Patent US3552934A successfully refreshed from Google Patents.
US3552934A
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Reaction vessel having internal recycle means
Assignee: BP Chemicals Ltd
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Filing: 1968-05-02
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Granted: 1971-01-05
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Expires: 1988-05-02
Abstract
Abstract A REACTION VESSEL WHICH IS A VESSEL DIVIDED BY A PARTITION INTO TWO ZONES WHICH INTERCOMMUNICATE ABOVE AND BELOW THE PARTITION. GAS INTRODUCED INTO THE LOWER PART OF ONE OF THE ZONES TO CREATE A DENSITY DIFFERENCE BETWEEN THE LIQUID CONTENTS OF THE TWO ZONES AND CAUSE THE LIQUID TO CIRCULATE. THE PARTITION HAS A HEAD WHICH IS A PLURALITY OF CHANNELS PROJECTING INTO ONE OF THE ZONES, TO ASSIST IN SEPARATION OF GAS FROM LIQUID AT THE TOP OF THE VESSEL AND THEREBY INCREASE THE CIRCULATION RATE. SLOTS MAY ALSO BE CUT IN THE PARTITION TO INCREASE THE CIRCULATION RATE.
Inventors
- 👤 David Anthony Claydon
- 👤 Julius Ernest Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:53
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/24; B01J19/2415; B01J19/242; B01J19/0053; B01J19/006; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00054; B01J2219/00056; B01J2219/00069; B01J2219/00168; B01J2219/00761; B01J2219/00763; B01J2219/00765; B01J2219/00768
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |