US2637633A
Expired / Lapsed
US
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Apparatus for stripping fluid type catalysts
Assignee: Phillips Petroleum Co
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Filing: 1948-10-18
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Granted: 1953-05-05
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Expires: 1968-10-18
Abstract
No abstract record available.
Inventors
- 👤 Strunk Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:58
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/18; B01J8/1818; B01J8/1827; B01J8/24; Y; Y10; Y10S; Y10S159/00; Y10S159/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A REACTION VESSEL FOR EFFECTING CONTACT BETWEEN FLUIDIZED SOLID CONTACT PARTICLES AND A REACTANT GAS AND THEN STRIPPING SAID PARTICLES OF SAID GAS BY CONTACT WITH A STRIPPING GAS, WHICH COMPRISES IN COMBINATION AN ENCLOSED UPRIGHT CYLINDRICAL VESSEL HAVING A GAS OUTLET IN THE UPPER END THEREOF AND A CONICAL BOTTOM EXTENDING DOWNWARDLY THEREFROM AT AN ANGLE IN THE RANGE OF 15 TO 75* TO A SOLIDS OUTLET AT ITS APEX; A SERIES OF RADIALLY DISPOSED UPRIGHT INVERTED L-SHAPED MEMBERS FIXED ON AND EXTENDING ALONG AN INTERMEDIATE SECTION OF THE INSIDE SURFACE OF SAID CONICAL BOTTOM SO AS TO FORM A SERIES OF RADIAL STRIPPING CHANNELS HIGHER AND NARROWER AT THEIR LOWER THAN AT THEIR UPPER ENDS THEREBY PROVIDING MORE UNIFORM CROSS SECTIONAL AREA THAN WOULD BE PROVIDED WITH ENDS OF SIMILAR CROSS-SECTION, THE UPPER SECTIONS OF SAID L-SHAPED MEMBERS ADJOINING THE
Claim 2
Dependent Claim
142 words
A REACTION VESSEL FOR EFFECTING CONTACT BETWEEN FLUIDIZED SOLID CONTACT PARTICLES AND A REACTANT GAS AND THEN STRIPPING SAID PARTICLES OF SAID GAS BY CONTACT WITH A STRIPPING GAS, WHICH COMPRISES IN COMBINATION AN ENCLOSED UPRIGHT CYLINDRICAL VESSEL HAVING A GAS OUTLET IN THE UPPER END THEREOF AND A CONICAL BOTTOM EXTENDING DOWNWARDLY THEREFROM AT AN ANGLE IN THE RANGE OF 15 TO 75* TO A SOLIDS OUTLET AT ITS APEX; A SERIES OF RADIALLY DISPOSED UPRIGHT INVERTED L-SHAPED MEMBERS FIXED ON AND EXTENDING ALONG AN INTERMEDIATE SECTION OF THE INSIDE SURFACE OF SAID CONICAL BOTTOM SO AS TO FORM A SERIES OF RADIAL STRIPPING CHANNELS HIGHER AND NARROWER AT THEIR LOWER THAN AT THEIR UPPER ENDS THEREBY PROVIDING MORE UNIFORM CROSS SECTIONAL AREA THAN WOULD BE PROVIDED WITH ENDS OF SIMILAR CROSS-SECTION, THE UPPER SECTIONS OF SAID L-SHAPED MEMBERS ADJOINING THE
References Cited (Backward Citations)
US2443190A
Cited
US2415755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |