GB793596A - Method of and apparatus for electrostatic spray painting - Google Patents
Method of and apparatus for electrostatic spray paintingInfo
- Publication number
- GB793596A GB793596A GB22068/56A GB2206856A GB793596A GB 793596 A GB793596 A GB 793596A GB 22068/56 A GB22068/56 A GB 22068/56A GB 2206856 A GB2206856 A GB 2206856A GB 793596 A GB793596 A GB 793596A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spray
- paint
- plate
- head
- workpiece
- 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
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
- B05B5/057—Arrangements for discharging liquids or other fluent material without using a gun or nozzle
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
In a method of electrostatic spray-painting, the workpiece is connected to one side of a source of high voltage and a plate-like spray head to the other, paint being supplied to the upper surface of the spray head so that it flows by gravity to an edge thereof at which it is atomized and charged so as to be deposited on the workpiece. As shown in Fig. 1, the spray <PICT:0793596/III/1> <PICT:0793596/III/2> head comprises a metal plate 20, bent as shown and supported on an insulator 28. Paint is slowly fed through a tube 30 from a pressurized or elevated supply tank 34 to the sloping surface 32 of the plate 20, whence it flows down to the end 24 which is preferably rounded at the top edge, and provided with a knife edge below, at which the paint is atomized; a groove may be provided adjacent to the spraying edge. The spray head is connected to the negative pole of a high voltage D.C. source, the positive pole of which is earthed. The workpiece 36 is carried through the field of spray on an earthed conveyer, and its movement may be used for operating switches 52, 54 controlling the current to the head 20; relays may be used to hold the circuits open or closed for predetermined times after the operation of the switches, and control valves may be fitted to the paint conduit. As shown in Fig. 4 the spray head may also consist of a flat tapered plate 20 of non-metallic material such as a synthetic resin, e.g. polystyrene, or hard rubber or the like, mounted on a metal stud 40 which is pivoted to a metal stand 48, connected to the negative terminal of the power supply. The paint is delivered by a tube 30, preferably non-metallic. Paints which react with the surface to be coated, or two or more materials which react with each other during the spraying operation, may be sprayed. The article to be coated may be pre-heated, e.g. when it is non-conductive, such as a steel steering wheel having a rubber-like covering, and shields, which may or may not be connected in circuit, may be used to direct the spray.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US527723A US3024132A (en) | 1955-08-11 | 1955-08-11 | Method and apparatus for electrostatic spraying |
| US549719A US2911323A (en) | 1955-11-29 | 1955-11-29 | Electrostatic method and apparatus using non-conductive discharge means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB793596A true GB793596A (en) | 1958-04-16 |
Family
ID=27062494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB22068/56A Expired GB793596A (en) | 1955-08-11 | 1956-07-17 | Method of and apparatus for electrostatic spray painting |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3024132A (en) |
| DE (1) | DE1209026B (en) |
| FR (1) | FR1155741A (en) |
| GB (1) | GB793596A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3133828A (en) * | 1961-12-13 | 1964-05-19 | Alfred D Slatkin | Process and apparatus for polymerized surface coating |
| US3380845A (en) * | 1963-12-06 | 1968-04-30 | Commercial Plastics Ltd | Coating opposite sides of web employing electrostatic field |
| DE102011014516A1 (en) | 2010-04-06 | 2012-05-10 | W.E.T. Automotive Systems Ag | MFP |
| US11167673B2 (en) * | 2017-07-25 | 2021-11-09 | Faurecia Automotive Seating, Llc | Vehicle seat |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE414593C (en) * | 1923-06-06 | 1925-06-04 | Rotopulsor Akt Ges | Process for evaporation of liquids |
| US1958406A (en) * | 1926-12-27 | 1934-05-15 | William A Darrah | Electrical spraying device |
| US2048651A (en) * | 1933-06-23 | 1936-07-21 | Massachusetts Inst Technology | Method of and apparatus for producing fibrous or filamentary material |
| DE658721C (en) * | 1936-03-05 | 1938-09-19 | Anton Formhals Dipl Ing | Device for the production of artificial fibers from a fiber-forming fluid |
| US2658472A (en) * | 1948-10-29 | 1953-11-10 | Ransburg Electro Coating Corp | Electrostatic coating apparatus |
| US2684656A (en) * | 1949-07-30 | 1954-07-27 | Ransburg Electro Coating Corp | Electrostatic coating apparatus |
| US2695002A (en) * | 1950-06-24 | 1954-11-23 | Ransburg Electro Coating Corp | Electrostatic atomizer of liquids |
| US2680079A (en) * | 1951-04-04 | 1954-06-01 | Huebner Company | Method for making sheet or web material |
-
1955
- 1955-08-11 US US527723A patent/US3024132A/en not_active Expired - Lifetime
-
1956
- 1956-07-17 GB GB22068/56A patent/GB793596A/en not_active Expired
- 1956-08-10 DE DEG20290A patent/DE1209026B/en active Pending
- 1956-08-11 FR FR1155741D patent/FR1155741A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1155741A (en) | 1958-05-07 |
| US3024132A (en) | 1962-03-06 |
| DE1209026B (en) | 1966-01-13 |
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