Patent US2818324A successfully refreshed from Google Patents.
US2818324A
Expired / Lapsed
US
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Liquid-liquid extraction columns
Assignee: Individual
•
Filing: 1954-06-25
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Granted: 1957-12-31
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Expires: 1974-06-25
Abstract
No abstract record available.
Inventors
- 👤 Thornton John Desmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:43
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01D11/0426; B01D11/043; B01D11/0438
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A LIQUID-LIQUID EXTRACTION COLUMN COMPRISING A PACKED COLUMN, AN INLET PIPE FOR THE DISPERSED LIQUID PHASE AND AN OUTLET PIPE FOR THE CONTINUOUS LIQUID PHASSE LOCATED IN DIRECT COMMUNICATION WITDH THE LIQUID IN THE LOWER PART OF SAID COLUMN, AN INLET PIPE FOR THE CONTINUOUS LIQUID PHASE AND AN OUTLET PIPE FOR THE DISPERSED LIQUID PHASE LOCATED IN DIRECT COMMUNICATION WITH THE LIQUID IN THE UPPER PART OF SAID COLUMN, A TUBE HAVING ONE END COMMUNICATING WITH LIQUID IN THE LOWER PART OF SAID COLUMN AND HAVING ITS UPPER END LOCATED AVOVE THE LEVEL OF SAID OUTLETR PIPE FOR THE DISPERSED PLHASE, AND A PISTON AND CYLINDER CONNECTED TO THE UPPER END OF SAID TUBE FOR APPLYING A PULSATING PNEUMATIC PRESSURE TO THE
Claim 2
Dependent Claim
123 words
A LIQUID-LIQUID EXTRACTION COLUMN COMPRISING A PACKED COLUMN, AN INLET PIPE FOR THE DISPERSED LIQUID PHASE AND AN OUTLET PIPE FOR THE CONTINUOUS LIQUID PHASSE LOCATED IN DIRECT COMMUNICATION WITDH THE LIQUID IN THE LOWER PART OF SAID COLUMN, AN INLET PIPE FOR THE CONTINUOUS LIQUID PHASE AND AN OUTLET PIPE FOR THE DISPERSED LIQUID PHASE LOCATED IN DIRECT COMMUNICATION WITH THE LIQUID IN THE UPPER PART OF SAID COLUMN, A TUBE HAVING ONE END COMMUNICATING WITH LIQUID IN THE LOWER PART OF SAID COLUMN AND HAVING ITS UPPER END LOCATED AVOVE THE LEVEL OF SAID OUTLETR PIPE FOR THE DISPERSED PLHASE, AND A PISTON AND CYLINDER CONNECTED TO THE UPPER END OF SAID TUBE FOR APPLYING A PULSATING PNEUMATIC PRESSURE TO THE
References Cited (Backward Citations)
FR513747A
Cited
US1509686A
Cited
US1740105A
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US1780853A
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US2183837A
Cited
US2364892A
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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) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |