US2717811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion apparatus
Assignee: ExxonMobil Oil Corp
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Filing: 1951-05-07
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Granted: 1955-09-13
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Expires: 1971-05-07
Abstract
No abstract record available.
Inventors
- 👤 Eric V Bergstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:34
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
APPARATUS FOR SEPARATING GRANULAR CONTACT MATERIAL, FINES AND LIFT GAS DISCHARGED AT A LEVEL SUBSTANTIALLY ABOVE THE GROUND FROM THE TOP END OF AN UPWARDLY DIRECTED LIFT PIPE COMPRISING IN COMBINATION: A SETTLING VESSEL ATTACHED TO THE UPPER END OF THE LIFT PIPE, HAVING A SUBSTANTIALLY LARGER CROSS-SECTION THAN SAID LIFT PIPE, THE PIPE TERMINATED INTERMEDIATE THE TOP AND BOTTOM OF THE VESSEL, BAFFLE MEANS LOCATED ABOVE SAID LIFT PIPE, SO AS TO DIRECT THE GRANULAR MATERIAL, FINES AND GAS IN A DOWNWARD DIRECTION, MEANS DEFINING AT LEAST ONE OUTLET APERTURE IN THE LOWER PORTION OF THE VESSEL, THROUGH WHICH GRANULAR MATERIAL CAN BE REMOVED, MEANS DEFINING AN UPWARDLY DIRECTED PASSAGEWAY IN SAID VESSEL, THE LOWER END OF THE
Claim 2
Dependent Claim
119 words
APPARATUS FOR SEPARATING GRANULAR CONTACT MATERIAL, FINES AND LIFT GAS DISCHARGED AT A LEVEL SUBSTANTIALLY ABOVE THE GROUND FROM THE TOP END OF AN UPWARDLY DIRECTED LIFT PIPE COMPRISING IN COMBINATION: A SETTLING VESSEL ATTACHED TO THE UPPER END OF THE LIFT PIPE, HAVING A SUBSTANTIALLY LARGER CROSS-SECTION THAN SAID LIFT PIPE, THE PIPE TERMINATED INTERMEDIATE THE TOP AND BOTTOM OF THE VESSEL, BAFFLE MEANS LOCATED ABOVE SAID LIFT PIPE, SO AS TO DIRECT THE GRANULAR MATERIAL, FINES AND GAS IN A DOWNWARD DIRECTION, MEANS DEFINING AT LEAST ONE OUTLET APERTURE IN THE LOWER PORTION OF THE VESSEL, THROUGH WHICH GRANULAR MATERIAL CAN BE REMOVED, MEANS DEFINING AN UPWARDLY DIRECTED PASSAGEWAY IN SAID VESSEL, THE LOWER END OF THE
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) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |