US2494337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for contacting finely divided solid particles with gaseous materials
Assignee: Standard Oil Development Co
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Filing: 1944-05-30
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Granted: 1950-01-10
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Expires: 1964-05-30
Abstract
No abstract record available.
Inventors
- 👤 Charles E Hemminger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:31
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/28; B01J8/1881; B01J8/189
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
AN APPARATUS FOR CONTACTING FINELY DIVIDED PARTICLES WITH A GASEOUS AGENT COMPRISING AN ENLARGED VERTICAL VESSEL, A PLURALITY OF PERFORATED DECKS MOUNTED IN VERTICALLY SPACED RELATION WITHIN SAID VESSEL, A SEPARATE CONDUIT EXTENDING THROUGH EACH OF SAID DECKS, THE UPPER END OF EACH OF SAID CONDUITS TERMINATING BELOW THE SUPERADJACENT DECK AND THE LOWER END OF EACH OF SAID CONDUITS TERMINATING ABOVE THE SUBADJACENT DECK BUT NOT HIGHER THAN THE UPPER END OF THE CONDUIT EXTENDING THROUGH SAID SUBADJACENT DECK, A TUBULAR MEMBER COMMUNICATING WITH THE UPPER END OF SAID VESSEL FOR INTRODUCING FINELY DIVIDED SOLIDS TO BE CONTACTED ON TO THE UPPERMOST PERFORATED DECK, A SECOND TUBULAR MEMBER EXTENDING THROUGH SAID LOWERMOST DECK AND TERMINATING BELOW THE DECK SUPERADJACENT THERETO FOR REMOVING FINELY DIVIDED SOLIDS FROM SAID LOWERMOST DECK, A CONDUIT COMMUNICATING WITH THE LOWER END OF SAID VESSEL FOR INTRODUCING A GASEOUS AGENT THEREIN BELOW SAID LOWERMOST DECK, A SECOND CONDUIT COMMUNICATING WITH THE UPPER END OF SAID VESSEL ABOVE THE UPPERMOST DECK FOR REMOVING GASEOUS AGENT FROM SAID VESSEL, WHEREBY THE GASEOUS AGENT MAY PASS UPWARDLY THROUGH
Claim 2
Independent Claim
180 words
AN APPARATUS FOR CONTACTING FINELY DIVIDED PARTICLES WITH A GASEOUS AGENT COMPRISING AN ENLARGED VERTICAL VESSEL, A PLURALITY OF PERFORATED DECKS MOUNTED IN VERTICALLY SPACED RELATION WITHIN SAID VESSEL, A SEPARATE CONDUIT EXTENDING THROUGH EACH OF SAID DECKS, THE UPPER END OF EACH OF SAID CONDUITS TERMINATING BELOW THE SUPERADJACENT DECK AND THE LOWER END OF EACH OF SAID CONDUITS TERMINATING ABOVE THE SUBADJACENT DECK BUT NOT HIGHER THAN THE UPPER END OF THE CONDUIT EXTENDING THROUGH SAID SUBADJACENT DECK, A TUBULAR MEMBER COMMUNICATING WITH THE UPPER END OF SAID VESSEL FOR INTRODUCING FINELY DIVIDED SOLIDS TO BE CONTACTED ON TO THE UPPERMOST PERFORATED DECK, A SECOND TUBULAR MEMBER EXTENDING THROUGH SAID LOWERMOST DECK AND TERMINATING BELOW THE DECK SUPERADJACENT THERETO FOR REMOVING FINELY DIVIDED SOLIDS FROM SAID LOWERMOST DECK, A CONDUIT COMMUNICATING WITH THE LOWER END OF SAID VESSEL FOR INTRODUCING A GASEOUS AGENT THEREIN BELOW SAID LOWERMOST DECK, A SECOND CONDUIT COMMUNICATING WITH THE UPPER END OF SAID VESSEL ABOVE THE UPPERMOST DECK FOR REMOVING GASEOUS AGENT FROM SAID VESSEL, WHEREBY THE GASEOUS AGENT MAY PASS UPWARDLY THROUGH
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) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |