Patent US2814360A successfully refreshed from Google Patents.
US2814360A
Expired / Lapsed
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Method of electrical precipitation
Assignee: Research Corp
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Filing: 1955-12-12
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Granted: 1957-11-26
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Expires: 1975-12-12
Abstract
No abstract record available.
Inventors
- 👤 Charles E Beaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:23
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/02; B03C3/16; Y; Y10; Y10S; Y10S55/00; Y10S55/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A METHOD OF RECOVERING VALUES FROM SULFATE PULP DIGESTION LIQUORS COMPRISING PASSING A STREAM OF HOT GASES HAVING SUSPENDED FUME FROM FURNACES BURNING BLACK LIQUOR DOWNWARDLY THROUGH A TREATING ZONE, PROGRESSIVELY CONDITIONING AND COOLING THE GASES WHILE IN SAID ZONE BY CONTINUOUSLY FLUSHING THE BOUNDARIES OF THE TREATING ZONE WITH A LIQUOR CONTAINING SOLUBLE PORTIONS FROM SULFATE DIGESTION WHEREBY THE CONCENTRATION OF THE LIQUOR IS SUBSTANTIALLY INCREASED, REVERSING THE FLOW OF THE GAS STREAM, DIVIDING THE FLOW OF THE GAS STREAM INTO MULTIPLE PARTS,
Claim 2
Independent Claim
84 words
A METHOD OF RECOVERING VALUES FROM SULFATE PULP DIGESTION LIQUORS COMPRISING PASSING A STREAM OF HOT GASES HAVING SUSPENDED FUME FROM FURNACES BURNING BLACK LIQUOR DOWNWARDLY THROUGH A TREATING ZONE, PROGRESSIVELY CONDITIONING AND COOLING THE GASES WHILE IN SAID ZONE BY CONTINUOUSLY FLUSHING THE BOUNDARIES OF THE TREATING ZONE WITH A LIQUOR CONTAINING SOLUBLE PORTIONS FROM SULFATE DIGESTION WHEREBY THE CONCENTRATION OF THE LIQUOR IS SUBSTANTIALLY INCREASED, REVERSING THE FLOW OF THE GAS STREAM, DIVIDING THE FLOW OF THE GAS STREAM INTO MULTIPLE PARTS,
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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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) | 1960-11-25 | 1961-05-27 | 1961-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-25 | 1965-05-27 | 1965-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-25 | 1969-05-27 | 1969-11-26 | $7700.00 | Window Closed / Lapsed |