US3324012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid purification by solvent distillation and recovery
Assignee: SALINE WATER CONVERSION Corp
•
Filing: 1963-06-12
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Granted: 1967-06-06
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Expires: 1983-06-12
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Roe
- 👤 Lichtenstein Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:07
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/08; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y10; Y10S; Y10S159/00; Y10S159/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD FOR CONTINUOUSLY RECOVERING SUBSTANTIALLY PURE SOLVENT FROM A LIQUID SOLVENT SYSTEM CONTAINING DISSOLVED NON-VOLATILE MATTER, WHICH COMPRISES: HEATING THE LIQUID, SO FLOWING THE HEATED LIQUID DOWNWARDLY THROUGH A PACKED COLUMN AS TO DISPOSE THE SAME IN THIN FILM ATTITUDE OVER THE SURFACE OF THE PACKING, MAINTAINING AN ABSOLUTE PRESSURE IN THE FREE SPACE OF THE PACKING SUBSTANTIALLY EQUAL TO THE SATURATION PRESSURE OF THE SOLVENT IN THE FILM AT ANY POINT THEREOF, THUS TO INDUCE DIFFUSION
Claim 2
Independent Claim
78 words
A METHOD FOR CONTINUOUSLY RECOVERING SUBSTANTIALLY PURE SOLVENT FROM A LIQUID SOLVENT SYSTEM CONTAINING DISSOLVED NON-VOLATILE MATTER, WHICH COMPRISES: HEATING THE LIQUID, SO FLOWING THE HEATED LIQUID DOWNWARDLY THROUGH A PACKED COLUMN AS TO DISPOSE THE SAME IN THIN FILM ATTITUDE OVER THE SURFACE OF THE PACKING, MAINTAINING AN ABSOLUTE PRESSURE IN THE FREE SPACE OF THE PACKING SUBSTANTIALLY EQUAL TO THE SATURATION PRESSURE OF THE SOLVENT IN THE FILM AT ANY POINT THEREOF, THUS TO INDUCE DIFFUSION
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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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |