US2818325A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for contacting subdivided solid particles in a compact and moving bed
Assignee: Universal Oil Products Co
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Filing: 1950-11-30
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Granted: 1957-12-31
•
Expires: 1970-11-30
Abstract
No abstract record available.
Inventors
- 👤 Louis S Kassel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:39
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12; B01J8/125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A CONTACTING APPARATUS COMPRISING A VERTICALLY DISPOSED CHAMBER, A RISER CONDUIT EXTENDING UPWARDLY THOUGH THE CENTRAL PORTION OF THE CHAMBER AND TERMINATING IN AN OPEN END IN THE UPPER PORTION OF THE CHAMBER, MEANS FOR PASSING A MIXTURE OF SOLID PARTICLES AND FLUID UPWARDLY THROUGH SAID CONDUIT AND FOR MAINTAINING A BED OF THE SOLID PARTICLES IN THE CHAMBER AT A LEVEL BELOW SAID OPEN END OF THE CONDUIT, A PERFORATED VERTICAL CONDUIT WITHIN THE CHAMBER ON ONE SIDE OF SAID RISER CONDUIT AND HAVING AN OPEN UPPER END NEARD TDHE UPPER OPEN END OF SAID RDISER CONDUIT, A SECOND PERFORATED VERTICAL CONDUIT WITHIN THE CHAMBER BELOW THE OPEN END OF SAID RISER CONDUIT AND DISPOSED LATERALLY OPPOSITE THE FIRST-MENTIONED PERFORATED CONDUIT ON THE OTHER SIDE OF THE RISEDR CONDUIT AND MEANS FOR REMOVING FLUID FROM SAID SECOND PERFORATED CONDUIT.
Claim 2
Dependent Claim
140 words
A CONTACTING APPARATUS COMPRISING A VERTICALLY DISPOSED CHAMBER, A RISER CONDUIT EXTENDING UPWARDLY THOUGH THE CENTRAL PORTION OF THE CHAMBER AND TERMINATING IN AN OPEN END IN THE UPPER PORTION OF THE CHAMBER, MEANS FOR PASSING A MIXTURE OF SOLID PARTICLES AND FLUID UPWARDLY THROUGH SAID CONDUIT AND FOR MAINTAINING A BED OF THE SOLID PARTICLES IN THE CHAMBER AT A LEVEL BELOW SAID OPEN END OF THE CONDUIT, A PERFORATED VERTICAL CONDUIT WITHIN THE CHAMBER ON ONE SIDE OF SAID RISER CONDUIT AND HAVING AN OPEN UPPER END NEARD TDHE UPPER OPEN END OF SAID RDISER CONDUIT, A SECOND PERFORATED VERTICAL CONDUIT WITHIN THE CHAMBER BELOW THE OPEN END OF SAID RISER CONDUIT AND DISPOSED LATERALLY OPPOSITE THE FIRST-MENTIONED PERFORATED CONDUIT ON THE OTHER SIDE OF THE RISEDR CONDUIT AND MEANS FOR REMOVING FLUID FROM SAID SECOND PERFORATED CONDUIT.
References Cited (Backward Citations)
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US2487961A
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US2440475A
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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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |