US2708658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing electrolytes from solutions
Assignee: Veolia WTS Systems USA Inc
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Filing: 1952-07-18
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Granted: 1955-05-17
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Expires: 1972-07-18
Abstract
No abstract record available.
Inventors
- 👤 Norman W Rosanberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:41
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
APPARATUS FOR TRANSFERRING IONS OF ONE SOLUTION TO ANOTHER COMPRISING A PLURALITY OF PERFORATED SPACER MEMBERS EACH DISPOSED IN FACE-TO-FACE CONTACT ON ONE SIDE WITH A SELECTIVELY ION PERMEABLE MEMBRANE AND ON THE OTHER SIDE WITH A SELECTIVELY ION PERMEABLE MEMBRANE, SAID SPACER MEMBERS HAVING CONTINUOUS TORTUOUS PER FORATIONS THERETHROUGH AND RUNNING IN PARALLEL TO THE FACES IN CONTACT WITH SAID MEMBRANES TO FORM TORTUOUS PATH CHAMBERS, MEANS FOR INTRODUCING A SOLUTION INTO ONE END OF EACH CHAMBER, AND MEANS FOR REMOVING SOLUTION FROM THE OTHER END OF EACH CHAMBER, AND MEANS FOR FLOWING A DIRECT ELECTRIC CURRENT TRANSVERSELY THROUGH THE MEMBRANES AND CHAMBERS.
Claim 2
Dependent Claim
104 words
APPARATUS FOR TRANSFERRING IONS OF ONE SOLUTION TO ANOTHER COMPRISING A PLURALITY OF PERFORATED SPACER MEMBERS EACH DISPOSED IN FACE-TO-FACE CONTACT ON ONE SIDE WITH A SELECTIVELY ION PERMEABLE MEMBRANE AND ON THE OTHER SIDE WITH A SELECTIVELY ION PERMEABLE MEMBRANE, SAID SPACER MEMBERS HAVING CONTINUOUS TORTUOUS PER FORATIONS THERETHROUGH AND RUNNING IN PARALLEL TO THE FACES IN CONTACT WITH SAID MEMBRANES TO FORM TORTUOUS PATH CHAMBERS, MEANS FOR INTRODUCING A SOLUTION INTO ONE END OF EACH CHAMBER, AND MEANS FOR REMOVING SOLUTION FROM THE OTHER END OF EACH CHAMBER, AND MEANS FOR FLOWING A DIRECT ELECTRIC CURRENT TRANSVERSELY THROUGH THE MEMBRANES AND CHAMBERS.
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) | 1958-05-16 | 1958-11-15 | 1959-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-16 | 1962-11-15 | 1963-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-16 | 1966-11-15 | 1967-05-17 | $7700.00 | Window Closed / Lapsed |