US2617274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for concentrating solutions
Assignee: Individual
•
Filing: 1950-02-02
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Granted: 1952-11-11
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Expires: 1970-02-02
Abstract
No abstract record available.
Inventors
- 👤 Joachim Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:21
CPC Classifications
B; B01; B01D; B01D1/00; B01D9/00; B01D9/0004; B01D9/0013; B01D9/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
IN A PROCESS OF CONCENTRATING LIQUIDS OUT OF WEAK DILUTIONS, THE STEPS OF SUBJECTING THE WEAK DILUTION TO A FREEZING ACTION, THEREBY CRYSTALLIZING THE DILUENT AND CONCENTRATING THE LIQUID, PREPARING A FINELY DIVIDED MASS OF THE CRYSTALS OBTAINED AND OF THE CONCENTRATED LIQUID, MOVING SAID MASS THROUGH A DISPLACEMENT ZONE, EVENLY DISTRIBUTING A DISPLACING LIQUID OVER THE CROSS SECTION OF SAID MASS AT THE EXIT END OF THE DISPLACEMENT ZONE, PASSING SAID DISPLACING LIQUID UNDER PRESSURE COUNTERCURRENT TO THE MASS, ALLOWING THE SECOND NAMED LIQUID TO DISPLACE THE CONCENTRATED LIQUID, AND WITHDRAWING THE CONCENTRATED LIQUID NEAR THE INGRESS END OF THE DISPLACEMENT ZONE.
Claim 2
Dependent Claim
103 words
IN A PROCESS OF CONCENTRATING LIQUIDS OUT OF WEAK DILUTIONS, THE STEPS OF SUBJECTING THE WEAK DILUTION TO A FREEZING ACTION, THEREBY CRYSTALLIZING THE DILUENT AND CONCENTRATING THE LIQUID, PREPARING A FINELY DIVIDED MASS OF THE CRYSTALS OBTAINED AND OF THE CONCENTRATED LIQUID, MOVING SAID MASS THROUGH A DISPLACEMENT ZONE, EVENLY DISTRIBUTING A DISPLACING LIQUID OVER THE CROSS SECTION OF SAID MASS AT THE EXIT END OF THE DISPLACEMENT ZONE, PASSING SAID DISPLACING LIQUID UNDER PRESSURE COUNTERCURRENT TO THE MASS, ALLOWING THE SECOND NAMED LIQUID TO DISPLACE THE CONCENTRATED LIQUID, AND WITHDRAWING THE CONCENTRATED LIQUID NEAR THE INGRESS END OF THE DISPLACEMENT ZONE.
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) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |