WO2007021203A1 - Pulvérisateur - Google Patents

Pulvérisateur Download PDF

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Publication number
WO2007021203A1
WO2007021203A1 PCT/NZ2006/000206 NZ2006000206W WO2007021203A1 WO 2007021203 A1 WO2007021203 A1 WO 2007021203A1 NZ 2006000206 W NZ2006000206 W NZ 2006000206W WO 2007021203 A1 WO2007021203 A1 WO 2007021203A1
Authority
WO
WIPO (PCT)
Prior art keywords
reservoir
sprayer
pump
additive
die
Prior art date
Application number
PCT/NZ2006/000206
Other languages
English (en)
Inventor
Rodney Michael Ng
Original Assignee
Rodney Michael Ng
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 Rodney Michael Ng filed Critical Rodney Michael Ng
Publication of WO2007021203A1 publication Critical patent/WO2007021203A1/fr

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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
    • 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
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0877—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being of pressure-accumulation type or being connected to a pressure accumulation chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2472—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device comprising several containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2475—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device comprising a container carried on the back of the user
    • 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
    • B05B9/0888—Carrying means for knapsack sprayers

Definitions

  • the present invention relates to improvements to a sprayer, in particular although not solely to a sprayer of a kind commonly referred to as a knapsack sprayer.
  • Knapsack sprayers are extensively used in the horticultural industry. Knapsack sprayers may also be used in domestic gardening. They provide a means for delivering a chemical to plants for particular purposes. Such purposes may include weed control or pest control.
  • Knapsack sprayers will include a reservoir which is engaged to a harness to allow for the reservoir to be carried by a person in a similar manner to a backpack.
  • the reservoir of knapsack sprayers will be capable of containing a liquid such as water with a chemical additive.
  • the reservoir is usually charged through an opening and can then be sealed so as to create a pressure vessel.
  • the reservoir pressure vessel can be pressurised by a pump which will result in the ability for the liquid to be delivered through a spray nozzle (usually at the end of a spray wand), in a pressurised manner. This will allow for a suitable delivery of the liquid to be achieved to the plants.
  • a variation to a knapsack sprayer where the entire reservoir is pressurisable is a knapsack sprayer which includes a main reservoir which can deliver liquid to a separate pressurisable pressure cylinder.
  • the pressurisable cylinder is able to be pressurised and is able to receive liquid from the reservoir for such liquid to be pressurised.
  • the pressure cylinder can receive the liquid via a non-return valve so that liquid can be pressurised prior to it being dispensed via the wand and nozzle.
  • Pressurising of the cylinder can be achieved via a piston or diaphragm pump which is operateable by a handle extending from the knapsack sprayer. The handle allows for a user to grasp the handle to pressurise the cylinder.
  • the chemical additives are normally mixed through the same opening that the water is passed through to be introduced into the main reservoir.
  • TMs can create problems.
  • the first problem is that the chemical needs to be added through the opening. This can often result in spillage occurring about the opening.
  • the spilt chemicals which are then in its most concentrated form, can remain on the exterior of the knapsack and come into contact with a person. Many chemicals such as herbicides, pesticides and fertilisers are poisonous. This is hence an undesirable situation.
  • the interior of the reservoir and pressure cylinder come into contact with the additive chemicals.
  • Cross contamination of chemicals can occur where the knapsack sprayer is being utilised for the application of different chemicals to die plants. After its use with one chemical, die entire knapsack sprayer needs to be flushed and cleaned before a new or different chemical is added for subsequent use, in order to prevent cross contamination.
  • the lid and the opening spout to the reservoir may have been in contact with die liquid inside die container. Droplets of the chemical containing water may be spilt resulting in contact with a person. It has also been known that leakage, during use of the device, can occur at the lid. In a knapsack sprayer this can pose a problem as the knapsack sprayer is very proximate the body of the user. Accordingly it is an object of die present invention to provide a sprayer which goes some way to addressing the abovementioned disadvantages and/or to at least provide the public with a useful choice.
  • the present invention consists in a sprayer of a kind to deliver a liquid to be sprayed through a user held delivery wand for application of the liquid spray to a surface
  • said sprayer comprising: a first reservoir, a second reservoir to contain an additive a first pump to transfer a controlled amount of said additive from said second reservoir to said first reservoir, a second pump to transfer a controlled amount of said carrier liquid to said first reservoir, said first pump and said second pump simultaneously controllable to ensure that a proportional amount of said carrier liquid to said additive, are transferred to said first reservoir for mixing together in said first reservoir, wherein said first reservoir includes an outlet in fluid connection with said delivery wand to allow the dispensing of additive containing carrier liquid.
  • said first reservoir is a pressure vessel.
  • said first reservoir includes a first inlet in fluid communication with said second pump to receive said carrier liquid therethrough.
  • said second pump includes a piston pump.
  • said second pump includes a diaphragm pump.
  • said first pump includes a piston pump.
  • said first pump includes a one-way valve to prevent flow of fluid from said first reservoir to said second reservoir.
  • said first pump includes a three way connector and wherein intermediate of said 3 way connector and said second reservoir there is placed a one way valve to prevent the flow of additive to said second reservoir.
  • said additive is a liquid.
  • said three way connector includes an inlet to a conduit extending and in fluid communication with said second reservok, an inlet to a conduit extending and in fluid communication with said fkst pump and an inlet to a conduit extending and in fluid communication with said fkst reservok.
  • a common means to control for simultaneous actuation of the fkst and second pump includes an oscillateable crank shaft with which said fkst and second pumps are in mechanical engagement.
  • crank shaft is oscillateable by a crank handle which is user actuable to effect the oscillating motion of said crank shaft.
  • crank shaft includes crank lever engaging a connection rod of said fkst pump.
  • crank shaft includes a crank lever engaging a connection rod of said second pump.
  • crank lever for said second pump allows the connection rod of said second pump to be positioned or affixed thereto at different radial positions from the crank axis of said crank shaft.
  • the effective crank lever length can be varied by movement of said crank lever relative to the crank axis.
  • crank lever is threadingly engaged to a bush, itself threadingly engaged to the cranks shaft, to allow the variation of the effective crank lever to occur.
  • crank lever carries visible gradient marking.
  • said bush and crank lever threaded engagement is one of a left hand and right hand thread and the bush and the crankshaft threaded engagement is the other of a left and right hand thread.
  • said first and second reservoks are dependent from a main reservok that contains said carrier liquid.
  • said main reservok is in fluid communication with said first pump to allow the displacement of carrier fluid from said main reservoir to said fkst reservok.
  • said main reservok is not a pressure vessel.
  • said first reservoir is contained within said main reservoir.
  • said second reservoir is a disposable reservoir.
  • said second reservoir is of a vanable volume.
  • said second reservoir is sealed, save for said outlet to allow dispensing of its contents to said first reservoir.
  • said second reservoir includes a plunger that moves relative to a housing of said second reservoir when the volume of said second reservoir is varied.
  • said second reservoir is an assembly of a housing with a cylindrical bore and a plunger located in said bore to be displaceable within said bore to vary the volume of the captured additive.
  • said plunger has a fastening zone with winch an actuator can engage to allow control over the position of the plunger to be had by a user
  • said second reservoir is a cartiidge that can be engaged to an inlet to a conduit extending and in fluid communication with said second leservoir from said three way valve.
  • said cartridge includes an outlet opening to sealingly engage to said conduit.
  • the spiayer is a portable sprayer
  • the sprayer is one carried on a back of a user.
  • an injection unit for a sprayer of a kind winch includes a user held delivery wand for application of a liquid to a surface delivered theieto from a pressurisable first reservoir winch is to contain a carrier liquid and winch includes a means to transfer a controlled amount of said earner liquid to said first reservoir, said injection unit including a a second reservoir to contain an additive, a first means to transfer a controlled amount of said additive from said second reservoir to said first reservoir, said first means to transfer and said means to transfer, controlled by a common means to control to ensure that a pioportional amount of said carrier liquid to said additive, aie transferred to said first leservoir, wherein said first reservoir includes an outlet in fluid connection with said delivery wand to allow the dispensing of additive containing carrier liquid.
  • die present invention consists in an injection unit as herein before described retrofitted to a sprayer of a kind herein described.
  • This invention may also be said broadly to consist in the parts, elements and features referred to or indicated in die specification of the application, individually or collectively, and any or all combinations of any two or more of said parts, elements or features, and where specific integers are mentioned herein which have known equivalents in the art to which this invention relates, such known equivalents are deemed to be incorporated herein as if individually set forth.
  • Figure 1 is a perspective view of a knapsack sprayer of the present invention
  • Figure 2 is a perspective view of an alternative form of a knapsack sprayer of the present invention
  • Figure 3 is a further perspective view of a form of the knapsack sprayer of the present invention.
  • Figure 4 is a schematic side view of the injection unit for or of the knapsack sprayer of the present invention
  • Figure 5 is a rear perspective and partially cutaway schematic view of a knapsack sprayer of die present invention
  • Figure 6 is a side view of die lever arm of the injector of the present invention.
  • Figure 7 is a view of the ventuiy of the knapsack sprayer of the present invention.
  • Figure 8 is a perspective view of an alternative embodiment of the present invention indicating the location of an additive dispenser
  • Figure 9 is a rear elevation view of a cross section portion through the axis of tlie additive mixture container showing die topology between die internal and external components of the alternative embodiment of the present invention
  • Figure 10 is a perspective view of an alternative embodiment of the present invention showing die handle portion of the pump being removeable
  • Figure 11 shows a perspective view of die handle portion when removed and used to engage the stopper of die additive dispenser
  • Figure 12 shows an elevation view of the lever assembly of die present invention.
  • the knapsack sprayer consists of a main reservoir 1 which may also provide die main body of die knapsack sprayer of die present invention from which various components depend.
  • die main reservoir 1 may have directiy or indirectiy depended dierefrom over the shoulder straps 2 which allow for the knapsack sprayer of die present invention to be carried on the back of a person.
  • the knapsack sprayer may also include a base 3 which allows for die knapsack sprayer to stand upright on die ground.
  • the main reservoir 1 can include an outiet opening 4 which may be closable by a cap 5.
  • the oudet opening 4 allows for the main reservoir 1 to be filled with liquid and/or chemicals.
  • the oudet opening 4 is preferably of a size to allow for, for example a hose to be inserted to allow for water to be transferred into die main reservoir 1.
  • the opening 4 may also be of a size large enough to allow for a powder or liquid chemical to be added.
  • the cap 5 can close the oudet opening 4 to seal die contents of die main reservoir inside die main reservoir.
  • die knapsack sprayer includes an additive reservoir 6.
  • the additive reservoir 6 is die reservoir which can contain the chemical additives such as die herbicides, pesticides or fertiliser or die like.
  • the knapsack sprayer of the present invention separates the additives contained within die additive reservoir 6 from the liquid (usually water) contained in the main reservoir 1. Indeed the liquid in the main reservoir 1 does not in the most preferred form, receive any of the chemical additives from the additive reservoir 6.
  • the knapsack sprayer also includes a pressure cylinder 7.
  • the pressure cylinder 7 is that part of the knapsack sprayer which can be pressurised for the purposes of delivering the fluids via a hose 8 and wand 9 out through a spray nozzle 10.
  • the pressure cylinder 7 in the example shown in Figure 5, is contained at least in part within the main reservoir 1. However the pressure cylinder may be located external of the main reservoir 1. Pressurisation of the pressure cylinder 7 occurs by the use of a piston or diaphragm pump 11.
  • the piston or diaphragm pump 11 can be actuated to pump air into the pressure cylinder 7.
  • the pump can pump liquid from the main reservoir 1, into the pressure cylinder 7.
  • a liquid displacement from the main reservoir into the pressure cylinder 7 can establish a pressurised cylinder 7.
  • the diaphragm or piston pump 11 is actuated upon the movement of a handle 13.
  • the handle 13 is a crank handle operating about a crank axis XX to rotate the crankshaft 14 about the crank axis XX.
  • a lever 16 extending from the crankshaft 14 can operate the diaphragm or piston pump 11.
  • the lever 16 rotates about the crank axis XX to establish an oscillating motion of the diaphragm or piston pump in order to affect a pumping action thereof for die purposes of pressurising the pressure cylinder 7.
  • the crank shaft 14 may be supported by supports 19 to allow for it to rotate about the axis XX.
  • a pumping of the piston or diaphragm pump 11 can result in the injection of air and/or liquid into the pressure cylinder 7.
  • a one way valve may be utilised in order to ensure that the pressure cylinder 7 can be pressurised as a result of the pumping action of the diaphragm or piston pump.
  • An outlet 20 of the pressure cylinder 7 may allow for the liquid contained within the pressure cylinder to be discharged via the hose 8 to the spray nozzle 10.
  • the present invention In addition to carrying the lever 16 to operate the diaphragm or piston pump, the present invention also has a second lever 23, carried by the crankshaft 14.
  • the lever 23 likewise rotates about the crank axis XX.
  • the lever 23 can oscillate about the crank axis XX.
  • the lever 23 is utilised to operate an injection pump. Peristaltic or other types of pumps may also be used.
  • the injection pump of the present invention as shown with reference to Figure 4 consists of the lever 23 which acts on a piston cylinder arrangement 29.
  • the piston cylinder arrangement 29 includes the cylinder 30 within which there is provided a piston 32 located at the end of a connection rod 33.
  • the additive reservoir 6 includes a delivery tube 34 extending therefrom.
  • the delivery tube 34 can allow for the liquid within the additive reservoir 6 to be dispensed therefrom.
  • the dispensing is as a result of a suction established on the delivery tube 34 by die action of the piston and cylinder arrangement 29.
  • the piston and cylinder arrangement 29 can utilise a one way valve assembly 13b to ensure an injection to the pressure vessel of the chemicals.
  • the assembly 136 allows for a drawing of the liquid from the additive reservoir 6 via the suction tube 34 to be drawn to the assembly 136.
  • the assembly 136 has extending therefrom a delivery conduit 40 which allows die delivery of the liquid drawn via the deliver tube 34 from the additive reservoir 6, to be delivered to die pressure cylinder 7 via die delivery conduit 40.
  • the assembly 136 is of a kind which may allow for the liquid in the additive reservoir to be sucked therethrough.
  • a ventury 36 may be used as shown in Figure 7 which may rely on a ventury effect and/or gravity for the feeding of liquid from the additive reservoir 6 to the ventury 36.
  • the additive reservoir 6 preferably contains the chemical additive in its manufacturers supplied concentration and form. Accordingly the additive reservoir 6 may contain highly concentrated chemicals. The ventury will result in a dispensing of the concentrated liquid chemicals into the pressure cylinder 7. A known and predetermined amount of liquid chemical additive is delivered dependent on the length of stroke of the piston 32.
  • the length of stroke of the piston is proportional to the length of stroke of the diaphragm/piston pump 11. Accordingly the delivery of liquid chemicals from the injection system into the pressure cylinder 7 is proportional to the volume of liquid that is transferred from the main reservoir 1 to the pressure cylinder 7. For example, for each 10 millilitres of water transferred from the main reservoir 1 to the pressure cylinder 7, 1 millilitre of chemical additives may be injected into the pressure cylinder 7. In a preferred form of the present invention, the proportions of water to chemical injected into the pressure cylinder 7 may be varied.
  • the lever 23, and with reference to for example Figure 6, may allow for an adjustment of the piston stroke to occur as a result of a movable connection rod.
  • the connection rod 33 may be capable of moving along die lever arm 2 and away from the crank axis XX. Such an adjustability can allow for the stroke of a piston to be varied for each degree of movement of the lever 23 about the axis X. This has the affect of adjusting the volume of chemical additive being injected into die pressure cylinder 7. This can be varied independent from the volume of water delivered by the piston/diaphragm pump from die main liquid reservoir 1 into the pressure cylinder 7.
  • the adjustment of die connection rod 33 radially from the axis X along die lever arm 23 may be a graded movement. The gradations may be indicated on a scale 50 of the lever arm 23. This scale may have relevance to any manufacturers specified mixing ratios shown on the packaging of a chemical additive.
  • die delivery stroke may need to be set at a certain gradation whereas for others it may need to be set at another gradation and this may be a gradation specified by the manufacturer on die packaging of die chemical additives.
  • the chemical additives may be provided in a form so as to define the additive reservoir 6.
  • the additive reservoir 6 may be an item purchased from a wholesaler, retailer or direct from die manufacturer in a pre-packaged form capable of being engaged with the other components of the knapsack sprayer of the present invention.
  • the chemical additive reservoir 6 so supplied may be provided in a sealed condition and may be engaged with the other components of the knapsack sprayer of the present invention in a manner so that no contact with the contents of the additive reservoir 6 can occur.
  • a screw threaded arrangement may be provided where a manufacturer supplied chemical additive reservoir 6 is screw engaged with a fitting of the knapsack sprayer to slot into the injection system of the present invention. Upon the complete discharging of the additive reservoir 6, the additive reservoir may be unscrewed and disposed of appropriately. Such screw engagement may utilise a ball valve arrangement to ensure diat the contents of the reservoir 6, when not engaged with the other components of the injection system, are prevented from any spillage.
  • the water turbulence created during die injection of both the water and die chemical additives will ensure that a thorough mixing of the chemical additive witii the water widiin the pressure cylinder occurs prior to such being dispensed via die wand. There is no need to premix the chemical additives within die main reservoir. Having die chemical separated from die main reservok will also reduce die amount or possibility of cross contamination between different chemicals. After spraying is finished, all that the user needs to do is remove the chemical container and spray the remaining water in the water reservoir out. This should be enough to flush any chemical residue within the pressure cylinder.
  • the invention ensures that die amount of contact that the user has witii die chemicals is vastly reduced if not completely eliminated entirely.
  • the additive reservoir 6 may in fact be a syringe or dispensing cartridge that contains a mixture of a desired additive to mix witii the water for spraying. Such a syringe, cartridge or similar means may be available off the shelf from any appropriate sales outlet.
  • Figure 8 shows a knapsack sprayer of the present invention where the additive reservoir ⁇ is a syringe type dispenser. It may be appreciated that the dispenser 6 may also be a bladder or like liquid containment means, diat may or may not be removable. It may be appreciated that the syringe or container 6 is of a variable volume and not requiring a breather hole.
  • the syringe dispenser may be inserted or loaded into an aperture 80 located through the main reservoir 1.
  • the aperture 80 defines entry to a holding means 81 embedded within the main reservoir 1 which receives the dispenser 6 for dispensing into the system hereinbefore described.
  • the additive containing syringe or dispenser 6 is loaded widiin the holder 6 delivery end 82 first. Once located, die delivery end 82 engages the system in such a way (as will be known within the art using appropriate seals and so forth) diat permits die flow of die contained additive mixture (widiin die syringe or dispenser 6) into delivery tube 34.
  • Figure 9 shows a section view of the internal components indicating the relative placement of the syringe containing additive 6 when being loaded into die holding means 81.
  • die additive mixture dispenser 6 Once die additive mixture dispenser 6 is used or emptied, it may be removed from die holding means 81 and discarded for replacement by a new syringe or cartridge 6.
  • Figure 10 shows a further perspective view of die present invention showing the removability of a handle portion 83 used in combination with die crank handle 13 when pumping.
  • the handle 83 may be removed from the sleeve of the crank handle 13.
  • Figure 11 shows die configuration of die handle 83 having a shaft 84, preferably smaller diameter than said handle 83, attached at a proximal end of said shaft.
  • the shaft 84 has at its distal end a thread 85 which compliments a tapped hole 86 within die external surface of a stopper 87 used to seal die contents of said syringe 6.
  • the handle is used to engage die tiiread 85 into die tapped hole 86 such as to be able to conveniently manipulate the stopper 87 either axially inwards or outwards of the syringe 6.
  • a reason for this may be to conveniendy bleed air from widiin die system (or any located within die syringe itself) before use. This may be required when if the knap sack spray has been not been used over an extended period of time.
  • a further embodiment of the present invention includes an alternative means of increasing the lever distance of the lever 23.
  • Such an embodiment may include the use of a turn buclde type system in which the level 23, or a portion of it, is threadingly engaged to the crankshaft 14.
  • the engagement point will be at a distal end of the crankshaft 14 such that effective leverage can be gained for manipulation of the connection rod 33.
  • Figure 12 shows an elevation view of the assembly of the alternative lever arrangement.
  • Lever 23 incorporates on a portion of its circumference is a thread 90 engageable to a complimentary thread of an. aperture within the crankshaft 14. At one end of the thread 90 is attached a fixed nut 92. Intermediate of die connecting rod 33 and crankshaft 14 is a free second nut 91 that is threadable to the threaded portion 90 of said lever 23.
  • die lever 23 is rotated clockwise to extend further through the crackshaft 14, thus increasing the distance between where the connecting rod 33 joins die lever 23 and the crankshaft 14.
  • the nut 91 is threaded toward the crankshaft 14 to lock die assembly at the new setting.
  • distance markings or graduation indicia are shown on the surface of lever 23.

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  • Catching Or Destruction (AREA)

Abstract

La présente invention concerne un pulvérisateur pouvant distribuer un liquide devant être pulvérisé à travers une lance de distribution tenue par un utilisateur pour l’application du liquide pulvérisé sur une surface, ledit pulvérisateur comprenant un premier réservoir, un second réservoir pour contenir un additif, une première pompe pour le transfert d’une quantité contrôlée de l’additif du second réservoir vers le premier réservoir, une seconde pompe pour le transfert d’une quantité contrôlée du liquide porteur vers le premier réservoir, les première et seconde pompes étant simultanément réglables pour assurer qu’une quantité proportionnelle du liquide porteur par rapport à l’additif est transférée au premier réservoir pour s’y mélanger, le premier réservoir comportant un orifice de refoulement en connexion fluide avec la lance de distribution pour permettre la distribution de liquide porteur contenant l’additif.
PCT/NZ2006/000206 2005-08-16 2006-08-15 Pulvérisateur WO2007021203A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
NZ541866 2005-08-16
NZ54186605 2005-08-16
NZ544058 2005-12-08
NZ54405805 2005-12-08

Publications (1)

Publication Number Publication Date
WO2007021203A1 true WO2007021203A1 (fr) 2007-02-22

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Application Number Title Priority Date Filing Date
PCT/NZ2006/000206 WO2007021203A1 (fr) 2005-08-16 2006-08-15 Pulvérisateur

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WO (1) WO2007021203A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2296822A1 (fr) * 2008-06-06 2011-03-23 Takashi Nishimura Dispositif de pulvérisation à manipulation sans risque
CN108575963A (zh) * 2018-04-30 2018-09-28 中山市科多隆自动化设备有限公司 一种喷药设备
US10864538B2 (en) 2019-03-13 2020-12-15 Chapin Manufacturing, Inc. Dual chamber backpack sprayer

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348197A (en) * 1992-08-24 1994-09-20 Omnific International Inc. Aerosol container having a side coupled pump module
US5351887A (en) * 1993-02-16 1994-10-04 Binks Manufacturing Company Pumping and spraying system for heavy materials
EP0761313A2 (fr) * 1995-09-08 1997-03-12 Owens-Illinois Closure Inc., Distributeur pompe simultane
DE19923364A1 (de) * 1999-05-21 1999-12-23 Wolfgang Mueller Pumpensystem mit hydraulischem Rührwerk für handbetätigte Rückenspritzen
US20020175222A1 (en) * 2001-03-26 2002-11-28 Vaage Lauren Jay Transportable texture applicator
WO2004070269A2 (fr) * 2003-02-07 2004-08-19 Steven Vaughan Generateur portatif de vapeur et de chaleur
US20050230416A1 (en) * 2004-03-31 2005-10-20 Mcmahon Michael J Ergonomic fluid dispenser

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5348197A (en) * 1992-08-24 1994-09-20 Omnific International Inc. Aerosol container having a side coupled pump module
US5351887A (en) * 1993-02-16 1994-10-04 Binks Manufacturing Company Pumping and spraying system for heavy materials
EP0761313A2 (fr) * 1995-09-08 1997-03-12 Owens-Illinois Closure Inc., Distributeur pompe simultane
DE19923364A1 (de) * 1999-05-21 1999-12-23 Wolfgang Mueller Pumpensystem mit hydraulischem Rührwerk für handbetätigte Rückenspritzen
US20020175222A1 (en) * 2001-03-26 2002-11-28 Vaage Lauren Jay Transportable texture applicator
WO2004070269A2 (fr) * 2003-02-07 2004-08-19 Steven Vaughan Generateur portatif de vapeur et de chaleur
US20050230416A1 (en) * 2004-03-31 2005-10-20 Mcmahon Michael J Ergonomic fluid dispenser

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2296822A1 (fr) * 2008-06-06 2011-03-23 Takashi Nishimura Dispositif de pulvérisation à manipulation sans risque
EP2296822A4 (fr) * 2008-06-06 2013-10-16 Takashi Nishimura Dispositif de pulvérisation à manipulation sans risque
CN108575963A (zh) * 2018-04-30 2018-09-28 中山市科多隆自动化设备有限公司 一种喷药设备
CN108575963B (zh) * 2018-04-30 2021-02-26 林广华 一种喷药设备
US10864538B2 (en) 2019-03-13 2020-12-15 Chapin Manufacturing, Inc. Dual chamber backpack sprayer

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