Patent US4119416A successfully refreshed from Google Patents.
US4119416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic precipitator
Assignee: Nissan Motor Co Ltd
•
Filing: 1977-06-22
•
Granted: 1978-10-10
•
Expires: 1997-06-22
Abstract
Abstract An electrostatic precipitator comprises at least a pair of parallel collecting plate electrodes between which is disposed an auxiliary plate electrode biased at an opposite potential to the potential applied to the collecting plate electrodes and a corona discharge electrode spaced predetermined distances from said collecting and auxiliary plate electrodes and biased at the same potential as that applied to the auxiliary plate electrode.
Inventors
- 👤 Kazuo Hayashi
- 👤 Ken Kamijo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:30
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/02; B03C3/04; B03C3/08; B03C3/34; B03C3/40
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
117 words
An electrostatic precipitator comprising at least one pair of parallel collecting plate electrodes connected to a first terminal of a potential source, an auxiliary plate electrode disposed between said collecting electrodes and connected to a second terminal of said potential source, a wire electrode extending parallel to a front edge of said auxiliary plate electrode and disposed between said parallel collecting electrodes, said wire electrode being spaced a distance a from each of said collecting electrodes and being spaced a distance b from said front edge of said auxiliary plate electrode and connected to said second terminal of said potential source, the ratio of a to b being substantially within a range of between 1:0.8 to 1:1.
Claim 2
Dependent Claim
117 words
An electrostatic precipitator comprising at least one pair of parallel collecting plate electrodes connected to a first terminal of a potential source, an auxiliary plate electrode disposed between said collecting electrodes and connected to a second terminal of said potential source, a wire electrode extending parallel to a front edge of said auxiliary plate electrode and disposed between said parallel collecting electrodes, said wire electrode being spaced a distance a from each of said collecting electrodes and being spaced a distance b from said front edge of said auxiliary plate electrode and connected to said second terminal of said potential source, the ratio of a to b being substantially within a range of between 1:0.8 to 1:1.
Claim 3
Dependent Claim
22 words
An electrostatic precipitator as claimed in claim 1, wherein said wire electrode is connected with and supported by said auxiliary plate electrode.
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) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |