GB1037978A - Improvements in or relating to method and apparatus for electrostatic precipitation of coating materials - Google Patents

Improvements in or relating to method and apparatus for electrostatic precipitation of coating materials

Info

Publication number
GB1037978A
GB1037978A GB3695363A GB3695363A GB1037978A GB 1037978 A GB1037978 A GB 1037978A GB 3695363 A GB3695363 A GB 3695363A GB 3695363 A GB3695363 A GB 3695363A GB 1037978 A GB1037978 A GB 1037978A
Authority
GB
United Kingdom
Prior art keywords
nozzle
wires
spray
rings
particles
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
GB3695363A
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.)
KURT MARTIN OESTERLE
Original Assignee
KURT MARTIN OESTERLE
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 KURT MARTIN OESTERLE filed Critical KURT MARTIN OESTERLE
Publication of GB1037978A publication Critical patent/GB1037978A/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
    • B05B5/04—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
    • 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
    • B05B5/0533—Electrodes specially adapted therefor; Arrangements of electrodes

Abstract

1,037,978. Spray-producers. K. M. OESTERLE. Sept. 19, 1963 [Sept. 20, 1962], No. 36953/63. Heading B2F. A method for the electrostatic precipitation of coating material upon an article consists of producing a jet of coating material formed of fine particles of high kinetic energy, combining at least a portion of said particles to form larger particles whereby the speed of the combined particles is slowed down, accelerating the larger particles and conveying them by means of electrostatic forces towards the article to be coated. In the apparatus shown comprising a spray producing atomizer nozzle 1, Fig. 1, a member 3, formed of wire rings 4 interconnected by radial wires 5 upon which a portion of the spray impacts, forms one of the electrodes required to produce an electrostatic field between the atomizer and the article to be coated and is rotatably and axially movably mounted on the nozzles supply tube 2. The rings 4 and wires 5 are mounted in a plane normal to the axis alpha of the atomizer and are spaced from the nozzle 1 by a plurality of support arms 6. In another embodiment the apparatus of Fig. 1 is modified by providing a plurality of pointed electrodes around the nozzle 1. In yet a further construction additional rings 4 are provided, these being placed in planes normal to the axis a between the rings 4 and the nozzle 1 of Fig. 1. In the apparatus of Fig. 4, a portion of the spray impacts upon a member 3 in the form of wire members 9a arranged radially in a plane normal to the axis alpha and spaced from the nozzle 1. Another embodiment, Fig. 6 (not shown), shows a member 3 comprising a grid of cross wires supported by arms 6. The wires 4 and 5 have a circular crosssection but wires of any other suitable sectionsuch as illustrated in Figs. 5a-5f (not shown)- may be used. Fig. 7 shows an embodiment in which a part of the spray impacts upon three groups of wires 15 arranged in equi-angularly spaced relationship on a cover plate 13 fitted on a rotatably and axially movably mounted cone member 12. Fig. 8 (not shown) shows diagrammatically examples of selected potential differences to be applied at the electrodes of the apparatus. The coating material may be a liquid or a powder whilst the member 3 or its equivalent in all the embodiments is rotated about the fixed nozzle 1 by means not shown.
GB3695363A 1962-09-20 1963-09-19 Improvements in or relating to method and apparatus for electrostatic precipitation of coating materials Expired GB1037978A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1112062A CH400852A (en) 1962-09-20 1962-09-20 Method and apparatus for electrostatically depositing a liquid coating material on an object

Publications (1)

Publication Number Publication Date
GB1037978A true GB1037978A (en) 1966-08-03

Family

ID=4370279

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3695363A Expired GB1037978A (en) 1962-09-20 1963-09-19 Improvements in or relating to method and apparatus for electrostatic precipitation of coating materials

Country Status (7)

Country Link
BE (1) BE637470A (en)
CA (1) CA721234A (en)
CH (1) CH400852A (en)
FR (1) FR1370305A (en)
GB (1) GB1037978A (en)
LU (1) LU44030A1 (en)
SE (1) SE319709B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1418009A2 (en) * 2002-11-06 2004-05-12 E.I.Du pont de nemours and company Rotatable electrode ring and use thereof in electrostatically assisted high-speed rotary application of spray coating agents
US7966967B2 (en) 2004-09-17 2011-06-28 Toyota Jidosha Kabushiki Kaisha Electrostatic coating system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4341815A (en) * 1979-03-06 1982-07-27 Caterpillar Tractor Co. Method of electrostatically coating an article with paint
US4343828A (en) * 1980-12-24 1982-08-10 Caterpillar Tractor Co. Electrodynamic painting system and method
US5711489A (en) * 1994-08-18 1998-01-27 Nihon Parkerizing Co., Ltd. Electrostatic powder coating method and apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1418009A2 (en) * 2002-11-06 2004-05-12 E.I.Du pont de nemours and company Rotatable electrode ring and use thereof in electrostatically assisted high-speed rotary application of spray coating agents
EP1418009A3 (en) * 2002-11-06 2007-03-14 E.I.Du pont de nemours and company Rotatable electrode ring and use thereof in electrostatically assisted high-speed rotary application of spray coating agents
US7966967B2 (en) 2004-09-17 2011-06-28 Toyota Jidosha Kabushiki Kaisha Electrostatic coating system

Also Published As

Publication number Publication date
SE319709B (en) 1970-01-19
LU44030A1 (en) 1963-09-09
CA721234A (en) 1965-11-09
CH400852A (en) 1965-10-15
FR1370305A (en) 1964-08-21
BE637470A (en) 1964-01-16

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