EP0470911A2 - Spraying system - Google Patents

Spraying system Download PDF

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Publication number
EP0470911A2
EP0470911A2 EP91402216A EP91402216A EP0470911A2 EP 0470911 A2 EP0470911 A2 EP 0470911A2 EP 91402216 A EP91402216 A EP 91402216A EP 91402216 A EP91402216 A EP 91402216A EP 0470911 A2 EP0470911 A2 EP 0470911A2
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EP
European Patent Office
Prior art keywords
liquid
nozzle
tube
aerosol
dispensing
Prior art date
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Granted
Application number
EP91402216A
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German (de)
French (fr)
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EP0470911A3 (en
EP0470911B1 (en
Inventor
William Edward Evans
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Sanofi Aventis France
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Roussel Uclaf SA
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Publication of EP0470911A2 publication Critical patent/EP0470911A2/en
Publication of EP0470911A3 publication Critical patent/EP0470911A3/en
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Publication of EP0470911B1 publication Critical patent/EP0470911B1/en
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    • 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
    • B05B7/02—Spray pistols; Apparatus for discharge

Definitions

  • the invention relates to a new spraying spraying system capable of distributing fluids both in the form of a sprayed liquid jet and in the form of an aerosol spray with uniform pressure and in freeing the operator from manual maintenance. pressure, allowing it to move around and away from the pressurization system.
  • a compressed air sprayer which consists of a pressurized liquid tank with manual pumping, connected to a lance held manually with a metal tube connected to the handle of the lance and a manually operated valve mechanism in the vicinity of the handle.
  • This dispensing nozzle was mounted at the end of a tube 1 cm in outside diameter about 30 cm from the handle.
  • the metal tube was filled with liquid and pressurized air, and since the nozzle orifice was smaller than the connection tube, excess fluid in the pressure tube could leak through the tip of the nozzle. the lance after the closing valve, near the handle, has been closed. This resulted in environmental problems and a loss of the valuable product to be sprayed.
  • the subject of the invention is therefore a new spraying system for dispensing at least two liquid compositions, one in the form of a wet spray jet and the other in the form of an aerosol spray, characterized in that it comprises at least two liquid supply tanks, means for pressurizing said tanks, individual capillary tubes connecting said tanks and a source of compressed air to a dispensing lance, said lance comprising a massive handle with interior conduits and means connecting one end with one of the capillary tubes, each conduit being provided with suitable means for controlling the flow of fluid which flows through it, a tube attached to the opposite end of the handle with internal capillary tubes connected by a end to the liquid conduits which pass through it and connected by the opposite end to a sprinkler head attached to the opposite end of the tube, provided with means forming a nozzle for dispensing a liquid in the form of a wet spray jet and means forming a nozzle for dispensing a liquid in the form of an aerosol jet, with the compressed air which flows through it and mixes with the liquid to form
  • aerosol applications were carried out using pre-packaged sealed aerosols or mechanical aerosol generators.
  • Pre-packaged aerosols allowed the injection of pesticides into cracks and crevices, into wall holes, etc., using a plastic torch allowing precise placement.
  • Mechanical aerosol generators are used for the spatial treatment of premises, warehouses, etc., for flying insects and crawling insects, according to the principle of the shotgun type, but they were not effective against insects deeply buried, because they were unable to penetrate to the bottom of dead holes in deep refugia, or to penetrate small cracks and crevices.
  • the present system allows the operator to have at his disposal, on a single lance, both the wet spray jet of a compressed air sprayer and the action of skidding the aerosol pre -packaged, both arranged for pinpoint precision of the application as required by today's professionals, thus minimizing over-spraying and sub-spraying, off-target spraying, passages as well as stains while reducing environmental pollution.
  • the system of the invention as a whole frees the operator from the need for manual pumping of the sprayer using regulated compressed air to maintain the desired pressure constant in a residual pesticide tank with means for agitating liquids, a wettable powder, etc. which remain on the machine during operation and also, preferably, has a 50 foot triple hose, light, with color coding and an explosion pressure of 400 psi with a triangle profile and lined externally with a transparent polyurethane sheath to reduce abrasion.
  • Said hose gives the operator the possibility of moving within a radius of 15 meters or a diameter of 30 meters around the machine with only one lance in one hand and eliminates the recovery and installation of two separate tools. This greatly reduces the possibility of crawling insects escaping after they have left their deep refuge after the watering agent has been applied.
  • the operator can operate both the hydraulic fan spray nozzle and the air-atomized aerosol simultaneously, the aerosol entering the voids first and leaving the wet jet in, on and around the insect entry / exit area.
  • the need for costly and environmentally harmful propellants and solvents is eliminated.
  • Fig. 1 illustrates the supply duct system for connecting the lance assembly to the double liquid reservoir.
  • Fig. 2 is an exploded view of the lance portion of the spraying system.
  • a pressure regulator 1 for the aerosol fluid reservoir there is a pressure regulator 1 for the aerosol fluid reservoir, a pressure regulator 2 for the residual liquid sprayer, a pressure gauge 3 for free-flowing air, connected by a flexible tube 4 to the handle of the sprayer.
  • An optional accessory is an air pressure gauge 5 connected to an air handle 6 and a filter 7.
  • the supply duct is connected to a compressor to supply pressurized air to the two liquid tanks and to the lance.
  • the lance portion of the system preferably consists of a round valve body 8, knurled, machined, held in the hand, drilled in length with three deep drilled holes, each provided at its inlet with tubular threads females 9, two of the holes open in the lower half of the valve chamber about 3/4 of the length of the valve body (these eject liquid insecticides) and the third hole runs through the entire length of the valve body. machined valve. This hole expels air only under pressure which circulates freely through the entire length of the lance and is released into the atmosphere at the end of the atomizing air jet.
  • the two valve holes are drilled and threaded vertically from the underside of the valve body, and are placed side by side and facilitate a thumb operated spring loaded open / close valve assembly 10.
  • This arrangement is preferred, from a perspective of practical application because the thumb is the most powerful organ of the hand, which therefore results in less operator fatigue and the possibility of simultaneously actuating the two valves.
  • the valve assembly is equipped with a valve blocking mechanism, for safety reasons, when the apparatus is not in use.
  • the two liquids are routed through longitudinal holes to the anterior end of the valve body 8 where they connect to threaded ends and terminate.
  • the front end of the valve body has a female threaded seat and socket to allow barbs to be screwed into the two holes in the liquid lines, where they terminate and do not extend beyond from the female threaded end of the valve body.
  • an adapter with male thread 11, conical and hollow with an overall length of about 3.8 cm with a maximum outside diameter equal to that of valve body and provided with two flat surfaces on its outside diameter, for tightening.
  • the conical shape makes it possible to reduce the diameter and to attach, via a male thread, to a hollow tube 12 with an overall length of 45.7 cm and an outside diameter of 0.95 cm, provided with a nut female coupling 13 with flanges and a welded fitting system at each end of the 0.95 cm tube.
  • the pressurized air flows freely through the interior of the 0.95 cm tube 12 and over and around the flexible tube 14 to supply only the nozzle. air atomization 21.
  • the fluid cap then purges into the atmosphere.
  • a nozzle body adapter 15 with male thread, with a total length of about 3.8 cm with a longitudinal taper ranging from about 1.27 cm on the side of the extension up to 3.8 cm from the nozzle side.
  • the sidewalls are machined to eliminate excess weight and to make the profile as small as possible.
  • two holes which are inclined at opposite angles adjusted to cut to about half the length of the nozzle body adapter 15 and are connected to a hole of more internal diameter large which in turn cuts the extension of 0.95 cm in diameter. This allows the two flexible tubes to pass through and separate them to supply each nozzle respectively.
  • the two nozzle holes 16 and 17 are arranged vertically back to back, with the nozzle assembly 16 with hydraulic fan to be placed on top and continuing at the angle determined by the female thread hole.
  • This arrangement is preferable from the point of view of practical application, because this generally requires less precise application, and if the two nozzles are actuated immediately, the wet jet is sprayed just after the atomized aerosol at the air, which is propelled by pressurized air and constantly escaping to the atmosphere to allow the aerosol release action to first manifest itself by penetrating deep into the refuges and not do not chase the wet jet out of a crack or crevice after its application, so that it can come into direct contact with the insects coming out and / or remain in place to constitute a residual barrier against entry insect future.
  • the air atomization nozzle assembly 17 is placed on the bottom, directly under the hydraulic nozzle and continuing at the same angle as its hole. This is preferable, from a practical point of view, because the tendency is to place the atomizing point with air in a crack or a crevice and to draw the lance in the direction of the operator, allowing the aiming and the placement of the nozzle from the side by tilting the lance slightly to one side or the other.
  • the hydraulic nozzle assembly consists of four parts, namely a male thread pipe beard 18 on one end to be connected to the flexible capillary liquid line via the beard and to be connected to the female thread with internal thread of the body of hollow nozzle 19, a male threaded seat on the hollow nozzle body 19 externally machined, which screws into the upper hole of the nozzle adapter body, an O-ring stuffing 19a placed in a socket machined with the nozzle body which makes it possible to produce a tight seal when the quick-dismounting portion comprising the nozzle proper is pushed inside and rotated by 90 ° to lock in place.
  • the sprinkler body can accept a variety of sprinklers of various designs such as hairpin jets or flat jet blowers of varying shapes and flow rates.
  • the flat jet models have an elliptical shape so that the density of the jet is constant at the edges as in the center. It should also be noted that the quick-dismounting nozzle makes it easier to change the head and to clean the nozzle, if a blockage occurs, without using tools or releasing the pressure from the chemical tank.
  • the air spray nozzle assembly consists of an outlet pipe tail with a pipe beard 20 at one end and a face seal cup 20 machined and shouldered to accept a rubber O-ring 21,
  • the outlet pipe tail 20 has an outer diameter machined with recessed shoulders allowing the tail to extend into the nozzle body adapter 15 so as to allow the pipe beard portion to connect to the flexible capillary tube while the sealing face of the seal cup rests on a machined shoulder in the nozzle body adapter deep enough for the O-ring to be pressed into place to form a liquid / air tight seal allowing air to pass around the outside of the entire pipe tail.
  • the O-ring is attached to and around the outside diameter of the rear rod area of the fluid cap which has a taper with holes which are arranged in a circular pattern around the collar to allow free flowing air to pass cross them.
  • the hollow center of the fluid cap likewise has an identical internal taper up to a specified dimension to allow control of the fluid flow rate.
  • the fluid cap interfaces with the air cap 22 which has a hollow interior and an outside diameter slightly larger than the collar on the fluid cap, allowing the collar to fit flush and just interior of the air cap thus coming to bear on a shoulder machined therein. This allows pressurized air to pass through the collar of the fluid cap and into the flange on the air cap.
  • the air cap is held in place by a hex nut 23 machined at one end to allow the extended hollow tube of the air cap to pass through while the other end has an external male thread that connects to the female thread on the '' nozzle body adapter, tightening the hex nut together compresses the air cap, fluid cap and o-ring to form an air / liquid seal.
  • the pressurized air is then forced into a conical chamber and, by controlling the valves, it meets the current of liquid which is broken up into fine droplets by the force of the pressurized air, which creates particles. aerosol.
  • the aerosol particles are then drawn out of the air cap via the air flow flowing freely in the insect shelter. If desired, the operator can release the coolant valve and allow the free flowing air to continue to build pressure in the cavity without dispensing additional coolant. This saves pesticide and reduces pollution of the environment since air is the propellant.
  • the system has the advantage that the two products can be dispensed from a single lance without mutual contamination of the products and ensures constant pressure both on the aerosol side and on the side of the residual liquid in the system, regulating the air, not the fluid, which greatly extends the life expectancy of the regulators.
  • the nozzle means for distributing the liquid spray jet are arranged above the aerosol jet nozzle.
  • the three capillary tubes connecting the lance to the reservoirs and to the compressor have a color code and are housed in a plastic sheath. Color codes help avoid errors when making connections.
  • An elliptical profile of the flat jet heads applies the strip in a regular pattern to the edges as well as to the center, which reduces runoff, stains and product loss. Quick change heads allow cleaning and head change without reducing pressure.
  • the liquid tanks and the compressor and the piping are all mounted on a two-wheeled cart, so that the operator can roll the entire system to a work area and if there is a length of 15 meters between the three tubes connecting the lance and the various tanks on the carriage, the operator is free to move all around in a large area, so as not to have to stop to move his device when he moves himself. It is also possible to adapt the lance to add an additional pipe to dispense an additional jet of liquid or powder if desired.
  • the switch means are adapted such that either one or both liquids can be applied together or both cut off.
  • the nozzle means are rapid disassembly nozzles so that they can be easily and quickly replaced if necessary or removed for cleaning.
  • the handle of the lance is also preferably made of metal to prevent it from cracking or breaking if it falls. In addition, the metal must be resistant to liquids passing through it.
  • the handle is a round body, made of aluminum and knurled. The use of plastic should be avoided, because often the plastic swells or breaks down under the action of the liquids used.
  • the invention also relates to a lance for dispensing a liquid in the form of a wet spray jet and a second liquid in the form of an aerosol jet, characterized in that it comprises a massive handle with three internal conduits and individual means of connection of one end with a capillary tube, each conduit being provided with suitable means for controlling the flow of fluid which traverses it, a tube attached to the opposite end of the handle with internal capillary tubes connected by a end to the liquid conduits which pass through it and connected by the opposite end to a nozzle head attached to the opposite end of the tube, provided with nozzle means for dispensing a liquid in the form of a wet spray and means forming a nozzle for dispensing a liquid in the form of an aerosol jet, with the compressed air which flows through it and mixes with the liquid to form the jet of aerosol and compressed air which passes through the handle directly into the tube to mix with the liquid in the nozzle means for the aerosol spray.

Abstract

Apparatus for dispensing at least two liquid compositions, one in the form of a wet sprayed stream and the other in the form of an aerosol stream, comprising at least two liquid feed reservoirs, means for pressurising the said reservoirs, individual capillary tubes connecting the said reservoirs and a compressed-air source to a dispensing nozzle, the said nozzle comprising a grip integral with the internal conduits and means for connecting one end with one of the capillary tubes, each conduit being provided with suitable means for controlling the flow rate of fluid which passes through it; a tube attached to the opposite end of the grip with the internal capillary tubes connected to the liquid conduits which traverse it towards a nozzle head which is attached to the opposite end of the tube and provided with means forming a nozzle in order to dispense a liquid in the form of a wet sprayed stream and with means forming a nozzle in order to dispense a liquid in the form of an aerosol stream, with the compressed air which passes through them and is mixed with the liquid in order to form the aerosol stream and the compressed air which passes through the grip directly into the tube in order to be mixed with the liquid in the nozzle in order to form the aerosol stream, for applying insecticides both in the form of a sprayed liquid stream and in the form of an aerosol stream. <IMAGE>

Description

L'invention concerne un nouveau système de pulvérisation de pulvérisation capable de distribuer des fluides à la fois sous forme d'un jet liquide pulvérisé et sous forme d'un jet d'aérosol avec une pression uniforme et de libérer l'opérateur du maintien manuel de la pression, lui permettant ainsi de se mouvoir autour et à distance du système de mise sous pression.The invention relates to a new spraying spraying system capable of distributing fluids both in the form of a sprayed liquid jet and in the form of an aerosol spray with uniform pressure and in freeing the operator from manual maintenance. pressure, allowing it to move around and away from the pressurization system.

On connaît un pulvérisateur à air comprimé se composant d'un réservoir de liquide sous pression à pompage manuel, relié à une lance tenue manuellement avec un tube métallique raccordé à la poignée de la lance et un mécanisme de soupape à commande manuelle au voisinage de la poignée. Ce gicleur de distribution était monté au bout d'un tube de 1 cm de diamètre extérieur à environ 30 cm de la poignée. Lorsque la pulvérisation était arrêtée, le tube métallique était rempli de liquide et d'air sous pression et puisque l'orifice du gicleur était plus petit que le tube de raccordement, le fluide en excès dans le tube sous pression pouvait fuir par la pointe de la lance après que la soupape de fermeture, près de la poignée, ait été fermée. Il en résultait des problèmes d'environnement et une perte du produit de valeur à pulvériser.A compressed air sprayer is known which consists of a pressurized liquid tank with manual pumping, connected to a lance held manually with a metal tube connected to the handle of the lance and a manually operated valve mechanism in the vicinity of the handle. This dispensing nozzle was mounted at the end of a tube 1 cm in outside diameter about 30 cm from the handle. When spraying was stopped, the metal tube was filled with liquid and pressurized air, and since the nozzle orifice was smaller than the connection tube, excess fluid in the pressure tube could leak through the tip of the nozzle. the lance after the closing valve, near the handle, has been closed. This resulted in environmental problems and a loss of the valuable product to be sprayed.

Une solution à ce problème consistait à resituer le mécanisme de soupape de fermeture à côté, et immédiatement derrière, le gicleur. Puisque la lance d'application est habituellement courbe à ou près de l'extrémité portant le gicleur, on utilisait un câble fileté aux deux bouts pour relier la soupape à commande manuelle et le mécanisme de fermeture, via l'intérieur du tube de raccordement.One solution to this problem was to locate the shut-off valve mechanism next to, and immediately behind, the nozzle. Since the application lance is usually curved at or near the end carrying the nozzle, a threaded cable was used at both ends to connect the manually operated valve and the closing mechanism, via the inside of the connection tube.

Du fait que le fonctionnement de ce système doit dépendre d'une pompe manuelle pour créer la pression désirée d'environ 30 psi pour commencer l'application du liquide, il apparaît des problèmes parce que chaque manoeuvre ultérieure du mécanisme de soupape provoque moins de pression et que la forme et le débit varient, ce qui conduit à des taches, ainsi qu'à des sur-pulvérisations ou des sous-pulvérisations. La régularité du jet pulvérisé dépend uniquement du niveau d'énergie de l'opérateur pour maintenir une pression constante dans le pulvérisateur pour éviter une application insuffisante. De plus, l'opérateur devait avoir le pulvérisateur à ses côtés à tout instant pendant qu'il chasse les insectes de leurs refuges profonds, de façon à pouvoir abattre et tuer les insectes à mesure qu'ils apparaissent. Sinon, ces insectes vont s'échapper pour réinfester d'autres zones de la structure et cela signifie que l'opérateur soulève et repose constamment l'un ou l'autre outil pendant toute l'application. Invariablement, certains insectes s'échappent, ce qui impose un surcroît de temps et de mouvement, et diminue la rentabilité de l'opérateur.Because the operation of this system must depend on a manual pump to create the desired pressure of approximately 30 psi to begin application of the liquid, problems arise because each subsequent operation of the valve mechanism causes less pressure and that the shape and the flow rate vary, which leads to spots, as well as to over-spraying or sub-spraying. The regularity of the spray depends only on the energy level of the operator to maintain a constant pressure in the sprayer to avoid insufficient application. In addition, the operator had to have the sprayer at his side at all times while hunting insects from their deep refugia, so that they could kill and kill the insects as they appeared. Otherwise, these insects will escape to re-infest other areas of the structure and this means that the operator constantly lifts and rests one or the other tool during the entire application. Invariably, some insects escape, which requires additional time and movement, and reduces the operator's profitability.

L'invention a donc pour objet un nouveau système de pulvérisation pour distribuer au moins deux compositions liquides, l'une sous forme de jet pulvérisé humide et l'autre sous forme de jet d'aérosol, caractérisé en ce qu'il comprend au moins deux réservoirs d'alimentation en liquide, des moyens pour mettre lesdits réservoirs sous pression, des tubes capillaires individuels raccordant lesdits réservoirs et une source d'air comprimé à une lance de distribution, ladite lance comprenant une poignée massive avec des conduits intérieurs et des moyens de raccordement d'une extrémité avec l'un des tubes capillaires, chaque conduit étant pourvu de moyens appropriés pour commander le débit de fluide qui le parcourt, un tube attaché à l'extrémité opposée de la poignée avec des tubes capillaires intérieurs reliés par une extrémité aux conduits de liquide qui le traversent et reliés par l'extrémité opposée à une tête de gicleur attachée à l'extrémité opposée du tube, pourvue de moyens formant gicleur pour distribuer un liquide sous la forme d'un jet pulvérisé humide et de moyens formant gicleur pour distribuer un liquide sous la forme d'un jet d'aérosol, avec l'air comprimé qui le parcourt et se mélange avec le liquide pour former le jet d'aérosol et l'air comprimé qui passe à travers la poignée directement dans le tube pour se mélanger avec le liquide dans les moyens formant gicleur pour le jet d'aérosol.The subject of the invention is therefore a new spraying system for dispensing at least two liquid compositions, one in the form of a wet spray jet and the other in the form of an aerosol spray, characterized in that it comprises at least two liquid supply tanks, means for pressurizing said tanks, individual capillary tubes connecting said tanks and a source of compressed air to a dispensing lance, said lance comprising a massive handle with interior conduits and means connecting one end with one of the capillary tubes, each conduit being provided with suitable means for controlling the flow of fluid which flows through it, a tube attached to the opposite end of the handle with internal capillary tubes connected by a end to the liquid conduits which pass through it and connected by the opposite end to a sprinkler head attached to the opposite end of the tube, provided with means forming a nozzle for dispensing a liquid in the form of a wet spray jet and means forming a nozzle for dispensing a liquid in the form of an aerosol jet, with the compressed air which flows through it and mixes with the liquid to form the aerosol spray and the compressed air which passes through the handle directly into the tube to mix with the liquid in the nozzle means for the aerosol spray.

Avant cette invention, les applications d'aérosols étaient effectuées au moyen d'aérosols pré-emballés scellés ou de générateurs d'aérosols mécaniques. Les aérosols pré-emballés permettaient l'injection de pesticides dans les fissures et les crevasses, dans les trous de murs, etc, en utilisant un chalumeau de plastique permettant une mise en place précise. Les générateurs d'aérosols mécaniques sont utilisés pour le traitement spatial de locaux, d'entrepôts, etc, pour les insectes volants et les insectes rampants, suivant le principe du type de fusil de chasse, mais ils n'étaient pas efficaces contre les insectes profondément enfouis, parce qu'ils n'étaient pas capables de pénétrer jusqu'au fond de trous morts des refuges profonds, ou de pénétrer dans les petites fissures et crevasses.Before this invention, aerosol applications were carried out using pre-packaged sealed aerosols or mechanical aerosol generators. Pre-packaged aerosols allowed the injection of pesticides into cracks and crevices, into wall holes, etc., using a plastic torch allowing precise placement. Mechanical aerosol generators are used for the spatial treatment of premises, warehouses, etc., for flying insects and crawling insects, according to the principle of the shotgun type, but they were not effective against insects deeply buried, because they were unable to penetrate to the bottom of dead holes in deep refugia, or to penetrate small cracks and crevices.

Le présent système permet à l'opérateur ou à l'opératrice d'avoir à sa disposition, sur une seule lance, à la fois le jet pulvérisé humide d'un pulvérisateur à air comprimé et l'action de débussage de l'aérosol pré-emballé, les deux agencés pour une précision de tête d'épingle de l'application comme le demandent les professionnels d'aujourd'hui, minimisant ainsi les sur-pulvérisations et les sous-pulvérisations, les pulvérisations hors cible, les passages ainsi que les taches tout en réduisant la pollution de l'environnement.The present system allows the operator to have at his disposal, on a single lance, both the wet spray jet of a compressed air sprayer and the action of skidding the aerosol pre -packaged, both arranged for pinpoint precision of the application as required by today's professionals, thus minimizing over-spraying and sub-spraying, off-target spraying, passages as well as stains while reducing environmental pollution.

Le système de l'invention dans son ensemble libère l'opérateur de la nécessité du pompage manuel du pulvérisateur en utilisant de l'air comprimé régulé pour maintenir la pression désirée constante dans un réservoir de pesticide résiduel avec des moyens pour agiter les liquides, une poudre mouillable, etc, qui restent sur la machine pendant le fonctionnement et aussi, de préférence, comporte un tuyau triple de 50 pieds, léger, avec codage de couleurs et une pression d'explosion de 400 psi à profil en triangle et chemisé extérieurement avec une gaine de polyuréthane transparent pour réduire l'abrasion.The system of the invention as a whole frees the operator from the need for manual pumping of the sprayer using regulated compressed air to maintain the desired pressure constant in a residual pesticide tank with means for agitating liquids, a wettable powder, etc. which remain on the machine during operation and also, preferably, has a 50 foot triple hose, light, with color coding and an explosion pressure of 400 psi with a triangle profile and lined externally with a transparent polyurethane sheath to reduce abrasion.

Ledit tuyau donne à l'opérateur la possibilité de se mouvoir dans un rayon de 15 mètres ou un diamètre de 30 mètres autour de la machine avec seulement une lance dans une seule main et supprime la reprise et la repose de deux outils séparés. Cela réduit fortement la possibilité que des insectes rampants s'échappent une fois qu'ils sont sortis de leur refuge profond après que l'agent d'arrosage ait été appliqué.Said hose gives the operator the possibility of moving within a radius of 15 meters or a diameter of 30 meters around the machine with only one lance in one hand and eliminates the recovery and installation of two separate tools. This greatly reduces the possibility of crawling insects escaping after they have left their deep refuge after the watering agent has been applied.

Dans de nombreux cas l'opérateur peut actionner à la fois le gicleur de pulvérisation à ventilateur hydraulique et l'aérosol atomisé à l'air simultanément, l'aérosol pénétrant le premier dans les vides et laissant le jet humide dans, sur et autour de la zone d'entrée/sortie des insectes. En utilisant de l'air en permanence pour propulser l'aérosol, on supprime le besoin de faire appel à des propulseurs et des solvants coûteux et néfastes pour l'environnement.In many cases the operator can operate both the hydraulic fan spray nozzle and the air-atomized aerosol simultaneously, the aerosol entering the voids first and leaving the wet jet in, on and around the insect entry / exit area. By constantly using air to propel the aerosol, the need for costly and environmentally harmful propellants and solvents is eliminated.

Des essais sur site ont démontré que ce système économise environ 25 % du temps de travail de l'opérateur tout en consacrant son énergie à sa tâche d'élimination des parasites visés et non au pompage manuel de son pulvérisateur à air comprimé. Cela ne peut qu'augmenter les gains par jour et les postes entretenus en un jour, avec une amélioration globale des prestations par rapport au parasite visé.On-site tests have shown that this system saves about 25% of the operator's working time while devoting its energy to its task of eliminating the targeted parasites and not to the manual pumping of its compressed air sprayer. This can only increase the earnings per day and the positions maintained in one day, with an overall improvement in benefits compared to the target parasite.

Une réalisation non limitative du dispositif de l'invention est présentée sur les figures ci-jointes.A non-limiting embodiment of the device of the invention is presented in the attached figures.

La Fig. 1 illustre le système de conduits d'alimentation pour relier l'ensemble de lance au double réservoir de liquide.Fig. 1 illustrates the supply duct system for connecting the lance assembly to the double liquid reservoir.

La Fig. 2 est une vue explosée de la portion de lance du système de pulvérisation.Fig. 2 is an exploded view of the lance portion of the spraying system.

Dans la Fig. 1, il est prévu un régulateur de pression 1 pour le réservoir du fluide de l'aérosol, un régulateur de pression 2 pour le pulvérisateur de liquide résiduel, un manomètre 3 pour l'air à écoulement libre, raccordé par un tube flexible 4 à la poignée du pulvérisateur. Un accessoire facultatif est un manomètre à air 5 relié à une poignée à air 6 et un filtre 7. Le conduit d'alimentation est raccordé à un compresseur pour fournir l'air sous pression aux deux réservoirs de liquide et à la lance.In Fig. 1, there is a pressure regulator 1 for the aerosol fluid reservoir, a pressure regulator 2 for the residual liquid sprayer, a pressure gauge 3 for free-flowing air, connected by a flexible tube 4 to the handle of the sprayer. An optional accessory is an air pressure gauge 5 connected to an air handle 6 and a filter 7. The supply duct is connected to a compressor to supply pressurized air to the two liquid tanks and to the lance.

Considérant la Fig. 2, la portion de lance du système est de préférence constituée d'un corps de soupape rond 8, moleté, usiné, tenu à la main, percé en longueur de trois trous forés profonds, chacun muni à son orifice d'entrée de filets tubulaires femelles 9, deux des trous s'ouvrent dans la moitié inférieure de la chambre de soupape à environ 3/4 de la longueur du corps de soupape (ceux-ci éjectent les insecticides liquides) et le troisième trou traverse toute la longueur du corps de soupape usiné. Ce trou expulse l'air uniquement sous pression qui circule librement à travers toute la longueur de la lance et est rejeté dans l'atmosphère à l'extrémité du gicleur d'atomisation à l'air.Considering FIG. 2, the lance portion of the system preferably consists of a round valve body 8, knurled, machined, held in the hand, drilled in length with three deep drilled holes, each provided at its inlet with tubular threads females 9, two of the holes open in the lower half of the valve chamber about 3/4 of the length of the valve body (these eject liquid insecticides) and the third hole runs through the entire length of the valve body. machined valve. This hole expels air only under pressure which circulates freely through the entire length of the lance and is released into the atmosphere at the end of the atomizing air jet.

Les deux trous de soupape sont forés et filetés verticalement à partir de la face inférieure du corps de soupape, et ils sont placés côte à côte et facilitent un ensemble de soupape d'ouverture/fermeture 10, à ressort, actionné par le pouce. Cette disposition est préférée, dans une perspective d'application pratique parce que le pouce est l'organe le plus puissant de la main, ce qui entraîne dès lors moins de fatigue de l'opérateur et la possibilité d'actionner simultanément les deux soupapes. De même, l'ensemble de soupape est équipé d'un mécanisme de blocage des soupapes, pour des raisons de sécurité, lorsque l'appareil n'est pas en service.The two valve holes are drilled and threaded vertically from the underside of the valve body, and are placed side by side and facilitate a thumb operated spring loaded open / close valve assembly 10. This arrangement is preferred, from a perspective of practical application because the thumb is the most powerful organ of the hand, which therefore results in less operator fatigue and the possibility of simultaneously actuating the two valves. Likewise, the valve assembly is equipped with a valve blocking mechanism, for safety reasons, when the apparatus is not in use.

De l'ensemble de soupape, les deux liquides sont conduits à travers des trous longitudinaux jusqu'à l'extrémité antérieure du corps de soupape 8 où ils se raccordent à des bouts filetés et se terminent. L'extrémité antérieure du corps de soupape est pourvue d'une portée filetée et d'un emboîtage femelles pour permettre de visser des barbes de tuyau dans les deux trous des conduits de liquide, où ils se terminent et ne se prolongent pas au-delà de l'extrémité filetée femelle du corps de soupape.From the valve assembly, the two liquids are routed through longitudinal holes to the anterior end of the valve body 8 where they connect to threaded ends and terminate. The front end of the valve body has a female threaded seat and socket to allow barbs to be screwed into the two holes in the liquid lines, where they terminate and do not extend beyond from the female threaded end of the valve body.

Attaché aux filetages femelles à la partie la plus antérieure du corps de soupape, il y a un adapteur à filetage mâle 11, conique et creux, d'une longueur globale d'environ 3,8 cm avec un diamètre extérieur maximum égal à celui du corps de soupape et pourvu de deux surfaces plates sur son diamètre extérieur, pour le serrage. La forme conique permet de réduire le diamètre et d'attacher, via un filetage mâle, à un tube creux 12 d'une longueur globale de 45,7 cm et d'un diamètre extérieur de 0,95 cm, pourvu d'un écrou d'accouplement femelle 13 avec des pans etd'un système de fixation à ferrure soudé à chaque bout du tube de 0,95 cm.Attached to the female threads at the most anterior part of the valve body, there is an adapter with male thread 11, conical and hollow, with an overall length of about 3.8 cm with a maximum outside diameter equal to that of valve body and provided with two flat surfaces on its outside diameter, for tightening. The conical shape makes it possible to reduce the diameter and to attach, via a male thread, to a hollow tube 12 with an overall length of 45.7 cm and an outside diameter of 0.95 cm, provided with a nut female coupling 13 with flanges and a welded fitting system at each end of the 0.95 cm tube.

Aux barbes des tuyaux, sur l'extrémité la plus antérieure du corps de soupape et traversant intérieurement sur toute sa longueur le tube creux de 0,95 cm sont attachés deux tubes flexibles 14 d'environ 0,32 cm de diamètre extérieur, dont l'un a la valeur 90 au duromètre, pour résister à l'écrasement. Cela est préférable en raison de l'action de l'air sous pression à écoulement libre et de sa tendance à écraser la canalisation hydraulique, ce qui provoque forcément une fuite à l'extrémité du gicleur puisqu'il n'y a pas de fermeture au gicleur, tandis que l'autre, de valeur 60 au duromètre, alimente le gicleur d'atomisation à l'air. Il faut noter la contre-pression d'air provoquée par l'étranglement au capuchon du fluide pour garder le liquide sous contrôle dans la canalisation de 60 au duromètre.To the barbs of the pipes, on the most anterior end of the valve body and passing internally over its entire length the hollow tube of 0.95 cm are attached two flexible tubes 14 of about 0.32 cm outside diameter, of which l one is 90 on the durometer, to resist crushing. This is preferable due to the action of free-flowing pressurized air and its tendency to crush the hydraulic line, which necessarily causes a leak at the end of the nozzle since there is no closure to the nozzle, while the other, of value 60 to the durometer, supplies the atomization nozzle to the air. Note the air back pressure caused by the constriction at the fluid cap to keep the liquid under control in line 60 at the durometer.

L'air sous pression passe librement à travers l'intérieur du tube 12 de 0,95 cm et sur et autour du tube flexible 14 pour alimenter uniquement le gicleur d'atomisation à l'air 21. Le capuchon à fluide purge alors à l'atmosphère.The pressurized air flows freely through the interior of the 0.95 cm tube 12 and over and around the flexible tube 14 to supply only the nozzle. air atomization 21. The fluid cap then purges into the atmosphere.

Au bout du gicleur du tube de prolongement est attaché un adaptateur 15 de corps de gicleur, à filetage mâle, d'une longueur totale d'environ 3,8 cm avec une conicité longitudinale allant d'environ 1,27 cm du côté du prolongement jusqu'à 3,8 cm du côté du gicleur. Les flancs sont usinés pour éliminer le poids superflu et pour donner un profil aussi petit que possible. Dans l'extrémité du côté du gicleursont percés et filetés deux trous qui sont inclinés sous des angles opposés réglés pour se couper à environ la moitié de la longueur de l'adaptateur du corps de gicleur 15 et se raccordent à un trou de diamètre intérieur plus grand qui à son tour coupe le prolongement de 0,95 cm de diamètre. Cela permet de faire passer les deux tubes flexibles à travers et de les séparer pour alimenter respectivement chaque gicleur.At the end of the nozzle of the extension tube is attached a nozzle body adapter 15, with male thread, with a total length of about 3.8 cm with a longitudinal taper ranging from about 1.27 cm on the side of the extension up to 3.8 cm from the nozzle side. The sidewalls are machined to eliminate excess weight and to make the profile as small as possible. In the end of the side of the nozzle are drilled and threaded two holes which are inclined at opposite angles adjusted to cut to about half the length of the nozzle body adapter 15 and are connected to a hole of more internal diameter large which in turn cuts the extension of 0.95 cm in diameter. This allows the two flexible tubes to pass through and separate them to supply each nozzle respectively.

Les deux trous de gicleur 16 et 17 sont disposés verticalement dos à dos, avec l'ensemble de gicleur 16 à ventilateur hydraulique à poser sur le dessus et continuant suivant l'angle déterminé par le trou à filetage femelle. Cette disposition est préférable, d'un point de vue de l'application pratique, parce que cela nécessite une application moins précise en règle générale, et si les deux gicleurs sont actionnés immédiatement, le jet humide est projeté juste après l'aérosol atomisé à l'air, qui est propulsé par l'air sous pression et s'échappant en permanence à l'atmosphère pour permettre à l'action de débussage de l'aérosol de se manifester d'abord en pénétrant profondément dans les refuges et de ne pas chasser le jet humide hors d'une fissure ou d'une crevasse après son application, de sorte qu'il puisse venir en contact direct avec les insectes en train de sortir et/ou rester en place pour constituer une barrière résiduelle contre une entrée future d'insectes. L'ensemble 17 de gicleur d'atomisation à l'airest placé sur le fond, directement sous le gicleur hydraulique et continuant suivant le même angle que son trou. Ceci est préférable, d'un point de vue pratique, car la tendance est de placer la pointe d'atomisation à l'air dans une fissure ou une crevasse et de tirer la lance en direction de l'opérateur, permettant la visée et le placement du gicleur par le côté en basculant légèrement la lance d'un côté ou de l'autre.The two nozzle holes 16 and 17 are arranged vertically back to back, with the nozzle assembly 16 with hydraulic fan to be placed on top and continuing at the angle determined by the female thread hole. This arrangement is preferable from the point of view of practical application, because this generally requires less precise application, and if the two nozzles are actuated immediately, the wet jet is sprayed just after the atomized aerosol at the air, which is propelled by pressurized air and constantly escaping to the atmosphere to allow the aerosol release action to first manifest itself by penetrating deep into the refuges and not do not chase the wet jet out of a crack or crevice after its application, so that it can come into direct contact with the insects coming out and / or remain in place to constitute a residual barrier against entry insect future. The air atomization nozzle assembly 17 is placed on the bottom, directly under the hydraulic nozzle and continuing at the same angle as its hole. This is preferable, from a practical point of view, because the tendency is to place the atomizing point with air in a crack or a crevice and to draw the lance in the direction of the operator, allowing the aiming and the placement of the nozzle from the side by tilting the lance slightly to one side or the other.

L'ensemble de gicleur hydraulique se compose de quatre parties, à savoir une barbe de tuyau à filetage mâle 18 sur une extrémité à raccorder à la canalisation capillaire flexible de liquide via la barbe et à raccorder à la portée femelle à filetage interne du corps de gicleur creux 19, une portée mâle filetée sur le corps de gicleur creux 19 extérieurement usiné, qui se visse dans le trou supérieur du corps d'adaptateur du gicleur, un bourrage 19a à joint torique posé dans une douille usinée avec le corps de gicleur qui permet de réaliser un joint étanche lorsque la portion à démontage rapide comprenant le gicleur proprement dit est poussée à l'intérieur et tournée de 90° pour se verrouiller en place. Le corps de gicleur peut accepter une variété de gicleurs de divers modèles tels que des jets en épingle ou des soufflantes à jet plat de formes et de débit variables. Il faut noter que les modèles à jet plat ont une forme elliptique de telle sorte que la densité du jet soit constante aux bords comme au centre. Il faut aussi noter que le gicleur à démontage rapide facilite le changement de tête ainsi que le nettoyage du gicleur, s'il se produit un blocage, sans utiliser des outils ou sans relâcher la pression du réservoir chimique.The hydraulic nozzle assembly consists of four parts, namely a male thread pipe beard 18 on one end to be connected to the flexible capillary liquid line via the beard and to be connected to the female thread with internal thread of the body of hollow nozzle 19, a male threaded seat on the hollow nozzle body 19 externally machined, which screws into the upper hole of the nozzle adapter body, an O-ring stuffing 19a placed in a socket machined with the nozzle body which makes it possible to produce a tight seal when the quick-dismounting portion comprising the nozzle proper is pushed inside and rotated by 90 ° to lock in place. The sprinkler body can accept a variety of sprinklers of various designs such as hairpin jets or flat jet blowers of varying shapes and flow rates. It should be noted that the flat jet models have an elliptical shape so that the density of the jet is constant at the edges as in the center. It should also be noted that the quick-dismounting nozzle makes it easier to change the head and to clean the nozzle, if a blockage occurs, without using tools or releasing the pressure from the chemical tank.

L'ensemble de gicleur d'atomisation à l'air se compose d'une queue de tuyau de sortie avec une barbe de tuyau 20 à une extrémité et d'une coupelle de joint facial 20 usinée et épaulée pour accepter un joint torique en caoutchouc 21, la queue de tuyau de sortie 20 a un diamètre extérieur usiné avec des épaulements en retrait permettant à la queue de s'étendre dans l'adaptateur de corps de gicleur 15 de façon à permettre à la portion de barbe de tuyau de se raccorder au tube capillaire flexible tandis que la face d'étanchéité de la coupelle de joint prend appui sur un épaulement usiné dans l'adaptateur de corps de gicleur assez profondément pour que le joint torique soit pressé en place pour former un joint étanche liquide/air tout en permettant à l'air de passer autour de l'extérieur de toute la queue de tuyau. Le joint torique est attaché sur et autour du diamètre extérieur de la zone de tige arrière du capuchon de fluide qui présente une conicité avec des trous qui sont disposés en un dessin circulaire autour du collier pour permettre à l'air s'écoulant librement de passer les traverser. Le centre creux du capuchon de fluide présente de même une conicité interne identique jusqu'à une dimension spécifiée pour permettre le contrôle du débit de fluide. Le capuchon de fluide forme un interface avec le capuchon à air 22 qui possède un intérieur creux et un diamètre extérieur légèrement plus grand que le collier sur le capuchon de fluide, ce qui permet au collier de s'adapter au ras et juste à l'intérieur du capuchon à air venant ainsi prendre appui sur un épaulement usiné dans celui-ci. Ceci permet à l'air sous pression de passer à travers le collier du capuchon de fluide et dans la bride sur le capuchon à air.The air spray nozzle assembly consists of an outlet pipe tail with a pipe beard 20 at one end and a face seal cup 20 machined and shouldered to accept a rubber O-ring 21, the outlet pipe tail 20 has an outer diameter machined with recessed shoulders allowing the tail to extend into the nozzle body adapter 15 so as to allow the pipe beard portion to connect to the flexible capillary tube while the sealing face of the seal cup rests on a machined shoulder in the nozzle body adapter deep enough for the O-ring to be pressed into place to form a liquid / air tight seal allowing air to pass around the outside of the entire pipe tail. The O-ring is attached to and around the outside diameter of the rear rod area of the fluid cap which has a taper with holes which are arranged in a circular pattern around the collar to allow free flowing air to pass cross them. The hollow center of the fluid cap likewise has an identical internal taper up to a specified dimension to allow control of the fluid flow rate. The fluid cap interfaces with the air cap 22 which has a hollow interior and an outside diameter slightly larger than the collar on the fluid cap, allowing the collar to fit flush and just interior of the air cap thus coming to bear on a shoulder machined therein. This allows pressurized air to pass through the collar of the fluid cap and into the flange on the air cap.

Le capuchon à air est maintenu en place par un écrou hexagonal 23 usiné à une extrémité pour permettre au tube creux prolongé du capuchon à air de passer à travers tandis que l'autre extrémité possède un filetage mâle extérieur qui se raccorde au filetage femelle sur l'adaptateur de corps de gicleur, le serrage de l'écrou hexagonal comprime ensemble le capuchon à air, le capuchon à fluide et le joint torique pour former un joint étanche air/liquide. L'air sous pression est alors forcé vers une chambre conique et, en commandant les soupapes, il rencontre le courant de liquide qui est brisé en fines gouttelettes par la force de l'air sous pression, ce qui crée des particules d'aérosol. Les particules d'aérosol sont alors entrai- nées hors du capuchon à air via le courant d'air s'écoulant librement dans le refuge des insectes. S'il le désire, l'opérateur peut lâcher la soupape d'agent d'arrosage et permettre à l'air en écoulement libre de continuer à créer une pression dans la cavité sans distribuer d'agent d'arrosage supplémentaire. Ceci économise du pesticide et réduit la pollution de l'environnement puisque l'air est le gaz propulseur.The air cap is held in place by a hex nut 23 machined at one end to allow the extended hollow tube of the air cap to pass through while the other end has an external male thread that connects to the female thread on the '' nozzle body adapter, tightening the hex nut together compresses the air cap, fluid cap and o-ring to form an air / liquid seal. The pressurized air is then forced into a conical chamber and, by controlling the valves, it meets the current of liquid which is broken up into fine droplets by the force of the pressurized air, which creates particles. aerosol. The aerosol particles are then drawn out of the air cap via the air flow flowing freely in the insect shelter. If desired, the operator can release the coolant valve and allow the free flowing air to continue to build pressure in the cavity without dispensing additional coolant. This saves pesticide and reduces pollution of the environment since air is the propellant.

Le système a l'avantage que les deux produits peuvent être distribués à partir d'une lance unique sans contamination mutuelle des produits et assure une pression constante à la fois sur le côté d'aérosol et sur le côté du liquide résiduel du système, en régulant l'air, et non le fluide, ce qui prolonge grandement l'espérance de vie des régulateurs.The system has the advantage that the two products can be dispensed from a single lance without mutual contamination of the products and ensures constant pressure both on the aerosol side and on the side of the residual liquid in the system, regulating the air, not the fluid, which greatly extends the life expectancy of the regulators.

Dans un mode d'exécution préféré, les moyens formant gicleur pour distribuer le jet pulvérisé liquide sont disposés au-dessus du gicleur à jet d'aérosol.In a preferred embodiment, the nozzle means for distributing the liquid spray jet are arranged above the aerosol jet nozzle.

Dans un autre mode d'exécution préféré, les trois tubes capillaires raccordant la lance aux réservoirs et au compresseur ont un code de couleur et sont logés dans une gaine de plastique. Les codes de couleurs permettent d'éviter les erreurs en établissant les raccordements. Un profil elliptique des têtes à jet plat applique la bande en un dessin régulier aux bords aussi bien qu'au centre, ce qui réduit les écoulements, les taches et les pertes de produit. Les têtes à changement rapide permettent le nettoyage et le changement de tête sans réduire la pression.In another preferred embodiment, the three capillary tubes connecting the lance to the reservoirs and to the compressor have a color code and are housed in a plastic sheath. Color codes help avoid errors when making connections. An elliptical profile of the flat jet heads applies the strip in a regular pattern to the edges as well as to the center, which reduces runoff, stains and product loss. Quick change heads allow cleaning and head change without reducing pressure.

Dans une mise en oeuvre préférée de l'invention, les réservoirs de liquide et le compresseur et les canalisations sont tous montés sur un chariot à deux roues, de sorte que l'opérateur peut faire rouler le système entier jusqu'à une zone de travail et s'il y a une longueur de 15 mètres entre les trois tubes reliant la lance et les divers réservoirs sur le chariot, l'opérateur est libre de se mouvoir tout autour dans une grande zone, de façon à ne pas devoir s'arrêter pour déplacer son appareil lorsque lui-même se déplace. Il est également possible d'adapter la lance pour ajouter une canalisation supplémentaire pour distribuer un jet de liquide ou de poudre en plus si on le désire.In a preferred embodiment of the invention, the liquid tanks and the compressor and the piping are all mounted on a two-wheeled cart, so that the operator can roll the entire system to a work area and if there is a length of 15 meters between the three tubes connecting the lance and the various tanks on the carriage, the operator is free to move all around in a large area, so as not to have to stop to move his device when he moves himself. It is also possible to adapt the lance to add an additional pipe to dispense an additional jet of liquid or powder if desired.

Les moyens formant commutateur sont adaptés de telle façon que soit l'un, soit les deux liquides puissent être appliqués ensemble ou coupés tous les deux. De préférence, les moyens formant gicleur sont des gicleurs à démontage rapide de sorte qu'ils puissent être aisément et rapidement remplacés si c'est nécessaire ou enlevés pour nettoyage. La poignée de la lance est aussi de préférence réalisée en métal pour éviter qu'elle se fissure ou se brise si elle tombe. De plus, le métal doit être résistant aux liquides qui le traversent. Dans un mode d'zxécution préféré la poignée est un corps rond, réalisé en aluminium et moleté. L'emploi de plastique doit être évité, parce que souvent le plastique gonfle ou se décompose sous l'action des liquides utilisés.The switch means are adapted such that either one or both liquids can be applied together or both cut off. Preferably, the nozzle means are rapid disassembly nozzles so that they can be easily and quickly replaced if necessary or removed for cleaning. The handle of the lance is also preferably made of metal to prevent it from cracking or breaking if it falls. In addition, the metal must be resistant to liquids passing through it. In a preferred embodiment, the handle is a round body, made of aluminum and knurled. The use of plastic should be avoided, because often the plastic swells or breaks down under the action of the liquids used.

L'invention a encore pour objet une lance pour distribuer un liquide sous forme d'un jet pulvérisé humide et un deuxième liquide sous forme d'un jet d'aérosol, caractérisée en ce qu'elle comprend une poignée massive avec trois conduits intérieurs et des moyens individuels de raccordement d'une extrémité avec un tube capillaire, chaque conduit étant pourvu de moyens appropriés pour commander le débit de fluide qui le parcourt, un tube attaché à l'extrémité opposée de la poignée avec des tubes capillaires intérieurs reliés par une extrémité aux conduits de liquide qui le traversent et reliés par l'extrémité opposée à une tête de gicleur attachée à l'extrémité opposée du tube, pourvue de moyens formant gicleur pour distribuer un liquide sous la forme d'un jet pulvérisé humide et de moyens formant gicleur pour distribuer un liquide sous la forme d'un jet d'aérosol, avec l'air comprimé qui le parcourt et se mélange avec le liquide pour former le jet d'aérosol et l'air comprimé qui passe à travers la poignée directement dans le tube pour se mélanger avec le liquide dans les moyens formant gicleur pour le jet d'aérosol.The invention also relates to a lance for dispensing a liquid in the form of a wet spray jet and a second liquid in the form of an aerosol jet, characterized in that it comprises a massive handle with three internal conduits and individual means of connection of one end with a capillary tube, each conduit being provided with suitable means for controlling the flow of fluid which traverses it, a tube attached to the opposite end of the handle with internal capillary tubes connected by a end to the liquid conduits which pass through it and connected by the opposite end to a nozzle head attached to the opposite end of the tube, provided with nozzle means for dispensing a liquid in the form of a wet spray and means forming a nozzle for dispensing a liquid in the form of an aerosol jet, with the compressed air which flows through it and mixes with the liquid to form the jet of aerosol and compressed air which passes through the handle directly into the tube to mix with the liquid in the nozzle means for the aerosol spray.

Diverses modifications peuvent être apportées à l'invention sans sortir de l'esprit ou du cadre de celle-ci, et il va de soi que l'invention ne peut être limitée que parle cadre défini dans les revendications qui suivent.Various modifications can be made to the invention without departing from the spirit or the scope thereof, and it goes without saying that the invention can only be limited by the framework defined in the claims which follow.

Claims (5)

1.- Système de pulvérisation pour distribuer au moins deux compositions liquides, l'une sous forme de jet pulvérisé humide et l'autre sous forme de jet d'aérosol, caractérisé en ce qu'il comprend au moins deux réservoirs d'alimentation en liquide, des moyens pour mettre lesdits réservoirs sous pression, des tubes capillaires individuels raccordant lesdits réservoirs et une source d'air comprimé à une lance de distribution, ladite lance comprenant une poignée massive avec trois conduits intérieurs et des moyens individuels de raccordementd'une extrémité avec l'un des tubes capillaires, chaque conduit étant pourvu de moyens appropriés pour commander le débit de fluide qui le parcourt, un tube attaché à l'extrémité opposée de la poignée avec des tubes capillaires intérieurs reliés par une extrémité aux conduits de liquide qui le traversent et reliés par l'extrémité opposée à une tête de gicleur attachée à l'extrémité opposée du tube, pourvue de moyens formant gicleur pour distribuer un liquide sous la forme d'un jet pulvérisé humide et de moyens formant gicleur pour distribuer un liquide sous la forme d'un jet d'aérosol, avec l'air comprimé qui le parcourt et se mélange avec le liquide pour former le jet d'aérosol et l'air comprimé qui passe à travers la poignée directement dans le tube pour se mélanger avec le liquide dans les moyens formant gicleur pour le jet d'aérosol.1.- Spraying system for dispensing at least two liquid compositions, one in the form of a wet spray and the other in the form of an aerosol spray, characterized in that it comprises at least two supply tanks for liquid, means for pressurizing said tanks, individual capillary tubes connecting said tanks and a source of compressed air to a dispensing lance, said lance comprising a massive handle with three interior conduits and individual means for connecting one end with one of the capillary tubes, each conduit being provided with suitable means for controlling the flow of fluid passing through it, a tube attached to the opposite end of the handle with internal capillary tubes connected at one end to the liquid conduits which cross it and connected by the opposite end to a sprinkler head attached to the opposite end of the tube, provided with hub ns forming a nozzle for dispensing a liquid in the form of a wet spray jet and means forming a nozzle for dispensing a liquid in the form of an aerosol jet, with the compressed air which flows through it and mixes with the liquid to form the aerosol spray and the compressed air which passes through the handle directly into the tube to mix with the liquid in the nozzle means for the aerosol spray. 2.- Système selon la revendication 1, dans lequel les moyens formant gicleur pour distribuer le jet pulvérisé liquide sont disposés au-dessus du gicleur à jet d'aérosol.2. A system according to claim 1, in which the nozzle means for distributing the liquid spray jet are arranged above the aerosol jet nozzle. 3.- Système selon la revendication 1, dans lequel les trois tubes capillaires raccordant la lance aux réservoirs et au compresseur ont un code de couleurs et sont logés dans une gaine de plastique.3.- The system of claim 1, wherein the three capillary tubes connecting the lance to the tanks and the compressor have a color code and are housed in a plastic sheath. 4.- Système selon la revendication 1, dans lequel la poignée est faite d'un corps rond en aluminium, moleté.4.- The system of claim 1, wherein the handle is made of a round aluminum body, knurled. 5.- Lance pour distribuer un liquide sous forme d'un jet pulvérisé humide et un deuxième liquide sous forme d'un jet d'aérosol, caractérisée en ce qu'elle comprend une poignée massive avec trois conduits intérieurs et des moyens individuels de raccordement d'une extrémité avec un tube capillaire, chaque conduit étant pourvu de moyens appropriés pour commander le débit de fluide qui le parcourt, un tube attaché à l'extrémité opposée de la poignée avec des tubes capillaires intérieurs reliés par une extrémité aux conduits de liquide qui le traversent et reliés par l'extrémité opposée à une tête de gicleur attachée à l'extrémité opposée du tube, pourvue de moyens formant gicleur pour distribuer un liquide sous la forme d'un jet pulvérisé humide et de moyens formant gicleur pour distribuer un liquide sous la forme d'un jet d'aérosol, avec l'air comprimé qui le parcourt et se mélange avec le liquide pour former le jet d'aérosol et l'air comprimé qui passe à travers la poignée directement dans le tube pour se mélanger avec le liquide dans les moyens formant gicleur pour le jet d'aérosol.5.- Lance for dispensing a liquid in the form of a wet spray jet and a second liquid in the form of an aerosol jet, characterized in that it comprises a massive handle with three internal conduits and individual connection means from one end with a capillary tube, each conduit being provided with suitable means for controlling the flow of fluid flowing through it, a tube attached to the opposite end of the handle with internal capillary tubes connected at one end to the liquid conduits which pass through it and connected by the opposite end to a nozzle head attached to the opposite end of the tube, provided with nozzle means for dispensing a liquid in the form of a wet spray and nozzle means for dispensing a liquid in the form of an aerosol jet, with the compressed air which flows through it and mixes with the liquid to form the aerosol jet and the compressed air which passes through the handle directly into the tube to mix with the liquid in the spray means for the aerosol spray.
EP91402216A 1990-08-10 1991-08-09 Spraying system Expired - Lifetime EP0470911B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US566164 1990-08-10
US07/566,164 US5152462A (en) 1990-08-10 1990-08-10 Spray system

Publications (3)

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EP0470911A2 true EP0470911A2 (en) 1992-02-12
EP0470911A3 EP0470911A3 (en) 1992-06-17
EP0470911B1 EP0470911B1 (en) 1994-07-27

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ID=24261780

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EP91402216A Expired - Lifetime EP0470911B1 (en) 1990-08-10 1991-08-09 Spraying system

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US (1) US5152462A (en)
EP (1) EP0470911B1 (en)
JP (1) JPH05111648A (en)
AU (1) AU648959B2 (en)
CA (1) CA2048911C (en)
DE (1) DE69103106T2 (en)

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US8132744B2 (en) * 2004-12-13 2012-03-13 Optomec, Inc. Miniature aerosol jet and aerosol jet array
US9607889B2 (en) 2004-12-13 2017-03-28 Optomec, Inc. Forming structures using aerosol jet® deposition
US10632746B2 (en) 2017-11-13 2020-04-28 Optomec, Inc. Shuttering of aerosol streams
US10994473B2 (en) 2015-02-10 2021-05-04 Optomec, Inc. Fabrication of three dimensional structures by in-flight curing of aerosols

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EP0578934A1 (en) * 1992-07-13 1994-01-19 Edmar Link Device for treating work pieces with pressurized fluid
DE4223006A1 (en) * 1992-07-13 1994-01-20 Edmar Link Device for treating workpieces with a pressure fluid
DE4223006C2 (en) * 1992-07-13 2000-01-20 Edmar Link Device for treating workpieces with a pressure fluid
US8132744B2 (en) * 2004-12-13 2012-03-13 Optomec, Inc. Miniature aerosol jet and aerosol jet array
US9607889B2 (en) 2004-12-13 2017-03-28 Optomec, Inc. Forming structures using aerosol jet® deposition
US10994473B2 (en) 2015-02-10 2021-05-04 Optomec, Inc. Fabrication of three dimensional structures by in-flight curing of aerosols
US10632746B2 (en) 2017-11-13 2020-04-28 Optomec, Inc. Shuttering of aerosol streams
US10850510B2 (en) 2017-11-13 2020-12-01 Optomec, Inc. Shuttering of aerosol streams

Also Published As

Publication number Publication date
EP0470911A3 (en) 1992-06-17
DE69103106T2 (en) 1994-11-17
AU8137391A (en) 1992-02-13
US5152462A (en) 1992-10-06
JPH05111648A (en) 1993-05-07
AU648959B2 (en) 1994-05-05
DE69103106D1 (en) 1994-09-01
CA2048911C (en) 2000-10-24
CA2048911A1 (en) 1992-02-11
EP0470911B1 (en) 1994-07-27

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