US2825078A - Electrostatic apparatus for separating articles - Google Patents
Electrostatic apparatus for separating articles Download PDFInfo
- Publication number
- US2825078A US2825078A US347342A US34734253A US2825078A US 2825078 A US2825078 A US 2825078A US 347342 A US347342 A US 347342A US 34734253 A US34734253 A US 34734253A US 2825078 A US2825078 A US 2825078A
- Authority
- US
- United States
- Prior art keywords
- articles
- particles
- electrode
- electrostatic
- relays
- 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
Links
- 239000002245 particle Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 9
- 230000005686 electrostatic field Effects 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C7/00—Separating solids from solids by electrostatic effect
- B03C7/02—Separators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Definitions
- This invention relates to apparatus for separating articles, and more particularly to methods of and apparatus for electrostatically removing dust and dielectric particles from articles, such as, for example, relays.
- An object of the invention is to provide new and improved apparatus for separating articles.
- Another object of the invention is to provide apparatus for electrostatically removing dust and dielectric particles from articles.
- a further object of the invention is to provide apparatus for removing dielectric particles from articles such as relays or the like, which are very difiicult to clean by previously known methods and apparatus.
- articles to be cleaned are subjected to an electrostatic field to draw the dielectric particles from the articles advanced therethrough.
- a pair of electrostatic electrodes are provided and articles are advanced between the electrodes.
- a potential is applied to the electrodes to create an electrostatic field therebetween, which pulls the dielectric particles from the articles to one of the electrodes, and a stream of air is directed across the latter electrode to remove the particles therefrom.
- FIG. 1 is a perspective view of an apparatus for practicing the method forming one embodiment of the invention
- Fig. 2 is a fragmentary schematic view of a portion of the apparatus shown in Fig. 1.
- This apparatus includes a chute 12, to which the articles are fed from a raised hopper 14 and the relays roll and slide down the chute between plates or electrodes 15 and 16.
- the electrode 15 is grounded and is connected to the negative side of an electrostatic generator 20 of a well-known type.
- the generator generates a potential such as to create a high electrostatic field between the electrodes 15 and 16.
- the positive side of the electrostatic generator 20 is connected by a conductor 21 to the electrode 16.
- the strong field created between the electrodes 15 and 16 charges particles to be removed from the relays 10, and draws the particles to the electrode 16, which removes the charges therefrom.
- the particles As the particles reach the electrode 16, they are swept therefrom by a continuous, sheet-like blast of gas, such as air, for example, from a nozzle 31 supplied with gas under pressure by a conduit 32 leading from a suitable source (not shown).
- the particles are swept past a downwardly directed portion 33 of the electrode 16 into a trap 34 which removes the particles from the gas stream.
- the stream of gas flowing across the face of the electrode 16 also creates a low pressure area above the articles, which assists the electrostatic field in drawing the particles upwardly to the electrode 16.
- the particles from the relays, and the plate 16 removes the charge from the particles, which are dropped into the trap 34 so that the particles do not again contaminate the articles further.
- the above-described method and apparatus simply and effectively remove dielectric particles from all portions of the relay.
- An apparatus for cleaning dielectric particles from articles comprising an inclined chute for guiding articles therealong, an upper electrode spaced above a portion of the chute and extending thereacross, said electrode having a lateral deflecting portion ofiset to one side of the chute, a trough positioned laterally of the chute and below the deflecting portion of the electrode, baflle means positioned laterally of the deflecting portion, means for applying an electrical potential across the chute and the electrode, and means for blowing air across the lower face of the electrode in a direction such as to blow particles on the electrode to and across the deflecting portion to drop them into the trough.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Elimination Of Static Electricity (AREA)
Description
March 4, 1958 A. G. BUGLER ET AL Filed April 7, 1955 FIG.2
ELECTROSTATIC APPARATUS FOR SEPARATING ARTICLES 20 ELEOTRO STATIC POWER GENERATOR INVENTORS: A. G. BUGLER '5 A BY A. R. JOHNSON ATTORNEY United States Patent ELECTROSTATIC APPARATUS FOR SEPARATENG ARTECLES Arthur G. Bugler, Hinsdale, and Arnold R. Johnson, Downers Grove, ,Ill., assignors to Western Electric Company, Incorporated, New York, N. Y., a corporation of New York Application April 7, 1953, Serial No. 347,342
1 Claim. (Cl. 15-15) This invention relates to apparatus for separating articles, and more particularly to methods of and apparatus for electrostatically removing dust and dielectric particles from articles, such as, for example, relays.
In the manufacture of electrical parts, such as, for example, relays which become dusty or have dielectric particles getting between the laminations and contacts of the various cavities therein, it is necessary to clean the articles before they are placed in service. With past known methods and apparatus, this has been a very difficult thing to accomplish. Furthermore, in articles such as relays wherein cards of dielectric material are provided, often splinters stuck to the cards cannot be separated from the cards by known cleaning methods and interfere with the operation of the articles so that the articles must be discarded.
An object of the invention is to provide new and improved apparatus for separating articles.
Another object of the invention is to provide apparatus for electrostatically removing dust and dielectric particles from articles.
A further object of the invention is to provide apparatus for removing dielectric particles from articles such as relays or the like, which are very difiicult to clean by previously known methods and apparatus.
In a method and apparatus illustrating certain features of the invention, articles to be cleaned are subjected to an electrostatic field to draw the dielectric particles from the articles advanced therethrough.
In a method and apparatus forming more specific embodiments of the invention, a pair of electrostatic electrodes are provided and articles are advanced between the electrodes. A potential is applied to the electrodes to create an electrostatic field therebetween, which pulls the dielectric particles from the articles to one of the electrodes, and a stream of air is directed across the latter electrode to remove the particles therefrom.
A complete understanding of the invention may be obtained from the following detailed description of a method and an apparatus forming specific embodiments,
when read in conjunction with the appended drawings,
in which Fig. 1 is a perspective view of an apparatus for practicing the method forming one embodiment of the invention and Fig. 2 is a fragmentary schematic view of a portion of the apparatus shown in Fig. 1.
Referring now in detail to the drawings, there is shown therein an apparatus for removing dielectric particles, such as dust, insulator fragments and splinters secured to insulating components of relays 10. This apparatus includes a chute 12, to which the articles are fed from a raised hopper 14 and the relays roll and slide down the chute between plates or electrodes 15 and 16. The electrode 15 is grounded and is connected to the negative side of an electrostatic generator 20 of a well-known type. The generator generates a potential such as to create a high electrostatic field between the electrodes 15 and 16. The positive side of the electrostatic generator 20 is connected by a conductor 21 to the electrode 16.
The strong field created between the electrodes 15 and 16 charges particles to be removed from the relays 10, and draws the particles to the electrode 16, which removes the charges therefrom. As the particles reach the electrode 16, they are swept therefrom by a continuous, sheet-like blast of gas, such as air, for example, from a nozzle 31 supplied with gas under pressure by a conduit 32 leading from a suitable source (not shown). The particles are swept past a downwardly directed portion 33 of the electrode 16 into a trap 34 which removes the particles from the gas stream. The stream of gas flowing across the face of the electrode 16 also creates a low pressure area above the articles, which assists the electrostatic field in drawing the particles upwardly to the electrode 16. Thus, as the articles roll and slide slowly down the chute 12, and the low pressure area pulls the electrostatic field, the particles from the relays, and the plate 16 removes the charge from the particles, which are dropped into the trap 34 so that the particles do not again contaminate the articles further. The above-described method and apparatus simply and effectively remove dielectric particles from all portions of the relay.
It is to be understood that the above-described arrangements are simply illustrative of the application of the principles of the invention. Numerous other arrangements may be readily devised by those skilled in the art which will embody the principles of the invention and fall within the spirit and scope thereof.
What is claimed is:
An apparatus for cleaning dielectric particles from articles, comprising an inclined chute for guiding articles therealong, an upper electrode spaced above a portion of the chute and extending thereacross, said electrode having a lateral deflecting portion ofiset to one side of the chute, a trough positioned laterally of the chute and below the deflecting portion of the electrode, baflle means positioned laterally of the deflecting portion, means for applying an electrical potential across the chute and the electrode, and means for blowing air across the lower face of the electrode in a direction such as to blow particles on the electrode to and across the deflecting portion to drop them into the trough.
References Cited in the file of this patent UNITED STATES PATENTS 1,355,477 Howell Oct. 12, 1920 2,043,278 Ackerman June 9, 1936 2,197,864 Johnson Apr. 23, 1940 2,414,993 Wiegand Jan. 28, 1947 2,576,047 Schafiert Nov. 20, 1951 2,317,210 Masse Apr. 20, 1953 FOREIGN PATENTS 650,025 Great Britain Feb. 14, 1951
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US347342A US2825078A (en) | 1953-04-07 | 1953-04-07 | Electrostatic apparatus for separating articles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US347342A US2825078A (en) | 1953-04-07 | 1953-04-07 | Electrostatic apparatus for separating articles |
Publications (1)
Publication Number | Publication Date |
---|---|
US2825078A true US2825078A (en) | 1958-03-04 |
Family
ID=23363309
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US347342A Expired - Lifetime US2825078A (en) | 1953-04-07 | 1953-04-07 | Electrostatic apparatus for separating articles |
Country Status (1)
Country | Link |
---|---|
US (1) | US2825078A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2920987A (en) * | 1958-01-24 | 1960-01-12 | Norton Co | Electrostatic device |
US3074086A (en) * | 1959-02-04 | 1963-01-22 | Tribune Company | Apparatus for removing dust from paper webs |
US4122002A (en) * | 1977-05-09 | 1978-10-24 | Hauskins Jr John B | Method and apparatus for electrostatically separating particles from a mixture of particles |
US4198061A (en) * | 1978-03-06 | 1980-04-15 | Dunn Robert E | Electrostatic-vacuum record cleaning apparatus |
US5072243A (en) * | 1990-08-13 | 1991-12-10 | Xerox Corporation | Electrostatic purge for an ion projection device |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1355477A (en) * | 1918-11-04 | 1920-10-12 | United Chemical & Organic Prod | Means for separating mixtures |
US2043278A (en) * | 1934-03-16 | 1936-06-09 | Curtis Mfg Co | Method for cleaning telephone switchboards |
US2197864A (en) * | 1937-07-03 | 1940-04-23 | Ritter Products Corp | Process of electrostatic separation |
US2317210A (en) * | 1939-09-30 | 1943-04-20 | Masse Thomas Jerome | Method and apparatus for seaparating textile material from rubber |
US2414993A (en) * | 1942-01-03 | 1947-01-28 | Orefraction Inc | Apparatus for electrostatic separation of material particles |
GB650025A (en) * | 1945-10-11 | 1951-02-14 | Quaker Oats Co | Improvements in or relating to methods of cleaning coal |
US2576047A (en) * | 1948-10-21 | 1951-11-20 | Battelle Development Corp | Method and apparatus for printing electrically |
-
1953
- 1953-04-07 US US347342A patent/US2825078A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1355477A (en) * | 1918-11-04 | 1920-10-12 | United Chemical & Organic Prod | Means for separating mixtures |
US2043278A (en) * | 1934-03-16 | 1936-06-09 | Curtis Mfg Co | Method for cleaning telephone switchboards |
US2197864A (en) * | 1937-07-03 | 1940-04-23 | Ritter Products Corp | Process of electrostatic separation |
US2317210A (en) * | 1939-09-30 | 1943-04-20 | Masse Thomas Jerome | Method and apparatus for seaparating textile material from rubber |
US2414993A (en) * | 1942-01-03 | 1947-01-28 | Orefraction Inc | Apparatus for electrostatic separation of material particles |
GB650025A (en) * | 1945-10-11 | 1951-02-14 | Quaker Oats Co | Improvements in or relating to methods of cleaning coal |
US2576047A (en) * | 1948-10-21 | 1951-11-20 | Battelle Development Corp | Method and apparatus for printing electrically |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2920987A (en) * | 1958-01-24 | 1960-01-12 | Norton Co | Electrostatic device |
US3074086A (en) * | 1959-02-04 | 1963-01-22 | Tribune Company | Apparatus for removing dust from paper webs |
US4122002A (en) * | 1977-05-09 | 1978-10-24 | Hauskins Jr John B | Method and apparatus for electrostatically separating particles from a mixture of particles |
US4198061A (en) * | 1978-03-06 | 1980-04-15 | Dunn Robert E | Electrostatic-vacuum record cleaning apparatus |
US5072243A (en) * | 1990-08-13 | 1991-12-10 | Xerox Corporation | Electrostatic purge for an ion projection device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3402814A (en) | Method and apparatus for the electrostatic sorting of granular materials | |
US2579441A (en) | Electrostatic precipitator | |
US1222305A (en) | Electrostatic separator for inflammable materials. | |
US1549875A (en) | Method of separating poorly-conducting fibrous and granular materials | |
Kelly et al. | The theory of electrostatic separations: A review part III. The separation of particles | |
US2825078A (en) | Electrostatic apparatus for separating articles | |
US2142128A (en) | Electrical precipitation method and apparatus | |
US859998A (en) | Method of electrical separation. | |
US2351089A (en) | Dust precipitator | |
US3733783A (en) | Electrostatic precipitator | |
US4326951A (en) | Electrostatic mineral concentrator | |
US2700429A (en) | Electrical precipitator | |
Penney | A new electrostatic precipitator | |
US3247960A (en) | Electrostatic conditioning electrode separator | |
US2848727A (en) | Apparatus for separating articles | |
US7041925B2 (en) | Apparatus for the electrostatic separation of particulate mixtures | |
WO2005042168A1 (en) | Magnetic separator with electrostatic enhancement for fine dry particle separation | |
US3717977A (en) | Smoke pollutant concentrator | |
US2181767A (en) | Electrostatic precipitator | |
US2382254A (en) | Precipitator | |
US1873394A (en) | Method of and apparatus for separating materials | |
US2357658A (en) | Electrostatic separation process and apparatus | |
US2174681A (en) | Electrostatic separating apparatus | |
EP0006826B1 (en) | Process and apparatus for the separation of electrically insulating material | |
US3049848A (en) | Electrostatic precipitator circuits |