US3735924A - Electrostatic spraying apparatus for pulverulent material - Google Patents

Electrostatic spraying apparatus for pulverulent material Download PDF

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Publication number
US3735924A
US3735924A US00169645A US3735924DA US3735924A US 3735924 A US3735924 A US 3735924A US 00169645 A US00169645 A US 00169645A US 3735924D A US3735924D A US 3735924DA US 3735924 A US3735924 A US 3735924A
Authority
US
United States
Prior art keywords
combination
powder
sprayer
output member
orifice
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 - Lifetime
Application number
US00169645A
Other languages
English (en)
Inventor
H Wirth
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Application granted granted Critical
Publication of US3735924A publication Critical patent/US3735924A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B05B5/0418—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces designed for spraying particulate 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
    • B05B5/04—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

Definitions

  • FIG. 2 is an enlarged partly elevational and partly sectional view of a detail of the structure shown in FIG.
  • the housing 14 carries a downwardly extending sleeve 18 which consists of insulating material and spacedly surrounds the output shaft 12.
  • the lower end portion of the sleeve 18 is provided with a clamp 18a for an intermediate portion of a powder supplying or feeding conduit 19.
  • This conduit preferably consists at least in part of a suitable flexible material, such as polytetrafluorethylene, and constitutes a pneumatic conveyor wherein the powder is fed toward the horizontal upper surface 10b of the sprayer 10 in a gaseous carrier, such as air.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Nozzles (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Spray Control Apparatus (AREA)
US00169645A 1971-02-02 1971-08-06 Electrostatic spraying apparatus for pulverulent material Expired - Lifetime US3735924A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2104658A DE2104658C3 (de) 1971-02-02 1971-02-02 Vorrichtung zum Aufbringen eines pulverförmigen Auftragsmittels auf Gegenstände

Publications (1)

Publication Number Publication Date
US3735924A true US3735924A (en) 1973-05-29

Family

ID=5797538

Family Applications (1)

Application Number Title Priority Date Filing Date
US00169645A Expired - Lifetime US3735924A (en) 1971-02-02 1971-08-06 Electrostatic spraying apparatus for pulverulent material

Country Status (12)

Country Link
US (1) US3735924A (it)
AT (1) AT305471B (it)
BE (1) BE778589A (it)
BR (1) BR7200547D0 (it)
CH (1) CH526996A (it)
DE (1) DE2104658C3 (it)
ES (1) ES399382A1 (it)
FR (1) FR2125034A5 (it)
GB (1) GB1326173A (it)
IT (1) IT947092B (it)
NL (1) NL7201304A (it)
SE (1) SE386084B (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942721A (en) * 1974-04-03 1976-03-09 Robert Bosch Gmbh Fluidized powder feed system for rotary distributor of electrostatic coating apparatus
USRE31590E (en) * 1977-02-07 1984-05-29 Ransburg Japan, Ltd. Atomization in electrostatic coating
DE3738378A1 (de) * 1987-11-12 1989-05-24 Gema Ransburg Ag Spruehbeschichtungsvorrichtung zum zerstaeuben von lack
US5529246A (en) * 1993-01-20 1996-06-25 Ransburg Industrial Finishing K.K. Disk-type electrostatic powder coating method and an apparatus therefor
US8141797B2 (en) 2001-01-25 2012-03-27 Durr Systems Inc. Rotary atomizer for particulate paints

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4489894A (en) * 1981-02-27 1984-12-25 National Research Development Corporation Inductively charged spraying apparatus
EP0121288B1 (en) * 1983-01-06 1989-05-17 National Research Development Corporation Electrostatic spray head
GB8305865D0 (en) * 1983-03-03 1983-04-07 British Res Agricult Eng Electrostatic sprayers
DE3429075A1 (de) * 1984-08-07 1986-02-20 Hermann Behr & Sohn Gmbh & Co, 7121 Ingersheim Vorrichtung zum elektrostatischen beschichten von gegenstaenden
DE19701307C2 (de) * 1997-01-16 2001-10-04 Gottlob Thumm Gmbh Verfahren und Vorrichtung zum Beschichten elektrischer Wickelkörper mittels schmelzfähigen Pulvers
CN113579234A (zh) * 2021-07-26 2021-11-02 南通新天锐运动用品有限公司 一种杠铃片生产工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899136A (en) * 1957-11-15 1959-08-11 Electrostatic painting apparatus
US2961581A (en) * 1955-02-14 1960-11-22 Schweitzer Electrostatic Compa Electrostatic coating means and apparatus
US2975756A (en) * 1958-02-26 1961-03-21 Gen Motors Corp Electrostatic paint spray
US2975755A (en) * 1957-09-30 1961-03-21 Gen Motors Corp Electrostatic paint spray apparatus
US3085749A (en) * 1957-07-23 1963-04-16 Schweitzer Electrostatic Compa Electrostatic spray heads
US3129112A (en) * 1961-11-15 1964-04-14 Gen Motors Corp Electrostatic coating operations
US3358931A (en) * 1964-08-26 1967-12-19 Bosch Gmbh Robert Painting apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2961581A (en) * 1955-02-14 1960-11-22 Schweitzer Electrostatic Compa Electrostatic coating means and apparatus
US3085749A (en) * 1957-07-23 1963-04-16 Schweitzer Electrostatic Compa Electrostatic spray heads
US2975755A (en) * 1957-09-30 1961-03-21 Gen Motors Corp Electrostatic paint spray apparatus
US2899136A (en) * 1957-11-15 1959-08-11 Electrostatic painting apparatus
US2975756A (en) * 1958-02-26 1961-03-21 Gen Motors Corp Electrostatic paint spray
US3129112A (en) * 1961-11-15 1964-04-14 Gen Motors Corp Electrostatic coating operations
US3358931A (en) * 1964-08-26 1967-12-19 Bosch Gmbh Robert Painting apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3942721A (en) * 1974-04-03 1976-03-09 Robert Bosch Gmbh Fluidized powder feed system for rotary distributor of electrostatic coating apparatus
USRE31590E (en) * 1977-02-07 1984-05-29 Ransburg Japan, Ltd. Atomization in electrostatic coating
DE3738378A1 (de) * 1987-11-12 1989-05-24 Gema Ransburg Ag Spruehbeschichtungsvorrichtung zum zerstaeuben von lack
US4923123A (en) * 1987-11-12 1990-05-08 Ransburg-Gema Ag Spray coating device for atomization of fluid coating material
US5529246A (en) * 1993-01-20 1996-06-25 Ransburg Industrial Finishing K.K. Disk-type electrostatic powder coating method and an apparatus therefor
US8141797B2 (en) 2001-01-25 2012-03-27 Durr Systems Inc. Rotary atomizer for particulate paints

Also Published As

Publication number Publication date
BR7200547D0 (pt) 1973-07-17
IT947092B (it) 1973-05-21
SE386084B (sv) 1976-08-02
CH526996A (de) 1972-08-31
DE2104658B2 (de) 1977-09-01
DE2104658A1 (de) 1972-10-12
AT305471B (de) 1973-02-26
FR2125034A5 (it) 1972-09-22
BE778589A (fr) 1972-05-16
GB1326173A (en) 1973-08-08
ES399382A1 (es) 1974-12-01
NL7201304A (it) 1972-08-04
DE2104658C3 (de) 1978-05-11

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