EP0470911A2 - Zerstäubungssystem - Google Patents

Zerstäubungssystem 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
Authority
EP
European Patent Office
Prior art keywords
liquid
nozzle
tube
aerosol
dispensing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91402216A
Other languages
English (en)
French (fr)
Other versions
EP0470911A3 (en
EP0470911B1 (de
Inventor
William Edward Evans
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanofi Aventis France
Original Assignee
Roussel Uclaf SA
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 Roussel Uclaf SA filed Critical Roussel Uclaf SA
Publication of EP0470911A2 publication Critical patent/EP0470911A2/de
Publication of EP0470911A3 publication Critical patent/EP0470911A3/fr
Application granted granted Critical
Publication of EP0470911B1 publication Critical patent/EP0470911B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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.

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  • Nozzles (AREA)
  • Catching Or Destruction (AREA)
EP91402216A 1990-08-10 1991-08-09 Zerstäubungssystem Expired - Lifetime EP0470911B1 (de)

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)

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

Family

ID=24261780

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91402216A Expired - Lifetime EP0470911B1 (de) 1990-08-10 1991-08-09 Zerstäubungssystem

Country Status (6)

Country Link
US (1) US5152462A (de)
EP (1) EP0470911B1 (de)
JP (1) JPH05111648A (de)
AU (1) AU648959B2 (de)
CA (1) CA2048911C (de)
DE (1) DE69103106T2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578934A1 (de) * 1992-07-13 1994-01-19 Edmar Link Vorrichtung zum Behandeln von Werkstücken mit einem Druckfluid
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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US7045015B2 (en) 1998-09-30 2006-05-16 Optomec Design Company Apparatuses and method for maskless mesoscale material deposition
US7938079B2 (en) 1998-09-30 2011-05-10 Optomec Design Company Annular aerosol jet deposition using an extended nozzle
US8110247B2 (en) 1998-09-30 2012-02-07 Optomec Design Company Laser processing for heat-sensitive mesoscale deposition of oxygen-sensitive materials
US7108894B2 (en) 1998-09-30 2006-09-19 Optomec Design Company Direct Write™ System
US6964685B2 (en) 1999-06-22 2005-11-15 The Brigham And Women's Hospital, Inc. Biologic replacement for fibrin clot
US6347752B1 (en) 1999-11-12 2002-02-19 James W. Davidson Foam spray gun nozzle extension assembly
US6267300B1 (en) * 1999-12-09 2001-07-31 The Boeing Company Spray back fluid applicator
US8469295B2 (en) * 2002-02-15 2013-06-25 Implant Sciences Corporation Trace chemical particle release nozzle
US20050045747A1 (en) * 2002-08-23 2005-03-03 Hennigan Engineering Company, Inc. Method and apparatus for high pressure water jet lancing of foreign materials from surfaces of a nuclear power reactor
US7156919B2 (en) * 2004-12-21 2007-01-02 Spectra Chrome, Llc Portable metallizing spray booth
CA2597387A1 (en) * 2005-02-09 2006-08-17 Children's Medical Center Corporation Device for mixing and delivering fluids for tissue repair
DE102005032983B4 (de) * 2005-07-14 2007-05-31 MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. Düsenanordnung
EP1981435A2 (de) 2006-01-25 2008-10-22 Children's Medical Center Corporation Verfahren und vorgehensweisen zur bänderreparatur
EP4162936A1 (de) 2006-09-28 2023-04-12 The Children's Medical Center Corporation Methoden und kollagenprodukte zur gewebereparatur
TWI482662B (zh) 2007-08-30 2015-05-01 Optomec Inc 機械上一體式及緊密式耦合之列印頭以及噴霧源
TWI538737B (zh) 2007-08-31 2016-06-21 阿普托麥克股份有限公司 材料沉積總成
US8887658B2 (en) 2007-10-09 2014-11-18 Optomec, Inc. Multiple sheath multiple capillary aerosol jet
EP2809340B1 (de) 2012-02-01 2021-11-24 Children's Medical Center Corporation Biomaterial zur gelenkknorpelpflege und behandlung von arthritis
KR101287033B1 (ko) 2013-01-11 2013-07-17 (주)대흥산업방역공사 약품발사대
EP3798226A1 (de) 2013-02-01 2021-03-31 Children's Medical Center Corporation Collagengerüste
US20170348903A1 (en) * 2015-02-10 2017-12-07 Optomec, Inc. Fabrication of Three-Dimensional Materials Gradient Structures by In-Flight Curing of Aerosols
US11124159B2 (en) * 2016-11-22 2021-09-21 Toledo Molding & Die, Llc Washer fluid vehicle reservoir
CN108935412B (zh) * 2018-08-17 2023-06-20 华南农业大学 集成在果茶园电动双轨运输机的风送喷雾装置及喷雾方法
CN112024153B (zh) * 2020-09-18 2024-08-02 北京瑞奎德工业技术有限公司 一种可扩展式气液混喷器及气液混喷系统

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1728756A (en) * 1924-03-31 1929-09-17 Hansen Mfg Co Fluid-pressure spraying device
US3623669A (en) * 1969-07-10 1971-11-30 Billy L Woods Spray gun
JPS58204334A (ja) * 1982-05-24 1983-11-29 Oshitari Kenkyusho:Kk エアロゾル発生方法並に装置
US4865255A (en) * 1987-12-03 1989-09-12 Luvisotto Roy G Self-contained, mobile spraying apparatus

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US2062097A (en) * 1933-04-20 1936-11-24 Gen Electric Washing apparatus
US2868584A (en) * 1954-06-28 1959-01-13 Norgren Co C A Spray system
US3144967A (en) * 1961-01-27 1964-08-18 Marshall A Mcclain Dispensing device
US3375823A (en) * 1964-09-29 1968-04-02 James B. Pamplin Dental syringe for selectively discharging dry air, water or spray
US3799451A (en) * 1972-12-13 1974-03-26 K Kollmai Fluid flow wand assembly
US4621770A (en) * 1981-12-14 1986-11-11 Sayen Michael D Plant watering/misting device
US5082185A (en) * 1990-10-02 1992-01-21 Roussel Uclaf Spray wand without liquid leakage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1728756A (en) * 1924-03-31 1929-09-17 Hansen Mfg Co Fluid-pressure spraying device
US3623669A (en) * 1969-07-10 1971-11-30 Billy L Woods Spray gun
JPS58204334A (ja) * 1982-05-24 1983-11-29 Oshitari Kenkyusho:Kk エアロゾル発生方法並に装置
US4865255A (en) * 1987-12-03 1989-09-12 Luvisotto Roy G Self-contained, mobile spraying apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 55 (P-260)(1492) 13 Mars 1984 ( OSHITARI KENKYUSHO KK ) 29 Novembre 1983 & JP-A-58 204 334 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0578934A1 (de) * 1992-07-13 1994-01-19 Edmar Link Vorrichtung zum Behandeln von Werkstücken mit einem Druckfluid
DE4223006A1 (de) * 1992-07-13 1994-01-20 Edmar Link Vorrichtung zum Behandeln von Werkstücken mit einem Druckfluid
DE4223006C2 (de) * 1992-07-13 2000-01-20 Edmar Link Vorrichtung zum Behandeln von Werkstücken mit einem Druckfluid
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
DE69103106D1 (de) 1994-09-01
AU8137391A (en) 1992-02-13
AU648959B2 (en) 1994-05-05
EP0470911A3 (en) 1992-06-17
EP0470911B1 (de) 1994-07-27
JPH05111648A (ja) 1993-05-07
CA2048911C (fr) 2000-10-24
DE69103106T2 (de) 1994-11-17
US5152462A (en) 1992-10-06
CA2048911A1 (fr) 1992-02-11

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