Patent US2985565A successfully refreshed from Google Patents.
US2985565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fractionating tower control system
Assignee: Phillips Petroleum Co
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Filing: 1958-07-17
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Granted: 1961-05-23
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Expires: 1978-07-17
Abstract
No abstract record available.
Inventors
- 👤 Carnot E Bellinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:59
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/4227; Y; Y10; Y10S; Y10S203/00; Y10S203/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
FLUID SEPARATION APPARATUS COMPRISING A FRACTIONATION COLUMN HAVING A REBOILER; AN ACCUMULATOR; FIRST CONDUIT MEANS COMMUNICATING BETWEEN THE TOP OF SAID COLUMN AND SAID ACCUMULATOR; SECOND CONDUIT MEANS COMMUNICATING WITH SAID COLUMN AT A REGION INTERMEDIATE THE ENDS THEREOF TO INTRODUCE A FLUID FEED MIXTURE; THIRD AND FOURTH CONDUIT MEANS CONNECTED IN PARALLEL BETWEEN SAID ACCUMULATOR AND AN UPPER REGION OF SAID COLUMN TO RETURN FLUID TO SAID COLUMN AS REFLUX; FIFTH AND SIXTH CONDUIT MEANS COMMUNICATING WITH SAID REBOILER TO INTRODUCE A HEATING MEDIUM, SAID FOURTH CONDUIT MEANS BEING OF SMALLER CROSS-SECTIONAL AREA THAN SAID THIRD CONDUIT MEANS AND SAID SIXTH CONDUIT MEANS BEING OF SMALLER CROSS-SECTIONAL AREA THAN SAID FIFTH CONDUIT MEANS; FIRST, SECOND, THIRD AND FOURTH VALVES IN SAID THIRD, FOURTH, FIFTH AND SIXTH CONDUIT MEANS, RESPECTIVELY; MEANS RESPONSIVE TO THE RATE OF FLOW THROUGH SAID SECOND CONDUIT MEANS TO ADJUST SAID FIRST VALVE; MEANS RESPONSIVE TO THE RATE OF FLOW THROUGH SAID SECOND CONDUIT MEANS TO ADJUST SAID THIRD VALVE; MEANS RESPONSIVE TO THE COMPOSITION OF THE FLUID MIXTURE IN THE UPPER REGION OF SAID COLUMN TO ADJUST SAID SECOND VALVE; AND MEANS RESPONSIVE TO THE COMPOSITION OF THE FLUID MIXTURE IN THE LOWER REGION OF SAID COLUMN TO ADJUST SAID FOURTH VALVE.
Claim 2
Dependent Claim
207 words
FLUID SEPARATION APPARATUS COMPRISING A FRACTIONATION COLUMN HAVING A REBOILER; AN ACCUMULATOR; FIRST CONDUIT MEANS COMMUNICATING BETWEEN THE TOP OF SAID COLUMN AND SAID ACCUMULATOR; SECOND CONDUIT MEANS COMMUNICATING WITH SAID COLUMN AT A REGION INTERMEDIATE THE ENDS THEREOF TO INTRODUCE A FLUID FEED MIXTURE; THIRD AND FOURTH CONDUIT MEANS CONNECTED IN PARALLEL BETWEEN SAID ACCUMULATOR AND AN UPPER REGION OF SAID COLUMN TO RETURN FLUID TO SAID COLUMN AS REFLUX; FIFTH AND SIXTH CONDUIT MEANS COMMUNICATING WITH SAID REBOILER TO INTRODUCE A HEATING MEDIUM, SAID FOURTH CONDUIT MEANS BEING OF SMALLER CROSS-SECTIONAL AREA THAN SAID THIRD CONDUIT MEANS AND SAID SIXTH CONDUIT MEANS BEING OF SMALLER CROSS-SECTIONAL AREA THAN SAID FIFTH CONDUIT MEANS; FIRST, SECOND, THIRD AND FOURTH VALVES IN SAID THIRD, FOURTH, FIFTH AND SIXTH CONDUIT MEANS, RESPECTIVELY; MEANS RESPONSIVE TO THE RATE OF FLOW THROUGH SAID SECOND CONDUIT MEANS TO ADJUST SAID FIRST VALVE; MEANS RESPONSIVE TO THE RATE OF FLOW THROUGH SAID SECOND CONDUIT MEANS TO ADJUST SAID THIRD VALVE; MEANS RESPONSIVE TO THE COMPOSITION OF THE FLUID MIXTURE IN THE UPPER REGION OF SAID COLUMN TO ADJUST SAID SECOND VALVE; AND MEANS RESPONSIVE TO THE COMPOSITION OF THE FLUID MIXTURE IN THE LOWER REGION OF SAID COLUMN TO ADJUST SAID FOURTH VALVE.
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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |