Patent US2936880A successfully refreshed from Google Patents.
Patent US2738263A successfully refreshed from Google Patents.
US2738263A
Expired / Lapsed
US
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Coal partial combustion with pure oxygen
Assignee: EIDP Inc
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Filing: 1950-05-29
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Granted: 1956-03-13
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Expires: 1970-05-29
Abstract
No abstract record available.
Inventors
- 👤 Luther C Peery
- 👤 George A Hickman
- 👤 Albert E Hirsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:01
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; C10J3/48; C10J3/485; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0933
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A PROCESS FOR THE PREPARATION OF CARBON MONOXIDE AND HYDROGEN BY PARTIAL OXIDATION OF COMMINUTED CARBONACCOUS MATERIAL IN A COMBUSTION ZONE WITH STEAM AND HIGHLY CONCENTRATED OXYGEN, THE STEPS WHICH COMPRISE MAINTAINING THE COMMINUTED CARBONACCOUS MATERIAL IN THE FORM OF A FLUIDIZED COLUMN OF CRUSHED SOLIDS EXERTING A PSEUDO HYDROSTATIC PRESSURE AT THE BASE THEREOF, PASSING THE CRUSHED SOLIDS FROM THE BASE OF SAID COLUMN INTO SUSPENSION WITH STEAM WHILE PULVERIZING THE CRUSHED SOLIDS, ADDING HIGHLY CONCENTRATED OXYGEN TO SAID SUSPENSION, THEN INJECTING THE CONSTITUENTS OF THE SUSPENSION INTO A REACTION ZONE AS A UNITARY COMBUSTION FLAME TO FORM CARBON MONOXIDE AND HYDROGEN AND MAINTAINING A PRESSURE AT THE BASE OF SAID COLUMN WHICH IS GREATER THAN THAT IN THE CRUSHED SOLID-STEAM SUSPENSION.
Claim 2
Dependent Claim
124 words
IN A PROCESS FOR THE PREPARATION OF CARBON MONOXIDE AND HYDROGEN BY PARTIAL OXIDATION OF COMMINUTED CARBONACCOUS MATERIAL IN A COMBUSTION ZONE WITH STEAM AND HIGHLY CONCENTRATED OXYGEN, THE STEPS WHICH COMPRISE MAINTAINING THE COMMINUTED CARBONACCOUS MATERIAL IN THE FORM OF A FLUIDIZED COLUMN OF CRUSHED SOLIDS EXERTING A PSEUDO HYDROSTATIC PRESSURE AT THE BASE THEREOF, PASSING THE CRUSHED SOLIDS FROM THE BASE OF SAID COLUMN INTO SUSPENSION WITH STEAM WHILE PULVERIZING THE CRUSHED SOLIDS, ADDING HIGHLY CONCENTRATED OXYGEN TO SAID SUSPENSION, THEN INJECTING THE CONSTITUENTS OF THE SUSPENSION INTO A REACTION ZONE AS A UNITARY COMBUSTION FLAME TO FORM CARBON MONOXIDE AND HYDROGEN AND MAINTAINING A PRESSURE AT THE BASE OF SAID COLUMN WHICH IS GREATER THAN THAT IN THE CRUSHED SOLID-STEAM SUSPENSION.
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) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |