US3127248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst tube assembly
Assignee: —
•
Filing: —
•
Granted: 1964-03-31
•
Expires: 1981-03-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:31
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; B01J2208/00061; B01J2208/00106; B01J2208/00168; B01J2208/00477; B01J2208/00495
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
CATALYST TUBE ASSEMBLY WITH IMPROVED LOWER GAS SEALING CLOSURE FOR HIGH TEMPERATURE SERVICE, WHICH COMPRISES A VERTICALLY ORIENTED CYLINDRICAL OUTER TUBE, A CYLINDRICAL INNER TUBE COAXIALLY ALIGNED WITHIN SAID OUTER TUBE, SOLID CATALYST PARTICLES DISPOSED IN THE ANNULAR SPACE BETWEEN SAID INNER TUBE AND SAID OUTER TUBE, GAS INLET MEANS AT THE UPPER END OF SAID OUTER TUBE FOR PASSAGE OF PROCESS GAS INTO THE ANNLAR SPACE BETWEEN SAID INNER TUBE AND SAID OUTER TUBE, SAID INNER TUBE TERMINATING ABOVE THE LOWER END OF SAID OUTER TUBE AND BEING PROVIDED WITH AN OPENING AT ITS LOWER END FOR INLET OF CATALYTICALLY CONVERTED PROCESS GAS, THE UPPER END OF SAID INNER TUPE TERMINATING AT AN OUTLET FOR REMOVAL OF CONVERTED PROCESS GAS FROM THE CATALYST TUBE ASSEMBLY, A CLOSURE NECK BEING THE LOWER END OF SAID OUTER TUBE, SAID CLOSURE NECK BEING PROVIDED WITH IN INTERNAL STRAIGHT THREAD SECTION, A THREADED PLUG, SAID PLUG BEING SCREWED INTO THE THREADED SECTION OF SAID NECK, THE THREADS OF SAID PLUG BEING SUBSTANTIALLY FREE OF COMPRESSION, AND AN OUTER GAS SEALING
Claim 2
Dependent Claim
177 words
CATALYST TUBE ASSEMBLY WITH IMPROVED LOWER GAS SEALING CLOSURE FOR HIGH TEMPERATURE SERVICE, WHICH COMPRISES A VERTICALLY ORIENTED CYLINDRICAL OUTER TUBE, A CYLINDRICAL INNER TUBE COAXIALLY ALIGNED WITHIN SAID OUTER TUBE, SOLID CATALYST PARTICLES DISPOSED IN THE ANNULAR SPACE BETWEEN SAID INNER TUBE AND SAID OUTER TUBE, GAS INLET MEANS AT THE UPPER END OF SAID OUTER TUBE FOR PASSAGE OF PROCESS GAS INTO THE ANNLAR SPACE BETWEEN SAID INNER TUBE AND SAID OUTER TUBE, SAID INNER TUBE TERMINATING ABOVE THE LOWER END OF SAID OUTER TUBE AND BEING PROVIDED WITH AN OPENING AT ITS LOWER END FOR INLET OF CATALYTICALLY CONVERTED PROCESS GAS, THE UPPER END OF SAID INNER TUPE TERMINATING AT AN OUTLET FOR REMOVAL OF CONVERTED PROCESS GAS FROM THE CATALYST TUBE ASSEMBLY, A CLOSURE NECK BEING THE LOWER END OF SAID OUTER TUBE, SAID CLOSURE NECK BEING PROVIDED WITH IN INTERNAL STRAIGHT THREAD SECTION, A THREADED PLUG, SAID PLUG BEING SCREWED INTO THE THREADED SECTION OF SAID NECK, THE THREADS OF SAID PLUG BEING SUBSTANTIALLY FREE OF COMPRESSION, AND AN OUTER GAS SEALING
References Cited (Backward Citations)
US1246164A
Cited
US1902862A
Cited
US1958582A
Cited
US2289271A
Cited
US2203840A
Cited
US2634194A
Cited
US2677601A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-03-31 | 1967-09-30 | 1968-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-31 | 1971-09-30 | 1972-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-31 | 1975-09-30 | 1976-03-31 | $7700.00 | Window Closed / Lapsed |