GB1351944A - Electrostatic deposition of particles - Google Patents
Electrostatic deposition of particlesInfo
- Publication number
- GB1351944A GB1351944A GB1351944DA GB1351944A GB 1351944 A GB1351944 A GB 1351944A GB 1351944D A GB1351944D A GB 1351944DA GB 1351944 A GB1351944 A GB 1351944A
- Authority
- GB
- United Kingdom
- Prior art keywords
- particles
- duct
- earthed
- conductive material
- capacitor
- 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
- 239000002245 particle Substances 0.000 title abstract 5
- 238000004924 electrostatic deposition Methods 0.000 title 1
- 239000000843 powder Substances 0.000 abstract 3
- 239000003990 capacitor Substances 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 239000000428 dust Substances 0.000 abstract 1
- 238000007590 electrostatic spraying Methods 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000012811 non-conductive material Substances 0.000 abstract 1
- 239000000575 pesticide Substances 0.000 abstract 1
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
- B05B5/047—Discharge apparatus, e.g. electrostatic spray guns using tribo-charging
Landscapes
- Electrostatic Spraying Apparatus (AREA)
Abstract
1351944 Electrostatic spraying NATIONAL RESEARCH DEVELOPMENT CORP 11 Oct 1971 [15 July 1970] 2355/70 Divided out of 1351944 Heading B2F Apparatus for electrostatically depositing particles comprises a duct 10, 16, 12 forming a closed circuit, partly (at 12) of an electrically non-conductive material, electrical discharge means (e.g. needle 20) removing electric charge from particles entrained in a flow of gas in the duct, and outlet means 30 diverting particles from the duct and directing them adjacent to a capacitor means 18. An object 32 to be coated is earthed and positioned so that powder from outlet 30 flows between capacitor 18 and object 32, the particles thus being attracted to the earthed object. In alternative apparatus, the duct is made of "electrically partially conductive material" with internal ribs, and alternative capacity means may comprise a toroid surrounding a tube of insulating material. The apparatus may be used to dust crops with pesticide powders or electrostatic powder coating of products.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB235570 | 1970-07-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1351944A true GB1351944A (en) | 1974-05-15 |
Family
ID=9738104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1351944D Expired GB1351944A (en) | 1970-07-15 | 1970-07-15 | Electrostatic deposition of particles |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1351944A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072129A (en) * | 1976-04-27 | 1978-02-07 | National Research Development Corporation | Electrostatic powder deposition |
| EP0808664A3 (en) * | 1996-04-25 | 1998-11-25 | Kao Corporation | Electrostatic powder coating gun |
-
1970
- 1970-07-15 GB GB1351944D patent/GB1351944A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4072129A (en) * | 1976-04-27 | 1978-02-07 | National Research Development Corporation | Electrostatic powder deposition |
| EP0808664A3 (en) * | 1996-04-25 | 1998-11-25 | Kao Corporation | Electrostatic powder coating gun |
| US5894989A (en) * | 1996-04-25 | 1999-04-20 | Kao Corporation | Electrostatic powder coating gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |