US2493218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-solid contact process
Assignee: ExxonMobil Oil Corp
•
Filing: 1945-12-04
•
Granted: 1950-01-03
•
Expires: 1965-12-04
Abstract
No abstract record available.
Inventors
- 👤 Eric V Bergstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:44
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/08; B01J8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN A GAS-SOLID CONTACTING PROCESS THE STEPS; PASSING A STREAM OF PARTICLE FORM SOLID CONTACT MASS MATERIAL DOWNWARDLY THROUGH AN ELONGATED, INCLINED FEET ZONE UNTIL THE SMALLER SIZED PARTICLES CONCENTRATE ON THE UNDERSIDE OF SAID STREAM, DIRECTING SAID STREAM INTO A SUBSTANTIALLY VERTICAL, CONFINED CONTACTING ZONE SO THAT THE UNDERSIDE OF SAID STREAM CONTAINING THE CONCENTRATION OF SMALLER PARTICLES PASSES TO ONE SIDE OF SAID CONTACTING ZONE AND THE UPPER SIDE OF SAID STREAM CONTAINING THE LARGER PARTICLES PASSES TO THE OPPOSITE SIDE OF SAID ZONE, PASSING SAID CONTRACT MATERIAL THROUGH SAID CONTACTING ZONE AS A SUBSTANTIALLY COMPACT COLUMN, WITHDRAWING CONTACTED CONTACT MATERIAL FROM THE LOWER SECTION OF SAID CONTACTING ZONE, INTRODUCING CONTACTING GAS INTO SAID CONTRACTING ZONE ALONG THAT SIDE ON WHICH THE SMALLER SOLID PARTICLES ARE CONCENTRATED, PASSING SAID GAS THROUGH SAID COLUMN OF CONTACT MATERIAL AND WITHDRAWING SAID GAS FROM THAT SIDE OF SAID CONTACTING ZONE ON WHICH THE LARGER SOLID PARTICLES ARE CONCENTRATED.
Claim 2
Dependent Claim
157 words
IN A GAS-SOLID CONTACTING PROCESS THE STEPS; PASSING A STREAM OF PARTICLE FORM SOLID CONTACT MASS MATERIAL DOWNWARDLY THROUGH AN ELONGATED, INCLINED FEET ZONE UNTIL THE SMALLER SIZED PARTICLES CONCENTRATE ON THE UNDERSIDE OF SAID STREAM, DIRECTING SAID STREAM INTO A SUBSTANTIALLY VERTICAL, CONFINED CONTACTING ZONE SO THAT THE UNDERSIDE OF SAID STREAM CONTAINING THE CONCENTRATION OF SMALLER PARTICLES PASSES TO ONE SIDE OF SAID CONTACTING ZONE AND THE UPPER SIDE OF SAID STREAM CONTAINING THE LARGER PARTICLES PASSES TO THE OPPOSITE SIDE OF SAID ZONE, PASSING SAID CONTRACT MATERIAL THROUGH SAID CONTACTING ZONE AS A SUBSTANTIALLY COMPACT COLUMN, WITHDRAWING CONTACTED CONTACT MATERIAL FROM THE LOWER SECTION OF SAID CONTACTING ZONE, INTRODUCING CONTACTING GAS INTO SAID CONTRACTING ZONE ALONG THAT SIDE ON WHICH THE SMALLER SOLID PARTICLES ARE CONCENTRATED, PASSING SAID GAS THROUGH SAID COLUMN OF CONTACT MATERIAL AND WITHDRAWING SAID GAS FROM THAT SIDE OF SAID CONTACTING ZONE ON WHICH THE LARGER SOLID PARTICLES ARE CONCENTRATED.
References Cited (Backward Citations)
US691209A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |