US3822193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for maintaining a divided accumulator
Assignee: Phillips Petroleum Co
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Filing: 1971-09-24
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Granted: 1974-07-02
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Expires: 1991-09-24
Abstract
Abstract A METHOD IS PROVIDED WHEREBY LIQUID PARAFFIN IS ACCUMULATED AND DISTRIBUTED FROM A VESSEL DIVIDED INTERNALLY BY A WEIR, SO THAT TWO DISPARATE STREAMS CAN BE MAINTAINED IN THE VESSEL WITH MIXING OF INLET MATERIALS ON ON SIDE OF THE WEIR WHILE MAINTAINING AN UNMIXED MATERIAL ON THE OTHER SIDE OF THE WIRE. IN ONE EMBODIMENT OF THE INVENTION ISOBUTANE REFLUX LIQUID IS MAINTAINED ON ONE SIDE OF THE WEIR AND OVERFLOWED INTO A SECOND ZONE WHERE IT IS MIXED WITH THE WET EFFLUENT FROM A FEED STREAM DRIER WHICH CONTAINS ISOBUTANE, OLEFINS, AND WATER. FEED WATER IS TRAPPED FROM THE MIXED STREAM AND DECANTED FROM THIS ZONE.
Inventors
- 👤 C Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:14
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/06; B; B01; B01D; B01D3/00; B01D3/14; C07; C07C; C07C7/00; C07C7/04
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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |