US2719112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contacting gases with fluidized subdivided solids
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1951-02-28
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Granted: 1955-09-27
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Expires: 1971-02-28
Abstract
No abstract record available.
Inventors
- 👤 Kenneth K Kearby
- 👤 Walter G May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:07
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/38; B01J8/384; B01J8/386
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF CONTACTING SOLIDS WITH THE GASES, WHICH COMPRISES MAINTAINING IN A CONTACTING ZONE A SUBSTANTIALLY CYLINDRICAL COLUMN OF SUBDIVIDED SOLIDS, INJECTING SOLIDS SUSPENDED IN A GASIFORM MEDIUM INTO THE PERIPHERY OF SAID COLUMN IN ALONG A NON-RADICAL, SECANT PATH AT A VELOCITY OF 10 TO 500 FEET PER SECOND SUFFICIENT TO MAINTAIN THE SOLIDS IN SAID COLUMN IN THE FORM OF A DENSE, TURBULENT, FLUIDIZED MASS AND TO IMPOSE A VORTEX FLOW ON SAID COLUMN, WITHDRAWING GASIFORM MEDIUM UPWARDLY FROM SAID COLUMN, AND WITHDRAWING SOLIDS DOWNWARDLY FROM SAID COLUMN SEPARATELY FROM SAID WITHDRAWN GASIFORM MEDIUM.
Claim 2
Independent Claim
97 words
THE METHOD OF CONTACTING SOLIDS WITH THE GASES, WHICH COMPRISES MAINTAINING IN A CONTACTING ZONE A SUBSTANTIALLY CYLINDRICAL COLUMN OF SUBDIVIDED SOLIDS, INJECTING SOLIDS SUSPENDED IN A GASIFORM MEDIUM INTO THE PERIPHERY OF SAID COLUMN IN ALONG A NON-RADICAL, SECANT PATH AT A VELOCITY OF 10 TO 500 FEET PER SECOND SUFFICIENT TO MAINTAIN THE SOLIDS IN SAID COLUMN IN THE FORM OF A DENSE, TURBULENT, FLUIDIZED MASS AND TO IMPOSE A VORTEX FLOW ON SAID COLUMN, WITHDRAWING GASIFORM MEDIUM UPWARDLY FROM SAID COLUMN, AND WITHDRAWING SOLIDS DOWNWARDLY FROM SAID COLUMN SEPARATELY FROM SAID WITHDRAWN GASIFORM MEDIUM.
References Cited (Backward Citations)
US2374518A
Cited
US2394651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |