US3119378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Steam generation
Assignee: Combustion Engineering Inc
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Filing: 1956-06-26
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Granted: 1964-01-28
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Expires: 1976-06-26
Abstract
No abstract record available.
Inventors
- 👤 Leonard J Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:13
CPC Classifications
F; F22; F22B; F22B31/00; F22B31/0007; F22B31/0015; F22B31/0023; F23; F23C; F23C10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
206 words
THE METHOD OF HEATING A FLUID COMPRISING FLOWING UPWARDLY A FLUIDIZED BED OF DESCRETE OXIDATION CATALYST WHICH HAS AN ACTIVATION AND A DEACTIVATION TEMPERATURE WITH THE DEACTIVATON TEMPERATURE BEING WELL BELOW FLAME TEMPERATURE A FUEL-AIR MIXTURE TAT IS SUFFICIENTLY RICH IN FUEL SO THAT IT IS OUTSIDE THE RANGE OF INFLAMMABILITY, EFFECTING CATALYTIC OXIDATION OF HE FUEL WITHIN SAID BED TO THE EXTENT PERMITTED BY THE AIR CONTAINED IN SAID MIXTURE WHILE MAINTAINING THE TEMPERATURE OF THE CATALYST BELOW THE DEACTIVATION TEMPERATURE, PASSING THE REMAINDER OF SAID FUEL AND OTHER EFFLUENT FROM SAID BED UPWARDLY THROUGH ANOTHER FLUIDIZED BED OF DISCRETE INERT MATERIAL THAT IS UNAFFECTED BY FLAME COMBUSTION, THEREBY HEATING SAID MATERIAL SUBSTANTIALLY TO THE TEMPERATURE OF SAID EFFLUENT OXIDIZING SUFFICIENT FUEL IN SAID BED OF CATALYST TO RAISE THE TEMPERATURE OF SAID OTHER BED IN A SUFFICIENTLY HIGH VALUE SO AS TO OXIDIZE A FUEL-AIR MIXTURE THEREIN WHILE MAINTAINING THE CATALYST BELOW ITS DEACTIVATION TEMPERATURE, INTRODUCING SUFFICIENT AIR INTO THIS OTHER BED TO SUPPORT COMBUSTION OF THIS REMAINING PORTION OF THE FUEL, EFFECTING OXIDATION OF SAID REMAINING FUEL PORTION IN THIS OTHER BED, AND IMPARTING HEAT FROM SAID BED TO A FLUID BY PASSING A FLUID IN INDIRECT HEAT EXCHANGE RELATION WTIH SAID BEDS.
Claim 2
Independent Claim
206 words
THE METHOD OF HEATING A FLUID COMPRISING FLOWING UPWARDLY A FLUIDIZED BED OF DESCRETE OXIDATION CATALYST WHICH HAS AN ACTIVATION AND A DEACTIVATION TEMPERATURE WITH THE DEACTIVATON TEMPERATURE BEING WELL BELOW FLAME TEMPERATURE A FUEL-AIR MIXTURE TAT IS SUFFICIENTLY RICH IN FUEL SO THAT IT IS OUTSIDE THE RANGE OF INFLAMMABILITY, EFFECTING CATALYTIC OXIDATION OF HE FUEL WITHIN SAID BED TO THE EXTENT PERMITTED BY THE AIR CONTAINED IN SAID MIXTURE WHILE MAINTAINING THE TEMPERATURE OF THE CATALYST BELOW THE DEACTIVATION TEMPERATURE, PASSING THE REMAINDER OF SAID FUEL AND OTHER EFFLUENT FROM SAID BED UPWARDLY THROUGH ANOTHER FLUIDIZED BED OF DISCRETE INERT MATERIAL THAT IS UNAFFECTED BY FLAME COMBUSTION, THEREBY HEATING SAID MATERIAL SUBSTANTIALLY TO THE TEMPERATURE OF SAID EFFLUENT OXIDIZING SUFFICIENT FUEL IN SAID BED OF CATALYST TO RAISE THE TEMPERATURE OF SAID OTHER BED IN A SUFFICIENTLY HIGH VALUE SO AS TO OXIDIZE A FUEL-AIR MIXTURE THEREIN WHILE MAINTAINING THE CATALYST BELOW ITS DEACTIVATION TEMPERATURE, INTRODUCING SUFFICIENT AIR INTO THIS OTHER BED TO SUPPORT COMBUSTION OF THIS REMAINING PORTION OF THE FUEL, EFFECTING OXIDATION OF SAID REMAINING FUEL PORTION IN THIS OTHER BED, AND IMPARTING HEAT FROM SAID BED TO A FLUID BY PASSING A FLUID IN INDIRECT HEAT EXCHANGE RELATION WTIH SAID BEDS.
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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |