GB1355075A - Electrostatic spray coating apparatus - Google Patents

Electrostatic spray coating apparatus

Info

Publication number
GB1355075A
GB1355075A GB1348271*[A GB1348271A GB1355075A GB 1355075 A GB1355075 A GB 1355075A GB 1348271 A GB1348271 A GB 1348271A GB 1355075 A GB1355075 A GB 1355075A
Authority
GB
United Kingdom
Prior art keywords
electrode
corona discharge
terminal end
liquid
nozzle assembly
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
GB1348271*[A
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.)
Electrogasdynamics Inc
Original Assignee
Electrogasdynamics Inc
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 Electrogasdynamics Inc filed Critical Electrogasdynamics Inc
Publication of GB1355075A publication Critical patent/GB1355075A/en
Expired 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
    • 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
    • B05B5/053—Arrangements for supplying power, e.g. charging power
    • B05B5/0531—Power generators
    • 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
    • B05B5/035—Discharge apparatus, e.g. electrostatic spray guns characterised by gasless spraying, e.g. electrostatically assisted airless spraying

Abstract

1355075 Electrostatic spray coating ELEC TROGASDYNAMICS Inc 6 May 1971 [6 May 1970] 13482/71 Heading B2F Liquid coating material is hydraulically displaced, by an atomising nozzle assembly 30, 34, 36, through a locus of atomisation to convert it from a coherent liquid into a particulate spray by interaction with air, a corona discharge current is then directed from a primary corona discharge electrode 84 through the moving coating material at a location intermediate the point of liquid emission and the point of complete atomisation and in a direction substantially transverse to the direction of advance of the material, to be collected by an electrically floating electrode 90. In the figure, electrode 84 is electrically connected, via conductive components of the nozzle assembly, to an electrogasdynamic generator 18 to emit a negative corona discharge from the exposed terminal end 88, while floating electrode 90 has two terminal ends, one, 92, positioned substantially diametrically opposite, slightly downstream of terminal end 88 to collect the charge from electrode 84, and the other, 94, extending either rearwardly as shown or forwardly as in Figs. 2 and 4 (not shown) to form a tertiary corona discharge to provide a current flow to earth. This terminal end is preferably disposed such that in use the distance between it and the nearest electrical earth is not less than 10% of the distance between it and the workpiece being coated.
GB1348271*[A 1970-05-06 1971-05-06 Electrostatic spray coating apparatus Expired GB1355075A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3514570A 1970-05-06 1970-05-06

Publications (1)

Publication Number Publication Date
GB1355075A true GB1355075A (en) 1974-06-05

Family

ID=21880932

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1348271*[A Expired GB1355075A (en) 1970-05-06 1971-05-06 Electrostatic spray coating apparatus

Country Status (8)

Country Link
US (1) US3693877A (en)
JP (1) JPS5438132B1 (en)
CA (1) CA930258A (en)
DE (1) DE2121986C3 (en)
FR (1) FR2091315A5 (en)
GB (1) GB1355075A (en)
IT (1) IT944667B (en)
SE (1) SE385549B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3767115A (en) * 1971-12-27 1973-10-23 Graco Inc Electrostatic spray gun apparatus
US3794243A (en) * 1972-04-26 1974-02-26 Nordson Corp Electrostatic spray apparatus and method
US3907202A (en) * 1973-05-10 1975-09-23 Skm Sa Spray-gun apparatus for atomizing paint or similar liquids
HU175744B (en) * 1976-11-09 1980-10-28 Hajtomuevek Es Festoberendeze Device for electrostatic spreading of increased efficiency particularly for water-soluble colors
AT401627B (en) * 1987-03-09 1996-10-25 Lisec Peter DEVICE FOR PRODUCING SPACER FRAME FOR INSULATING GLASS DISC
JP6319233B2 (en) * 2015-08-28 2018-05-09 トヨタ自動車株式会社 Electrostatic atomization type coating apparatus and coating method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659841A (en) * 1948-08-03 1953-11-17 Georges Truffaut Ets Means for electrifying pulverulent materials
US3000576A (en) * 1960-03-01 1961-09-19 Spee Flo Company Spray gun
US3141259A (en) * 1960-10-26 1964-07-21 Willis R Winters Agricultural dusting
FR1350407A (en) * 1962-03-14 1964-04-24 Nippon Kogei Kogyo Co Spray nozzle for spraying plaster
US3195264A (en) * 1963-10-01 1965-07-20 Robert P Bennett Nozzle for electrostatic dusting devices
US3471089A (en) * 1968-01-10 1969-10-07 Vilbiss Co The De Electrostatic spray gun
US3587967A (en) * 1970-01-08 1971-06-28 Ransburg Electro Coating Corp Spray coating apparatus

Also Published As

Publication number Publication date
CA930258A (en) 1973-07-17
US3693877A (en) 1972-09-26
DE2121986C3 (en) 1982-01-21
IT944667B (en) 1973-04-20
JPS5438132B1 (en) 1979-11-19
SE385549B (en) 1976-07-12
DE2121986B2 (en) 1981-04-30
DE2121986A1 (en) 1971-11-25
FR2091315A5 (en) 1972-01-14

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee