US2654699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of discharging solids and gases from a fluidized bed
Assignee: Consolidation Coal Co
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Filing: 1948-07-22
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Granted: 1953-10-06
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Expires: 1968-07-22
Abstract
No abstract record available.
Inventors
- 👤 Carl E Lesher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:13
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; C10J3/54; B; B01; B01J; B01J8/00; B01J8/0015; B04; B04C; B04C5/00; B04C5/24; B04C5/26; B04C9/00; C10B; C10B49/00; C10B49/02; C10B49/04; C10B49/08; C10B49/10; C10J3/48; C10J3/482; C10J3/72; C10J3/82; C10J3/84; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0953; C10J2300/0973; C10J2300/0976
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
METHOD OF TREATING SOLIDS AND GASES WHICH COMPRISES CIRCULATING GASES THROUGH A BED OF FINELY DIVIDED CARBONACEOUS SOLIDS UNDER FLUIDIZING CONDITIONS IN A CONFINED CONTACTING ZONE WHICH IS MAINTAINED AT CARBONIZATION TEMPERATURE, CONDUCTING THE GASES, INCLUDING THE TARRY VAPOROUS PRODUCTS OF CARBONIZATION, ESCAPING FROM THE TOP OF SAID BED AND ALL SOLIDS ABOVE A PREDETERMINED LEVEL DOWN THROUGH SAID BED OUT OF DIRECT CONTACT WITH SAID BED BUT IN HEAT EXCHANGE RELATION WITH SAID BED, SEPARATING THE SOLIDS AND GASES WHILE BEING SO CIRCULATED THROUGH THE BED, AND WITHDRAWING SAID SEPARATED SOLIDS AND GASES FROM SAID FLUIDIZED BED.
References Cited (Backward Citations)
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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) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |