Patent US3259734A successfully refreshed from Google Patents.
US3259734A
Expired / Lapsed
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Computer control of external reflux to a fractionating column
Assignee: Electronic Associates Inc
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Filing: 1963-01-02
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Granted: 1966-07-05
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Expires: 1983-01-02
Abstract
No abstract record available.
Inventors
- 👤 Jr George R Marr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:27
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/56; B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/4216; Y; Y10; Y10S; Y10S203/00; Y10S203/19; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/7722; Y10T137/7758; Y10T137/7759
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
A COMPUTER FOR CONTROLLING THE APPLICATION OF EXTERNAL REFLUX TO A DISTILLATION COLUMN, THE COMPUTER COMPRISING; MEANS FOR SENSING THE TEMPERATURE DIFFERENCE BETWEEN OVERHEAD REFLUX STREAMS OF THE DISTILLATION COLUMN AND APPLYING THE SAID TEMPERATURE DIFFERENCE AS AN ELECTRICAL SIGNAL TO THE COMPUTER, MEANS FOR MULTIPLYING THE TEMPERATURE DIFFERENCE SIGNAL BY AN ELECTRICAL SIGNAL REPRESENTING A PREDETERMINED CONSTANT, FUNCTION GENERATOR MEANS FOR GENERATING A SIGNAL REPRESENTING A FUNCTION OF SAID CONSTANT TIMES SAID TEMPERATURE DIFFERENCE, MEANS FOR SUBSTRACTING SAID LAST-NAMED SIGNAL FROM NUMERICAL 1, AND AND MEANS FOR MULTIPLYING THE RESULT OF THE SUBSTRACTION OPERATION BY THE SQUARE OF THE DESIRED INTERNAL REFLUX MASS FLOW RATE TO OBTAIN THE SQUARE OF THE EXTERNAL REFLUX FLOW RATE WHICH WOULD BE REQUIRED TO PROVIDE THE DESIRED INTERNAL REFLUX FLOW RATE.
Claim 2
Dependent Claim
128 words
A COMPUTER FOR CONTROLLING THE APPLICATION OF EXTERNAL REFLUX TO A DISTILLATION COLUMN, THE COMPUTER COMPRISING; MEANS FOR SENSING THE TEMPERATURE DIFFERENCE BETWEEN OVERHEAD REFLUX STREAMS OF THE DISTILLATION COLUMN AND APPLYING THE SAID TEMPERATURE DIFFERENCE AS AN ELECTRICAL SIGNAL TO THE COMPUTER, MEANS FOR MULTIPLYING THE TEMPERATURE DIFFERENCE SIGNAL BY AN ELECTRICAL SIGNAL REPRESENTING A PREDETERMINED CONSTANT, FUNCTION GENERATOR MEANS FOR GENERATING A SIGNAL REPRESENTING A FUNCTION OF SAID CONSTANT TIMES SAID TEMPERATURE DIFFERENCE, MEANS FOR SUBSTRACTING SAID LAST-NAMED SIGNAL FROM NUMERICAL 1, AND AND MEANS FOR MULTIPLYING THE RESULT OF THE SUBSTRACTION OPERATION BY THE SQUARE OF THE DESIRED INTERNAL REFLUX MASS FLOW RATE TO OBTAIN THE SQUARE OF THE EXTERNAL REFLUX FLOW RATE WHICH WOULD BE REQUIRED TO PROVIDE THE DESIRED INTERNAL REFLUX FLOW RATE.
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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |