US2631089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for conducting conversion operations
Assignee: Standard Oil Development Co
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Filing: 1950-08-16
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Granted: 1953-03-10
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Expires: 1970-08-16
Abstract
No abstract record available.
Inventors
- 👤 Jewell S Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:31
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1809; B01J8/0015; B01J8/0025; B01J8/24; C; C07; C07C; C07C45/00; C07C45/49; B01J2208/00; B01J2208/00008; B01J2208/00548; B01J2208/0061
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
APPARATUS FOR CONDUCTING CONVERSION OPERATIONS IN WHICH A DENSE PHASE OF FINELY DIVIDED FLUIDIZED SOLIDS IS MAINTAINED BELOW A DISPERSE PHASE OF SAID SOLIDS WHICH COMPRISES, IN COMBINATION, A VERTICALLY ELONGATED VESSEL; A FIRST CONDUIT COMMUNICATING WITH SAID VESSEL AT A LOW POINT THEREOF FOR CONVEYING A SUSPENSION OF FINELY DIVIDED SOLIDS IN A GASIFORM MEDIUM THERETO; A SECOND CONDUIT COMMUNICATING WITH SAID VESSEL AT A HIGH POINT THEREOF, HAVING A PORTION EXTENDING OUTWARDLY FROM SAID VESSEL FOR CONVEYING A SUSPENSION OF SAID SOLIDS IN A GASIFORM MEDIUM THEREFROM AND ALSO HAVING A PART PROJECTING DOWNWARDLY WITHIN SAID VESSEL TO AN INTERMEDIATE LEVEL PROVIDED WITH OPENINGS ALONG A SUBSTANTIAL LENGTH OF ITS LOWER PORTION; CONDUIT MEANS COMPRISING A PASSAGEWAY OF VARIABLE EFFECTIVE AREA COMMUNICATING WITH AND CONNECTING THE SPACE IN THE UPPER PART OF SAID VESSEL AND SAID SECOND CONDUIT; AND CONTROL MEANS FOR VARYING SAID EFFECTIVE AREA OF SAID PASSAGEWAY.
Claim 2
Dependent Claim
151 words
APPARATUS FOR CONDUCTING CONVERSION OPERATIONS IN WHICH A DENSE PHASE OF FINELY DIVIDED FLUIDIZED SOLIDS IS MAINTAINED BELOW A DISPERSE PHASE OF SAID SOLIDS WHICH COMPRISES, IN COMBINATION, A VERTICALLY ELONGATED VESSEL; A FIRST CONDUIT COMMUNICATING WITH SAID VESSEL AT A LOW POINT THEREOF FOR CONVEYING A SUSPENSION OF FINELY DIVIDED SOLIDS IN A GASIFORM MEDIUM THERETO; A SECOND CONDUIT COMMUNICATING WITH SAID VESSEL AT A HIGH POINT THEREOF, HAVING A PORTION EXTENDING OUTWARDLY FROM SAID VESSEL FOR CONVEYING A SUSPENSION OF SAID SOLIDS IN A GASIFORM MEDIUM THEREFROM AND ALSO HAVING A PART PROJECTING DOWNWARDLY WITHIN SAID VESSEL TO AN INTERMEDIATE LEVEL PROVIDED WITH OPENINGS ALONG A SUBSTANTIAL LENGTH OF ITS LOWER PORTION; CONDUIT MEANS COMPRISING A PASSAGEWAY OF VARIABLE EFFECTIVE AREA COMMUNICATING WITH AND CONNECTING THE SPACE IN THE UPPER PART OF SAID VESSEL AND SAID SECOND CONDUIT; AND CONTROL MEANS FOR VARYING SAID EFFECTIVE AREA OF SAID PASSAGEWAY.
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) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |