GB793298A - Improvements in electrostatic spray coating apparatus - Google Patents

Improvements in electrostatic spray coating apparatus

Info

Publication number
GB793298A
GB793298A GB27319/56A GB2731956A GB793298A GB 793298 A GB793298 A GB 793298A GB 27319/56 A GB27319/56 A GB 27319/56A GB 2731956 A GB2731956 A GB 2731956A GB 793298 A GB793298 A GB 793298A
Authority
GB
United Kingdom
Prior art keywords
gun
spray
electrode
pict
iii
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
GB27319/56A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB793298A publication Critical patent/GB793298A/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
    • B05B5/0533—Electrodes specially adapted therefor; Arrangements of electrodes
    • B05B5/0535—Electrodes specially adapted therefor; Arrangements of electrodes at least two electrodes having different potentials being held on the discharge apparatus, one of them being a charging electrode of the corona type located in the spray or close to it, and another being of the non-corona type located outside of the path for the material
    • 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
    • B05B5/053—Arrangements for supplying power, e.g. charging power
    • B05B5/0533—Electrodes specially adapted therefor; Arrangements of 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
    • B05B5/16—Arrangements for supplying liquids or other fluent material

Landscapes

  • Electrostatic Spraying Apparatus (AREA)

Abstract

<PICT:0793298/III/1> <PICT:0793298/III/2> <PICT:0793298/III/3> <PICT:0793298/III/4> Electrostatic spray coating apparatus includes a pneumatic spray gun 12 having an end cap 54 of electrically non-conducting material through which the spray issues, a discharge electrode 16 and a current collecting electrode 14 between which the spray stream passes. The spray is thereby electrically charged and the insulated cap 54 reduces the danger of sparking. Electrode 16 consists of a number of pointed rods 80 in fan-shaped array secured to a head 86 at the end of a supporting rod 88, and the electrode 14 comprises a flat plate with curved edges. The gun and electrodes are supported on a mounting 10 adjustably arranged on a stand 30 by a bolt 28. A rod interconnects the inner ends of the electrode rods 80 and is attached to a socket 84 which receives a plug 94; the latter is connected to a high-voltage lead 91 extending through the rod 88 which is detachably attached to the mounting 10 by a spring clip. The gun, Fig. 5, has a spring control needle 130 and a tip 56, through which the spray liquid flows, both formed of nylon; air flows through the cap 54 and passages 59 to confine the spray into a narrow band. A conductor 106, Fig. 7, connects the mounting 10, gun and electrode 14 to the positive terminal, maintained at or near zero potential, of a power supply unit 92. The cable 91 is connected to the high negative potential terminal of the unit. A low-voltage supply feeds the unit via normally open contacts 112, 114 which are closed by a coil 115 when spraying is commenced, and the normally open contacts 120 of an airflow-operated switch 122 are closed. A source of high-pressure air 126 feeds the gun through the switch 122 which, when operated, retracts the gun needle 130 and admits spray material to the gun from a reservoir 132 maintained under slight pressure. An atomizing air source 136 is also connected to the gun. Workpieces 142 to be coated are carried past the gun on an electrically earthed conveyer 144.
GB27319/56A 1955-11-30 1956-09-06 Improvements in electrostatic spray coating apparatus Expired GB793298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US549983A US2890388A (en) 1955-11-30 1955-11-30 Electrostatic spray charger

Publications (1)

Publication Number Publication Date
GB793298A true GB793298A (en) 1958-04-16

Family

ID=24195233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27319/56A Expired GB793298A (en) 1955-11-30 1956-09-06 Improvements in electrostatic spray coating apparatus

Country Status (4)

Country Link
US (1) US2890388A (en)
DE (1) DE1131125B (en)
FR (1) FR1161589A (en)
GB (1) GB793298A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025549A1 (en) * 2006-06-01 2007-12-06 Eisenmann Lacktechnik Gmbh & Co. Kg Valve used in connection with application device standing on electrical potential, has valve housing, valve spindle with free end and another free end mounted displaceable between closing position and opening position

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1225523B (en) * 1959-12-13 1966-09-22 Escher Wyss Gmbh Electrostatic applicator spray device
US3169882A (en) * 1960-10-05 1965-02-16 Ransburg Electro Coating Corp Electrostatic coating methods and apparatus
US3131131A (en) * 1962-04-03 1964-04-28 Socony Mobil Oil Co Inc Electrostatic mixing in microbial conversions
US3521125A (en) * 1967-01-16 1970-07-21 Robert H Nelson Electrostatic crop dusting apparatus
US3797739A (en) * 1970-05-06 1974-03-19 Electrogasdynamics Method for electrostatically depositing a fluid
US3656455A (en) * 1970-08-26 1972-04-18 Tamotsu Watanabe Method and apparatus for impregnating moving paper with moisture
BE791343A (en) * 1971-11-16 1973-03-01 Nordson Corp ELECTROSTATIC SPRAYER
DE7401584U (en) * 1973-04-06 1974-08-22 Mueller E Kg Device for the electrostatic coating of objects with liquid or powdery material
DE2412131C3 (en) * 1974-03-13 1982-07-15 Ernst Mueller Gmbh & Co, 7057 Winnenden Device for the electrostatic coating of objects with liquid or powder coating material
DE3709508A1 (en) * 1987-03-23 1988-10-06 Behr Industrieanlagen Apparatus for the electrostatic coating of workpieces
EP0283918B1 (en) * 1987-03-23 1991-07-10 Behr Industrieanlagen GmbH &amp; Co. Device for electrostatic coating of objects
US5086972A (en) * 1990-08-01 1992-02-11 Hughes Aircraft Company Enhanced electrostatic paint deposition method and apparatus
JP3322100B2 (en) * 1995-11-09 2002-09-09 日産自動車株式会社 Rotary atomizing electrostatic coating equipment
US7187534B2 (en) * 2002-08-29 2007-03-06 Xerox Corporation Uniform charge device with reduced edge effects
JP4445830B2 (en) * 2004-10-14 2010-04-07 ランズバーグ・インダストリー株式会社 Electrostatic sprayer
US7455249B2 (en) 2006-03-28 2008-11-25 Illinois Tool Works Inc. Combined direct and indirect charging system for electrostatically-aided coating system
US20080011333A1 (en) * 2006-07-13 2008-01-17 Rodgers Michael C Cleaning coating dispensers
US7520450B2 (en) * 2006-10-10 2009-04-21 Illinois Tool Works Inc. Electrical connections for coating material dispensing equipment
GB0625583D0 (en) * 2006-12-21 2007-01-31 Itw Ltd Paint spray apparatus
US20090020626A1 (en) * 2007-07-16 2009-01-22 Illinois Tool Works Inc. Shaping air and bell cup combination
US8096264B2 (en) * 2007-11-30 2012-01-17 Illinois Tool Works Inc. Repulsion ring
US20090314855A1 (en) * 2008-06-18 2009-12-24 Illinois Tool Works Inc. Vector or swirl shaping air
US8893990B2 (en) * 2010-02-26 2014-11-25 Finishing Brands Holdings Inc. Electrostatic spray system
US8985051B2 (en) * 2011-12-15 2015-03-24 Honeywell Asca Inc. Apparatus for producing a spray of changed droplets of aqueous liquid
DE202012012185U1 (en) * 2012-12-20 2014-03-25 Thomas Mayer Compressed gas treatment system for compressed gas-operated coating plants and compressed gas-operated coating plant
JP6104640B2 (en) 2013-03-01 2017-03-29 住友化学株式会社 Electrostatic spraying equipment
BR102017026883A2 (en) * 2017-12-13 2019-06-25 Tecnopampa Indústria De Máquinas Ltda PROLONGER ISOLATED FOR SPRAYING WITH ELECTROSTATIC ASSISTANCE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT14566B (en) * 1900-04-09 1903-12-28 John Francis Cooley Method and device for the production of silk-like, shiny spun fibers
US1346811A (en) * 1918-06-08 1920-07-20 Diebold Fritz Process and apparatus for atomizing liquid substances into very small particles
US1958406A (en) * 1926-12-27 1934-05-15 William A Darrah Electrical spraying device
US2525347A (en) * 1945-02-09 1950-10-10 Westinghouse Electric Corp Electrostatic apparatus
GB670914A (en) * 1949-03-25 1952-04-30 Gen Motors Corp Improved spray coating apparatus
GB679751A (en) * 1949-03-25 1952-09-24 Gen Motors Corp Improved method of and apparatus for spray coating articles
US2710773A (en) * 1952-08-27 1955-06-14 Sedlacsik John Electrostatic spray coating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006025549A1 (en) * 2006-06-01 2007-12-06 Eisenmann Lacktechnik Gmbh & Co. Kg Valve used in connection with application device standing on electrical potential, has valve housing, valve spindle with free end and another free end mounted displaceable between closing position and opening position
DE102006025549B4 (en) 2006-06-01 2019-04-04 Eisenmann Se Valve

Also Published As

Publication number Publication date
FR1161589A (en) 1958-09-02
US2890388A (en) 1959-06-09
DE1131125B (en) 1962-06-07

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