US3237376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of selective absorption process and apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1962-06-15
•
Granted: 1966-03-01
•
Expires: 1982-06-15
Abstract
No abstract record available.
Inventors
- 👤 Robert D Bauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:58
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/42; B01D3/4211; B01D3/425; B01D53/00; B01D53/14; B01D53/1418; Y; Y10; Y10S; Y10S203/00; Y10S203/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
IN A SELECTIVE ABSORPTION PROCESS, WHEREIN A MULTICOMPONENT GAS FEED STREAM IS CONTACTED WITH A LIQUID SELECTIVE ABSORBENT IN A COLUMN, A GAS IS WITHDRAWN FROM THE TOP OF THE COLUMN, AND A WASH LIQUID STREAM IS INTRODUCED INTO THE COLUMN NEAR THE TOP THEREOF, THE IMPROVEMENT COMPRISING ESTABLISHING A FIRST SIGNAL DIRECTLY RESPONSIVE TO THE DIFFERENCE BETWEEN THE TERMPERATURE IN SAID COLUMN AT A PREDETERMINED POINT THEREIN AND A DESIRED TEMPERATURE; ESTABLISHING A SECOND SIGNAL DIRECTLY RESPONSIVE TO THE FLOW RATE OF SAID GAS FEED STREM; ESTABLISHING A THIRD SIGNAL DIRECTLY RESPONSIVE TO THE FLOW RATE OF SAID WASH LIQUID RSTREAM; ESTABLISHING A FOURTH SIGNAL DIRECTLY RESPONSIVE TO THE RATION BETWEEN THE SECOND AND THIRD SIG-
Claim 2
Dependent Claim
117 words
IN A SELECTIVE ABSORPTION PROCESS, WHEREIN A MULTICOMPONENT GAS FEED STREAM IS CONTACTED WITH A LIQUID SELECTIVE ABSORBENT IN A COLUMN, A GAS IS WITHDRAWN FROM THE TOP OF THE COLUMN, AND A WASH LIQUID STREAM IS INTRODUCED INTO THE COLUMN NEAR THE TOP THEREOF, THE IMPROVEMENT COMPRISING ESTABLISHING A FIRST SIGNAL DIRECTLY RESPONSIVE TO THE DIFFERENCE BETWEEN THE TERMPERATURE IN SAID COLUMN AT A PREDETERMINED POINT THEREIN AND A DESIRED TEMPERATURE; ESTABLISHING A SECOND SIGNAL DIRECTLY RESPONSIVE TO THE FLOW RATE OF SAID GAS FEED STREM; ESTABLISHING A THIRD SIGNAL DIRECTLY RESPONSIVE TO THE FLOW RATE OF SAID WASH LIQUID RSTREAM; ESTABLISHING A FOURTH SIGNAL DIRECTLY RESPONSIVE TO THE RATION BETWEEN THE SECOND AND THIRD SIG-
References Cited (Backward Citations)
US3123086A
Cited
US2519874A
Cited
US2580651A
Cited
FR1189909A
Cited
US2974100A
Cited
US2985565A
Cited
US3106462A
Cited
GB887295A
Cited
US3050450A
Cited
US3020213A
Cited
US3060662A
Cited
US3080219A
Cited
US3094482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |