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Patent US3203871A successfully refreshed from Google Patents.
US3203871A
Expired / Lapsed
US
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Process control for fractionation column
Assignee: Phillips Petroleum Co
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Filing: 1960-10-03
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Granted: 1965-08-31
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Expires: 1980-10-03
Abstract
No abstract record available.
Inventors
- 👤 Merlin O Clark
- 👤 Jr William B Wyatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:08
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
156 words
A FRACTIONATION SYSTEM COMPRISING A FRACTIONATION COLUMN, FIRST CONDUIT MEANS COMMUNICATING WITH SAID COLUMN TO INTRODUCE A FEED MIXTURE, SECOND CONDUIT MEANS COMMUNICATING WITH A LOWER REGION OF SAID COLUMN TO WITHDRAW A KETTLE PRODUCT, AN ACCUMULATOR, A CONDENSER, THIRD CONDUIT MEANS COMMUNICATING BETWEEN AN UPPER REGION OF SAID COLUMN AND SAID ACCUMULATOR THROUGH SAID CONDENSER, FOURTH CONDUIT MEANS COMMUNICATING WITH SAID ACCUMULATOR TO REMOVE AN OVERHEAD PRODUCT, FIFTH CONDUIT MEANS COMMUNICATING BETWEEN SAID ACCUMULATOR AND AN UPPER REGION OF SAID COLUMN TO RETURN LIQUID TO SAID COLUMN AS EXTERNAL REFLUX, FIRST TEMPERATURE SENSING MEANS DISPOSED IN SAID FIFTH CONDUIT MEANS ADJACENT SAID COLUMN, SECOND TEMPERATURE SENSING MEANS DISPOSED IN SAID THIRD CONDUIT MEANS ADJACENT SAID COLUMN, MEANS RESPONSIVE TO SAID FIRST TEMPERATURE SENSING MEANS TO CONTROL THE RATE OF FLOW THROUGH SAID FIFTH CONDUIT MEANS, AND MEANS RESPONSIVE TO SAID SECOND TEMPERATURE SENSING MEANS TO CONTROL THE RATE OF FLOW THROUGH SAID FIRST CONDUIT MEANS.
Claim 2
Dependent Claim
156 words
A FRACTIONATION SYSTEM COMPRISING A FRACTIONATION COLUMN, FIRST CONDUIT MEANS COMMUNICATING WITH SAID COLUMN TO INTRODUCE A FEED MIXTURE, SECOND CONDUIT MEANS COMMUNICATING WITH A LOWER REGION OF SAID COLUMN TO WITHDRAW A KETTLE PRODUCT, AN ACCUMULATOR, A CONDENSER, THIRD CONDUIT MEANS COMMUNICATING BETWEEN AN UPPER REGION OF SAID COLUMN AND SAID ACCUMULATOR THROUGH SAID CONDENSER, FOURTH CONDUIT MEANS COMMUNICATING WITH SAID ACCUMULATOR TO REMOVE AN OVERHEAD PRODUCT, FIFTH CONDUIT MEANS COMMUNICATING BETWEEN SAID ACCUMULATOR AND AN UPPER REGION OF SAID COLUMN TO RETURN LIQUID TO SAID COLUMN AS EXTERNAL REFLUX, FIRST TEMPERATURE SENSING MEANS DISPOSED IN SAID FIFTH CONDUIT MEANS ADJACENT SAID COLUMN, SECOND TEMPERATURE SENSING MEANS DISPOSED IN SAID THIRD CONDUIT MEANS ADJACENT SAID COLUMN, MEANS RESPONSIVE TO SAID FIRST TEMPERATURE SENSING MEANS TO CONTROL THE RATE OF FLOW THROUGH SAID FIFTH CONDUIT MEANS, AND MEANS RESPONSIVE TO SAID SECOND TEMPERATURE SENSING MEANS TO CONTROL THE RATE OF FLOW THROUGH SAID FIRST CONDUIT MEANS.
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) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |