US2554829A - Spray device - Google Patents

Spray device Download PDF

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Publication number
US2554829A
US2554829A US61877A US6187748A US2554829A US 2554829 A US2554829 A US 2554829A US 61877 A US61877 A US 61877A US 6187748 A US6187748 A US 6187748A US 2554829 A US2554829 A US 2554829A
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US
United States
Prior art keywords
gas
chamber
spray
burner
jet
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
US61877A
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English (en)
Inventor
Jeurling Sten Anders Wilhelm
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.)
SUPER SPRAY PAINT CORP
SUPER-SPRAY PAINT Corp
Original Assignee
SUPER SPRAY PAINT CORP
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 SUPER SPRAY PAINT CORP filed Critical SUPER SPRAY PAINT CORP
Application granted granted Critical
Publication of US2554829A publication Critical patent/US2554829A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/16—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 incorporating means for heating or cooling the material to be sprayed
    • B05B7/1606—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 incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air
    • B05B7/1613—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 incorporating means for heating or cooling the material to be sprayed the spraying of the material involving the use of an atomising fluid, e.g. air comprising means for heating the atomising fluid before mixing with the material to be sprayed
    • 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
    • B05B7/16—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 incorporating means for heating or cooling the material to be sprayed
    • B05B7/20—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion
    • B05B7/201—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 incorporating means for heating or cooling the material to be sprayed by flame or combustion downstream of the nozzle

Definitions

  • This invention relates to spray devices for lquied material, such as paint, and more particularly to such devices having a nozzle unit for the material to be sprayed and gaseous spray pressure medium for spraying said material and laterally of the axis of said nozzle a gas burner having perennials for ejecting gas to form flames substantially in the same direction as that of the sprayed material so as more or less completely to surround the jet of sprayed material. Due to the considerable speed of the sprayed jet of the liquied material there is a tendency of establishing a vacuum round the jet and in consequence thereof the flames will decline towards said jet and may converge too much and even burn the jet. a
  • the primary object of the invention is therefore to eliminate the vacuum between the jet of liquied material and the ames and a second object is to provide means for performing such eliminating without unduly cooling the liquied material or the thing to be sprayed.
  • a further object is to provide means for controlling the degree of elimination of the vacuum, at least partially for the purpose of influencing the direction of the flames. It is also an object of the invention so to design the spray device as to prevent the combustible burner gases from being intermingled with the spray pressure medium or any other gases in channels of the device containing oxygen. A still further object is to provide a sprayer having a readily removable or exchangeable burner so as to enable one and the same spray gun to be used for different purposes.
  • At least one conduit is provided to connect the space between the nozzle unit for the liquied material and the orifices of the burner with the surrounding atmosphere or with a source of pressure gas, at least in the latter case means being provided for heating said pressure gas.
  • FIG. 1 is a schematic side view partially in section, of a nozzle head in accordance with my present invention.
  • a central bore or recess 4 is provided to give room for the nozzle unit which will be described presently.
  • another recess 2 is another recess 2 and between this recess and the bore 4 there is a further recess 3.
  • a tube Il f for heated paint is attached to the rear side of the bore 4 and a flanged nozzle body 5 is partly inserted into the inner end of the tube Il, the flange 1 of said nozzle body being seated on corresponding shoulder in the bore 4.
  • the body 5 has a central paint chamber 6 having a front orifice I5 in an extended portion of body 5.
  • the various recesses 2, 3 and 4 are closed at the front side by a cover 9 secured to the body I by means of threads II, so as to form from said recesses a burner gas chamber 2, a protection gas chamber 3 Yand a spray gas chamber 8.
  • This cover 9 is provided with a series of orifices I2 along the burner chamber 2 and orifices I3 along the protection gas chamber 3.
  • the various gas chambers 2, 3 and 8 are connected to corresponding supply conduits I8, I9 and 2D, respectively, for supplying burner gas or air-gas mixture, protection gas and spray pressure gas, respectively.
  • a heating member is provided at least in the protection gas conduit I9 as indicated by the electrical resistance I0, but preferably also in the pressure medium conduit 2i! as indicated by I0. It is to be understood that the invention is by no meansnrestricted to electrical heating means but may as Well make use of any practical heating means, such as a steam jacket or a gas burner.
  • the heating member may preferably be arranged in or about the source of protecting gas or spray gas, respectively.
  • All the conduits II--2Il leading to the nozzle head but in particular the protection gas conduit I9 may be provided with a control valve 2
  • the nozzle unit 5, III-I6 may have any suitable form for providing a paint jet of any desired shape.
  • circular gifts I5 and I6 will form a circular jet and adequate means, Well known to those skilled in the art, will render a more or less flattened jet.
  • the chambers 2 and 3 are preferably shaped so as to correspond to the shape of the paint jet. The distances between, on the one hand, the orifices I2 and I3 and, on the other hand, the paint jet will in such case be substantially equal.
  • the chambers 2 and 3 are preferably Aannular and the corresponding re'- Dors are then easily turned in the nozzle block I.
  • the chambers 2 and 3 may be more or less rectilinear.
  • Burner gas which may be an appropriate lmix'- ture of combustible gas and air, .is simultaneously admitted to chamber 2 through conduit I8 and the gas is ignited at the orifices I2. Protection gas is supplied through conduit I9 to vchamber f3 and the valve 2I is regulated until the desired direction of the flames from the orifices I2 ⁇ will be obtained.
  • the heating member I and, if desired, the heating member I0 are regulated according to the prevailing conditions. .By suitable setting of the valves 2l and.
  • a spray vdevice having a nozzle unit for liquied material to be sprayed and ⁇ for gaseous spray pressure 'medium for spraying said material, laterally of the axis of said nozzle a gas' burner having perennials for ejecting flames substantially in the direction of the axis of said nozzle, a source of protection gas, at least one 5 conduit connecting the space between said nozzle @d 'said orifices with said source, 'and means for heating said .protection gas.
  • a spray device as claimed in claim 1 characterized in means in said conduit for controlling the flow of gas therein.
  • -A spray device comprising a block, in said block at the Icentre a spray material chamber and a spray medium chamber, laterally of said chambers a protection gas chamber and further laterally of the last named chamber a burner gas chamber, all said chambers having supply conduits and forwardly directed exit orifices, at least the supply conduit -of said protectiongas chamber being provided with gas heating means.
  • a spray device vas claimed in claim 4 comprising in at least the ⁇ supply conduit of said protection gas 'chamber a control valve.
  • a spray device as claimed in vclaim il comprising a vnozzle head and yin said head a distributionchamber Ifor combustiblegas and a distribution chamber for pressure medium, a centinual impervious wall being :arranged between said 35 chambers.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Nozzles (AREA)
US61877A 1947-12-01 1948-11-24 Spray device Expired - Lifetime US2554829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE651235X 1947-12-01

Publications (1)

Publication Number Publication Date
US2554829A true US2554829A (en) 1951-05-29

Family

ID=20314066

Family Applications (1)

Application Number Title Priority Date Filing Date
US61877A Expired - Lifetime US2554829A (en) 1947-12-01 1948-11-24 Spray device

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US (1) US2554829A (fr)
FR (1) FR975400A (fr)
GB (1) GB651235A (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2697025A (en) * 1950-12-12 1954-12-14 Gen Electric Method and apparatus for coating hollow glassware
US3180312A (en) * 1961-09-20 1965-04-27 Associated Protective Coatings Apparatus for internally coating small diameter pipe
US3460764A (en) * 1964-08-13 1969-08-12 Neil R Wallis Coating apparatus
US4179068A (en) * 1975-07-24 1979-12-18 National Research Development Corporation Liquid spray devices
US20090179085A1 (en) * 2008-01-10 2009-07-16 Applied Materials, Inc. Heated showerhead assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE518222A (fr) * 1952-03-29

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410532A (en) * 1944-03-04 1946-11-05 Joseph D Tessier Appliance for paint sprayers
US2438471A (en) * 1944-06-05 1948-03-23 Briggs Mfg Co Spraying apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2410532A (en) * 1944-03-04 1946-11-05 Joseph D Tessier Appliance for paint sprayers
US2438471A (en) * 1944-06-05 1948-03-23 Briggs Mfg Co Spraying apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2697025A (en) * 1950-12-12 1954-12-14 Gen Electric Method and apparatus for coating hollow glassware
US3180312A (en) * 1961-09-20 1965-04-27 Associated Protective Coatings Apparatus for internally coating small diameter pipe
US3460764A (en) * 1964-08-13 1969-08-12 Neil R Wallis Coating apparatus
US4179068A (en) * 1975-07-24 1979-12-18 National Research Development Corporation Liquid spray devices
US20090179085A1 (en) * 2008-01-10 2009-07-16 Applied Materials, Inc. Heated showerhead assembly
US8876024B2 (en) * 2008-01-10 2014-11-04 Applied Materials, Inc. Heated showerhead assembly
US9570275B2 (en) 2008-01-10 2017-02-14 Applied Materials, Inc. Heated showerhead assembly

Also Published As

Publication number Publication date
FR975400A (fr) 1951-03-05
GB651235A (en) 1951-03-14

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