US3247091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrohydrodynamic precipitator
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1961-11-13
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Granted: 1966-04-19
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Expires: 1981-11-13
Abstract
No abstract record available.
Inventors
- 👤 Otmar M Stuetzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:42
CPC Classifications
B; B03; B03C; B03C5/00; B03C5/02; B01; B01D; B01D35/00; B01D35/06; Y; Y10; Y10S; Y10S55/00; Y10S55/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
AN ELECTROHYDRODYNAMIC PRECIPITATOR COMPRISING: CONDUIT MEANS DEFINING A FLOW PATH FOR A LIQUID AND PARTICLES TO BE REMOVED FROM THE LIQUID, SAID CONDUIT MEANS HAVING AN OPENING; PRECIPITATE RECEIVING MEANS COMMUNICATING WITH SAID FLOW PATH THROUGH AN ENTRANCE DEFINED BY SAID OPENING; IONIZING MEANS IN SAID FLOW PATH AND ON ONE SIDE OF SAID ENTRANCE TO SAID RECEIVING MEANS FOR IONIZING PARTICLES TO BE REMOVED FROM THE LIQUID; AND PARTICLE-PREVIOUS ATTRACTING ELECTRODE MEANS LOCATED OUTSIDE SAID FLOW PATH ON THE OTHER SIDE OF SAID ENTRANCE FOR DIRECTING PARTICLES FROM THE LIQUID THROUGH SAID ATTRACTING ELECTRODE MEANS INTO SAID RECEIVING MEANS.
Claim 2
Dependent Claim
100 words
AN ELECTROHYDRODYNAMIC PRECIPITATOR COMPRISING: CONDUIT MEANS DEFINING A FLOW PATH FOR A LIQUID AND PARTICLES TO BE REMOVED FROM THE LIQUID, SAID CONDUIT MEANS HAVING AN OPENING; PRECIPITATE RECEIVING MEANS COMMUNICATING WITH SAID FLOW PATH THROUGH AN ENTRANCE DEFINED BY SAID OPENING; IONIZING MEANS IN SAID FLOW PATH AND ON ONE SIDE OF SAID ENTRANCE TO SAID RECEIVING MEANS FOR IONIZING PARTICLES TO BE REMOVED FROM THE LIQUID; AND PARTICLE-PREVIOUS ATTRACTING ELECTRODE MEANS LOCATED OUTSIDE SAID FLOW PATH ON THE OTHER SIDE OF SAID ENTRANCE FOR DIRECTING PARTICLES FROM THE LIQUID THROUGH SAID ATTRACTING ELECTRODE MEANS INTO SAID RECEIVING MEANS.
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |