US3251193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concentration system for saline water or the like
Assignee: Individual
•
Filing: 1964-12-14
•
Granted: 1966-05-17
•
Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Herbert F Wiegandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:38
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
METHOD FOR RECOVERING SOLUTE-FREE WATER FROM SOLUTECONTAINING WATER OR THE LIKE, COMPRISING, IN COMBINATION, FREEZING SOLUTE-CONTAINING WATGER TO PRODUCE ICE IN A CONFINED SPACE IN THE UPPER PORTION OF A HYDRAULIC COLUMN, FORMING A PERCOLATION BED OF SAID ICE IN AN ADJACENT COLUMN IN OPEN COMMUNICATION WITH THE LOWER PORTION OF SAID FIRST-NAMED COLUMN, SUPPORTING SAID BED IN LIQUID BY PERCOLATING SAID LIQUID THROUGH SAID BED CONCURRENTLY UPWARDLY FROM BELOW SAID BED, PERCOLATING WASH LIQUID COUNTERCURRENTLY DOWNWARDLY THROUGH AN UPPER PORTION OF SAID BED, WITHDRAWING SUBSTANTIALLY ALL LIQUID PERCOLATING RESPECTIVELY UPWARDLY AND DOWNWARDLY THROUGH SAID BED FROM AN INTERMEDIATE ZONE OF SAID BED, AND REMOVING AT LEAST UPPER PORTIONS OF SAID BED AS WASHED ICE.
Claim 2
Dependent Claim
115 words
METHOD FOR RECOVERING SOLUTE-FREE WATER FROM SOLUTECONTAINING WATER OR THE LIKE, COMPRISING, IN COMBINATION, FREEZING SOLUTE-CONTAINING WATGER TO PRODUCE ICE IN A CONFINED SPACE IN THE UPPER PORTION OF A HYDRAULIC COLUMN, FORMING A PERCOLATION BED OF SAID ICE IN AN ADJACENT COLUMN IN OPEN COMMUNICATION WITH THE LOWER PORTION OF SAID FIRST-NAMED COLUMN, SUPPORTING SAID BED IN LIQUID BY PERCOLATING SAID LIQUID THROUGH SAID BED CONCURRENTLY UPWARDLY FROM BELOW SAID BED, PERCOLATING WASH LIQUID COUNTERCURRENTLY DOWNWARDLY THROUGH AN UPPER PORTION OF SAID BED, WITHDRAWING SUBSTANTIALLY ALL LIQUID PERCOLATING RESPECTIVELY UPWARDLY AND DOWNWARDLY THROUGH SAID BED FROM AN INTERMEDIATE ZONE OF SAID BED, AND REMOVING AT LEAST UPPER PORTIONS OF SAID BED AS WASHED ICE.
References Cited (Backward Citations)
US3012409A
Cited
US3073131A
Cited
US3049889A
Cited
US3119772A
Cited
US3070969A
Cited
AU217766A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-16 | 1969-11-15 | 1970-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-16 | 1973-11-15 | 1974-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-16 | 1977-11-15 | 1978-05-17 | $7700.00 | Window Closed / Lapsed |