US3752758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating solid from liquids
Assignee: Individual
•
Filing: 1971-07-15
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Granted: 1973-08-14
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Expires: 1991-07-15
Abstract
Abstract A METHOD OF REMOVING SOLID CONTAMINANTS FROM A LIQUID WHEREIN THE SOLID PARTICLES HAVE A WEIGHT-TO-BUOYANCY RATIO APPROACHING UNITY. THE CONTAMINATED LIQUID IS PLACED IN A CONTAINER WITH A SIGNIFICANTLY HEAVIER OR LIGHTER LIQUID, FORMING AN INTERFACE. THE TWO LIQUIDS ARE MUTUALLY IMMISCIBLE AND ARE FORCED TOGETHER TO BE THOROUGHLY INTERSPERSED WITH ONE ANOTHER AND THEN ALLOWED TO SEPARATE AGAIN. THE SOLID PARTICLES ARE THEREBY WETTED TO SOME EXTENT BY THE INITIALLY CLEAN LIQUID AND TEND TO REMAIN THEREIN AFTER THE LIQUIDS SEPARATE, THUS BEING REMOVED FROM THE INITIALLY CONTAMINATED LIQUID.
Inventors
- 👤 Hindi A El
- 👤 R Jaeggli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:11
CPC Classifications
B; B01; B01D; B01D12/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |