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WO1991008839A1 - Systeme de pulverisation a volume eleve et basse pression - Google Patents

Systeme de pulverisation a volume eleve et basse pression Download PDF

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Publication number
WO1991008839A1
WO1991008839A1 PCT/US1990/007212 US9007212W WO9108839A1 WO 1991008839 A1 WO1991008839 A1 WO 1991008839A1 US 9007212 W US9007212 W US 9007212W WO 9108839 A1 WO9108839 A1 WO 9108839A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
induction
ambient air
atomizer
low pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US1990/007212
Other languages
English (en)
Inventor
William C. Smith
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/450,474 external-priority patent/US4991776A/en
Priority claimed from US07/605,365 external-priority patent/US5044557A/en
Priority claimed from US07/606,321 external-priority patent/US5058807A/en
Application filed by Individual filed Critical Individual
Publication of WO1991008839A1 publication Critical patent/WO1991008839A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • 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
    • B05B7/0081—Apparatus supplied with low pressure gas, e.g. "hvlp"-guns; air supplied by a fan
    • 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
    • B05B7/0081—Apparatus supplied with low pressure gas, e.g. "hvlp"-guns; air supplied by a fan
    • B05B7/0087—Atmospheric air being sucked by a gas stream, generally flowing through a venturi, at a location upstream or inside the spraying apparatus
    • 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
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2402—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device
    • B05B7/2405—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle
    • B05B7/2416—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising containers fixed to the discharge device using an atomising fluid as carrying fluid for feeding, e.g. by suction or pressure, a carried liquid from the container to the nozzle characterised by the means for producing or supplying the atomising fluid, e.g. air hoses, air pumps, gas containers, compressors, fans, ventilators, their drives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2486—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device with means for supplying liquid or other fluent material to several discharge devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/24—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device
    • B05B7/2489—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device
    • B05B7/2494—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with means, e.g. a container, for supplying liquid or other fluent material to a discharge device an atomising fluid, e.g. a gas, being supplied to the discharge device a liquid being supplied from a pressurized or compressible container to the discharge device

Definitions

  • This invention relates generally to the atomization of fluids and more particularly to the high volume, low pressure atomization and entrainment of liquids, such as paint, for application to a surface.
  • overspray a wasteful cloud of fluid and air commonly referred to as "overspray".
  • the solvent vapors become part of the atmosphere and present a hazard not only to the environment and user, but also to the atomizing equipment.
  • the visible components of overspray comprise solids entrapped in the vapor which results not only in the degrading of the quality of the work surface, but also in the contamination of the work site.
  • High pressure, airless systems also generate a type of overspray referred to as "bounceback". This condition is created by the high velocity by which the fluid is propelled to the surface.
  • the rebounding particles, solids and vapors form a cloud similar to the overspray generated by pneumatic apparatus. Both types of systems, however, produce the same undesirable results.
  • the gun is designed to atomize fluids by the violent forward motion of the air as its exits the nozzle. Because the air nozzle is considerably larger than the fluid nozzle, it delivers more air than is necessary. The explosion into the atmosphere results in overspray. Thus, there is a direct relationship between overspray and high pressure.
  • a high volume, low pressure system for atomizing a fluid for atomizing a fluid, such as paint
  • a variable jet venturi induction pump located within a sealed air tank for holding a relatively large volume of low pressure air generated by the induction pump and including a plurality of atomizing air outlets which are adapted to couple to and feed low pressure air to a respective plurality of individual atomizing devices, such as spray guns, with the tank being located a predetermined distance away from the atomizing devices so that overspray produced thereby is prevented from being fed into the induction pump along with compressed air from a source of compressed air.
  • the induction pump moreover, is attached to the walls of a sealed chamber within the tank which draws in and delivers filtered ambient air to an induction port of the pump for feeding ambient air from a normally closed spring biased inlet valve to a venturi section of the pump, which then provides relatively low pressure air which is then stored in the air tank.
  • the spring biased inlet valve of the air induction chamber is opened by a drop in back pressure in the sealed air tank upon activation of an atomizing device coupled to the air tank and which itself also includes a normally closed spring biased valve but which is manually opened, for example, when atomization is desired.
  • means are provided, to automatically start and stop the flow of compressed air to the induction pump in response to internal pressure within the sealed chamber in the air tank.
  • Figure 1 is a mechanical schematic diagram generally illustrative of the preferred embodiment of the invention.
  • Figure 2 is a mechanical schematic diagram of a modified embodiment of the invention shown in Figure 1;
  • Figure 3 is a side elevational view partially in section of a jet venturi induction pump and ambient air intake chamber therefor mounted within the low pressure air tank shown in Figures 1 and 2;
  • Figure 4 is a partial longitudinal cross sectional view of a handle of a spray gun shown in Figures 1 and 2 and including the details of a low pressure air intake valve therefor;
  • Figure 5 is a side elevational view partially in section of a modified form of the tank shown in Figure 1 including means for controlling the flow of compressed air from the air compressor shown in Figures 1 and 2;
  • Figure 6 is a side elevational view partially in section and being illustrative of a modification of the ambient air intake assembly for providing a compressor driven turbo powered input of ambient air to the jet venturi induction pump shown in Figure 3;
  • Figure 7 is a side elevational view partially in section and being illustrative of a modification of the invention where booster air is also utilized; and Figure 8 is a side elevational view partly in section and being illustrative of another modification of the invention where booster air is utilized.
  • FIG. 1 where reference numeral 10 denotes a relatively large sealed tank for storing low pressure air generated therein as will be hereinafter explained.
  • the tank as shown is comprised of an elongated generally cylindrical body 12 having end portions 14 and 16.
  • a filtered ambient air intake assembly 18 including an air filter is attached to an air induction assembly 20 integral with the tank 10 and coupled to an induction port of a variable jet venturi induction pump located interiorally of the tank body 12, the details of which are shown, for example, in Figure 3, and which will be subsequently described.
  • a source of compressed air comprising a self starting and shut-off air compressor 22 comprised of, for example, a Model LT 5008 manufactured by the Campbell-Haysfeld Co. and storage tank 24, is coupled to a pressure regulator 26 via an air hose 28 or other form of conduit.
  • the function of the pressure regulator 26 is to provide the proper air pressure required by the venturi induction pump inside of the tank 10 and to cause the compressor 22 to shut down when compressed air is not required.
  • An indicator 30 is provided to permit the user to adjust the pressure of the compressed air entering the tank 12 via the coupling 32 and which is adjustable by the manually operable knob 34.
  • the pressure regulator 26 is shown also including an air filter 36 attached thereto which is used to decontaminate the compressed air generated from moisture, oil, rust and dirt. When desirable, the filter 36 can be separate from the regulator 26.
  • a hose coupling manifold 38 having a plurality of quick disconnect connectors 40 for selectively connecting one or more low pressure output air hoses or other flexible conduits thereto.
  • a plurality of air hoses 42,, 42 2 , 42 3 and 42 n have manually operable shut-off valves 44,, 44 2 , 44,, 44 located at their far or distal ends.
  • the air hoses also include means shown in Figure 4 for coupling to respective atomizing devices 46,,, 46 2 , 46 3 , ... 46 n , typically comprising manually operable spray guns connected to a source of fluid or liquid to be atomized and which, for example, may be paint.
  • two of the paint spray guns 46, and 46 2 are connected to respective paint containing pressure cups 48, and 48 2 , while the remaining paint spray guns 46 3 and 46 n are coupled to a common source of paint consisting of a pressure pot 50 and which connects to the paint spray guns via paint supply hoses 52 3 and 52 n .
  • each of the paint spray guns 46,, 46 2 , 46 3 , ... 46 n include a self- contained trigger operated air feed valve 54,, 54 2 , 54 3 ... 54 n , which are located in the respective handle portions to the gun and which connect to the connector elements, shown in Figure 4, for coupling to the low pressure feed hoses 42,, 42 2 , 42 3 , ... 42 n .
  • the details of one of the valves 54, for example, are shown in Figure 4 and will be discussed subsequently.
  • FIG 2 shown thereat is a modification of the system shown in Figure 1 in that the apparatus including the low pressure tank 10, the regulator 26 and its associated components as well as the air compressor 24 and storage tank 22 therefor are all mounted on a wheeled vehicle, such as a cart, 58 so that the entire assembly for OOfeeding high volume, low pressure air to a plurality of paint spray guns 46,, 46 2 , ... 46 n , for example, can be quickly and easily moved from place to place upon demand, whereas the configuration shown in Figure 1, for example, could be a substantially stationary installation where the low pressure storage tank 10 is located remotely from the work station and out of range of a region where overspray may be present. It is the primary objective of both embodiments to remove the ambient air intake which is shown constituting the filter 18, from the immediate vicinity of the spray gun(s) .
  • FIG. 3 shown thereat are the details of the interior of the source of high volume, low pressure air including the sealed tank 10 shown in Figures 1 and 2.
  • the induction pump 60 comprises a venturi intake nozzle member 62, a throat section member 64 attached to the nozzle 62.
  • the section 64 also includes one or more induction ports 66 and a curved induction passage 67 which are located adjacent the output end 68 of the nozzle 62.
  • the input end 70 of the nozzle 62 is threaded and is attached to a coupling member 72 which attaches to the threaded end of a compressed air output tube 32 from the regulator 26.
  • Both the nozzle 62 and the venturi section 64 of the induction pump assembly 60 are attached to a pair of opposing vertical walls 74 and 76 of a sealed ambient air induction chamber 78.
  • the output end 80 of the venturi section 64 is flared outward and is called the pressure recovery section.
  • Screw threads 63 on the nozzle portion 65 permit adjustability and provide a means for varying the position of the nozzle end 68 in the induction passage 67 for adjusting the induction pump assembly 60 for various different viscosities.
  • compressor air from the regulator 26 converges at the output end 68 of the venturi nozzle 62, causing a high velocity output of compressed air to occur, creating a low pressure zone at the induction ports 66.
  • the ambient air mixes with the low pressure compressed air in the downstream section 82 of the throat section 64 where it is delivered at a pressure ranging from 6 to 8 psi into the interior portion 84 of the tank 10 as defined by the dimensions of the tank body 12.
  • This provides a relatively large volume of low pressure air which can be accessed via the manifold 38 and the couplers 40, ... 40 n , to which air lines 42, ... 42 n can be attached as required as shown in Figures 1 and 2.
  • a pressure relief poppet valve 86 is also included on the tank housing 12 for safety purposes along with a petcock 88 for removing contaminants therefrom.
  • the ambient air intake assembly 20 including the sealed chamber 78 and the ambient air intake filter 18 additionally includes a spring biased ball valve 90 which is urged against a valve seat structure 92 by means of a compression spring 94 which contacts the surface of a member 96, which includes a plurality of ambient air delivery ports 98 as well as providing a mounting structure for a support rod 100, upon which the ball valve 90 may freely slide downwardly and upwardly between open and closed positions on the valve seat 92.
  • FIG. 4 Before considering the operation of the apparatus shown in Figure 3, reference will first be made to Figure 4 inasmuch as the operation of the ball valve 90 operates in concert with any one of air inlet control valves 54, ... 54 n located in the handles of paint spray guns 46, ... 46 n as shown in Figures 1 and 2.
  • Figure 4 there is depicted the handle 56, of the paint spray gun 46, and the details of the control valve 54, therein.
  • valve body 102 is mechanically coupled to an elongated valve stem 102 connected at one end to a plunger type valve member 104 which is biased into a normally closed position on the valve seat structure 106 by a compression spring 108 located externally of the valve housing 110 which fits inside of the spray gun handle 56, and is held in position, for example, by a retaining screw 112.
  • the valve body includes a plurality of air outlet ports 114 at the head of the assembly, with the valve rod being stabilized by a pair of internal support members 116 and 118.
  • FIG. 4 also discloses a quick disconnect coupler 122 for connecting the spray gun 46 to the low pressure air feed hose 42, which also includes a manual cut off valve 44,, and which is normally closed to prevent the escape of low pressure air from the hose 42, when unconnected from the paint spray gun or when the paint spray gun 46, is not in use while being connected thereto.
  • both the ball valve 90 ( Figure 3) and the valve 104 ( Figure 4) will normally be biased closed by their respective bias springs 94 and 108 and no ambient air will be fed to the induction pump 60 via the air induction assembly 20 nor will any low pressure air be fed from the tank 10 to the atomizer portion of the paint spray gun 46,. Since the air compressor 24 is of the automatic shut- off type, compressed air fed from the air compressor 24 to the nozzle 62 of the venturi pump 60 will also stop.
  • triggering of the paint spray gun 46 causes the valve 104 in the handle to open, which results in the back pressure in the tank 10 being reduced. This enables the ball valve 90 to open against the pressure of the spring 94 and compressed air will be fed to the nozzle 62 due to the action of the regulator 26 on the compressor 22.
  • the valve 104 Upon release of the triggering mechanism 47, in the spray gun 46, the valve 104 returns to its closed position and the back pressure in the tank again increases to force the ball valve 90 against its valve seat 92, thus preventing any further ambient air from being fed to intake ports 66 of the induction pump 60. This also causes the regulator 26 to signal the air compressor 24 to stop pumping air.
  • a pressure sensor device 75 is mounted in the wall 74 of the chamber 78.
  • the sensor 75 is in the form of a pressure repeater which opens and closes a pressure output port 77 depending upon whether or not the sensed pressure sensed at the input port 79 is above or below an adjustable reference pressure applied to a second input port 81.
  • a pressure repeater is a well known device, a typical example being Model Number 1043 Pressure Repeater, manufactured by the Clippard Instrument Laboratory, Inc.
  • the reference pressure input port 81 is coupled via tube 83 to an adjustable miniature pressure regulator 85.
  • the miniature pressure regulator is coupled to the pressure sensed by the indicator 30 for providing a visual indication of the value of compressed air to be used as the reference pressure applied to the sensor 75.
  • the sensed pressure input port 79 is in communication with the interior of the ambient air inlet chamber 78.
  • the output port 77 is coupled via tube 87 to a pilot actuator 89 which controls a valve 91 connected in the compressed air line 28 upstream from the regulator 26. Accordingly, the valve 91 operates to enable or inhibit flow of compressed air from the compressor 22 and the tank 24 as shown, for example, in Figure 1 to the venturi nozzle 62 in response to the internal pressure in the ambient air intake chamber 78.
  • a turbo fan 17 for example, is located in the ambient air intake housing 18.
  • a turbo fan 17 is located within the housing 18 which previously included the air filter 19 as shown in Figure 3 and is powered by compressed air from the compressor 22 by means of an air hose or conduit 29 coupled to the compressed air feed hose 28.
  • the air delivered to the venturi induction pump 60 is still filtered prior to the location of the ball valve 90 and comprises mounting an air filter 19' at the top portion of the ambient air input assembly 20.
  • substantially more air can be fed to the induction port 66 of the venturi induction pump 60 when the ball valve 90 is moved to the open position, thus increasing the usable volume of low pressure air by the spray guns 46, ... 46 n .
  • the embodiments shown in Figures 7 and 8 disclose a solution to this problem by including a booster system which augments or supplements i.e. adds to the atomizing air produced by the jet venturi induction pump 60 secured to the walls 74 and 76 of the sealed ambient air induction chamber 78.
  • a booster system which augments or supplements i.e. adds to the atomizing air produced by the jet venturi induction pump 60 secured to the walls 74 and 76 of the sealed ambient air induction chamber 78.
  • This is provided by an additional supply of regulated low pressure air, i.e. less than 10 psi, which is introduced into the atomizing air hose feed between the output end of the induction pump 60 and a particular atomizing device 46..
  • Branch line 27 is coupled to the regulator 26, as before, whose output is connected to the air coupler section 32 which feeds regulated air to the induction pump 60.
  • a second regulator 26' is utilized and is coupled to the air feed line 27'.
  • the regulator 26' includes an indicator 30' to permit the user to adjust the pressure of the additional compressed air fed to a booster line 35 which is shown in Figure 7 running outside of the sealed tank 10 and connecting to one arm of a Y or T coupler member 45 connected into the air hose 42 n , for example, which is connected to a respective atomizing device 46 n , as shown in Figures 1 and 2.
  • FIG 8 shown thereat is an embodiment where the air chamber 10 is deleted in favor of an unsealed enclosure 11 which in addition to providing a support for the two pressure regulators 26 and 26', also acts as a protective housing for the sealed ambient air inlet chamber 78 and the induction pump 60.
  • a single output coupler 47 couples the venturi section 64 of the induction pump assembly 60 to an output connector 49.
  • the output connector 49 couples to a single feedline 42 in which there is inserted, downstream of the induction pump 60, the Y or T-coupler 45 as shown in Figure 7.
  • the booster line 35 from the pressure regulator 26' runs inside of the enclosure 11 where it connects to an output connector 51.
  • the connector 51 is connected to an additional booster line 53 for connecting to the coupler 45, thus operating to feed boosted air to an atomizing device 46, not shown.
  • a variable jet venturi induction pump utilized to generate low pressure air for powering the atomizers e.g. paint spray guns
  • a variable jet venturi induction pump utilized to generate low pressure air for powering the atomizers is located apart from and at a predetermined distance away from the paint spray gun(s) so that overspray produced thereby is prevented from being fed into the induction pump along with compressed air from a compressed air source.

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  • Nozzles (AREA)

Abstract

Un système pneumatique à volume élevé et basse pression pour pulvériser un liquide, par exemple, de la peinture, comprend, entre autres, une pompe à induction à jet venturi variable (60) reposant sur une chambre à induction fermée (74) possédant une soupape d'aspiration (90) montée sur ressort (94). La pompe à induction à jet venturi (60) produit de l'air à basse pression pour actionner un ou plusieurs dispositifs de pulvérisation, tels que des pistolets vaporisateurs (461-46n), l'aspiration (18) de la pompe à induction étant située à une distance prédéterminée loin des dispositifs de pulvérisation (461-46n) de façon que le nuage produit par la pulvérisation ne puisse pas pénétrer dans la pompe à induction avec l'air ambiant. Selon l'une des formes d'exécution, la pompe à induction (60) et la chambre à induction sont placées `a l'intérieur d'une chambre de mélange d'air (10). Le système commande également l'alimentation en air comprimé par l'intermédiaire d'un régulateur de pression (26) et, si on le souhaite, peut s'équiper d'un ventilateur d'aspiration actionné par air comprimé (17) agissant en turbo-compresseur de l'air ambiant fourni à la pompe à induction à jet venturi. Une source de suralimentation régulée (26') d'air à basse pression régulé est également couplée à la(aux) conduite(s) d'alimentation (42) alimentant le(s) dispositif(s) de pulvérisation individuel(s) pour augmenter l'air à basse pression produit par la pompe à induction à jet venturi (60) dans certaines applications de pulvérisation.
PCT/US1990/007212 1989-12-14 1990-12-13 Systeme de pulverisation a volume eleve et basse pression Ceased WO1991008839A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US605,365 1984-04-30
US07/450,474 US4991776A (en) 1989-12-14 1989-12-14 High volume, low pressure spraying system
US450,474 1989-12-14
US07/605,365 US5044557A (en) 1989-12-14 1990-10-30 High volume, low pressure spraying system
US606,321 1990-10-31
US07/606,321 US5058807A (en) 1989-12-14 1990-10-31 High volume, low pressure spraying system

Publications (1)

Publication Number Publication Date
WO1991008839A1 true WO1991008839A1 (fr) 1991-06-27

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Application Number Title Priority Date Filing Date
PCT/US1990/007212 Ceased WO1991008839A1 (fr) 1989-12-14 1990-12-13 Systeme de pulverisation a volume eleve et basse pression

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0771571A1 (fr) * 1995-10-31 1997-05-07 SANYO ELECTRIC Co., Ltd. Système atomiseur comprenant un dispositif d'apport de pression et des unitées pulvérisatrices
EP2105207A1 (fr) * 2008-03-29 2009-09-30 EISENMANN Anlagenbau GmbH & Co. KG Récipient pour produits pulvérulents, dispositif de transport de produits pulvérulents et procédé d'exploitation de celui-ci

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266365A (en) * 1939-03-06 1941-12-16 Binks Mfg Co Automatically operated spraying system
US3282227A (en) * 1964-06-22 1966-11-01 Nielsen Mfg Co Adjustable venturi injector
US3796376A (en) * 1972-07-28 1974-03-12 Irmgard Farnsteiner Spray gun
US4850809A (en) * 1988-04-14 1989-07-25 Smith William C Air operated low pressure spraying system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2266365A (en) * 1939-03-06 1941-12-16 Binks Mfg Co Automatically operated spraying system
US3282227A (en) * 1964-06-22 1966-11-01 Nielsen Mfg Co Adjustable venturi injector
US3796376A (en) * 1972-07-28 1974-03-12 Irmgard Farnsteiner Spray gun
US4850809A (en) * 1988-04-14 1989-07-25 Smith William C Air operated low pressure spraying system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0771571A1 (fr) * 1995-10-31 1997-05-07 SANYO ELECTRIC Co., Ltd. Système atomiseur comprenant un dispositif d'apport de pression et des unitées pulvérisatrices
US5699786A (en) * 1995-10-31 1997-12-23 Sanyo Electric Co., Ltd. Atomizer system
EP2105207A1 (fr) * 2008-03-29 2009-09-30 EISENMANN Anlagenbau GmbH & Co. KG Récipient pour produits pulvérulents, dispositif de transport de produits pulvérulents et procédé d'exploitation de celui-ci

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