ES381156A1 - Apparatus for the electrostatic coating of objects with atomised solids particles - Google Patents
Apparatus for the electrostatic coating of objects with atomised solids particlesInfo
- Publication number
- ES381156A1 ES381156A1 ES381156A ES381156A ES381156A1 ES 381156 A1 ES381156 A1 ES 381156A1 ES 381156 A ES381156 A ES 381156A ES 381156 A ES381156 A ES 381156A ES 381156 A1 ES381156 A1 ES 381156A1
- Authority
- ES
- Spain
- Prior art keywords
- gun
- voltage
- powder
- supply
- electrodes
- 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
- B05B5/16—Arrangements for supplying liquids or other fluent material
- B05B5/1691—Apparatus to be carried on or by a person or with a container fixed to the discharge device
-
- 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
-
- 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
- B05B5/0531—Power generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/10—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode arranged for operation in series, e.g. for multiplication of voltage
- H02M7/103—Containing passive elements (capacitively coupled) which are ordered in cascade on one source
- H02M7/106—With physical arrangement details
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
In an electrostatic spray gun for spraying powders the gun includes within it a tube of electrically insulating material (e.g. plastics material) 7 within which is a plurality of electrodes 1, 1a, 2, 2a &c connected to different potentials for the production within the tube of corona discharges. These electrodes are, in the embodiment shown, disposed in two rows, 1 to 6 and 1a to 6a, and in a helix around the tube surface, supplied with voltage from taps on either a voltage multiplier cascade (Fig. 3, not shown) or a voltage divider circuit (Fig. 4, not shown) the capacitors and diodes or the resistors of the circuit used being positioned outside the tube 7 and encapsulated in the plastics material of the body 20 of the gun (Fig. 2, not shown). The supply to the voltage multiplier cascade is from a transformer 11 at the rear of the gun, this in turn supplied from a voltage convertor in the handle of the gun, the electrical supply to the gun being low voltage and d.c., via cable 34, the trigger 18 and switch 19 controlling this supply. The powder is supplied to the gun at inlet 33 entrained in a gas, and expelled from orifice 21 and atomised by collision with the baffle 23, which baffle is movable with rod 24 through cord 27 and rod 28. An annular auxiliary electrode 22 may be positioned at the outlet of the gun, connected to the final stage of the voltage multiplier (or divider), it being embedded completely in the atomiser part 35 of the gun if the powder is rather flammable, partially exposed to the powder stream if the powder is less flammable or dispensed with entirely if the powder is very inflammable. A further embodiment (Fig: 6, not shown) has the electrodes arranged in an annular array of 4 spaced at 90 from each other and positioned closer to the orifice 21 than the diameter of the orifice, the opposite electrodes being at the same potential and each of the two pairs connected to one side of a voltage amplifier cascade consisting of two columns of capacitors interlinked with diodes (Fig. 9, not shown) positioned around the insulated tube through which the material is fed. The supply to the multiplier is as in the previous embodiment, the supply of coating material here being through the handle of the gun. Another method here of supplying the voltage is to have two of the electrodes connected to the output of a high voltage generator and the other two earthed via a divertor resistor (Fig. 10, not shown). A yet further embodiment (Fig. 5) has a reservoir of powder mounted on the gun.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH974469A CH496481A (en) | 1969-06-25 | 1969-06-25 | Device for the electrostatic coating of objects with atomized solid particles |
CH848270A CH509106A (en) | 1967-05-22 | 1970-06-05 | Device for the electrostatic coating of objects with atomized solid particles |
Publications (1)
Publication Number | Publication Date |
---|---|
ES381156A1 true ES381156A1 (en) | 1972-11-16 |
Family
ID=25703383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES381156A Expired ES381156A1 (en) | 1969-06-25 | 1970-06-25 | Apparatus for the electrostatic coating of objects with atomised solids particles |
Country Status (14)
Country | Link |
---|---|
JP (1) | JPS5018495B1 (en) |
AT (1) | AT302511B (en) |
BE (1) | BE752349A (en) |
CS (1) | CS153087B2 (en) |
DE (1) | DE2065699C3 (en) |
DK (1) | DK142744B (en) |
ES (1) | ES381156A1 (en) |
FI (1) | FI53407C (en) |
FR (1) | FR2051266A5 (en) |
GB (1) | GB1261307A (en) |
NL (1) | NL161377C (en) |
NO (1) | NO132135C (en) |
SE (1) | SE369480B (en) |
SU (1) | SU589898A3 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH555704A (en) * | 1973-09-13 | 1974-11-15 | Gema Ag | DEVICE FOR COATING OBJECTS USING ELECTROSTATICALLY ARRIVED PARTICLES. |
US4004733A (en) * | 1975-07-09 | 1977-01-25 | Research Corporation | Electrostatic spray nozzle system |
JPS5243846A (en) * | 1975-10-03 | 1977-04-06 | Senichi Masuda | Device for electrostatic powder coating |
DE2555547C3 (en) * | 1975-12-10 | 1983-06-09 | Hajtómüvek és Festöberendezések Gyára, Budapest | Device for the electrostatic application or spraying of material particles |
DE2652059C2 (en) * | 1976-11-09 | 1981-09-17 | Hajtómüvek és Festöberendezések Gyára, Budapest | Device for the electrostatic application of electrically conductive, in particular water-thinned, dyes |
US4323947A (en) * | 1979-08-13 | 1982-04-06 | J. Wagner Ag. | Electrostatic gun with improved diode-capacitor multiplier |
DE3004686A1 (en) * | 1980-02-08 | 1981-08-13 | Spritztechnik Kopperschmidt Gmbh & Co Kg, 4800 Bielefeld | CIRCUIT ARRANGEMENT FOR GENERATING ELECTROSTATIC HIGH VOLTAGE FROM AC VOLTAGE FOR HAND SPRAY GUNS |
DE3126936A1 (en) * | 1981-07-08 | 1983-02-03 | Ernst Roederstein Spezialfabrik für Kondensatoren GmbH, 8300 Landshut | Electrostatic coating apparatus |
GB2205052A (en) * | 1987-05-20 | 1988-11-30 | Silvan Pumps & Sprayers Pty | Electrostatic sprayer |
DE3718154A1 (en) * | 1987-05-29 | 1988-12-08 | Gema Ransburg Ag | SPRAY UNIT WITH A ROTATIONAL SPRAY ORGAN |
JPS6440301U (en) * | 1987-08-29 | 1989-03-10 | ||
KR0184124B1 (en) * | 1996-04-16 | 1999-03-20 | 손욱 | Multi-electrifying developing gun |
-
1970
- 1970-06-15 AT AT536070A patent/AT302511B/en not_active IP Right Cessation
- 1970-06-19 DE DE19702065699 patent/DE2065699C3/en not_active Expired
- 1970-06-22 BE BE752349D patent/BE752349A/en unknown
- 1970-06-22 GB GB3013770A patent/GB1261307A/en not_active Expired
- 1970-06-23 DK DK323670A patent/DK142744B/en not_active IP Right Cessation
- 1970-06-23 NL NL7009210A patent/NL161377C/en not_active IP Right Cessation
- 1970-06-24 CS CS443070A patent/CS153087B2/cs unknown
- 1970-06-24 SU SU701456450A patent/SU589898A3/en active
- 1970-06-24 FI FI176270A patent/FI53407C/en active
- 1970-06-24 NO NO246870A patent/NO132135C/no unknown
- 1970-06-24 FR FR7023424A patent/FR2051266A5/fr not_active Expired
- 1970-06-24 SE SE873270A patent/SE369480B/xx unknown
- 1970-06-25 ES ES381156A patent/ES381156A1/en not_active Expired
- 1970-06-25 JP JP5486570A patent/JPS5018495B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1261307A (en) | 1972-01-26 |
JPS5018495B1 (en) | 1975-06-30 |
FR2051266A5 (en) | 1971-04-02 |
DE2065699A1 (en) | 1975-05-28 |
DE2065699B2 (en) | 1980-02-14 |
FI53407B (en) | 1978-01-31 |
NL161377B (en) | 1979-09-17 |
DE2030388B2 (en) | 1975-08-14 |
DK142744C (en) | 1981-09-07 |
DK142744B (en) | 1981-01-12 |
NL7009210A (en) | 1970-12-29 |
CS153087B2 (en) | 1974-02-22 |
NO132135B (en) | 1975-06-16 |
DE2065699C3 (en) | 1980-10-23 |
SE369480B (en) | 1974-09-02 |
FI53407C (en) | 1978-05-10 |
NL161377C (en) | 1980-02-15 |
DE2030388A1 (en) | 1971-01-07 |
BE752349A (en) | 1970-12-01 |
SU589898A3 (en) | 1978-01-25 |
NO132135C (en) | 1975-09-24 |
AT302511B (en) | 1972-10-25 |
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