US3688475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-precipitation
Assignee: WLTD Ltd
•
Filing: 1970-03-16
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Granted: 1972-09-05
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Expires: 1990-03-16
Abstract
Abstract An electro-precipitator discharge electrode support structure comprises an upper portion comprising a plurality of vertical elongated discharge electrode support masts which extend upwardly from a central region of the structure, and a lower portion also comprising a plurality of vertical elongated discharge electrodes support masts which are non integral with the support masts of the upper portion and extend downwardly from the central region. A rectangular bracing cage is provided at the central region to connect the support masts of the upper portion to the support masts of the lower portion so that relative movement between the upper and lower ends of the structure is minimized.
Inventors
- 👤 John F Dyla
- 👤 William M Moore
- 👤 Robin A Attfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:52
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/86
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
94 words
An electro-precipitator discharge electrode support structure having a central region and said structure comprising a. an upper portion comprising a plurality of vertical elongated support members which extend upwardly from the central region of the structure, b. a lower portion also comprising a plurality of vertical elongated support members which are non integral with the support members of the upper portion and extend downwardly from the central region, and c. a braced cage which at the central region connects the support members of the upper portion to the support members of the lower portion.
Claim 2
Dependent Claim
94 words
An electro-precipitator discharge electrode support structure having a central region and said structure comprising a. an upper portion comprising a plurality of vertical elongated support members which extend upwardly from the central region of the structure, b. a lower portion also comprising a plurality of vertical elongated support members which are non integral with the support members of the upper portion and extend downwardly from the central region, and c. a braced cage which at the central region connects the support members of the upper portion to the support members of the lower portion.
Claim 3
Dependent Claim
103 words
A structure according to claim 1 wherein said braced cage is rectangular and connects the support members of the upper portion of the structure to the support members of the lower portion, the cage comprising i. a plurality of upper and lower horizontal memBers, ii. means for securing the support members to the cage, iii. horizontal struts interconnecting the upper horizontal members said struts extending transversely of said upper horizontal members, iv. further horizontal struts interconnecting the lower horizontal members said struts extending transversely of said lower horizontal members, and v. inclined struts connecting the upper horizontal struts to the lower horizontal struts.
Claim 4
Dependent Claim
48 words
In a structure according to claim 1, a plurality of discharge electrodes, each discharge electrode comprising a support mast, a plurality of cross members which extend from the support mast, and discharge wires supported by the cross members, the support masts providing said support members of the structure.
Claim 5
Dependent Claim
22 words
A structure according to claim 3 wherein each discharge electrode comprises four parallel discharge wires, two on either side of the mast.
Claim 6
Dependent Claim
50 words
A structure according to claim 3, comprising a plurality of horizontal half-tubes, means securing an appropriate end portion of the support mast of each electrode to a said horizontal half-tube, means securing the half-tube to the braced cage, and means securing the discharge wires of the electrode to the half-tube.
Claim 7
Dependent Claim
157 words
A structure according to claim 1 wherein the support members of the upper portion are provided in a first set of rows the support members of which rows extend downwardly to terminate at an upper end of the central region and a second set of rows which alternate with the first set and the support members of which extend downwardly to terminate at a lower end of the central region; and wherein the support members of the lower portion are provided in a first set of rows longitudinally aligned with the first set of rows of the upper portion and the support members of which rows of the lower portion extend upwardly to terminate at the upper end of the central region, and a second set of rows aligned with the second set of rows of the upper portion, and the support members of which extend upwardly to terminate at the lower end of the central region.
Claim 8
Dependent Claim
34 words
A structure according to claim 1 comprising a plurality of half-tubes, means securing and appropriate end portion of each support member to a said half-tube, and means securing the half-tubes to the braced cage.
Claim 9
Dependent Claim
140 words
An electro-precipitator comprising a casing, a plurality of collector electrodes mounted in the casing, a plurality of discharge electrodes located between adjacent collector electrodes, and a discharge electrode support structure in which the discharge electrodes are supported, said structure having a central region and said structure comprising (a) an upper portion comprising a plurality of vertical elongated support members which extend upwardly from the central region of the structure, (b) a lower portion also comprising a plurality of vertical elongated support members which are non integral with the support members of the upper portion and extend downwardly from the central region, and (c) a rectangular braced cage which at the central region connects the support members of the upper portion to the support members of the lower portion, said braced cage comprising vertically spaced horizontal members and inclined bracing struts.
Claim 10
Dependent Claim
140 words
An electro-precipitator comprising a casing, a plurality of collector electrodes mounted in the casing, a plurality of discharge electrodes located between adjacent collector electrodes, and a discharge electrode support structure in which the discharge electrodes are supported, said structure having a central region and said structure comprising (a) an upper portion comprising a plurality of vertical elongated support members which extend upwardly from the central region of the structure, (b) a lower portion also comprising a plurality of vertical elongated support members which are non integral with the support members of the upper portion and extend downwardly from the central region, and (c) a rectangular braced cage which at the central region connects the support members of the upper portion to the support members of the lower portion, said braced cage comprising vertically spaced horizontal members and inclined bracing struts.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |