US3756921A
Expired / Lapsed
US
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Splitter column overhead
Assignee: Universal Oil Products Co
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Filing: 1971-12-22
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Granted: 1973-09-04
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Expires: 1991-12-22
Abstract
Abstract THIS APPLICATION DISCLOSES AN OVERHEAD CONTROL SYSTEM FOR A GASOLINE SPLITTER COLUMN WHICH UTILIZES AN OCTANE MONITOR IN COMBINATION WITH FLOW MEASURING MEANS ON THE BOTTOM AND OVERHEAD STREAMS TO PRODUCE A CONTROLLED OVERHEAD VOLUMETRIC-OCTANE YIELD. THE BOTTOMS FLOW RATE MEANS CAN OVERRIDE THE OVERHEAD FLOW SIGNAL WHEN EXCESS QUANTITIES OF BOTTOMS ARE PRODUCED TO PREVENT THE COLUMN FROM EMPTYING.
Inventors
- 👤 W Bajek
- 👤 Laughlin J Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:43
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/4227; C; C10; C10G; C10G35/00; C10G35/24; C10G7/00; C10G7/12; C10L; C10L1/00; C10L1/04; C10L1/06; Y; Y10; Y10S; Y10S203/00; Y10S203/19; Y10S208/00; Y10S208/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |