US5210678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chain-type discharge wire for use in an electrostatic precipitator
Assignee: Industrial Technology Research Institute
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Filing: 1991-12-16
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Granted: 1993-05-11
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Expires: 2011-12-16
Abstract
Abstract An improved discharge wire for use in an electrostatic precipitator which is used for collecting pollutant particles contained in a flow of exhaust gas. The improved discharge wire is a chain having a plurality of chain links made of conductive material. There is provided at least one needle-like member made of conductive material on at least one of the chain links. As an electric potential is applied to the chain, the needle-like member emits corona current. The corona current charges the pollutant particles such that the pollutant particles are forced by the electric field to a collecting member.
Inventors
- 👤 Yeong-Chang Lain
- 👤 Rey-Chein Chang
- 👤 Ching-I Juch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:31
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/40; B03C3/41; B03C2201/00; B03C2201/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A discharge wire for use in an electrostatic precipitator which is used for collecting pollutant particles contained in a flow of exhaust gas, the electrostatic precipitator having a collecting member made of conductive material and a means for impressing an electric field across said discharge wire and the collecting member;, said discharge wire comprising: a chain having a plurality of chain links made of conductive material, said chain being disposed near said collecting member; at least one needle-like member made of conductive material provided on at least one of the chain links; and wherein as the electric field is impressed across said chain and the collecting member, said needle-like member will discharge corona current such that pollutant particles nearby are charged and thereby attracted by and accumulated on the collecting member.
Claim 2
Dependent Claim
131 words
A discharge wire for use in an electrostatic precipitator which is used for collecting pollutant particles contained in a flow of exhaust gas, the electrostatic precipitator having a collecting member made of conductive material and a means for impressing an electric field across said discharge wire and the collecting member;, said discharge wire comprising: a chain having a plurality of chain links made of conductive material, said chain being disposed near said collecting member; at least one needle-like member made of conductive material provided on at least one of the chain links; and wherein as the electric field is impressed across said chain and the collecting member, said needle-like member will discharge corona current such that pollutant particles nearby are charged and thereby attracted by and accumulated on the collecting member.
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) | 1996-05-10 | 1996-11-09 | 1997-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-10 | 2000-11-09 | 2001-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-10 | 2004-11-09 | 2005-05-11 | $7700.00 | Window Closed / Lapsed |