US3195819A - Spray nozzle for coating articles - Google Patents

Spray nozzle for coating articles Download PDF

Info

Publication number
US3195819A
US3195819A US261373A US16137363A US3195819A US 3195819 A US3195819 A US 3195819A US 261373 A US261373 A US 261373A US 16137363 A US16137363 A US 16137363A US 3195819 A US3195819 A US 3195819A
Authority
US
United States
Prior art keywords
spray
coating
spray nozzle
atomizing
coating material
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.)
Expired - Lifetime
Application number
US261373A
Other languages
English (en)
Inventor
Watanabe Tamotsu
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
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3195819A publication Critical patent/US3195819A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • 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
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
    • B05B5/0411—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with individual passages at its periphery

Definitions

  • one type of spray nozzle used for electrostatic coating has a coating material discharge outlet in the center thereof surrounded by a slit-shaped compressed air discharge outlet.
  • the electrostatic charge given to the atomized coating material particles is uneven between the particles in the central portion and those in the peripheral portion. Conse quently, this causes an uneven deposition of coating materials on articles to be coated, especially when the article to be coated has many uneven surfaces and sharp
  • it is diflicult to impart sufiicient electrostatic charges to the atomized coating material particles because of the limited charging ability of this type of spray nozzle due to the nature of its construction, thereby requiring additional touch-up Work to even out the deposition layer.
  • another type of nozzle is designed to have a plurality of subdivided coating material discharge outlets with respective compressed air discha-rge outlets arranged in parallel.
  • an atomizing means so designed as to effect uniform corona discharges on its entire surface, and, at the same time, be able to reduce the air pressure employed for atomization to as low a pressure as possible so that the electrostatic attraction force will not be interrupted.
  • the purpose of my invention is to satisfy all the necessary requirements herein referred to above and to offer such an air spray nozzle which can atomize coating materials efiiciently with the lowest possible air pressure and obtain the widest possible spray pattern in the'required zone.
  • the principal object of this invention is to provide an improved spray nozzle with an atomizing means for coating materials.
  • Another object of this invention is to provide an improved spray nozzle usable for electrostatic coating under application of high voltage, for mounting to electrostatic hand spray guns or automatic electrostatic coating devices.
  • a further object of this invention is to provide a spray nozzle as described above having atomizing means of preselected configurations with sharp edges so that the corona discharges can be formed over the entire surface to enable it to impart uniform electrostatic charges to the atomized coating material particles.
  • Still another object of this invention is to provide a spray nozzle with one elect-rode or a plurality of additional corona discharge electrodes on the surface of the atomizing head for the purpose of controlling the formation of corona discharges at the atomizing means and for having electrostatic charges imparted to the atomized coating material particles mainly by said electrode or electrodes.
  • An additional object of this invention is to provide such spray nozzle as described above with one electrode or a plurality of said corona discharge electrodes on the surface of the atomizing head for the purpose of maintaining a potential difference between said atomizing head and the corona discharge electrode or electrodes by applying different potentials of high voltage respectively in order toimpart more uniform electrostatic charges to the atomized coating material particles.
  • Another object of this invention is to provide such spray nozzle as described above with the outlets of said atomizing means being so shaped as to enable it to control the spray pattern or spray zone of the atomized particles flowing towards the article to be coated.
  • a further object of this invention is to provide such spray nozzle as described above with a valve plate exactly fitting the inside of the coating material outlet for controlling the spray pattern and zone of coating materials by adjusting the opening degree of said outlet by means of said valve plate.
  • Still another object of this invention is to provide a spray nozzle as described above that can be rotated about an axis in order to obtain a circular spray pattern of coating materials.
  • An additional object of this invention is to provide a spraying device usable for coating work having one or a plurality of nozzles being arranged on the periphery of a rotary body, the body being rotated in a direction opposite to the direction of discharge of coating materials, and at the velocity substantially equal to the dis charge velocity of coating materials to provide substanmaterial particles around the rotary body.
  • FIG. 1 is a schematicview of a spray gun system
  • FIG. 2 is .a schematicview or aspray gun syste-rnus'ed for electrostatic coating
  • FIG:.3 is. a partial "sectional view taken in a vertical plane taken along vline 3-3 ofFIG, 4, illustrating the internal structural details of a spray gun andnozzleconstructed in accordancewith the invention; f 1
  • FIG; 4 is 'a partial sectional elevational view taken alonglineH -of FIG,- 5 illustrating astructural section otrthe spray nozzle constructed in'accordance with'the nt Qn; i
  • FIG. 5 is a frontview of the spray nozzle looking in the direction indicated by line 5-3-5 of FIG. 3; 1 FIG. 6 is at partial sectional view taken in a vertical plan al ng ,n. --6 f-F G.-- 7 s owi ganalternate embodiment of the invention and illustrating a valve plate which controls the supply-and spray anglejof coating materials, and alsoillustrating the corona-discharge tially zero or near zero :velocity of atomized coating 7 direction opposite to the direction of discharge of coating materials, and at a velocitysubstantially equal to the V I Spray nozzle A shown in FIG. 1 is mounted generally on the front-endtof a spray gun Br The spray gun B is connected to a coating material supply tanlcC, and a compressed air supply source E- by a supply pipe D.
  • the spray nozzle A is generally connected to a high voltage power pack F by 'ineans ofa high ring to FIGURES 3 to 8,.zwhere vbasic forms of the spray nozzles are'iliserstrated; the body 21. of; said spray gun B has a coating material intake 23 at the front portion along its axis for receiving the coating material to electrodes which impart-the major electrostatic charges 7 to the atomized coating material particles; i 7
  • FIG. 7' is a partial sectional view taken along'line 7-7 of FIG. 8'showing structural section of the spray nozzle I shapes for along line 10-10 @51 FIG.;11' illustrates the spray patterns'or spray zones created by three different shaped atomizing meansrespec:
  • FIG. 12 illustrates configurations of corona discharges produced by three different shaped;;aton1izing means respectively selected from among; those 7 illustratedin FIG; 9b-under application of high voltage to said atomiz ing means; s g
  • FIG 13 illustrates the configuration of'corona dis charges produced by straight; edge atomizing means;
  • FIG. l4 illustrates;the action of electrostatic; charges view of the spray nozzle looking 7 FIG. 10 is an enlarged partialsectional'view taken V sage25 through an air pool 36.
  • the tip of said atomizing head .29 has a semi-circulararcuate outline outwardly 'swollenfrom a base 30, and as shown in FIG. 4 p P of the side view, the-tip of said atomizing head 29 has an angularly protruding'surface '31 having a slit shaped coating material-outlet 32 along the ridge-like end of the surface, communicating with the coating material passage 23 through a coating material'pool enclosedsby partition walls 33; in parallel with said outlet 32,'slitshaped comp'ressed airj discharge outlets "34'are provided;
  • this atomizing means 37 having said coating material outlet 32 and compressed air discharg'e outlets 34, asthe air -pressure employed for atomization is low, it is pos sible to obtain'finely atomized coating material particles pattern in the required zone. without requiring any addi-. .50
  • FIG. 15 illustrates several'forms of the valve plates connected to valve rods to control the supply and spray angle of coating materials
  • FIG. 16 illustrates aystate of atomization of] coating materials. by one forrnof a spray nozzle and the vegtor chart explaining the attendantphenomenom'
  • I r FIG. 17a are front. and. side views ofthe'atomizing' means showing a locus of rotation and a spray pattern produced by the atomizing means when the atomizingf head-is rotated about a fixed axiswiththelength of said coating material outlet as a radius"
  • FIG.- 17b are front-and side views v
  • the atomizing means 37 being "designedto produce uniforrn'corona discharges along its entire sharp arcuate edges impartsmniform" electrostatic charges tothe atomized coating material particles, resulting in a uniform layer of depositionon the article to be coatedr
  • the air pressure employed for the purpose of atomization is low, theloss of coat- ;ing materials by oversprayingis minimized.
  • FIG. 18 is a front view of a rotary" body equipped with a plurality of said atomizing nozzles onthe periphery thereof, in which; said rotary body is rotated in the rapidly diminishing the velocity of the discharged particles; as compared tothe velocity of, the particles on the outer per phery; to zero or nearly, zero at the area very close tothe center of jthe atomizin'g means. This phenomenon renders more effective the actioniof electrostatic attraction.
  • corona discharge electrodes 40 are provided on a base ring 39 secured firmly to the base 30 of said atomizing head 29. It is necessary for said corona discharge electrodes ttl to be positioned slightly ahead of the front tip of the atomizing means 37 and each of these electrodes 4% should have a front end with a suitably sharp edge in order to control the corona formation along the surface of said atomizing means 37. At the same time, said corona discharge electrodes should be placed in such position that high voltage applied to the atomizing head 29 can also be applied to said corona discharge electrodes.
  • the high voltage applied to the atomizing means 37 is also applied to the corona discharge electrode 49.
  • a similar eifect may be :obtained when a pro-scribed potential ditference is given to the atomizing means 37 and these electrodes 40.
  • corona discharge electrodes 40 as described hereinbefore, is effective not only to increase the coating efiiciency by controlling the electrostatic charges to be given to the atomized particles, but also protect the spray nozzle from possible damage caused by dropping or giving shock to said gun by impact with other objects, and further, avoids the possible danger of sparking caused by accidental contact of the gun with the article to be coated.
  • a slidable valve plate 41 is provided within the coating material outlet 32 for the purpose of changing the angular aperture of the opening of said outlet 32 in order to con trol the discharge angle of coating materials.
  • the installation of the valve plate 41 can be made by any of several desired means, but in the illustrated embodiments, the valve plate 41 is fixed to the front end of a support rod 42, which is an elongated part of a valve rod 25 controlling the flow of coating materials from the discharge orifice 24. Therefore, a simultaneous control of the supply and spray angle of coating materials is accomplished.
  • valve plate 41 By sliding the valve plate 41 forward, the crescent shaped clearance shown in FIG. 6 will be gradually narrowed.
  • the valve plate is capable of controlling the spray angle in the ranges from zero to 180 degrees.
  • valve plate 41 By sliding the valve plate 41 completely forward, the coating material discharge outlet 32 is tightly closed, and the spray of atomized coating material is stopped nearly instantly.
  • the spray of coating materials is perfectly controlled by said valve plate 41 and that the spray nozzle equipped with this valve plate 41 can be effectively used for an automatic coating operation as it can be easily controlled to spray only when the articl to be coated is passing in front of said nozzle by means of conveyor.
  • the spray nozzle equipped with this valve plate 41 can be effectively used for an automatic coating operation as it can be easily controlled to spray only when the articl to be coated is passing in front of said nozzle by means of conveyor.
  • valve plate is not limited to be a semicircular plate, but it can be designed in any shape according to the requirement. As illustrated in FIG. 15 a semi-circular wire or strip or a plurality of said wire or strip can be used. It can also be used in the form of a semi-circular plate being cut partially in the central portion thereof so that the spray angle can be controlled at the near zero degree at the coating material discharge outlet. It is also possible to change the shape so as to meet the shape of said coating material discharge outlet employed.
  • the shape of the atomizing means is semi-circular in the plane view of FIG. 3, but it can be made in a polygonal or pseudoarcuate or semi-circular shape in a broad sense, or if desired, a plurality of such shapes of atomizing means can be used, also. While the atomizing means has a narrow slit-like shape in the front view of FIG. 5, it does not need to be exactly such a narrow slit-shape, but any modified shapes as illustrated in FIG. 9b can be used, also. For example, an atomizing means with a discontinuous narrow slit can be used.
  • the atomizing means should be provided with sharp edges so that the corona discharges can be formed over the entire surface thereof.
  • the required spray pattern and zone of coating materials can be obtained by using the proper shape of said atomizing means 37 and valve plate 41.
  • FIGURES 12 and 13 illustrate the states of corona discharges formed by different shapes of the atomizing means.
  • All the spray nozzles as herein described either as a basic or modified embodiment of this invention can be rotated by means of a motor 44 about an axis 43, positioning the atomizing head 29 thereon, with the full length of the atomizing means 37 as the radius or the diameter as illustrated respectively in FIGURES 17a and 17b in order to obtain a circular spray pattern.
  • one or a plurality of said atomizing heads 29 having atomizing means 37 may be secured on the periphery of a rotary body 45 with the discharge direction of coating materials being tangential to the circle 46 as a locus of rotation of the atomizing head 29 as shown in FIGURES 18 and 19.
  • Body 45 can be rotated by means of a motor 44 about an axis 43 in a direction opposite to the discharge direction of coating materials at a velocity substantially equal to the discharge velocity of coating materials and thereby zero or nearly zero velocity of atomized coating material particles can be obtained in the vicinity around the rotary body 45, and the atomized coating material can be easily and efiectively deposited on the article to be coated by the electrostatic attraction force.
  • this spray nozzle can be used as an atomizing means for conventional air spray guns as well as electrostatic spray guns of electrostatic coating devices and obtains a high coating efiiciency because of its specific featur of atomizing coating materials with low air pressure irrespective of the nature of coating materials whether it may be oil-based or water-based or any other coating materials.
  • a spray nozzle for atomizing liquid coating materials comprising a substantially bell-shaped housing having a long and narrow aperture therethrough, said aperture scribing an areuate path on a plane passing through the longitudinal axis of said aperture, a first plate extending into said aperture from within said bell-shaped housing on one side of said plane, said first plate having an end substantially following said areuate path and terminating at a sharp edge within said aperture, and a second plate extending into said aperture from within said bell-shaped housing on the other side of said plane, said second plate having an end substantially following said areuate path and terminating at a sharp edge within said aperture, said first and second plates forming therebetween a first narrow arcuately shaped outlet through which the liquid coating material passes, said first plate cooperating with said bell-shaped housing to define a second narrow arcuately shaped outlet, said second plate cooperating with opposite Side of and substantially parallel to said first outlet, said, second and third outlets fconimunicating with a supply source of compressed air.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Nozzles (AREA)
US261373A 1962-03-14 1963-02-27 Spray nozzle for coating articles Expired - Lifetime US3195819A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP979862 1962-03-14

Publications (1)

Publication Number Publication Date
US3195819A true US3195819A (en) 1965-07-20

Family

ID=11730200

Family Applications (1)

Application Number Title Priority Date Filing Date
US261373A Expired - Lifetime US3195819A (en) 1962-03-14 1963-02-27 Spray nozzle for coating articles

Country Status (9)

Country Link
US (1) US3195819A (xx)
BE (1) BE629589A (xx)
CH (1) CH412655A (xx)
DE (1) DE1571086A1 (xx)
ES (1) ES285532A1 (xx)
FR (1) FR1350407A (xx)
GB (1) GB1010618A (xx)
LU (1) LU43257A1 (xx)
NL (1) NL290138A (xx)

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415426A (en) * 1966-05-16 1968-12-10 Eaton Yale & Towne Dispensing valve
US3693882A (en) * 1969-08-07 1972-09-26 Nippon Kogei Kogyo Co Device for spraying liquid
US3693877A (en) * 1970-05-06 1972-09-26 Electrogasdynamics Electrostatic spray coating apparatus
US4066041A (en) * 1975-04-11 1978-01-03 Gema Ag Apparatebau Apparatus for electrostatically applying coating material to articles and the like
US4236674A (en) * 1978-01-10 1980-12-02 Binks Bullows Limited Spray nozzle
US4657184A (en) * 1986-01-31 1987-04-14 Champion Spark Plug Company Fluid tip and air cap assembly
US4744513A (en) * 1982-10-21 1988-05-17 Basf Farben & Faser Ag Device and process for the electrostatic coating of articles with fluids
US4747546A (en) * 1985-08-20 1988-05-31 Ransburg-Gema Ag Spray apparatus for electrostatic powder coating
US4830279A (en) * 1987-09-21 1989-05-16 Nordson Corporation Flat spray nozzle for a spray gun
US5259558A (en) * 1990-02-05 1993-11-09 Itw Limited Indexing air cap
US5267693A (en) * 1992-02-12 1993-12-07 Dickey Barry A Spray gun non-stick paint connector block
US6012657A (en) * 1997-10-03 2000-01-11 Nordson Corporation Powder spray head for fan-like patterns
US6394369B2 (en) * 1999-12-22 2002-05-28 Visteon Global Tech., Inc. Nozzle
US20030080220A1 (en) * 1999-09-16 2003-05-01 Mather Brian D. Powder spray gun with inline angle spray nozzle
US20080014765A1 (en) * 2005-12-05 2008-01-17 Smc Corporation Ionizer with parts-extension unit
US20080098895A1 (en) * 2006-10-31 2008-05-01 Smc Corporation Ionizer
US20080190294A1 (en) * 2007-02-14 2008-08-14 Smc Corporation Ionizer
US20080217422A1 (en) * 2007-03-09 2008-09-11 Daniel Elden Near Nozzle assembly, delivery system and method for conveying insulation material
US20100224122A1 (en) * 2009-03-09 2010-09-09 Illinois Tool Works Inc. Low pressure regulation for web moistening systems
US20100224123A1 (en) * 2009-03-09 2010-09-09 Illinois Tool Works Inc. Modular nozzle unit for web moistening
US20100224703A1 (en) * 2009-03-09 2010-09-09 Illinois Tool Works Inc. Pneumatic Atomization Nozzle for Web Moistening
US8944351B2 (en) 2011-05-06 2015-02-03 Saint-Gobain Abrasives, Inc. Paint cup assembly with an outlet valve
US9162240B2 (en) 2004-12-16 2015-10-20 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie Liquid container system for a spray gun
US9186881B2 (en) 2009-03-09 2015-11-17 Illinois Tool Works Inc. Thermally isolated liquid supply for web moistening
US9586220B2 (en) 2011-06-30 2017-03-07 Saint-Gobain Abrasives, Inc. Paint cup assembly
CN107755122A (zh) * 2017-10-20 2018-03-06 鞍钢未来钢铁研究院有限公司 一种冷轧酸洗水基防锈液喷涂量精确控制方法及装置
US10035156B2 (en) 2006-06-20 2018-07-31 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US10207284B2 (en) * 2015-05-07 2019-02-19 Boe Technology Group Co., Ltd. Coating machine for applying coating agent
US10882064B2 (en) 2011-12-30 2021-01-05 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs Convertible paint cup assembly with air inlet valve
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US20230019937A1 (en) * 2019-12-20 2023-01-19 Saint-Gobain Isover Device for spraying an insulation product
US12090506B2 (en) 2020-07-14 2024-09-17 Techtronic Cordless Gp Powered sprayer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE790830A (fr) * 1971-11-02 1973-02-15 Nordson Corp Pulverisateur electrostatique
DE2264386C2 (de) * 1971-11-02 1982-04-22 Nordson Corp., 44001 Amherst, Ohio Elektrostatische Sprühpistole
FR2605533A1 (fr) * 1986-10-28 1988-04-29 Sames Sa Projecteur de produit pulverulent en suspension dans l'air
CN109162734B (zh) * 2018-09-21 2020-02-04 泰安泰烁岩层控制科技有限公司 一种煤矿支护变角度喷浆结构

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US977281A (en) * 1909-11-29 1910-11-29 De Vilbiss Mfg Co Air-brush.
US1092785A (en) * 1911-04-28 1914-04-07 Robert M Stene Burner.
US1663263A (en) * 1924-03-22 1928-03-20 Robert W Sharp Spraying nozzle for macerating machines and the like
US2029337A (en) * 1932-11-21 1936-02-04 California Spray Chemical Corp Nozzle
US2214035A (en) * 1937-08-17 1940-09-10 Vilbiss Co Spray head
US2530206A (en) * 1942-10-31 1950-11-14 Colorator Ab Spray gun
US2674210A (en) * 1950-09-29 1954-04-06 Union Carbide & Carbon Corp External powder feed-hand scarfing apparatus
US3032278A (en) * 1960-06-08 1962-05-01 Horace F Thomas Apparatus for spraying viscous fluids
US3059859A (en) * 1958-10-30 1962-10-23 Arleigh G Hupp Spraying apparatus
US3085749A (en) * 1957-07-23 1963-04-16 Schweitzer Electrostatic Compa Electrostatic spray heads
US3086711A (en) * 1959-04-27 1963-04-23 Sames Mach Electrostat Spray guns having a fixed electrostatic head

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US977281A (en) * 1909-11-29 1910-11-29 De Vilbiss Mfg Co Air-brush.
US1092785A (en) * 1911-04-28 1914-04-07 Robert M Stene Burner.
US1663263A (en) * 1924-03-22 1928-03-20 Robert W Sharp Spraying nozzle for macerating machines and the like
US2029337A (en) * 1932-11-21 1936-02-04 California Spray Chemical Corp Nozzle
US2214035A (en) * 1937-08-17 1940-09-10 Vilbiss Co Spray head
US2530206A (en) * 1942-10-31 1950-11-14 Colorator Ab Spray gun
US2674210A (en) * 1950-09-29 1954-04-06 Union Carbide & Carbon Corp External powder feed-hand scarfing apparatus
US3085749A (en) * 1957-07-23 1963-04-16 Schweitzer Electrostatic Compa Electrostatic spray heads
US3059859A (en) * 1958-10-30 1962-10-23 Arleigh G Hupp Spraying apparatus
US3086711A (en) * 1959-04-27 1963-04-23 Sames Mach Electrostat Spray guns having a fixed electrostatic head
US3032278A (en) * 1960-06-08 1962-05-01 Horace F Thomas Apparatus for spraying viscous fluids

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3415426A (en) * 1966-05-16 1968-12-10 Eaton Yale & Towne Dispensing valve
US3693882A (en) * 1969-08-07 1972-09-26 Nippon Kogei Kogyo Co Device for spraying liquid
US3693877A (en) * 1970-05-06 1972-09-26 Electrogasdynamics Electrostatic spray coating apparatus
US4066041A (en) * 1975-04-11 1978-01-03 Gema Ag Apparatebau Apparatus for electrostatically applying coating material to articles and the like
US4236674A (en) * 1978-01-10 1980-12-02 Binks Bullows Limited Spray nozzle
US4744513A (en) * 1982-10-21 1988-05-17 Basf Farben & Faser Ag Device and process for the electrostatic coating of articles with fluids
US4747546A (en) * 1985-08-20 1988-05-31 Ransburg-Gema Ag Spray apparatus for electrostatic powder coating
US4657184A (en) * 1986-01-31 1987-04-14 Champion Spark Plug Company Fluid tip and air cap assembly
US4830279A (en) * 1987-09-21 1989-05-16 Nordson Corporation Flat spray nozzle for a spray gun
US5259558A (en) * 1990-02-05 1993-11-09 Itw Limited Indexing air cap
US5267693A (en) * 1992-02-12 1993-12-07 Dickey Barry A Spray gun non-stick paint connector block
US6012657A (en) * 1997-10-03 2000-01-11 Nordson Corporation Powder spray head for fan-like patterns
US20030080220A1 (en) * 1999-09-16 2003-05-01 Mather Brian D. Powder spray gun with inline angle spray nozzle
US6394369B2 (en) * 1999-12-22 2002-05-28 Visteon Global Tech., Inc. Nozzle
US9162240B2 (en) 2004-12-16 2015-10-20 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasie Liquid container system for a spray gun
US20080014765A1 (en) * 2005-12-05 2008-01-17 Smc Corporation Ionizer with parts-extension unit
US7465340B2 (en) * 2005-12-05 2008-12-16 Smc Corporation Ionizer with parts-extension unit
US12064783B2 (en) 2006-06-20 2024-08-20 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11679399B2 (en) 2006-06-20 2023-06-20 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11548018B1 (en) 2006-06-20 2023-01-10 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US11040360B2 (en) 2006-06-20 2021-06-22 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US10035156B2 (en) 2006-06-20 2018-07-31 Saint-Gobain Abrasives, Inc. Liquid supply assembly
US20080098895A1 (en) * 2006-10-31 2008-05-01 Smc Corporation Ionizer
US7497898B2 (en) * 2006-10-31 2009-03-03 Smc Corporation Ionizer
US7695552B2 (en) * 2007-02-14 2010-04-13 Smc Corporation Ionizer
US20080190294A1 (en) * 2007-02-14 2008-08-14 Smc Corporation Ionizer
US20080217422A1 (en) * 2007-03-09 2008-09-11 Daniel Elden Near Nozzle assembly, delivery system and method for conveying insulation material
US20100224702A1 (en) * 2009-03-09 2010-09-09 Illinois Tool Works Inc. Pneumatic atomization nozzle for web moistening
US20100224123A1 (en) * 2009-03-09 2010-09-09 Illinois Tool Works Inc. Modular nozzle unit for web moistening
US9186881B2 (en) 2009-03-09 2015-11-17 Illinois Tool Works Inc. Thermally isolated liquid supply for web moistening
US20100224703A1 (en) * 2009-03-09 2010-09-09 Illinois Tool Works Inc. Pneumatic Atomization Nozzle for Web Moistening
US8979004B2 (en) * 2009-03-09 2015-03-17 Illinois Tool Works Inc. Pneumatic atomization nozzle for web moistening
US20100224122A1 (en) * 2009-03-09 2010-09-09 Illinois Tool Works Inc. Low pressure regulation for web moistening systems
US9335198B2 (en) 2011-05-06 2016-05-10 Saint-Gobain Abrasives, Inc. Method of using a paint cup assembly
US8944351B2 (en) 2011-05-06 2015-02-03 Saint-Gobain Abrasives, Inc. Paint cup assembly with an outlet valve
US8998018B2 (en) 2011-05-06 2015-04-07 Saint-Gobain Abrasives, Inc. Paint cup assembly with an extended ring
US9586220B2 (en) 2011-06-30 2017-03-07 Saint-Gobain Abrasives, Inc. Paint cup assembly
US10882064B2 (en) 2011-12-30 2021-01-05 Saint-Gobain Abrasives, Inc./Saint-Gobain Abrasifs Convertible paint cup assembly with air inlet valve
US10207284B2 (en) * 2015-05-07 2019-02-19 Boe Technology Group Co., Ltd. Coating machine for applying coating agent
CN107755122A (zh) * 2017-10-20 2018-03-06 鞍钢未来钢铁研究院有限公司 一种冷轧酸洗水基防锈液喷涂量精确控制方法及装置
US20230019937A1 (en) * 2019-12-20 2023-01-19 Saint-Gobain Isover Device for spraying an insulation product
US12090506B2 (en) 2020-07-14 2024-09-17 Techtronic Cordless Gp Powered sprayer

Also Published As

Publication number Publication date
ES285532A1 (es) 1963-08-01
DE1571086A1 (de) 1970-08-13
BE629589A (xx)
GB1010618A (en) 1965-11-24
LU43257A1 (xx) 1963-04-27
NL290138A (xx)
FR1350407A (fr) 1964-04-24
CH412655A (de) 1966-04-30

Similar Documents

Publication Publication Date Title
US3195819A (en) Spray nozzle for coating articles
US2646314A (en) Spray nozzle
US4601921A (en) Method and apparatus for spraying coating material
US3169883A (en) Electrostatic coating methods and apparatus
US2780565A (en) Electrostatic spray coating system and method
US2893894A (en) Method and apparatus for electrostatically coating
US4715535A (en) Powder spray gun
JPH0510144B2 (xx)
US4597533A (en) Electrostatic spraying apparatus
US2894691A (en) Electrostatic deposition
JPH06210199A (ja) 粉体コーティング・ガン用の整形スプレ・ノズル
US3463395A (en) Spray gun nozzle heads
US2794751A (en) Electrostatic depositing method
US2993468A (en) Apparatus for coating with atomized liquid
US4744513A (en) Device and process for the electrostatic coating of articles with fluids
US3093309A (en) Electrostatic coating apparatus of spray-gun type
US2996042A (en) Electrostatic spray coating system
US3224680A (en) Atomizing apparatus having a liquid accumulation cavity
US2730460A (en) Electrostatic method and apparatus
US3049092A (en) Apparatus for the electrostatic coating of articles
CA2179992A1 (en) Spray gun type electrostatic painting apparatus
US9346064B2 (en) Radius edge bell cup and method for shaping an atomized spray pattern
US2782074A (en) Electrostatic spraying apparatus
US2839425A (en) Apparatus and method of coating articles
US2911323A (en) Electrostatic method and apparatus using non-conductive discharge means