Patent US2994646A successfully refreshed from Google Patents.
US2994646A
Expired / Lapsed
US
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Process control system
Assignee: Phillips Petroleum Co
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Filing: 1958-07-07
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Granted: 1961-08-01
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Expires: 1978-07-07
Abstract
No abstract record available.
Inventors
- 👤 Louis D Kleiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:15
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/425; Y; Y10; Y10S; Y10S203/00; Y10S203/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN A FLUID MIXTURE SEPARATION SYSTEM WHEREIN A FLUID MIXTURE TO BE SEPARATED IS INTRODUCED INTO A SEPARATION COLUMN HAVING FIRST AND SECOND ENDS, A FIRST PRODUCT STREAM IS WITHDRAWN FROM SAID FIRST END OF SAID COLUMN, AND A SECOND PRODUCT STREAM IS WITHDRAWN FROM SAID SECOND END OF SAID COLUMN, A CONTROL SYSTEM COMPRISING AN ANALYZER ADAPTED TO PROVIDE A FIRST SIGNAL REPRESENTATIVE OF THE COMPOSITION OF A SAMPLE SUPPLIED THERETO AT A PREDETERMINED TIME INTERVAL FOLLOWING INTRODUCTION OF THE SAMPLE TO THE ANALYZER, CONDUIT MEANS COMMUNICATING BETWEEN SAID COLUMN AND SAID ANALYZER TO DIRECT SAMPLES OF FLUID FROM SAID COLUMN TO SAID ANALYZER, VALVE MEANS IN SAID CONDUIT MEANS, TIMING MEANS TO ACTUATE SAID VALVE MEANS PERIODICALLY TO OPEN SAID VALVE MEANS TO PERMIT FLOW OF FLUID THROUGH SAID CONDUIT MEANS, SIGNAL STORAGE MEANS ACTUATED BY SAID FIRST SIGNAL, MEANS TO
Claim 2
Dependent Claim
143 words
IN A FLUID MIXTURE SEPARATION SYSTEM WHEREIN A FLUID MIXTURE TO BE SEPARATED IS INTRODUCED INTO A SEPARATION COLUMN HAVING FIRST AND SECOND ENDS, A FIRST PRODUCT STREAM IS WITHDRAWN FROM SAID FIRST END OF SAID COLUMN, AND A SECOND PRODUCT STREAM IS WITHDRAWN FROM SAID SECOND END OF SAID COLUMN, A CONTROL SYSTEM COMPRISING AN ANALYZER ADAPTED TO PROVIDE A FIRST SIGNAL REPRESENTATIVE OF THE COMPOSITION OF A SAMPLE SUPPLIED THERETO AT A PREDETERMINED TIME INTERVAL FOLLOWING INTRODUCTION OF THE SAMPLE TO THE ANALYZER, CONDUIT MEANS COMMUNICATING BETWEEN SAID COLUMN AND SAID ANALYZER TO DIRECT SAMPLES OF FLUID FROM SAID COLUMN TO SAID ANALYZER, VALVE MEANS IN SAID CONDUIT MEANS, TIMING MEANS TO ACTUATE SAID VALVE MEANS PERIODICALLY TO OPEN SAID VALVE MEANS TO PERMIT FLOW OF FLUID THROUGH SAID CONDUIT MEANS, SIGNAL STORAGE MEANS ACTUATED BY SAID FIRST SIGNAL, MEANS TO
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |