Patent US2519150A successfully refreshed from Google Patents.
US2519150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for stripping fluidized solids
Assignee: Gulf Oil Corp
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Filing: 1946-04-25
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Granted: 1950-08-15
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Expires: 1966-04-25
Abstract
No abstract record available.
Inventors
- 👤 Ostergaard Povl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:40
CPC Classifications
B; B01; B01J; B01J38/00; B01J38/04; B01J38/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
THE PROCESS OF STRIPPING ENTRAINED VAPORS FROM FINELY DIVIDED SOLIDS MAINTAINED IN FLUIDIZED CONDITION WHICH COMPRISES PASSING A STREAM OF SAID FLUIDIZED SOLIDS COMMINGLED WITH ENTRAINED VAPORS THROUGH A STRIPPING ZONE IN A PATH FOLLOWING A SUBSTANTIALLY CONTINUOUS DOWNWARD PROGRESSION, SIMULTANEOUSLY PASSING A STREAM OF INERT GASEOUS STRIPPING MEDIUM THROUGH SAID STRIPPING ZONE IN A DIFFERENT PATH FOLLOWING A SUBSTANTIALLY CONTINUOUS UPWARD PROGRESSION, INTERMITTENTLY AND AT LEAST TWICE INTERSECTING THE TWO PATHS WHILE SAID STREAM OF FLUIDIZED SOLIDS IS AT A DENSITY SUBSTANTIALLY HIGHER THAN THAT EXISTING IMMEDIATELY AFTER INTERSECTION OF THE TWO PATHS, PASSING THE DOWNFLOWING STREAM OF FLUIDIZED SOLIDS THROUGH A DOWNWARDLY INCLINED CONSTRICTED PASSAGE OF GRADUALLY DIMINISHING CROSS SECTION TO THE SUBSTANTIAL EXCLUSION OF THE UPWARDLY PROGRESSING GASEOUS STRPPING MEDIUM AFTER EACH INTERSECTION OF THE TWO PATHS, AND WITHDRAWING FROM THE BOTTOM OF THE STRIPPING ZONE A STREAM OF FLUIDIZED SOLIDS SUBSTANTIALLY FREE FROM ENTRAINED VAPORS.
Claim 2
Dependent Claim
149 words
THE PROCESS OF STRIPPING ENTRAINED VAPORS FROM FINELY DIVIDED SOLIDS MAINTAINED IN FLUIDIZED CONDITION WHICH COMPRISES PASSING A STREAM OF SAID FLUIDIZED SOLIDS COMMINGLED WITH ENTRAINED VAPORS THROUGH A STRIPPING ZONE IN A PATH FOLLOWING A SUBSTANTIALLY CONTINUOUS DOWNWARD PROGRESSION, SIMULTANEOUSLY PASSING A STREAM OF INERT GASEOUS STRIPPING MEDIUM THROUGH SAID STRIPPING ZONE IN A DIFFERENT PATH FOLLOWING A SUBSTANTIALLY CONTINUOUS UPWARD PROGRESSION, INTERMITTENTLY AND AT LEAST TWICE INTERSECTING THE TWO PATHS WHILE SAID STREAM OF FLUIDIZED SOLIDS IS AT A DENSITY SUBSTANTIALLY HIGHER THAN THAT EXISTING IMMEDIATELY AFTER INTERSECTION OF THE TWO PATHS, PASSING THE DOWNFLOWING STREAM OF FLUIDIZED SOLIDS THROUGH A DOWNWARDLY INCLINED CONSTRICTED PASSAGE OF GRADUALLY DIMINISHING CROSS SECTION TO THE SUBSTANTIAL EXCLUSION OF THE UPWARDLY PROGRESSING GASEOUS STRPPING MEDIUM AFTER EACH INTERSECTION OF THE TWO PATHS, AND WITHDRAWING FROM THE BOTTOM OF THE STRIPPING ZONE A STREAM OF FLUIDIZED SOLIDS SUBSTANTIALLY FREE FROM ENTRAINED VAPORS.
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) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |