apparatus to be carried on or by a person, e.g. of knapsack type comprising a pressurised or compressible container for liquid or other fluent material comprising air supplying means actuated by the operator to pressurise or compress the container the air supplying means being a manually actuated air pump

Definitions

  • This invention relates to spraying and relates particularly but not exclusively to spraying of weeds in nursery applications in order to kill weeds surrounding seedlings, potted plants, or like living horticultural produce.
  • Weeds are at the present time removed from seed ⁇ lings and/or potted plants or shrubs by manually pulling them from the containers or cutting them from the containers with sharp knives.
  • the present invention has been devised to provide in one aspect a means and in -mother aspect a method which provide much quicker weed control, more effectively and with no soil or root disturbance and with no back bending and/or
  • an improved spraying head for spraying weedicides around seedlings, plants, shrubs or like horticultural produce, hereinafter called produce comprising, a spray head nozzle, and a shield means surrounding said nozzle operative to, in use, prevent spray emitted from said nozzle from contacting green produce at the side of said nozzle except for produce such as weeds which may be directly in front of said nozzle in the spraying direction.
  • a method of eradicating weeds from produce comprising filling said spray apparatus with weedicide, pressurising said container in order to allow said weedicide to be discharged under pressure from said nozzle on operation of said manually operable stop valve, placing said nozzle and said shield adjacent said produce and over any weeds, operating said manually releasable stop valve means to allow weedicide to be emitted from said nozzle, closing said manually controllable stop valve means and subsequently removing said nozzle and shield from said produce.
  • Figure 1 is a view of the preferred spray according to the invention
  • Figure 2 is a detail part cross-sectional view of the spray nozzle and the shield of the spray.
  • Figure 3 is a close-up view showing application of the weedicide to a plant in a pot, and
  • Figure 4 is a perspective view showing how the spray is used for applying weedicide in a nursery applic ⁇ ation where many hundreds of plants are potted and arranged in rows.
  • Figure 5 is a perspective view of a particularly preferred construction of a spraying nozzle and extension arm or conduit.
  • Figure 6 is a perspective view of a swingable spraying nozzle. Description of Preferred Embodiments
  • FIG. 1 there is shown a container 1 for containing weedicide.
  • the container 1 has a screw top 3 with a manually operable pump means 5 therein.
  • Such container 1 and pump means 5 are known in the horticultural fields for use when spraying pesticides and the like sprays over plants.
  • a typical container 1 and pump means 5 is that made by Hills Industries Limited, 944-956 South Road, Edwardstown, South Australia, Australia ⁇ Only the handle has been shown of the pump means 5.
  • Several depressions of the handle 5 cause the pump to pressurise the contents of the container 1 and to cause it to be expelled under pressure through a conduit 7 which connects with a manually operable stop valve means and spray nozzle shown generally by numeral 9.
  • the manually operable stop valve means and nozzle is a commercial item manufactured by Spraying Systems Co, of North Avenue, Sch ale Road, Wheaton Illinois 60187 United States of America which comprises a handle 11 with a trigger 13 and a stop valve operating rod 15 which passes through a further conduit 17 and connects with a spray nozzle 19 at the remote end of the further conduit 17. This operates a stop valve at a nozzle 19 thereat.
  • the trigger 13 operated to open the valve at the nozzle 19
  • the contents of the container 1 can be'sprayed from the nozzle 19.
  • the stop valve means being at the nozzle 19, closes the nozzle 19 and also inhibits dripping of liquids therefrom.
  • the nozzle 19 has a sheild 21 fitted thereon.
  • the shield 21 is made of a suitable material such as a plastics material, as of polyethylene tubing and has a stepped portion 23 which frictionally engages over the fastening means 25 of the nozzle 19.
  • the shield 21 is held at the remote end of the device shown generally by numeral 9 simply by a frictional fit.
  • the diameter of the open end of the shield 21 is such that it corresponds with the diameter of the spray discharge (as determined by the spray angle « see Figure 2) .
  • the position of the shield 21 is adjusted by sliding the shield 21 over the fastening means 25 of the nozzle 19 so that the spray can be emitted from the discharge end of the shield 21 without impinging on the inside walls thereof.
  • the shield 21 is frictionally held to the fastening means 25 such that it can slide along the length thereof is to enable adjustment to be made to the position of the free end, relative to the spray of weedicide emitted from the nozzle 19 to, in turn, enable the spray discharge diameter to correspond approximately to the diameter of the free end. This enables adjustment to take into account variations of pressure which may be experienced by different degrees of pressurisation of the chamber 1 consequent on either excessive pumping of the pumping means 5 and/or subsequent depletion of the weedicide therein.
  • Figure 3 shows the device 9 in use around a plant 25 in a pot 27.
  • the shield 21 is used for pushing leaves of a plant 25 aside so that the nozzle 19 can be appropriately positioned above any weeds in the pot 27.
  • the free end of the shield 21 is engaged on the top of the soil in the pot 27 so as to minimize any radial dispersion of weedicide from the free end of the sheild 21.
  • the shield 21 also serves to prevent the leaves of the plant from contacting with the nozzle 19 and contacting any weedicide which may be thereon.
  • Figure 4 shows diagrammatically how an operator uses the device 9 to apply weedicide to plants in pots many rows distant from the operator. It can be seen in this situation that the further conduit 17 of the apparatus 9, is rather lengthy, thus permitting the operator to have the necessary reach to the plants in the furthest row of pots. It should also be appreciated that the shield 21 acts to prevent the foliage of any of the plants from contacting with.the nozzle and from accidently having weedicide applied thereto.
  • weedicides discussed herein are green growth killers.
  • the solutions of weedicide herein are particularly advantageous as the weedicide is completely harmless to soil and/or plants provided the green leaves and/or green stems or trunks of the plants are not contacted by the spray.
  • a preferable weedicide is made up from a solution of Reglone (registered trade mark) and/or Gramoxone (registered trade mark) and/or Tryquat (registered trade mark) and Agral 60 (.registered trade mark) .
  • the Reglone (registered trade mark) , Gramoxone (registered trade mark) and Tryquat (registered trade mark) are the active weed ⁇ icides whilst Agral 60 (registered trade mark) is a wetting agent for use with weedicides.
  • Reglone (registered trade mark) is preferable for use in controlling broad leaf weeds whilst Tryquat (registered trade mark) is particularly useful for controlling annual grass and/or broad leaf weeds, whilst Gramoxone (registered trade mark) is particularly useful for controlling grass weeds.
  • Reglone, Gramoxone, Tryquat and Agral 60 are registered trade marks of I.C.I. Australia Ltd, of 1 Nicholson Street, Melbourne, Victoria, ustralia. ⁇ are all known weedicides.. In the application herein, it is important that the weeds be killed almost instantly - within several hours - so that optimum yield times can be achieved for weeding an area in a nursery.
  • a particularly preferred concentration of weedicide for placing in the container 1 comprises an approximate three litre total mixture made up of three litres of water, five millilitres of Reglone or Tryquat or Gramoxone (registered trade marks) and 2 mills of Agral 60 (registered trade mark) .
  • the weedicide constituents can be varied somewhat from the approximate mixing proportions given. Such is still to be considered within the scope of the invention.
  • the spray nozzle 19 and the shield 21 may be mounted for swinging movement on the end of the further conduit 17 and be controllable by a control lever at the handle 11. Thus, when reaching across several rows of pots, as shown in Figure 4, the nozzle 19 and the shield 21 can be tilted to a suitable angle to effect discharge of the weedicide directly over weeds in each of the pots.
  • the further conduit 17 can be made of any suitable length. Typical lengths used so far have been in the range of 20 centimeters to 90 centimeters. A typical diameter of the discharge end of the shield 21 is 29 millimeters. A typical length of the shield 21 is approximately 22 millimeters. Desirably, the free end of the shield 21 is 20 millimetres from the discharge end of the nozzle 19.
  • FIG. 5 A particularly preferred construction of spraying nozzle 19 and extension conduit 17 is shown in Figure 5.
  • the conduit 17 is approximately 17 cm in length and has a flaired coupling 31 at one end for enabling screw clamping by nut 33 to the device 9.
  • Inter ⁇ mediate the ends of the conduit 17 is disc like member 35.
  • the member 35 is held to the conduit 17 by the central boss portion 37 being silver soldered thereto.
  • the outer cir ⁇ cumferential surface of the disc like member 35 is screw threaded and the shield 21 is internally screw threaded at its rear end. This enables the shield 21 to be held over the nozzle 19 and the position of the open end of the shield to be adjusted relative to the nozzle 19.
  • the shield 21 - clockwise or anticlockwise - the threaded engagement with the disc member 35 will cause it to extend or retract from the nozzle.
  • precise positioning of the open end of the shield 21 relative to the nozzle 17 can be made.
  • Figure 6 shows one preferred spray nozzle 19 which can be swung to desired angles so that the shield and nozzle can be appropriately positioned over weeds.
  • This construction is particularly advantagous when spraying across several rows of plants.
  • the nozzle 19 has a rear part 41 which can be screw fastened to the device 9 or to an extension conduit 17.
  • the rear part 41 terminates in a swivel coupling 43 which in turn connects with the nozzle 19.
  • the rear part of the nozzle 19 has a disc like member 47 thereon.
  • This disc like member 47 is circumferentially screw threaded and screw threadably receives a shield 21 in a manner similar to that shown for the embodiment in Figure 5.
  • the shield 21 can be adjusted relative to the nozzle 19 in the same manner as described for the construction of Figure 5.
  • the angle of the nozzle 19 relative to the device 9 or conduit 17 can be suitably chosen by swinging the shield 21 and nozzle 19 in the direction shown by arrow A.
  • a screw means 49 is provided at the swivel joint 43 to tighten the swivel joint 43 to provide a desired degree of resistance to swinging and a leak free joint.
  • the construction of the swivel joint 43 per-se is known in plumbing fitting arts.
  • the shield 21 being a solid shield having a continuous shield surface it may be made of open construction in the form of a wire frame which simply holds the nozzle 19 spaced a predetermined distance from any foliage or the like which may touch the shield.

Landscapes

  • Catching Or Destruction (AREA)

Abstract

Tete de pulverisation permettant l'extirpation des mauvaises herbes autour d'une plante cultivee, par une pulverisation de desherbant. La tete de pulverisation possede un manche (11) pourvu d'une detente (13). La detente (13) actionne a son tour une soupape de fermeture (non illustree) dans une buse de decharge (19). Un ecran (21) entoure la bus de decharge (19) et, lors de l'utilisation, protege le feuillage ou la plante a cote de la buse (19) du contact avec le desherbant. L'ecran (21) est place au-dessus des mauvaises herbes a extirper et il est possible d'effectuer une application delimitee de maniere efficace. Un procede d'extirpation des mauvaises herbes grace a l'utilisation de la tete de pulverisation est aussi decrit.
PCT/AU1982/000054 1981-04-28 1982-04-08 Pulverisation Ceased WO1982003799A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU82768/82A AU8276882A (en) 1981-04-28 1982-04-08 Spraying

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU861381 1981-04-28
AU8613/81 1981-04-28
AU95181 1981-09-28
AU951/81810928 1981-09-28

Publications (1)

Publication Number Publication Date
WO1982003799A1 true WO1982003799A1 (fr) 1982-11-11

Family

ID=25608921

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1982/000054 Ceased WO1982003799A1 (fr) 1981-04-28 1982-04-08 Pulverisation

Country Status (1)

Country Link
WO (1) WO1982003799A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221622A1 (fr) * 1985-10-31 1987-05-13 Nippon Seiki Co. Ltd. Dispositif protecteur pour un atomiseur
US4865257A (en) * 1988-07-20 1989-09-12 Bailey Amy L Spray guard adapted for use with a wand for spraying a liquid onto vegetation
US4895306A (en) * 1988-02-17 1990-01-23 Whitehurst Jr Clarence D Liquid trimmer shield accessory for herbicide spray heads
US4976465A (en) * 1987-07-20 1990-12-11 Nomix Manufacturing Company Limited Equipment for delivering fluid
GB2207032B (en) * 1987-07-20 1991-05-29 Nomix Mfg Co Ltd A container for liquids.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2119043A (en) * 1937-02-10 1938-05-31 Lawrence W Cornelison Guard for spray guns
US2237447A (en) * 1939-12-04 1941-04-08 Newville F Rca Weed gun
GB820944A (en) * 1956-01-16 1959-09-30 Wald Ind Inc Improvements in or relating to a paint spraying apparatus
AU5793673A (en) * 1972-07-12 1975-01-16 Grolitsch Erhard Device for atomising liquid or pastelike substances
GB1513711A (en) * 1976-02-18 1978-06-07 Lindner G Spray device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2119043A (en) * 1937-02-10 1938-05-31 Lawrence W Cornelison Guard for spray guns
US2237447A (en) * 1939-12-04 1941-04-08 Newville F Rca Weed gun
GB820944A (en) * 1956-01-16 1959-09-30 Wald Ind Inc Improvements in or relating to a paint spraying apparatus
AU5793673A (en) * 1972-07-12 1975-01-16 Grolitsch Erhard Device for atomising liquid or pastelike substances
GB1513711A (en) * 1976-02-18 1978-06-07 Lindner G Spray device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221622A1 (fr) * 1985-10-31 1987-05-13 Nippon Seiki Co. Ltd. Dispositif protecteur pour un atomiseur
US4700890A (en) * 1985-10-31 1987-10-20 Nippon Seiki Co., Ltd. Protective device for spraying apparatus
US4976465A (en) * 1987-07-20 1990-12-11 Nomix Manufacturing Company Limited Equipment for delivering fluid
GB2207032B (en) * 1987-07-20 1991-05-29 Nomix Mfg Co Ltd A container for liquids.
US5135171A (en) * 1987-07-20 1992-08-04 Nomix-Chipman Limited Container for a liquid for attachment to equipment for delivering the liquid
US4895306A (en) * 1988-02-17 1990-01-23 Whitehurst Jr Clarence D Liquid trimmer shield accessory for herbicide spray heads
US4865257A (en) * 1988-07-20 1989-09-12 Bailey Amy L Spray guard adapted for use with a wand for spraying a liquid onto vegetation

Similar Documents

Publication Publication Date Title
US5590611A (en) Liquid fertilizer injection system
US4206569A (en) Weed sprayer
US9999894B2 (en) Tree and shrub sprinkler apparatus
US4199896A (en) Controlled area boom sprayer
US4409755A (en) Hand held liquid herbicide applicator
US2581678A (en) Wheeled spraying device
NO153533B (no) Fremgangsmaate ved polymerisering av olefiner, samt katalysator til anvendelse ved fremgangsmaaten.
US3232006A (en) Means for applying chemicals over lawns or the like
US4524912A (en) Agricultural portable chemical applicator with protective shield
US4111364A (en) Herbicide applying machine
US20060131444A1 (en) Spraying apparatus
US5340030A (en) Selective dispensing of substances in granular or powder form
Matthews The application of chemicals for plant disease control.
WO1982003799A1 (fr) Pulverisation
US3267610A (en) Applicator
US6065244A (en) Plant spray shield method
NO128886B (fr)
AU8276882A (en) Spraying
EP1785032A2 (fr) appareil de pulverisation
US3255929A (en) Herbicide applicator
US20190059350A1 (en) Insect detachment system for upstanding vegetation
Sahni et al. Fixed spray delivery systems for efficient crop input applications in deciduous crops
US6045067A (en) Chemical edger
US4254717A (en) Gardening implement for irrigation
JP3495339B2 (ja) 茶株内噴霧器および茶株病害虫駆除方法

Legal Events

Date Code Title Description
AK Designated states

Designated state(s): AU DE DK GB JP NL US