US3693882A - Device for spraying liquid - Google Patents

Device for spraying liquid Download PDF

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Publication number
US3693882A
US3693882A US886296A US3693882DA US3693882A US 3693882 A US3693882 A US 3693882A US 886296 A US886296 A US 886296A US 3693882D A US3693882D A US 3693882DA US 3693882 A US3693882 A US 3693882A
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United States
Prior art keywords
liquid
air
slits
circular
slit
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Expired - Lifetime
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US886296A
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English (en)
Inventor
Tamotsu Watanabe
Yasuo Vando
Kozaburo Tsurugi
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Nippon Kogei Kogyo Co Ltd
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Nippon Kogei Kogyo Co Ltd
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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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
    • 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
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet
    • B05B7/065—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with only one liquid outlet and at least one gas outlet an inner gas outlet being surrounded by an annular adjacent liquid outlet

Definitions

  • This invention relates to a method and apparatus for spraying a liquid such that the cross-sectional shape of the spray is substantially in the form of a flattened ellipsoid.
  • the spray stream In order to spray coat a liquid evenly and efficiently onto an article, it has been found desirable that the spray stream have a generally elliptical cross-sectional configuration.
  • This elliptical pattern should be well defined and should be free of any over-spray which might be caused by particles blown from the spray stream by jets of air used in forming the desired shape of the spray.
  • the liquid particles forming the spray stream should be so finely divided that spattering of the liquid on the surface being coated is prevented.
  • the spray should also be evenly discharged from the spraying apparatus so that no portion of the pattern becomes so thin as to leave streaks,'nor so heavy as to cause a rippled appearance in the finished product. It is therefore imperative that the spray stream be properly shaped and consist of a substantially homogeneous pattern of finely divided particles.
  • the air pressure and accordingly, the air consumption rate should be kept at a minimum so that the parts or components of the equipment, including the compressor, the dehumidifier, and the oil and dust filters can be kept at a minimum size.
  • the force or energy of the spray should be kept at a minimum so as to minimize the degree of spattering of the liquid and to minimize the degree of over-spraying of the surrounding'surfaces and surrounding work areas. Another advantage of minimizing the force or energy of the spray is to permit the accumulation of an electrostatic charge on the spray particles, thereby obtaining better adhesion due to Coulombs forces.
  • a liquid such as paint
  • a method of spraying liquid in an elliptical pattern by injecting air in tangentially opposed directions at diametrically opposed positions to a tulipshaped spray having a circular cross-section.
  • apparatus for spraying liquid such as paint
  • a spray head portion formed with a circular, elliptical or polygonal air slit for injecting compressed air and a circular, elliptical, or polygonal liquid slit disposed adjacent to and around the circular air slit for atomizing the liquid, and one or more pairs of air jets disposed outside of the slits and in opposed positions with respect to the center of the slits for injecting compressed air in an inward and tangential direction to the spray stream so as to elongate the cross-section of the spray stream to a substantially flattened ellipsoidal shape.
  • FIG. 1 is a longitudinal partial sectional view of a conventional spray head portion of a spray gun and associated equipment shown in schematic form;
  • FIG. 2 is an end view of the spray head portion shown in FIG..1;
  • FIG. 3a is a cross-sectional view of preferred spray streams from a spray gun
  • FIG. 3b is a schematic graph showing the relationship between the length and thickness of a preferred spray stream of liquid
  • FIG. 4 is a sectional view of a conventional spray stream from a spray gun
  • FIG. 5 is a schematic graph showing the relationship between the diameter and thickness of the spray stream shown in FIG. 4;
  • FIG. 6 is a sectional view of a spray stream in which the center portion thereof is starved of liquid particles
  • FIG. 7 is a schematic graph showing the relationship between the diameter and thickness of the spray stream shown in FIG. 6;
  • FIG. 8 is a cross-sectional view of a spray head portion used in the spray gun constructed in accordance with the present invention.
  • FIG. 9 is an end plan view of a spray head portion constructed according to the present invention.
  • FIG. 10 is a front view of the spray head portion shown in FIG. 9;
  • FIG. 11 is a side view of the spray head portion shown in FIG. 9;
  • FIG. 12 is a perspective view of the spray head portion shown in FIG. 9; 7
  • FIG. 13 is a plan view similar to FIG. 9, butshowing another embodiment of the present invention.
  • FIG. 14 is a front view similar to FIG. 10, but showing the embodiment of FIG. 13;
  • FIG. 15 is a side view similar to FIG. 11, but showing the embodiment of FIG. 13;
  • FIG. 16 is a perspective view similar to FIG. 12, but showing the embodiment of FIG. 13;
  • FIG. 17 is a longitudinal partial sectional view of one example of a spray gun used with the spray head portion constructed in accordance with the present inventron.
  • the sprayv head portion of a conventional spray gun will hereinafter be described with reference to FIGS. 1 and 2, wherein the conventional spray gun generally comprises a spray head having a small liquid outlet aperture 1 disposed in the center of the spray head for discharging a liquid from a liquid supply source 5.
  • a circular air aperture 2 is generally disposed adjacent to and concentric with the liquid outlet aperture 1 for emitting compressed air from a compressed air source 4, and atomizing the liquid into finely-divided particles.
  • One or more pairs of air jet apertures 3 are disposed adjacent to the liquid outlet aperture 1 beyond the perimeter of the circular air aperture 2 and directed radially toward the liquid outlet aperture 1. The air jet apertures 3 emit a compressed air stream into the liquid ejected from outlet aperture 1 to cause the resulting liquid stream to take on the generally ellipsoidal configuration as shown in FIG. 3a.
  • the spray stream of the atomized liquid particles from the liquid outlet aperture 1 and circular air aperture 2 takes on the configuration of an ellipsoid having a flattened cross-section.
  • a spray head portion as illustrated in FIG. 8 has been proposed so as to atomize the liquid and to outwardly expand the atomized liquid particles and generally comprises a cylindrical hollow air chamber 10 axially formed in the spray head portion and opened at one end of the spray head portion with an air stream expanding element 7 inserted into the hollow chamber 10 for forming a circular air slit 8 for expandingly spraying the liquid by injecting compressed air, thus forming the liquid particles in a conical or tulip-shaped spray with a circular liquid slit 6 disposed adjacent to and around the circular air slit 8 for atomizing the liquid.
  • FIG. 8 One problem with the apparatus disclosed in FIG.
  • either the article can be moved while the sprayer remains fixed, or the sprayer may be moved while the article remains fixed.
  • the spray of atomized liquid particles has a circular cross-section, as shown in FIG. 4, the thickness of the coating will be unevenly varied over the surface, as shown in FIG. 5.
  • the amount of liquid sprayed per unit time from the spray head illustrated in FIG. 8 may be increased by rotatably mounting the spray head onto the spray gun so as to be rotatable about the central axis of the gun. Rotation can be provided by use of a drive shaft attached to the spray head portion.
  • FIGS. 9 through 12 illustrate one embodiment of a spray head portion of a spray gun constructed in accordance with the present invention, wherein the spray head portion comprises essentially the same structure as illustrated in FIG. 8 including an air stream expanding element 7 inserted into a hollow chamber (not shown) for forming a circular air slit 8 which expands the liquid spray by injecting compressed air so as to form the liquid particles into a conical shape, and a circular liquid slit disposed adjacent to and around the circular air slit for atomizing the liquid.
  • a pair of air jet holes 9 are disposed outwardly of the air and liquid slits 8 and 6, and in opposed positions with respect to the center of the slits for injecting air jet streams in inward and tangential directions of the sectional circle of the sprayed liquid particles.
  • These air jet holes 9 may be formed on a pair of projections constructed as shown in the Drawings, and each having an upper face tapered radially and axially inward and in a tangential direction with respect to the sectional circle of the sprayed liquid particles.
  • the air jet streams are injected from the pair of air jet holes 9 in a radially and axially inwardly tapered direction with respect to the axis of the spray gun and in the tangential direction of the sectional circle of the sprayed liquid particles, as shown in FIG. 9, a turning force is applied to the sprayed liquid particles, as shown in FIG. 10, with the result that the conical or tulipshaped sprayed liquid particles are flattened and expanded in the direction passing through the air jet holes 9, as shown in FIG. 12, and are contracted in the direction perpendicular to the direction passing through the air jet holes 9, as shown in FIG. 11.
  • These air jet streams may be injected through a pair of pipes (not shown) disposed outside of the air and liquid slits 8 and 6 and in opposite positions with respect to the center of the slits and so directed as to inject the air jet streams in inward and tangential direction of the sectional circle of the sprayed liquid particles.
  • the velocity of the air jet streams may be varied by changing the diameter of the air jet holes 9. Since the air jet uses the same source of compressed air as the circular air slits 8, the respective pressure may be adjusted thereby.
  • the spray head portion consists basically of the same elements as that illustrated in FIG. 9 including the air stream expanding element 7 inserted into the hollow chamber (not shown) for forming a circular air slit 8 for expandingly spraying the liquid by injecting the compressed air to form the liquid particles in a conical shape, and a circular air slit for atomizing the liquid.
  • Two pairs of air jet holes 11 and 11 are disposed outwardly of the air and liquid slits 8 and 6 and in opposite positions with respect to the center of the slits for injecting air jet streams in inward and opposed tangential directions with respect to the sectional circle of the sprayed liquid particles.
  • These air jet holes 11 and 11' may be formed on a pair of projections constructed as shown in the Drawings, and each having a pair of upper faces radially and axially inwardly tapered in both tangential directions of the sectional circle of the sprayed liquid particles.
  • FIGS. 13 through 16 provides a wider expanded width spray pattern than that that is produced by the embodiment as disclosed in FIGS. 9 through 12, wherein a single pair of holes are utilized.
  • the two pairs of air jet holes 11 and 11' are preferably provided on both tapered faces of the trapezoidal projection which are inclined inwardly and in tangential directions of the sectional circle of the sprayed liquid particles
  • these air jet streams may be injected from two pairs of pipes (not shown) disposed outwardly of the air and liquid slits 8 and 6 and in opposed positions with respect to the center of the slits and so directed as to inject the air jet streams inwardly and tangentially of the sectional circle of the sprayed liquid particles.
  • the air jet holes may be so provided on the flat face of the projections as to direct the air jet streams in the manner as previously described.
  • circle of the sprayed liq uid particles and the size of the air jet holes may not always be the same, but the air jet holes which are disposed on opposite projections but facing in the same tangential direction are preferably of the same size and positioned at the same angle.
  • the principle employed by the operation of the air jet streams of the spray head essentially breaks the vacuum produced in the center of the conically-shaped sprayed liquid particles as a result of the air jet streams being injected into the conical spray.
  • the spray head portion should be formed from an electrically resistant substance containing electroconductive particles.
  • the solid element may be made of bakelite containing electro-conductive particles interspersed therein.
  • the solid element may be made of partial stripes of electrically resistant substances, so as to form two or more charge regions at one end of the element for electrostatically charging the liquid being sprayed.
  • the elements may be connected to a high voltage power source. Good results have been obtained where the element has a resistance of approximately to 200 megohms per c.c. when measured with a 1,000 volt meter. This electrically resistant element, therefore, prevents spark ignition of the spray, even when high voltages are applied between the spray head portion and the article, yet it permits the creation of a good electrostatic field in order to effectively electrostatically charge the liquid particles.
  • the spray gun includes a conduit 12 for feeding paint to the spray head portion, a conduit 13 for feeding compressed air to the spray head portion, a trigger 14 for feeding the paint and compressed air from the conduits 12 and 13 to the spray head portion, an adjusting valve 15 for adjusting the pressure of the compressed air and a spray head 16.
  • the spray head 16 includes a cylindrical hollow air chamber 17 formed axially within the spray head portion and opened at one end of the spray head portion.
  • An air stream expanding element 18 is inserted into the hollow chamber 17 for forming a circular air outlet aperture 20 for expandingly spraying the liquid by injecting compressed air to form a spray of conical or tulip-shape having a circular cross-section.
  • a circular liquid aperture 22 is disposed adjacent to and around the circular air outlet aperture, whereby the liquid is atomized by the air spray.
  • the element 18 has a guide passage 19 provided on the central axis for spirally feeding the compressed air. This element also has a disc provided on its end which is perpendicular to its axis.
  • a liquid chamber 21 is provided around the air chamber 17.
  • the disc of the air stream expanding element 18 is preferably over 3 millimeters in diameter.
  • a tulip-shaped or conical spray is formed from the circular. liquid outlet aperture.
  • the direction of the sprayed liquid particles forming the conical shape is preferably at an angle of 45? with respect to the axis of axially inward air stream expanding element 18.
  • the spray head portion further comprises. a pair of projections 23, each having a top face. tapered-radially and axially inward and positioned such that the jet stream is directed tangentially to thecross-section of the liquid spray, as shown.
  • a pair of air jet apertures 24 are located op the projections 23, and a conduit 25 is provided from the adjusting valve to the circularair outlet'aperture for introducing the compressed air from the source of the compressed air through the sprayer conduit 13, the spray head conduit 25, and the air outlet aperture 20.
  • FIG. 14 is manually activated so that compressed air is fed through conduit 13 into air chamber 17, through the circular air outlet aperture 20.
  • a liquid such as'paint
  • a liquid such as'paint
  • air jet streams are formed by drawing compressed air through adjusting valve 15, into air conduit and through air jet apertures 24 such that the jet streams are emitted radially and axially inward with respect to the axis of the spray gun and in a tangential direction to the cross-section of the liquid spray, as shown in the previous Figures of the Drawings.
  • the conical or tulip-shaped spray is formed by the introduction of air and liquid emitted from the circular air and liquid outlet apertures, the spray is elongated along one direction and contracted along its perpendicular diameter such that the quantity of liquid sprayed per unit time is increased, yet per mitting the liquid to be coated evenly on the surface.
  • the spray head of the present invention is used for electrostatically coating a liquid onto a surface, the velocity of the sprayed liquid particles is decelerated by the particular structure of the spray head such that spattering of the coating does not result.
  • a device for spraying liquid in a pattern having a generally elliptical cross-section comprising a spray head portion including a circular air slit for injecting compressed air, a circular liquid slit disposed adjacent to and around said circular air slit for atomizing said liquid, and a pair of air jet apertures disposed outwardly and rearwardly of said slits and in opposed positions with respect to the center of said slits for injecting compressed air in a generally inward and tangential direction to the sectional circle of the sprayed stream of liquid particles so as to contact said sprayed stream of liquid particles substantially in the plane of said slits.
  • said air jet apertures comprise two pairs of air jet apertures disposed outwardly of said air and liquid slits and in opposed positions with respect to the center ofsaid slits for injecting air jet streams inwardly and inopposed tangential directions with respect to the sectional circle of the sprayed liquid particles.
  • pairs of air jet apertures are formed on a pair of projections integrally constructed with the spray head portionand each including a pair of upper faces tapered radially and axially inward and in opposed tangential directions to the sectional circle of said sprayed liquid particles.
  • a device for spraying liquid in a pattern having a generally elliptical cross-section comprising a generally cylindrical hollow chamber formed axially in a spray head portion and opened at one end of said spray head portion, an air stream expanding element inserted in said hollow chamber for forming a circular air slit for expandingly spraying liquid by injecting compressed air to form the liquid particles in a generally conical shape, a circular liquid slit disposed adjacent to and around said circular air slit for atomizing said liquid, and a pair of air jet apertures disposed outside of and rearwardly of said air and liquid slits and in opposed positions with respect to the center of said slits for injecting air jet streams in a direction inwardly and tangentially to the sectional circle of the sprayed liquid particles so as to contact said sprayed stream of liquid particles substantially in the plane of said slits.
  • a device for spraying liquid in a pattern having a generally elliptical cross-section comprising a cylindrical hollow chamber formed axially in a spray head portion and opened at one end of said spray head portion, an air stream expandingelement inserted within said hollow chamber for forming a circular air slit for expandingly spraying the liquid by injecting compressed air to form the liquid particles in a generally conical shape, a circular liquid slit disposed adjacent to'and around said circular air slit for atomizing said liquid, and a pair of air jet pipes disposed outwardly and rearwardly of said air and liquid slits and in opposed positions with respect to the center of said slits and so disposed as to inject the air jet streams in-wardly and tangentially to the sectional circle of the sprayed liquid particles so as to contact said sprayed stream of liquid particles sub-stantially in the plane of said slits.
  • a device for spraying liquid in a pattern having a generally elliptical cross-section comprising a cylindrical hollow chamber formed axially in a spray head portion and opened at one end of said spray head portion, an air stream expanding element inserted within said hollow chamber for forming a circular air slit for expandingly spraying liquid by injecting compressed air to form liquid particles in a generally conical shape, a circular liquid slit disposed adjacent to and around said circular air slit for atomizing said liquid, and two pairs of air jet apertures disposed outwardly and rearwardly of said air and liquid slits and in opposed positions with respect to the center of said slits for injecting air jet streams inwardly and tangentially of the sectional circle of said sprayed liquid particles so as to contact said sprayed stream of liquid particles substantially in the plane of said slits.
  • a device for spraying liquid in a pattern having a generally elliptical cross-section comprising a cylindrical hollow chamber formed axially in a spray head portion and opened at one end of said spray head portion,
  • an air stream expanding element inserted within said hollow chamber for forming a circular air slit for expandingly spraying the liquid by injecting compressed air to form the liquid particles in a generally conical shape, a circular liquid slit disposed adjacent to and around said circular air slit for atomizing said liquid, and two pairs of air jet pipes disposed outwardly and rearwardly of said air and liquid slits and in opposed positions with respect to the center of said slits and so directed as to inject air jet streams inwardly and tangentially of the sectional circle of said sprayed liquid particles so as to contact said sprayed stream of liquid particles substantially in the plane of said slits.

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US886296A 1969-08-07 1969-12-18 Device for spraying liquid Expired - Lifetime US3693882A (en)

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JP44062014A JPS4829606B1 (enrdf_load_stackoverflow) 1969-08-07 1969-08-07

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JP (1) JPS4829606B1 (enrdf_load_stackoverflow)
CA (1) CA933978A (enrdf_load_stackoverflow)
DE (1) DE2005830A1 (enrdf_load_stackoverflow)
FR (1) FR2057644A5 (enrdf_load_stackoverflow)
GB (1) GB1277371A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854896A (en) * 1973-01-29 1974-12-17 Gilbert Associates Method of converting coal to pipeline quality gas
US4349153A (en) * 1980-07-29 1982-09-14 Champion Spark Plug Company Spray nozzle
US20080210771A1 (en) * 2005-08-20 2008-09-04 Forschungszentrum Karlsruhe Gmbh Two-Substance Atomizing Device
US20090314200A1 (en) * 2008-06-20 2009-12-24 Hon Hai Precision Industry Co., Ltd. Apparatus for dispensing glue onto optical element
US10688508B2 (en) 2014-06-10 2020-06-23 3M Innovative Properties Company Nozzle assembly with external baffles

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4064295A (en) * 1973-11-06 1977-12-20 National Research Development Corporation Spraying atomized particles
DE3230977A1 (de) * 1982-08-20 1984-02-23 Lechler Gmbh & Co Kg, 7012 Fellbach Zweistoff-zerstaeubungsduese
JPS5946159A (ja) * 1982-09-03 1984-03-15 Asahi Okuma Ind Co Ltd エアレススプレイ塗装方法及びエアレス塗装用スプレイガン
GB8905835D0 (en) * 1989-03-14 1989-04-26 British Petroleum Co Plc Spray nozzle
CN113713975B (zh) * 2021-07-29 2022-10-04 南方科技大学 一种四电极静电喷雾打印装置及薄膜制备方法

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US2049700A (en) * 1935-07-15 1936-08-04 Binks Mfg Co Air nozzle for flat-spraying appliances
US2070696A (en) * 1935-12-11 1937-02-16 Vilbiss Co Spray head
DE721220C (de) * 1936-11-27 1942-05-29 Rodas Maschinen Fabrik Roderic Vorrichtung zum Bespruehen frisch bedruckter Bogen mit einer rasch erstarrenden, einen Niederschlag hinterlassenden Fluessigkeit
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US2511356A (en) * 1946-05-24 1950-06-13 American Brake Shoe Co Spray gun nozzle
US2569251A (en) * 1946-01-17 1951-09-25 Colorator Ab Spraying device and operation thereof
US2587993A (en) * 1948-11-09 1952-03-04 Gray William Spray gun air cap
US2894691A (en) * 1955-01-11 1959-07-14 Sedlacsik John Electrostatic deposition
US3181798A (en) * 1962-07-18 1965-05-04 Spraying Systems Co Airless spray gun having spray and valve safety means
US3195819A (en) * 1962-03-14 1965-07-20 Watanabe Tamotsu Spray nozzle for coating articles
US3252657A (en) * 1965-05-03 1966-05-24 Don D Winegar Spray gun air cap
US3455510A (en) * 1966-11-14 1969-07-15 Metco Inc Nozzle and gas mixing arrangement for powder type flame spray gun
US3463395A (en) * 1966-01-06 1969-08-26 S K V Sa Spray gun nozzle heads

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1752923A (en) * 1927-04-21 1930-04-01 Vilbiss Co Spray head
US1906975A (en) * 1930-02-25 1933-05-02 Albert G Larson Spray gun
US2049700A (en) * 1935-07-15 1936-08-04 Binks Mfg Co Air nozzle for flat-spraying appliances
US2070696A (en) * 1935-12-11 1937-02-16 Vilbiss Co Spray head
DE721220C (de) * 1936-11-27 1942-05-29 Rodas Maschinen Fabrik Roderic Vorrichtung zum Bespruehen frisch bedruckter Bogen mit einer rasch erstarrenden, einen Niederschlag hinterlassenden Fluessigkeit
US2416923A (en) * 1943-08-30 1947-03-04 Alexander Milburn Company Spray gun
US2569251A (en) * 1946-01-17 1951-09-25 Colorator Ab Spraying device and operation thereof
US2511356A (en) * 1946-05-24 1950-06-13 American Brake Shoe Co Spray gun nozzle
US2587993A (en) * 1948-11-09 1952-03-04 Gray William Spray gun air cap
US2894691A (en) * 1955-01-11 1959-07-14 Sedlacsik John Electrostatic deposition
US3195819A (en) * 1962-03-14 1965-07-20 Watanabe Tamotsu Spray nozzle for coating articles
US3181798A (en) * 1962-07-18 1965-05-04 Spraying Systems Co Airless spray gun having spray and valve safety means
US3252657A (en) * 1965-05-03 1966-05-24 Don D Winegar Spray gun air cap
US3463395A (en) * 1966-01-06 1969-08-26 S K V Sa Spray gun nozzle heads
US3455510A (en) * 1966-11-14 1969-07-15 Metco Inc Nozzle and gas mixing arrangement for powder type flame spray gun

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3854896A (en) * 1973-01-29 1974-12-17 Gilbert Associates Method of converting coal to pipeline quality gas
US4349153A (en) * 1980-07-29 1982-09-14 Champion Spark Plug Company Spray nozzle
US20080210771A1 (en) * 2005-08-20 2008-09-04 Forschungszentrum Karlsruhe Gmbh Two-Substance Atomizing Device
US20090314200A1 (en) * 2008-06-20 2009-12-24 Hon Hai Precision Industry Co., Ltd. Apparatus for dispensing glue onto optical element
US10688508B2 (en) 2014-06-10 2020-06-23 3M Innovative Properties Company Nozzle assembly with external baffles

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CA933978A (en) 1973-09-18
JPS4829606B1 (enrdf_load_stackoverflow) 1973-09-12
DE2005830A1 (de) 1971-02-18
GB1277371A (en) 1972-06-14
FR2057644A5 (enrdf_load_stackoverflow) 1971-05-21

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