US2833838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and process for high temperature conversions
Assignee: —
•
Filing: —
•
Granted: 1958-05-06
•
Expires: 1975-05-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:31
CPC Classifications
C; C10; C10G; C10G11/00; C10G11/14; C10G11/18; B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01J8/0015; B01J8/003; B01J8/087; B01J8/18; B01J8/24; B01J8/26; B01J2208/00; B01J2208/00796; B01J2208/00823; B01J2208/00831; B01J2208/0084
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
227 words
A PROCESS FOR CONDUCTING HIGH TEMPERATURE REACTIONS AT VERY CONTACT TIMES OF CONTROLLED DURATION WHICH COMPRISES ESTABLISHING A REACTION ZONE SURROUNDED BY SAID COMMUNICATING AT ITS LOWER OPEN END WITH AN INTERMEDIATE POINT IN A QUENCHING ZONE, PASSING A PRIMARY STREAM OF HOT GRANULAR SOLIDS DOWNWARDLY BY GRAVITY AS A MOVING BED INDIRECTLY THROUGH SAID QUENCHING ZONE AND DIRECTLY INTO SAID REACTION ZONE AND THEN FROM ITS LOWER OPEN END DIRECTLY INTO SAID QUENCHING ZONE, PASSING A SECONDARY STREAM OFCOLD GRANULAR SOLIDS DOWNWARDLY BY GRAVITY AS A MOVING BED ENTIRELY AROUND SAID REACTION ZONE THROUGH SAID QUENCHING ZONE, PASSING SAID SOLIDS AS A MIXED WARM STREAM FROM THE BOTTOM THEREOF INTO A SOLIDS PRESSURE FEEDING ZONE, RAISING THE PRESSURE OF FLUIDS IN THE INTERSTICES OF SAID WARM SOLIDS THEREIN TO A PRESSURE SUBSTANTIALLY ABOVE THAT OF SAID REACTION AND QUENCHING ZONES, PASSING THE THUS PRESSURED SOLIDS THROUGH AN ELONGATED SOLIDS CONVEYANCE AND COOLING ZONE AS AN UPWARDLY MOVING BED CONCURRENTLY WITH A CONVEYANCE FLUID TO COOL THE SOLIDS AND HEAT THE FLUID, APPLYING A FORCE AGAINST A MASS OF SOLIDS DISCHARGING AT THE OUTLET OF SAID SOLIDS CONVEYANCE AND COOLING ZONE TO MAINTAIN SAID SOLIDS THEREIN AS A MOVING MASS HAVING SUBSTANTIALLY THE SOLIDS'' STATIC BULK DENSITY, PASSING A PRIMARY STREAM OF SAID SOLIDS DOWNWARDLY THROUGH A HEATING ZONE TO FORM SAID PRIMARY STREAM OF HOT SOLIDS,
Claim 2
Dependent Claim
227 words
A PROCESS FOR CONDUCTING HIGH TEMPERATURE REACTIONS AT VERY CONTACT TIMES OF CONTROLLED DURATION WHICH COMPRISES ESTABLISHING A REACTION ZONE SURROUNDED BY SAID COMMUNICATING AT ITS LOWER OPEN END WITH AN INTERMEDIATE POINT IN A QUENCHING ZONE, PASSING A PRIMARY STREAM OF HOT GRANULAR SOLIDS DOWNWARDLY BY GRAVITY AS A MOVING BED INDIRECTLY THROUGH SAID QUENCHING ZONE AND DIRECTLY INTO SAID REACTION ZONE AND THEN FROM ITS LOWER OPEN END DIRECTLY INTO SAID QUENCHING ZONE, PASSING A SECONDARY STREAM OFCOLD GRANULAR SOLIDS DOWNWARDLY BY GRAVITY AS A MOVING BED ENTIRELY AROUND SAID REACTION ZONE THROUGH SAID QUENCHING ZONE, PASSING SAID SOLIDS AS A MIXED WARM STREAM FROM THE BOTTOM THEREOF INTO A SOLIDS PRESSURE FEEDING ZONE, RAISING THE PRESSURE OF FLUIDS IN THE INTERSTICES OF SAID WARM SOLIDS THEREIN TO A PRESSURE SUBSTANTIALLY ABOVE THAT OF SAID REACTION AND QUENCHING ZONES, PASSING THE THUS PRESSURED SOLIDS THROUGH AN ELONGATED SOLIDS CONVEYANCE AND COOLING ZONE AS AN UPWARDLY MOVING BED CONCURRENTLY WITH A CONVEYANCE FLUID TO COOL THE SOLIDS AND HEAT THE FLUID, APPLYING A FORCE AGAINST A MASS OF SOLIDS DISCHARGING AT THE OUTLET OF SAID SOLIDS CONVEYANCE AND COOLING ZONE TO MAINTAIN SAID SOLIDS THEREIN AS A MOVING MASS HAVING SUBSTANTIALLY THE SOLIDS'' STATIC BULK DENSITY, PASSING A PRIMARY STREAM OF SAID SOLIDS DOWNWARDLY THROUGH A HEATING ZONE TO FORM SAID PRIMARY STREAM OF HOT SOLIDS,
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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) | 1961-05-05 | 1961-11-04 | 1962-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-05 | 1965-11-04 | 1966-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-05 | 1969-11-04 | 1970-05-06 | $7700.00 | Window Closed / Lapsed |