US2879148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of carbon monoxide from a solid fuel
Assignee: Texaco Inc
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Filing: 1955-12-06
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Granted: 1959-03-24
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Expires: 1975-12-06
Abstract
No abstract record available.
Inventors
- 👤 Harold V Atwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:26
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; C10J3/463; C10J3/466; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0933; Y; Y10; Y10S; Y10S48/00; Y10S48/02; Y10S48/04; Y10S48/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR THE GENERATION OF CARBON MONOXIDE AND HYDROGEN FROM POWERED CAKING COAL HAVING A VARIABLE SIZE RANGE SMALLER THAN ABOUT 40 MESH WHICH COMPRISES SUBJECTING SAID COAL TO PREOXIDATION WITH A LIMITED AMOUNT OF FREE OXYGEN, SEPARATING RESULTING PREOXIDIZED COAL INTO A COARSE FRACTION CONTAINING COARSE PARTICLES SUBSTANTALLY FREE FROM FINER PARTICLES AND A FINE FRACTION CONTAINING SUBSTANTIALLY OF SAID FINERE PARTICLES, REACTING SAID FINE FRACTION WITH FREE OXYGEN AND STEAM IN SUSPENSION UNDER CONDITIONS SUCH THAT THE CARBON CONTENT OF THE FUEL IN SAID FRACTION IS SUBSTANTIALLY COMPLETELY CONSUMED YIELDING HOT GASEOUS PRODUCTS COMPRISING CARBON DIOXIDE AND STEAM, PASSING SAID COARSE FRACTION SUBSTANTIALLY FREE FROM FINER PARTICLES INTO A SECOND REACTION ZONE,
Claim 2
Dependent Claim
115 words
A PROCESS FOR THE GENERATION OF CARBON MONOXIDE AND HYDROGEN FROM POWERED CAKING COAL HAVING A VARIABLE SIZE RANGE SMALLER THAN ABOUT 40 MESH WHICH COMPRISES SUBJECTING SAID COAL TO PREOXIDATION WITH A LIMITED AMOUNT OF FREE OXYGEN, SEPARATING RESULTING PREOXIDIZED COAL INTO A COARSE FRACTION CONTAINING COARSE PARTICLES SUBSTANTALLY FREE FROM FINER PARTICLES AND A FINE FRACTION CONTAINING SUBSTANTIALLY OF SAID FINERE PARTICLES, REACTING SAID FINE FRACTION WITH FREE OXYGEN AND STEAM IN SUSPENSION UNDER CONDITIONS SUCH THAT THE CARBON CONTENT OF THE FUEL IN SAID FRACTION IS SUBSTANTIALLY COMPLETELY CONSUMED YIELDING HOT GASEOUS PRODUCTS COMPRISING CARBON DIOXIDE AND STEAM, PASSING SAID COARSE FRACTION SUBSTANTIALLY FREE FROM FINER PARTICLES INTO A SECOND REACTION ZONE,
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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |