Patent US598640A successfully refreshed from Google Patents.
Patent US2748060A successfully refreshed from Google Patents.
US2748060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon conversion process and apparatus therefor
Assignee: ExxonMobil Oil Corp
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Filing: 1952-05-09
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Granted: 1956-05-29
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Expires: 1972-05-09
Abstract
No abstract record available.
Inventors
- 👤 John S Hicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:58
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
THE METHOD OF CONTINUOUSLY CONTACTING A FLUID WITH GRANULAR CONTACT MATERIAL WHICH POSSESSES GOOD INSULATING QUALITIES AT HIGH TEMPERATURE WHICH COMPRISES: GRAVITATING SOLID CONTACT MATERIAL DOWNWARDLY THROUGH A CENTRAL REACTION ZONE AS A COMPACT COLUMN, PASSING A CONTACTING FLUID THROUGH THE CENTRAL REACTION ZONE, SO AS TO CONTACT THE GRANULAR MATERIAL, GRAVITATING A LATERALLY SEPARATED ANNULAR COLUMN OF SAID CONTACT MATERIAL DOWNWARDLY ABOUT THE REACTION ZONE, AT ONLY A FRACTION OF THE MASS FLOW RATE OF THE COLUMN IN THE REACTION ZONE, SO AS TO INSULATE THE HOUSING WALL CONFINING SAID ANNULAR COLUMN, AND MAINTAIN IT AT A TEMPERATURE SUBSTANTIALLY BELOW THAT IN THE CONVERSION ZONE, AND INTRODUCING A SEAL GAS INTO THE ANNULAR COLUMN, AT A PRESSURE SUFFICIENTLY HIGH ONLY TO KEEP CONTACTING FLUID OUT OF SAID ANNULAR COLUMN.
Claim 2
Independent Claim
130 words
THE METHOD OF CONTINUOUSLY CONTACTING A FLUID WITH GRANULAR CONTACT MATERIAL WHICH POSSESSES GOOD INSULATING QUALITIES AT HIGH TEMPERATURE WHICH COMPRISES: GRAVITATING SOLID CONTACT MATERIAL DOWNWARDLY THROUGH A CENTRAL REACTION ZONE AS A COMPACT COLUMN, PASSING A CONTACTING FLUID THROUGH THE CENTRAL REACTION ZONE, SO AS TO CONTACT THE GRANULAR MATERIAL, GRAVITATING A LATERALLY SEPARATED ANNULAR COLUMN OF SAID CONTACT MATERIAL DOWNWARDLY ABOUT THE REACTION ZONE, AT ONLY A FRACTION OF THE MASS FLOW RATE OF THE COLUMN IN THE REACTION ZONE, SO AS TO INSULATE THE HOUSING WALL CONFINING SAID ANNULAR COLUMN, AND MAINTAIN IT AT A TEMPERATURE SUBSTANTIALLY BELOW THAT IN THE CONVERSION ZONE, AND INTRODUCING A SEAL GAS INTO THE ANNULAR COLUMN, AT A PRESSURE SUFFICIENTLY HIGH ONLY TO KEEP CONTACTING FLUID OUT OF SAID ANNULAR COLUMN.
References Cited (Backward Citations)
US2215532A
Cited
US2548286A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |