Patent US4947207A successfully refreshed from Google Patents.
Patent US3107982A successfully refreshed from Google Patents.
US3107982A
Expired / Lapsed
US
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Continuously operating liquid-liquid extraction apparatus
Assignee: ABB Norden Holding AB
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Filing: 1960-04-06
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Granted: 1963-10-22
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Expires: 1980-04-06
Abstract
No abstract record available.
Inventors
- 👤 Lindstrom Olle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:21
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01D11/0484; B01D11/0426; B01D11/0438
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN CONTINUOUSLY OPERATING LIQUID-LIQUID EXTRACTION APPARATUS ADAPTED TO WORK WITH A FIRST LIQUID PHASE DISPERSED IN A CONTINUOUS SECOND LIQUID PHASE, SAID PHASES HAVING DIFFERENT DENSITIES AND FORMING A TRANSITION ZONE IN SAID EXTRACTION APPARATUS, AND SAID EXTRACTION APPARATUS HAVING INLET AND OUTLET MEANS FOR SAID FIRST LIQUID PHASE AND SAID SECOND LIQUID PHASE RESPECTIVELY, SAID OUTLET MEANS FOR SAID FIRST LIQUID PHASE AND SAID OUTLET MEANS FOR SAID SECOND LIQUID PHASE BEING POSITIONED AT DIFFERENT LEVELS, A HORIZONTAL BRANCH CONDUIT CONNECTED TOSAID EXTRACTION APPARATUS AT A LEVEL POSITIONED BETWEEN SAID LEVELS OF SAID OUTLET MEANS FOR SAID FIRST LIQUID PHASE, SAID BRANCH CONDUIT CONTAINING A CLEANING MEANS FOR REMOVING DISPERSED PARTICLES FROM A LIQUOR MIXTURE OF SAID TWO LIQUID PHASES WITHDRAWN FROM SAID EXTRACTION APPARATUS AND A REGULATING
Claim 2
Dependent Claim
129 words
IN CONTINUOUSLY OPERATING LIQUID-LIQUID EXTRACTION APPARATUS ADAPTED TO WORK WITH A FIRST LIQUID PHASE DISPERSED IN A CONTINUOUS SECOND LIQUID PHASE, SAID PHASES HAVING DIFFERENT DENSITIES AND FORMING A TRANSITION ZONE IN SAID EXTRACTION APPARATUS, AND SAID EXTRACTION APPARATUS HAVING INLET AND OUTLET MEANS FOR SAID FIRST LIQUID PHASE AND SAID SECOND LIQUID PHASE RESPECTIVELY, SAID OUTLET MEANS FOR SAID FIRST LIQUID PHASE AND SAID OUTLET MEANS FOR SAID SECOND LIQUID PHASE BEING POSITIONED AT DIFFERENT LEVELS, A HORIZONTAL BRANCH CONDUIT CONNECTED TOSAID EXTRACTION APPARATUS AT A LEVEL POSITIONED BETWEEN SAID LEVELS OF SAID OUTLET MEANS FOR SAID FIRST LIQUID PHASE, SAID BRANCH CONDUIT CONTAINING A CLEANING MEANS FOR REMOVING DISPERSED PARTICLES FROM A LIQUOR MIXTURE OF SAID TWO LIQUID PHASES WITHDRAWN FROM SAID EXTRACTION APPARATUS AND A REGULATING
References Cited (Backward Citations)
US2729549A
Cited
US2776193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-21 | 1967-04-22 | 1967-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-21 | 1971-04-22 | 1971-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-21 | 1975-04-22 | 1975-10-22 | $7700.00 | Window Closed / Lapsed |