US2593404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sealing hydrocarbon conversion housings
Assignee: Houdry Process Corp
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Filing: 1947-12-31
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Granted: 1952-04-22
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Expires: 1967-12-31
Abstract
No abstract record available.
Inventors
- 👤 John W Barker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:51
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1881; B01J8/08; B01J8/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
IN A HYDROCARBON CONVERSION SYSTEM IN WHICH SOLID CONTACT MATERIAL IS PASSED CYCLICALLY THROUGH SEPARATE ZONES WHEREIN SAID MATERIAL IS CONTACTED WITH DIFFERENT GASES UNDER DIFFERENT GASEOUS PRESSURES THE METHOD OF TRANSFERRING SAID CONTACT MATERIAL BETWEEN SAID ZONES WHILE MAINTAINING A SUBSTANTIAL GAS SEAL THEREBETWEEN WHICH COMPRISES THE STEPS OF PASSING SAID CONTACT MATERIAL FROM THE CONTACT ZONE OF LOWER GASEOUS PRESSURE DOWNWARDLY IN A CONFINED PATH AS A COMPACT MOVING COLUMN, ELEVATING SAID CONTACT MATERIAL FROM THE LOWER END OF SAID COLUMN THROUGH AN ELONGATED CONFINED ELEVATOR PATH HAVING SUBSTANTIALLY UNIFORM PRESSURE THROUGHOUT, PASSING ALL SAID CONTACT MATERIAL FROM THE TOP OF SAID ELEVATOR PATH DOWNWARDLY IN A SECOND CONFINED PATH, SAID CONTACT MATERIAL GRAVITATING AS A COMPACT MOVING COLUMN THROUGH AT LEAST A PORTION OF SAID SECOND CONFINED PATH, ELEVATING SAID CONTACT MATERIAL FROM THE LOWER END OF SAID SECOND CONFINED PATH THROUGH A SECOND ELONGATED CONFINED ELEVATOR PATH HAVING SUBSTANTIALLY UNIFORM PRESSURE THROUGH-
Claim 2
Dependent Claim
156 words
IN A HYDROCARBON CONVERSION SYSTEM IN WHICH SOLID CONTACT MATERIAL IS PASSED CYCLICALLY THROUGH SEPARATE ZONES WHEREIN SAID MATERIAL IS CONTACTED WITH DIFFERENT GASES UNDER DIFFERENT GASEOUS PRESSURES THE METHOD OF TRANSFERRING SAID CONTACT MATERIAL BETWEEN SAID ZONES WHILE MAINTAINING A SUBSTANTIAL GAS SEAL THEREBETWEEN WHICH COMPRISES THE STEPS OF PASSING SAID CONTACT MATERIAL FROM THE CONTACT ZONE OF LOWER GASEOUS PRESSURE DOWNWARDLY IN A CONFINED PATH AS A COMPACT MOVING COLUMN, ELEVATING SAID CONTACT MATERIAL FROM THE LOWER END OF SAID COLUMN THROUGH AN ELONGATED CONFINED ELEVATOR PATH HAVING SUBSTANTIALLY UNIFORM PRESSURE THROUGHOUT, PASSING ALL SAID CONTACT MATERIAL FROM THE TOP OF SAID ELEVATOR PATH DOWNWARDLY IN A SECOND CONFINED PATH, SAID CONTACT MATERIAL GRAVITATING AS A COMPACT MOVING COLUMN THROUGH AT LEAST A PORTION OF SAID SECOND CONFINED PATH, ELEVATING SAID CONTACT MATERIAL FROM THE LOWER END OF SAID SECOND CONFINED PATH THROUGH A SECOND ELONGATED CONFINED ELEVATOR PATH HAVING SUBSTANTIALLY UNIFORM PRESSURE 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) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |