Patent US1576348A successfully refreshed from Google Patents.
Patent US3144301A successfully refreshed from Google Patents.
US3144301A
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Removal of carbon dioxde from gaseous mixtures
Assignee: Girdler Corp
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Filing: 1961-04-21
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Granted: 1964-08-11
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Expires: 1981-04-21
Abstract
No abstract record available.
Inventors
- 👤 Bertrand J Mayland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:17
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/10; C10K1/12; C10K1/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A REGENERATIVE PROCESS FOR PURIFYING GASEOUS MIXTURES BY REMOVING CARBON DIOXIDE THEREFROM, IN WHICH PROCESS THE GASEOUS MIXTURES ARE BROUGHT INTO INTIMATE CONTACT WITH A SOLUTION OF POTASSIUM CARBONATE WHEREBY CARBON DIOXIDE IS ABSORBED FROM SAID GASEOUS MIXTURES WITH THE CONSEQUENT CONVERSION OF POTASSIUM CARBONATE TO POTASSIUM BICARBONATE, THE CONCENTRATIO OF THE SAID SOLUTION BEING EQUIVALENT TO THAT OF A WATER SOLUTION CONTAINING SUBSTANTIALLY 18% TO SUBSTANTIALLY 40% OF POTASSIUM CARBONATE, THE STEP OF MAINTAINING IN THE SOLUTION A CONTENT OF SUBSTANTIALLY 0.5% TO 2% OF AN AMINE CHOSEN FROM A GROUP CONSISTING OF MONOETHANOLAMINE AND DIETHANOLAMINE AND MIXTURES THEREOF, WHEREBY TO INCREASE THE EFFICIENCY OF THE PROCESS.
Claim 2
Dependent Claim
109 words
IN A REGENERATIVE PROCESS FOR PURIFYING GASEOUS MIXTURES BY REMOVING CARBON DIOXIDE THEREFROM, IN WHICH PROCESS THE GASEOUS MIXTURES ARE BROUGHT INTO INTIMATE CONTACT WITH A SOLUTION OF POTASSIUM CARBONATE WHEREBY CARBON DIOXIDE IS ABSORBED FROM SAID GASEOUS MIXTURES WITH THE CONSEQUENT CONVERSION OF POTASSIUM CARBONATE TO POTASSIUM BICARBONATE, THE CONCENTRATIO OF THE SAID SOLUTION BEING EQUIVALENT TO THAT OF A WATER SOLUTION CONTAINING SUBSTANTIALLY 18% TO SUBSTANTIALLY 40% OF POTASSIUM CARBONATE, THE STEP OF MAINTAINING IN THE SOLUTION A CONTENT OF SUBSTANTIALLY 0.5% TO 2% OF AN AMINE CHOSEN FROM A GROUP CONSISTING OF MONOETHANOLAMINE AND DIETHANOLAMINE AND MIXTURES THEREOF, WHEREBY TO INCREASE THE EFFICIENCY OF THE PROCESS.
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |