Patent US2704154A successfully refreshed from Google Patents.
US2704154A
Expired / Lapsed
US
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Elutriator for use with regenerator vessel of a catalytic cracking apparatus
Assignee: Eastern States Petroleum Co Inc
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Filing: 1949-10-24
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Granted: 1955-03-15
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Expires: 1969-10-24
Abstract
No abstract record available.
Inventors
- 👤 Huth Dwight Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:40
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/005; B01J8/0065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AN APPARATUS OF THE CHARACTER DESCRIBED INCLUDING A CASING, AN AIR INLET LINE CONNECTED TO THE LOWER END OF SAID CASING, MEANS FOR SUPPLYING AND FORCING AN AIR STREAM UPWARDLY THROUGH THE CASING IN A DIRECTION OPPOSED TO THE MOVEMENT OF CATALYST MATERIAL MOVING THROUGH SAID CASING WITH A SUFFICIENT VELOCITY TO CARRY RELATIVELY FINE CATALYST MATERIAL PARTICLES UPWARDLY THEREWITH, AND BAFFLES HAVING RELATIVELY SMALL CENTRALLY LOCATED VERTICAL OPENINGS THERETHROUGH MOUNTED PERPENDICULARLY TO AND TRANSVERSELY WITHIN SAID CASING FOR IMPEDING THE DOWNWARD MOVEMENT OF THE CATALYST MATERIAL AS THE AIR STREAM MOVES UPWARDLY WHEREBY AGITATION OF THE CATALYST MATERIAL WITHIN THE CASING IS PRODUCED AND ALSO WHEREBY THE FINE PARTICLES OF CATALYST MATERIAL ARE ENTRAINED AND CARRIED ALONG BY THE AIR STREAM.
Claim 2
Independent Claim
122 words
AN APPARATUS OF THE CHARACTER DESCRIBED INCLUDING A CASING, AN AIR INLET LINE CONNECTED TO THE LOWER END OF SAID CASING, MEANS FOR SUPPLYING AND FORCING AN AIR STREAM UPWARDLY THROUGH THE CASING IN A DIRECTION OPPOSED TO THE MOVEMENT OF CATALYST MATERIAL MOVING THROUGH SAID CASING WITH A SUFFICIENT VELOCITY TO CARRY RELATIVELY FINE CATALYST MATERIAL PARTICLES UPWARDLY THEREWITH, AND BAFFLES HAVING RELATIVELY SMALL CENTRALLY LOCATED VERTICAL OPENINGS THERETHROUGH MOUNTED PERPENDICULARLY TO AND TRANSVERSELY WITHIN SAID CASING FOR IMPEDING THE DOWNWARD MOVEMENT OF THE CATALYST MATERIAL AS THE AIR STREAM MOVES UPWARDLY WHEREBY AGITATION OF THE CATALYST MATERIAL WITHIN THE CASING IS PRODUCED AND ALSO WHEREBY THE FINE PARTICLES OF CATALYST MATERIAL ARE ENTRAINED AND CARRIED ALONG BY THE AIR STREAM.
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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) | 1958-03-14 | 1958-09-13 | 1959-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-14 | 1962-09-13 | 1963-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-14 | 1966-09-13 | 1967-03-15 | $7700.00 | Window Closed / Lapsed |