US2584378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow control of particles in fluidized processing
Assignee: Universal Oil Products Co
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Filing: 1949-12-23
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Granted: 1952-02-05
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Expires: 1969-12-23
Abstract
No abstract record available.
Inventors
- 👤 Beam Jon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:55
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/082; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/8593; Y10T137/85954
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
IN A CONTACTING PROCESS WHEREIN A STREAM OF FLUID IS PASSED UPWARDLY THROUGH A FLUIDIZED BED OF SUBDIVIDED SOLID PARTICLES TRANSFERRED FROM SAID ZONE AND SOLID PARTICLES TRANSFERRED FROM SAID ZONE TO ANOTHER ZONE, THE IMPROVEMENT WHICH COMPRISES CONTINUOUSLY WITHDRAWING SUBDIVIDED PARTICLES DOWNWARDLY FROM THE FLUIDIZED BED IN SAID CONTACTING ZONE IN A RELATIVELY DENSE PHASE FLUIDIZED COLUMN, DISCHARGING THE WITHDRAWN PARTICLES INTO A TRASFER CONDUIT DISPOSED TRANSVERSELY WITH RESPECT TO SAID COLUMN AND COMMUNICATING WITH SAID OTHER ZONE, MAINTAINING AT LEAST TWO JET STREAMS IN SAID CONDUIT BELOW SAID COLUMN, DIRECTING ONE OF SAID JET STREAMS UPWARDLY INTO SAID COLUMN IN A MANNER HINDERING THE DISCHARGE OF PARTICLES THEREFROM, AND DIRECTIONS ANOTHER OF SAID JET STREAMS AWAY FROM SAID COLUMN IN THE DIRECTION OF SAID OTHER ZONE.
Claim 2
Dependent Claim
128 words
IN A CONTACTING PROCESS WHEREIN A STREAM OF FLUID IS PASSED UPWARDLY THROUGH A FLUIDIZED BED OF SUBDIVIDED SOLID PARTICLES TRANSFERRED FROM SAID ZONE AND SOLID PARTICLES TRANSFERRED FROM SAID ZONE TO ANOTHER ZONE, THE IMPROVEMENT WHICH COMPRISES CONTINUOUSLY WITHDRAWING SUBDIVIDED PARTICLES DOWNWARDLY FROM THE FLUIDIZED BED IN SAID CONTACTING ZONE IN A RELATIVELY DENSE PHASE FLUIDIZED COLUMN, DISCHARGING THE WITHDRAWN PARTICLES INTO A TRASFER CONDUIT DISPOSED TRANSVERSELY WITH RESPECT TO SAID COLUMN AND COMMUNICATING WITH SAID OTHER ZONE, MAINTAINING AT LEAST TWO JET STREAMS IN SAID CONDUIT BELOW SAID COLUMN, DIRECTING ONE OF SAID JET STREAMS UPWARDLY INTO SAID COLUMN IN A MANNER HINDERING THE DISCHARGE OF PARTICLES THEREFROM, AND DIRECTIONS ANOTHER OF SAID JET STREAMS AWAY FROM SAID COLUMN IN THE DIRECTION OF SAID OTHER ZONE.
References Cited (Backward Citations)
US2416729A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-04 | 1955-08-06 | 1956-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-04 | 1959-08-06 | 1960-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-04 | 1963-08-06 | 1964-02-05 | $7700.00 | Window Closed / Lapsed |