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EP0236795A3 - Electrostatic spray device for coating powder - Google Patents

Electrostatic spray device for coating powder Download PDF

Info

Publication number
EP0236795A3
EP0236795A3 EP87102179A EP87102179A EP0236795A3 EP 0236795 A3 EP0236795 A3 EP 0236795A3 EP 87102179 A EP87102179 A EP 87102179A EP 87102179 A EP87102179 A EP 87102179A EP 0236795 A3 EP0236795 A3 EP 0236795A3
Authority
EP
European Patent Office
Prior art keywords
gas
powder
channel
electrode
spray opening
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
EP87102179A
Other languages
German (de)
Other versions
EP0236795B1 (en
EP0236795A2 (en
Inventor
Karl Buschor
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.)
Gema Switzerland GmbH
Original Assignee
Gema Switzerland GmbH
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6296271&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0236795(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Gema Switzerland GmbH filed Critical Gema Switzerland GmbH
Priority to AT87102179T priority Critical patent/ATE55283T1/en
Publication of EP0236795A2 publication Critical patent/EP0236795A2/en
Publication of EP0236795A3 publication Critical patent/EP0236795A3/en
Application granted granted Critical
Publication of EP0236795B1 publication Critical patent/EP0236795B1/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
    • B05B5/025—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
    • B05B5/032—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying for spraying particulate materials

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Paints Or Removers (AREA)
  • Manufacturing Of Micro-Capsules (AREA)

Abstract

An electrostatic spray device for coating powder has a powder channel, the downstream end of which has a spray opening for the spraying of the coating powder. At least one gas channel with at least one gas outlet opening is arranged substantially in the radial center of the powder channel upstream of its spray opening, the gas outlet discharging axially in the direction toward the spray opening. At least one electrode, around which gas from the gas channel flows, is located in the gas outlet opening, the downstream electrode end of the electrode terminating substantially at the downstream end thereof. Within the powder channel, directly in front of its spray opening, a funnel-shaped powder channel section is provided for compacting the powder concentration. The gas stream injects electric charges into this section, which the stream of gas has taken up from the electrode. The spray opening preferably has the shape of a slot.
EP87102179A 1986-03-13 1987-02-16 Electrostatic spray device for coating powder Expired - Lifetime EP0236795B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87102179T ATE55283T1 (en) 1986-03-13 1987-02-16 ELECTROSTATIC SPRAYING DEVICE FOR COATING POWDER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863608415 DE3608415A1 (en) 1986-03-13 1986-03-13 ELECTROSTATIC SPRAYING DEVICE FOR COATING POWDER
DE3608415 1986-03-13

Publications (3)

Publication Number Publication Date
EP0236795A2 EP0236795A2 (en) 1987-09-16
EP0236795A3 true EP0236795A3 (en) 1988-09-14
EP0236795B1 EP0236795B1 (en) 1990-08-08

Family

ID=6296271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87102179A Expired - Lifetime EP0236795B1 (en) 1986-03-13 1987-02-16 Electrostatic spray device for coating powder

Country Status (6)

Country Link
US (1) US4802625A (en)
EP (1) EP0236795B1 (en)
JP (1) JPS62269766A (en)
AT (1) ATE55283T1 (en)
DE (1) DE3608415A1 (en)
ES (1) ES2016577B3 (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1325459C (en) * 1988-03-07 1993-12-21 Ivor R. Axford Multiple heart rate monitoring system
DE3904437A1 (en) * 1989-02-14 1990-08-16 Gema Ransburg Ag SPRAY GUN FOR ELECTROSTATIC SPRAY COATING
DE3904438A1 (en) 1989-02-14 1990-08-16 Gema Ransburg Ag SPRAY COATING DEVICE FOR ELECTROSTATIC SPRAY COATING
DE3926624A1 (en) * 1989-08-11 1991-02-14 Gema Ransburg Ag ELECTROSTATIC POWDER COATING DEVICE
US5093602A (en) * 1989-11-17 1992-03-03 Charged Injection Corporation Methods and apparatus for dispersing a fluent material utilizing an electron beam
DE4005350A1 (en) * 1990-02-20 1991-08-22 Wagner Int Spray jet insert for electrostatic spray coating gun - is fitted with sliding sleeve used to adjust spray width
DE4141663C2 (en) * 1991-12-17 1996-09-19 Wagner Int Electrostatic powder coating gun
US5518546A (en) * 1994-10-05 1996-05-21 Enexus Corporation Apparatus for coating substrates with inductively charged resinous powder particles
DE19502522A1 (en) * 1995-01-27 1996-08-01 Gema Volstatic Ag Spraying device for coating material
JP3135860B2 (en) * 1997-04-24 2001-02-19 バンドー化学株式会社 Thermal transfer image receiving paper and method of manufacturing the same
JP3135861B2 (en) * 1997-04-25 2001-02-19 バンドー化学株式会社 White powder coating composition for thermal transfer image receiving sheet and thermal transfer image receiving sheet
US6377768B1 (en) 1997-06-12 2002-04-23 OCé PRINTING SYSTEMS GMBH Device and method for inking a charge pattern using a toner spraying device
US5850976A (en) * 1997-10-23 1998-12-22 The Eastwood Company Powder coating application gun and method for using the same
US6889921B2 (en) * 2002-09-30 2005-05-10 Illinois Tool Works Inc. Bell cup skirt
US20050023385A1 (en) * 2003-07-29 2005-02-03 Kui-Chiu Kwok Powder robot gun
US7128277B2 (en) * 2003-07-29 2006-10-31 Illinois Tool Works Inc. Powder bell with secondary charging electrode
US20050056212A1 (en) * 2003-09-15 2005-03-17 Schaupp John F. Split shroud for coating dispensing equipment
US20050173556A1 (en) * 2004-02-09 2005-08-11 Kui-Chiu Kwok Coating dispensing nozzle
DE202005012863U1 (en) * 2005-08-12 2005-10-27 J. Wagner Ag Electrode holder in a powder spray unit comprises a strip in the powder channel formed by a sleeve with an electric contact on its rear face
GB0625583D0 (en) * 2006-12-21 2007-01-31 Itw Ltd Paint spray apparatus
US8371517B2 (en) 2007-06-29 2013-02-12 Illinois Tool Works Inc. Powder gun deflector
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
US10155233B2 (en) * 2008-04-09 2018-12-18 Carlisle Fluid Technologies, Inc. Splash plate retention method and apparatus
US9186881B2 (en) * 2009-03-09 2015-11-17 Illinois Tool Works Inc. Thermally isolated liquid supply for web moistening
US8979004B2 (en) * 2009-03-09 2015-03-17 Illinois Tool Works Inc. Pneumatic atomization nozzle for web moistening
US20100224122A1 (en) * 2009-03-09 2010-09-09 Illinois Tool Works Inc. Low pressure regulation for web moistening systems
US20100224703A1 (en) * 2009-03-09 2010-09-09 Illinois Tool Works Inc. Pneumatic Atomization Nozzle for Web Moistening
DE102011004352B4 (en) 2011-02-18 2014-05-15 Gema Switzerland Gmbh Device for the pneumatic conveying of powder
EP2836308B1 (en) * 2012-04-12 2019-07-17 Nordson Corporation Powder spray gun comprising a wear resistant electrode support
DE102012210439B4 (en) 2012-06-20 2019-03-14 Gema Switzerland Gmbh Apparatus for conveying coating powder from a powder container and method for cleaning a powder conveying apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1652421A1 (en) * 1966-09-14 1971-03-25 Ransburg Electro Coating Corp Powder coating device
US4289278A (en) * 1978-09-01 1981-09-15 Onoda Cement Co., Ltd. Powder electro-charging device and electrostatic powder painting device

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US329735A (en) * 1885-11-03 Feeding air to furnaces
US12802A (en) * 1855-05-01 Ajbner whiteley
US1490683A (en) * 1920-05-21 1924-04-15 Nat Airoil Burner Company Fluid-fuel burner
US1429415A (en) * 1921-01-18 1922-09-19 George C Evans Burner
DE1225523B (en) * 1959-12-13 1966-09-22 Escher Wyss Gmbh Electrostatic applicator spray device
NL134788C (en) * 1961-04-14
SE371942B (en) * 1972-03-13 1974-12-09 Atlas Copco Ab
US3940061A (en) * 1974-09-16 1976-02-24 Champion Spark Plug Company Electrostatic spray gun for powder coating material
JPS5145143A (en) * 1974-10-16 1976-04-17 Ransburg Japan Ltd Funshapataanno choseiga kanona funtaitosoyofunshanozuru
JPS5243846A (en) * 1975-10-03 1977-04-06 Senichi Masuda Device for electrostatic powder coating
FR2350887A1 (en) * 1976-05-10 1977-12-09 Air Ind Electrostatic paint spray with fan shaped jet - has shape formed by upwards sloping flat side jets between electrodes
US4380320A (en) * 1981-02-25 1983-04-19 Nordson Corporation Electrostatic powder spray gun nozzle
CA1188935A (en) * 1982-05-03 1985-06-18 Erhard Kock Method and apparatus for powder painting
DE3412694A1 (en) * 1983-04-07 1984-10-11 Kopperschmidt-Mueller GmbH & Co KG, 7057 Winnenden METHOD AND DEVICE FOR ELECTROSTATICALLY SPRAYING ON POWDER PARTICLES ON A SURFACE TO BE COATED

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1652421A1 (en) * 1966-09-14 1971-03-25 Ransburg Electro Coating Corp Powder coating device
US4289278A (en) * 1978-09-01 1981-09-15 Onoda Cement Co., Ltd. Powder electro-charging device and electrostatic powder painting device

Also Published As

Publication number Publication date
EP0236795B1 (en) 1990-08-08
JPS62269766A (en) 1987-11-24
US4802625A (en) 1989-02-07
DE3608415A1 (en) 1987-09-24
ATE55283T1 (en) 1990-08-15
JPH0525552B2 (en) 1993-04-13
EP0236795A2 (en) 1987-09-16
ES2016577B3 (en) 1990-11-16
DE3608415C2 (en) 1989-01-19

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