US2657121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic reactor
Assignee: Lummus Technology LLC
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Filing: 1946-10-03
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Granted: 1953-10-27
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Expires: 1966-10-03
Abstract
No abstract record available.
Inventors
- 👤 Jennings F Rollins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:47
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/0278
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
APPARATUS FOR CONDUCTING A CONTACT PROCESS INCLUDING A CASING FORMING A CLOSED CHAMBER TO CONTAIN A MASS OF DIVIDED SOLID CONTACT MATERIAL SAID CASING HAVING A CENTRAL PORT OF THE BOTTOM THEREOF AND AN OPENING SPACED ABOVE THE BOTTOM; AND MEANS FOR PASSING FLUID THROUGH SAID MASS INCLUDING A CONDUIT COMMUNICATING WITH THE UPPER PART OF THE CHAMBER, AN UPWARDLY REMOVABLE HEADER DISPOSED CENTRALLY WITHIN THE LOWER PORTION OF SAID CHAMBER AND HAVING A HOLLOW BODY PORTION LARGER THAN SAID BOTTOM PORT AND A REDUCED TUBULAR SPOUT-LIKE PORTION EXTENDING DOWNWARDLY FROM THE CENTER OF THE BOTTOM OF SAID BODY PORTION INTO SAID PORT, THE BODY PORTION RESTING UPON THE BOTTOM OF THE CHAMBER AROUND SAID PORT, PIPES EXTENDING LATERALLY OUTWARDLY FROM THE BODY PORTION OF THE HEADER, SAID PIPES BEING APERTURED THERALONG FOR PASSAGE OF FLUID, SLIPJOINT CONNECTIONS BETWEEN SAID PIPES AND THE HEADER BODY PERMITTING EXPANSION AND CONTRACTION OF THE PIPES UNDER TEMPERATURE CHANGES AND ALSO PERMITTING FREE OUTWARD WITHDRAWAL OF THE
Claim 2
Dependent Claim
163 words
APPARATUS FOR CONDUCTING A CONTACT PROCESS INCLUDING A CASING FORMING A CLOSED CHAMBER TO CONTAIN A MASS OF DIVIDED SOLID CONTACT MATERIAL SAID CASING HAVING A CENTRAL PORT OF THE BOTTOM THEREOF AND AN OPENING SPACED ABOVE THE BOTTOM; AND MEANS FOR PASSING FLUID THROUGH SAID MASS INCLUDING A CONDUIT COMMUNICATING WITH THE UPPER PART OF THE CHAMBER, AN UPWARDLY REMOVABLE HEADER DISPOSED CENTRALLY WITHIN THE LOWER PORTION OF SAID CHAMBER AND HAVING A HOLLOW BODY PORTION LARGER THAN SAID BOTTOM PORT AND A REDUCED TUBULAR SPOUT-LIKE PORTION EXTENDING DOWNWARDLY FROM THE CENTER OF THE BOTTOM OF SAID BODY PORTION INTO SAID PORT, THE BODY PORTION RESTING UPON THE BOTTOM OF THE CHAMBER AROUND SAID PORT, PIPES EXTENDING LATERALLY OUTWARDLY FROM THE BODY PORTION OF THE HEADER, SAID PIPES BEING APERTURED THERALONG FOR PASSAGE OF FLUID, SLIPJOINT CONNECTIONS BETWEEN SAID PIPES AND THE HEADER BODY PERMITTING EXPANSION AND CONTRACTION OF THE PIPES UNDER TEMPERATURE CHANGES AND ALSO PERMITTING FREE OUTWARD WITHDRAWAL OF THE
References Cited (Backward Citations)
US1233016A
Cited
US2431803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-26 | 1957-04-27 | 1957-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-26 | 1961-04-27 | 1961-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-26 | 1965-04-27 | 1965-10-27 | $7700.00 | Window Closed / Lapsed |