US3793802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grounding system for tubular collectors in electrostatic precipitating apparatus
Assignee: GEA Group AG
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Filing: 1972-06-08
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Granted: 1974-02-26
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Expires: 1992-06-08
Abstract
Abstract Tubular electrodes, generally of a polygonal configuration, and composed of nonconducting synthetic resin material, whose surfaces are rendered conductive by the deposition of a conductive--liquid film in electrostatic precipitators of the tube type, are grounded or otherwise connected to a terminal of the electrostatic power supply by a bibulous textile strip along the lower edges of the electrode adapted to collect conductive liquid.
Inventors
- 👤 L Hardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:07
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/40; B03C3/45; B03C3/53; Y; Y10; Y10S; Y10S55/00; Y10S55/38; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149; Y10T428/24165
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
69 words
In an electrostatic precipitator having an array of generally tubular upright passages defined by liquid-conducting surfaces, the improvement which comprises a grounding arrangement for electrically connecting said surfaces to a power source, said grounding arrangement comprising at least one bibulous strip of synthetic resin material extending at least partly around each of said passages and below said surface at the bottom of each passage for absorbing a conductive liquid.
Claim 2
Dependent Claim
69 words
In an electrostatic precipitator having an array of generally tubular upright passages defined by liquid-conducting surfaces, the improvement which comprises a grounding arrangement for electrically connecting said surfaces to a power source, said grounding arrangement comprising at least one bibulous strip of synthetic resin material extending at least partly around each of said passages and below said surface at the bottom of each passage for absorbing a conductive liquid.
Claim 3
Dependent Claim
33 words
The improvement defined in claim 1 wherein said passages are defined by individual tubes in contact with one another, said strips being received between the external surfaces of adjacent tubes and projecting therebeneath.
Claim 4
Dependent Claim
37 words
The improvement defined in claim 1 wherein said passages are defined between juxtaposed plates having corrugations forming said passages, said strip being provided along the bottom of at least one of said plates and being fixed thereto.
Claim 5
Dependent Claim
16 words
The improvement defined in claim 1 wherein said strip is composed of a woven textile material.
Claim 6
Dependent Claim
16 words
The improvement defined in claim 1 wherein said strip is composed of a nonwoven textile material.
Claim 7
Dependent Claim
42 words
The improvement defined in claim 1 wherein said passages are each formed by a tube wall having an outer surface, said strip being formed with a web lying along said outer surface and a bead underlying the surface of the respective passage.
Claim 8
Dependent Claim
57 words
The improvement defined in claim 1 wherein said electrostatic precipitator is formed with an array of said passages in hexogonal configuration, further comprising corona discharge electrodes extending centrally through certain passages, a high voltage power supply having one terminal Connected to said corona discharge electrodes and another terminal grounded, and a conductor connecting said strip to ground.
Claim 9
Dependent Claim
17 words
The improvement defined in claim 7 wherein said passages are defined by individual hexagonal-section synthetic resin tubes.
Claim 10
Dependent Claim
19 words
The improvement defined in claim 7 wherein said passages are defined between corrugated sheets and are of hexagonal configuration.
Claim 11
Dependent Claim
12 words
The improvement defined in claim 7 wherein said strips are partially graphitized.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |