US3221475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wet electrostatic precipitator
Assignee: GEA Group AG
•
Filing: 1963-04-10
•
Granted: 1965-12-07
•
Expires: 1983-04-10
Abstract
No abstract record available.
Inventors
- 👤 Wiemer Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:56
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/01; B03C3/014; B03C3/02; B03C3/16; Y; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN THE METHOD FOR IMPROVING THE AMOUNT OF FINE DUST PRECIPITATED IN A WET ELECTRIC FILTER IN WHICH THE ENTERING RAW GAS IS FIRST SUBDIVIDED INTO TWO SEPARATE GAS STREAMS AND EACH STREAM IS SATURATED WITH A LIQUID AS IN A SCRUBBER OR WASHER, ITHE IMPROVEMENT COMPRISING SATURATING AND COOLING EACH SEPARATE STREAM AT A TEMPERATURE DIFFERENT FROM THE OTHER STREAM, MIXING THE SATURATED STREAMS TO FORM A MIST COMPOSED OF WATER DROPLETS AND DUST, AND THEN PASSING THE MIST OF MIXED STREAMS THROUGH AN ELECTRIC FILTER TO PRECIPITATE THE WATER DROPLETS AND THE DIST FORM THE GAS.
Claim 2
Dependent Claim
98 words
IN THE METHOD FOR IMPROVING THE AMOUNT OF FINE DUST PRECIPITATED IN A WET ELECTRIC FILTER IN WHICH THE ENTERING RAW GAS IS FIRST SUBDIVIDED INTO TWO SEPARATE GAS STREAMS AND EACH STREAM IS SATURATED WITH A LIQUID AS IN A SCRUBBER OR WASHER, ITHE IMPROVEMENT COMPRISING SATURATING AND COOLING EACH SEPARATE STREAM AT A TEMPERATURE DIFFERENT FROM THE OTHER STREAM, MIXING THE SATURATED STREAMS TO FORM A MIST COMPOSED OF WATER DROPLETS AND DUST, AND THEN PASSING THE MIST OF MIXED STREAMS THROUGH AN ELECTRIC FILTER TO PRECIPITATE THE WATER DROPLETS AND THE DIST FORM THE GAS.
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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) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |