US3140240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for carbonizing coal
Assignee: Consolidation Coal Co
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Filing: 1960-07-21
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Granted: 1964-07-07
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Expires: 1980-07-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Donald Leigh Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:20
CPC Classifications
C; C10; C10B; C10B49/00; C10B49/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
171 words
THE METHOD OF CARBONIZING FINELY DIVIDED COAL TO PRODUCE THEREFROM A LIQUID DISTILLATE WHICH COMPRISES INTRODUCING SAID COAL IN THE FORM FO A SLURRY CONSISTING ESENTIALLY OF FINELY DIVIDED COAL AND WATER INTO A DISTILLATION VESSEL COMPRISING TWO WORMS ROTATING IN THE SAME DIRECTION AND MUTUALLY CLEANING ONE ANOTHER, CONCURRENTLY INTRODUCING AN INERT FINELY DIVIDED SOLID HEAT CARRIER INTO SAID DISTILLATION VESSEL, SAID INERT HEAT CARRIER BEING AT A TEMPERATURE ABOVE THE CARBONIZATION TEMPERATURE OF SAID COAL, INITIMATELY MIXING SAID SLURRY AND SAID INTER HEAT CARRIER BY MEANS OF SAID TWO WORMS IN SAID DISTILLATION VESSEL TO GENERATE A DILUENT GAS THEREIN BY VAPORIZING THE WATER IN SAID SLURRY INTO STEAM AND ALSO BY INTERMIXING SAID COAL WITH SAID INERT HEAT CARRIER EVOLVING A SUBSTANTIAL PORTION OF SAID DISTILLATE IN VAPOR FORM, SAID STEAM SERVING AS A SUBSTANTIALLY INERT DILUENT GAS FOR SAID DISTILLATE VAPORS AUTOGENOUSLY EVOLVED IN SAID DISTILLATION VESSEL, WITHDRAWING SAID MIXTURE OF STEAM AND DISTILLATE VAPOR FROM SAID DISTILLATION VESSEL, AND SEPARTING SAID DISTILLATE VAPOR FROM SAID STEAM.
Claim 2
Independent Claim
171 words
THE METHOD OF CARBONIZING FINELY DIVIDED COAL TO PRODUCE THEREFROM A LIQUID DISTILLATE WHICH COMPRISES INTRODUCING SAID COAL IN THE FORM FO A SLURRY CONSISTING ESENTIALLY OF FINELY DIVIDED COAL AND WATER INTO A DISTILLATION VESSEL COMPRISING TWO WORMS ROTATING IN THE SAME DIRECTION AND MUTUALLY CLEANING ONE ANOTHER, CONCURRENTLY INTRODUCING AN INERT FINELY DIVIDED SOLID HEAT CARRIER INTO SAID DISTILLATION VESSEL, SAID INERT HEAT CARRIER BEING AT A TEMPERATURE ABOVE THE CARBONIZATION TEMPERATURE OF SAID COAL, INITIMATELY MIXING SAID SLURRY AND SAID INTER HEAT CARRIER BY MEANS OF SAID TWO WORMS IN SAID DISTILLATION VESSEL TO GENERATE A DILUENT GAS THEREIN BY VAPORIZING THE WATER IN SAID SLURRY INTO STEAM AND ALSO BY INTERMIXING SAID COAL WITH SAID INERT HEAT CARRIER EVOLVING A SUBSTANTIAL PORTION OF SAID DISTILLATE IN VAPOR FORM, SAID STEAM SERVING AS A SUBSTANTIALLY INERT DILUENT GAS FOR SAID DISTILLATE VAPORS AUTOGENOUSLY EVOLVED IN SAID DISTILLATION VESSEL, WITHDRAWING SAID MIXTURE OF STEAM AND DISTILLATE VAPOR FROM SAID DISTILLATION VESSEL, AND SEPARTING SAID DISTILLATE VAPOR FROM SAID STEAM.
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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) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |