Patent US2677604A successfully refreshed from Google Patents.
US2677604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Contacting solids and fluids
Assignee: Standard Oil Development Co
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Filing: 1946-12-14
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Granted: 1954-05-04
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Expires: 1966-12-14
Abstract
No abstract record available.
Inventors
- 👤 Karl J Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:10
CPC Classifications
C; C10; C10B; C10B49/00; C10B49/16; C10B49/20; C10B49/22; Y; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
187 words
THE METHOD OF CONTACTING FLUIDS WITH A DENSE TURBULENT MASS OF FINELY DIVIDED SOLIDS HAVING A WELL DEFINED UPPER LEVEL IN A TREATING ZONE AT CONSTANT CONDITIONS OF TREATING TEMPERATURE AND SOLIDS RESIDENCE TIME, WHICH COMPRISES PASSING SAID FLUIDS UPWARDLY THROUGH SAID MASS, SUPPLYING A SUBSTANTIALLY CONSTANT AMOUNT OF FINELY DIVIDED SOLIDS HEATED TO A TEMPERATURE NOT BELOW SAID TREATING TEMPERATURE AT A SUBSTANTIALLY CONSTANT TEMPERATURE TO SAID MASS TO SUPPLY A CONSTANT AMOUNT OF HEAT THERETO, SAID AMOUNT OF HEAT BEING SUFFICIENT TO MAINTAIN SAID TEMPERATURE, FEEDING A STREAM OF FRESH FINELY DIVIDED SOLIDS HAVING A TEMPERATURE SUBSTANTIALLY BELOW SAID TREATING TEMPERATURE TO SAID MASS, SAID HEATED FINELY DIVIDED SOLIDS BEING SUPPLIED INDEPENDENTLY OF SAID FRESH SOLIDS, WITHDRAWING A STREAM OF FINELY DIVIDED TREATED SOLIDS FROM SAID MASS, CHANGING THE RATE OF FLOW OF SAID STREAM OF FRESH SOLIDS IN THE SAME DIRECTION AS SAID TREATING TEMPERATURE CHANGES SO AS TO MAINTAIN SAID TREATING TEMPERATURE SUBSTANTIALLY CONSTANT AND CHANGING THE RATE OF FLOW OF SAID TREATED SOLIDS IN THE SAME DIRECTION AS THE HEIGHT OF SAID MASS CHANGES SO AS TO MAINTAIN SAID LEVEL SUBSTANTIALLY CONSTANT.
Claim 2
Independent Claim
187 words
THE METHOD OF CONTACTING FLUIDS WITH A DENSE TURBULENT MASS OF FINELY DIVIDED SOLIDS HAVING A WELL DEFINED UPPER LEVEL IN A TREATING ZONE AT CONSTANT CONDITIONS OF TREATING TEMPERATURE AND SOLIDS RESIDENCE TIME, WHICH COMPRISES PASSING SAID FLUIDS UPWARDLY THROUGH SAID MASS, SUPPLYING A SUBSTANTIALLY CONSTANT AMOUNT OF FINELY DIVIDED SOLIDS HEATED TO A TEMPERATURE NOT BELOW SAID TREATING TEMPERATURE AT A SUBSTANTIALLY CONSTANT TEMPERATURE TO SAID MASS TO SUPPLY A CONSTANT AMOUNT OF HEAT THERETO, SAID AMOUNT OF HEAT BEING SUFFICIENT TO MAINTAIN SAID TEMPERATURE, FEEDING A STREAM OF FRESH FINELY DIVIDED SOLIDS HAVING A TEMPERATURE SUBSTANTIALLY BELOW SAID TREATING TEMPERATURE TO SAID MASS, SAID HEATED FINELY DIVIDED SOLIDS BEING SUPPLIED INDEPENDENTLY OF SAID FRESH SOLIDS, WITHDRAWING A STREAM OF FINELY DIVIDED TREATED SOLIDS FROM SAID MASS, CHANGING THE RATE OF FLOW OF SAID STREAM OF FRESH SOLIDS IN THE SAME DIRECTION AS SAID TREATING TEMPERATURE CHANGES SO AS TO MAINTAIN SAID TREATING TEMPERATURE SUBSTANTIALLY CONSTANT AND CHANGING THE RATE OF FLOW OF SAID TREATED SOLIDS IN THE SAME DIRECTION AS THE HEIGHT OF SAID MASS CHANGES SO AS TO MAINTAIN SAID LEVEL SUBSTANTIALLY CONSTANT.
Claim 3
Dependent Claim
27 words
THE PROCESS OF CLAIM 1 WHEREIN SAID FRESH SOLIDS ARE CARBONACEOUS, SAID GAS COMPRISES STEAM AND SAID TREATING CONDITIONS ARE CONDUCIVE TO THE FORMATION OF WATER GAS.
References Cited (Backward Citations)
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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) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |