GB1026413A - Improvements in electrostatic spraying apparatus - Google Patents

Improvements in electrostatic spraying apparatus

Info

Publication number
GB1026413A
GB1026413A GB724463A GB724463A GB1026413A GB 1026413 A GB1026413 A GB 1026413A GB 724463 A GB724463 A GB 724463A GB 724463 A GB724463 A GB 724463A GB 1026413 A GB1026413 A GB 1026413A
Authority
GB
United Kingdom
Prior art keywords
spray
air
apparatus
pintle
paint
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
Application number
GB724463A
Inventor
O B E Reginald Percy Fraser
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.)
MACHINES ELECTROSTATIQUES SA
Original Assignee
MACHINES ELECTROSTATIQUES SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MACHINES ELECTROSTATIQUES SA filed Critical MACHINES ELECTROSTATIQUES SA
Priority to GB722463A priority Critical patent/GB1004246A/en
Publication of GB1026413A publication Critical patent/GB1026413A/en
Application status is Expired legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHER TREATMENTS
    • C21D8/00Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/005Modifying the physical properties by deformation combined with, or followed by, heat treatment of ferrous alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/025Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/03Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/10Spray pistols; Apparatus for discharge producing a swirling discharge
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05BSPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02Spray pistols; Apparatus for discharge
    • B05B7/06Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/062Spray 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
    • B05B7/066Spray 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 with an inner liquid outlet surrounded by at least one annular gas outlet
    • B05B7/067Spray 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 with an inner liquid outlet surrounded by at least one annular gas outlet the liquid outlet being annular

Abstract

1, 026, 413. Spray-producers. DE MACHINES ELECTROSTATIQUES. S.A. Feb. 11,1964 [Feb. 22, 1963], No. 7244/63. Heading B2F. An electrostatic spraying apparatus, suitable for spraying a liquid such as paint, is adapted to produce either a low velocity wide angle spray, the dispersion of the spray being aided by a swirling stream of air, or a high velocity narrow angle spray, and includes means for changing from one type of spray to the other whilst the apparatus is in operation. In the embodiment of Fig. 1 paint is fed through a passage 7, along passages between fins 12 while in contact with a material 11 of high resistivity on the internal surface of a hollow electrode 6, and through the gap surrounding the head of a pintle 8 which is spaced from a conical seating recess 10. Compressed air is fed through a passage 13 to an annular chamber 14, through swirl slots 19a and out through an annular opening 26 so that it distributes the paint at a spray angle of between 70 and 140 degrees and at a velocity of about 1Oft/sec When an outer portion 1 of the apparatus is moved with respect to an inner portion 5, Fig. 2 (not shown) valve surfaces 17 and 18 are separated and the compressed air by-passes the slots 19a and issues from the opening 26 as a high velocity non-swirling stream, the spray angle being between 17 and 40 degrees and the spray velocity being 40 ft/sec. Fig. 4 (not shown) depicts an arrangement in which the pintle is controlled by an operating rod and tangential passages leading into an annular cavity produce a swirling stream of air from the opening 26. A high D.C.potential is applied to a member surrounding and spaced from the pintle and paint is fed into the apparatus through a flexible tube. Initial movement of the rod displaces the conical head of the pintle and allows the flow of paint which is distributed by the air stream. Further movement of the rod moves the said member to the right thereby decreasing the opening 26 and producing an air stream of higher velocity. The apparatus of Fig. 5 (not shown) includes a valve operable from the gun butt to control the flow of air through a first passage from which it is fed via tangential passages to the nozzle 26 and emerges as a swirling spray, and through a second passage which produces a high velocity stream of air from the nozzle 26. Fig. 6 (not shown) is provided with an air supply similar to that of Fig. 5 but the liquid supply is provided centrally of the apparatus and the pintle is eliminated.
GB724463A 1963-02-22 1963-02-22 Improvements in electrostatic spraying apparatus Expired GB1026413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB722463A GB1004246A (en) 1963-02-22 1963-02-22 Improvements in or relating to the heat treatment of steel

Publications (1)

Publication Number Publication Date
GB1026413A true GB1026413A (en) 1966-04-20

Family

ID=9829015

Family Applications (2)

Application Number Title Priority Date Filing Date
GB724463A Expired GB1026413A (en) 1963-02-22 1963-02-22 Improvements in electrostatic spraying apparatus
GB722463A Expired GB1004246A (en) 1963-02-22 1963-02-22 Improvements in or relating to the heat treatment of steel

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB722463A Expired GB1004246A (en) 1963-02-22 1963-02-22 Improvements in or relating to the heat treatment of steel

Country Status (4)

Country Link
US (1) US3317138A (en)
DE (1) DE1577919C3 (en)
FR (1) FR1394834A (en)
GB (2) GB1026413A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659151A (en) * 1968-12-17 1972-04-25 Tunzini Sames Apparatus for covering an object with a layer of powder

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1143839A (en) * 1965-10-15
US3700168A (en) * 1966-04-28 1972-10-24 Ransburg Electro Coating Corp Spray coating apparatus
US3448925A (en) * 1966-10-21 1969-06-10 Turco Mfg Co Air spray gun for electrostatic coating systems
US3641971A (en) * 1967-09-01 1972-02-15 Arvid C Walberg Apparatus for preventing arcing in an electrostatic coating system
US3471089A (en) * 1968-01-10 1969-10-07 Vilbiss Co The De Electrostatic spray gun
US3645447A (en) * 1968-12-31 1972-02-29 Electrogasdynamics Electrostatic paint spray system
US3545208A (en) * 1969-01-15 1970-12-08 Nasa Annular slit colloid thrustor
US3521815A (en) * 1969-05-07 1970-07-28 Imre Szasz Guns for the electrostatic spray coating of objects with a powder
US3591080A (en) * 1969-09-15 1971-07-06 Champion Spark Plug Co Electrostatic spray gun
US3653592A (en) * 1970-05-07 1972-04-04 Electrogasdynamics Electrostatic spray gun construction
SE386841B (en) * 1973-04-19 1976-08-23 Atlas Copco Ab Electrostatic fergspruta
SE392575B (en) * 1973-10-04 1977-04-04 Atlas Copco Ab Electrostatic fergspruta
US4004733A (en) * 1975-07-09 1977-01-25 Research Corporation Electrostatic spray nozzle system
JPS6113867B2 (en) * 1975-10-03 1986-04-16 Senichi Masuda
US4079894A (en) * 1976-07-14 1978-03-21 Nordson Corporation Electrostatic spray coating gun
US4497447A (en) * 1983-05-23 1985-02-05 Graco, Inc. Energy damping device for spray gun
DD232595A3 (en) * 1984-02-08 1986-02-05 Verkehrswesen Hochschule Device for electrokinetic charging of powder-fused substances
US4630777A (en) * 1984-02-27 1986-12-23 Nordson Corporation Powder spray gun
DE3600920C2 (en) * 1986-01-15 1990-02-08 Mann, Siegfried, 6120 Michelstadt, De
US4784331A (en) * 1987-05-27 1988-11-15 Nordson Corporation Electrostatic spray gun device and cable assembly
DE3720200A1 (en) * 1987-06-16 1988-12-29 Ransburg Gmbh Spray coating with a rotationsspruehorgan
US4811898A (en) * 1987-09-21 1989-03-14 Nordson Corporation Electrostatic powder spray gun with adjustable deflector and electrostatic shield
US5044558A (en) * 1989-05-09 1991-09-03 Halliburton Company Burner nozzle with replaceable air jetting assembly
US6460787B1 (en) * 1998-10-22 2002-10-08 Nordson Corporation Modular fluid spray gun
DE10217653A1 (en) * 2002-04-19 2003-12-11 Itw Gema Ag spray coater
EP1658144A1 (en) * 2003-08-18 2006-05-24 Nordson Corporation Wireless operator interface for material application system
JP6112130B2 (en) * 2015-03-25 2017-04-12 トヨタ自動車株式会社 Electrostatic nozzle, discharge device, and method for manufacturing semiconductor module
US20190153624A1 (en) * 2017-11-21 2019-05-23 Kao Corporation Electrospinning apparatus and system and method thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1401880A (en) * 1920-09-04 1921-12-27 W L Fleisher & Co Inc Nozzle
US1531986A (en) * 1924-04-02 1925-03-31 Shelburne Augustine Air-brush nozzle
US1736768A (en) * 1926-07-03 1929-11-26 Carle D Boynton Gun for blowing asphalt and the like
US2530206A (en) * 1942-10-31 1950-11-14 Colorator Ab Spray gun
US2373595A (en) * 1943-03-15 1945-04-10 Devilbiss Co Spray nozzle
US2574879A (en) * 1949-02-01 1951-11-13 Lundberg Kurt Hugo Folke Burner for liquid and gaseous fuels
US2643916A (en) * 1949-04-25 1953-06-30 Braun & Co C F Fuel burner
US2754225A (en) * 1951-11-22 1956-07-10 Martin Von Schulthess Method of spray-coating with metals
US2904262A (en) * 1954-11-04 1959-09-15 Vilbiss Co Spray gun
US2894691A (en) * 1955-01-11 1959-07-14 Sedlacsik John Electrostatic deposition
GB888540A (en) * 1958-08-25 1962-01-31 Eizo Nakaya Coating device
US3056557A (en) * 1959-07-16 1962-10-02 Arvid C Walberg Spray gun for electrostatic coating
NL269353A (en) * 1959-12-08 1900-01-01
US3219276A (en) * 1962-10-16 1965-11-23 Edward O Norris Plural nozzles having intersecting spray and control therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3659151A (en) * 1968-12-17 1972-04-25 Tunzini Sames Apparatus for covering an object with a layer of powder

Also Published As

Publication number Publication date
FR1394834A (en) 1965-04-09
GB1004246A (en) 1965-09-15
DE1577919B2 (en) 1976-02-26
DE1577919C3 (en) 1981-10-29
US3317138A (en) 1967-05-02
DE1577919A1 (en) 1971-12-16

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