CA2018551A1 - Electrostatic spray process and apparatus - Google Patents

Electrostatic spray process and apparatus

Info

Publication number
CA2018551A1
CA2018551A1 CA2018551A CA2018551A CA2018551A1 CA 2018551 A1 CA2018551 A1 CA 2018551A1 CA 2018551 A CA2018551 A CA 2018551A CA 2018551 A CA2018551 A CA 2018551A CA 2018551 A1 CA2018551 A1 CA 2018551A1
Authority
CA
Canada
Prior art keywords
atomising
edges
electrodes
spacing
potential difference
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.)
Granted
Application number
CA2018551A
Other languages
French (fr)
Other versions
CA2018551C (en
Inventor
Zafirios Vachlas
Stephen J. Thorne
Timothy J. Noakes
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.)
Procter and Gamble Co
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of CA2018551A1 publication Critical patent/CA2018551A1/en
Application granted granted Critical
Publication of CA2018551C publication Critical patent/CA2018551C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/087—Arrangements of electrodes, e.g. of charging, shielding, collecting electrodes
    • 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
    • B05B5/0255—Discharge apparatus, e.g. electrostatic spray guns spraying and depositing by electrostatic forces only

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

An electrostatic liquid spraying apparatus has a sprayhead comprising a pair of atomising edges extending side-by-side, liquid feed means to each of the atomising edges and a plurality of field intensifying electrodes extending lengthwise of the atomising edges. A pair of the field intensifying electrodes are associated with each atomising edge with one disposed on either side thereof and forwardly of the associated atomising edge. Electric power supply means impose a potential difference between said atomising edges and said electrodes. In order to achieve satisfactory spraying:
a) the spacing between the atomising edges is in the range, 20-300 mm.
b) the spacing between each of the electrodes and its associated atomising edge is not less than 3 mm. and c) The measurable potential difference between the conductors through which the potential difference is imposed between the atomising edges and the electrodes is in the range 1-3 KV per mm. of the spacing of said electrodes from the atomising edges.
CA002018551A 1989-06-23 1990-06-08 Electrostatic spray process and apparatus Expired - Lifetime CA2018551C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898914506A GB8914506D0 (en) 1989-06-23 1989-06-23 Electrostatic spray process and apparatus
GB8914506.4 1989-06-23

Publications (2)

Publication Number Publication Date
CA2018551A1 true CA2018551A1 (en) 1990-12-23
CA2018551C CA2018551C (en) 2000-03-28

Family

ID=10658980

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002018551A Expired - Lifetime CA2018551C (en) 1989-06-23 1990-06-08 Electrostatic spray process and apparatus

Country Status (9)

Country Link
EP (1) EP0404344A1 (en)
JP (1) JPH0330848A (en)
AU (1) AU5762490A (en)
CA (1) CA2018551C (en)
GB (2) GB8914506D0 (en)
IE (1) IE901842A1 (en)
PT (1) PT94441A (en)
ZA (1) ZA904001B (en)
ZW (1) ZW8490A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0394222B1 (en) * 1987-09-22 1992-02-26 Imperial Chemical Industries Plc Electrostatic spraying apparatus
US5209410A (en) * 1992-03-05 1993-05-11 United Air Specialists, Inc. Electrostatic dispensing nozzle assembly
GB9416581D0 (en) * 1993-09-02 1994-10-12 Ici Plc Electrostatic spraying device
FR2731921B1 (en) * 1995-03-20 1997-04-30 Sames Sa DEVICE FOR ELECTROSTATIC PROJECTION OF COATING PRODUCT
KR100455718B1 (en) * 2000-01-28 2004-11-08 안강호 Electrospray apparatus for guiding sprayed particles without coagulation and sticking
US20080259519A1 (en) * 2004-09-14 2008-10-23 Battelle Memorial Institute Highly-Aqueous, Non-Respirable Aerosols Containing Biologically-Active Ingredients, Method of Making, and Device Therefor
US7360724B2 (en) * 2004-10-20 2008-04-22 The Procter & Gamble Company Electrostatic spray nozzle with internal and external electrodes
US7160391B2 (en) * 2004-10-20 2007-01-09 The Procter & Gamble Company Electrostatic nozzle apparatus
US7455249B2 (en) * 2006-03-28 2008-11-25 Illinois Tool Works Inc. Combined direct and indirect charging system for electrostatically-aided coating system
JP2009268608A (en) * 2008-05-02 2009-11-19 Shintaro Tanaka Body fat decomposition excretion method
JP6473629B2 (en) * 2015-02-09 2019-02-20 アネスト岩田株式会社 Electrostatic spraying equipment
JP6494095B2 (en) * 2015-03-20 2019-04-03 アネスト岩田株式会社 Electrostatic spraying equipment
JP6485951B2 (en) * 2015-03-20 2019-03-20 アネスト岩田株式会社 Electrostatic spray device flow rate adjustment method and electrostatic spray device capable of adjusting the flow rate
HUE061416T2 (en) * 2018-01-12 2023-06-28 Spraying Systems Co Spray nozzle assembly and spray plume shaping method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1958406A (en) * 1926-12-27 1934-05-15 William A Darrah Electrical spraying device
GB8432274D0 (en) * 1984-12-20 1985-01-30 Ici Plc Electrostatic spraying

Also Published As

Publication number Publication date
ZW8490A1 (en) 1991-02-27
EP0404344A1 (en) 1990-12-27
JPH0330848A (en) 1991-02-08
AU5762490A (en) 1991-01-03
CA2018551C (en) 2000-03-28
PT94441A (en) 1992-02-28
GB9011465D0 (en) 1990-07-11
GB8914506D0 (en) 1989-08-09
IE901842A1 (en) 1991-01-02
ZA904001B (en) 1991-04-24
IE901842L (en) 1990-12-23

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Legal Events

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EEER Examination request
MKEX Expiry