US2970098A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodialysis apparatus
Assignee: Individual
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Filing: 1957-11-04
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Granted: 1961-01-31
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Expires: 1977-11-04
Abstract
No abstract record available.
Inventors
- 👤 Cecil B Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:49
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/461; B01D2313/00; B01D2313/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
ELECTRODIALYTIC LIQUID TREATMENT APPARATUS COMPRISING AN ELECTRODIALYTIC CELL HAVING A PAIR OF SPACED ELECTRODES, AND A SPACE FOR LIQUID TREATMENT BETWEEN THE ELECTRODES, A PLURALITY OF CLOSED CAPSULES DISPOSED WITHIN THE SAID SPACE BETWEEN ELECTRODES AND SUBSTANTIALLY FILLING THE SAID SPACE, THE SAID CAPSULES BEING OF SMALL SIZE IN ALL DIMENSIONS COMPARED TO THE SAID SPACE, AND BEING SO ARRANGED THAT A LINE OF CURRENT FLOW BETWEEN ELECTRODES PASSES THROUGH A PLURALITY OF SUCH CAPSULES AND AN EQUIPOTENTIAL SURFACE ALOS PASSES THROUGH A PLURALITY OF SUCH CAPSULES, EACH SUCH CAPSULE COMPRISING OPPOSED WALL PORTIONS WHICH ARE RESPECTIVELY SELECTIVELY ANION PERMEAMBLE AND SELECTIVELY CATION PERMEABLE, HE SAID CAPSULES BEING ARRANGED SO THAT THE ANION PERMEABLE WALL PORTIONS FACE TOWARD ONE SAID ELECTRODE AND THE CATION PERMEABLE WALL PORTIONS FACE TOWARD THE OTHER SAID ELECTRODE.
Claim 2
Dependent Claim
133 words
ELECTRODIALYTIC LIQUID TREATMENT APPARATUS COMPRISING AN ELECTRODIALYTIC CELL HAVING A PAIR OF SPACED ELECTRODES, AND A SPACE FOR LIQUID TREATMENT BETWEEN THE ELECTRODES, A PLURALITY OF CLOSED CAPSULES DISPOSED WITHIN THE SAID SPACE BETWEEN ELECTRODES AND SUBSTANTIALLY FILLING THE SAID SPACE, THE SAID CAPSULES BEING OF SMALL SIZE IN ALL DIMENSIONS COMPARED TO THE SAID SPACE, AND BEING SO ARRANGED THAT A LINE OF CURRENT FLOW BETWEEN ELECTRODES PASSES THROUGH A PLURALITY OF SUCH CAPSULES AND AN EQUIPOTENTIAL SURFACE ALOS PASSES THROUGH A PLURALITY OF SUCH CAPSULES, EACH SUCH CAPSULE COMPRISING OPPOSED WALL PORTIONS WHICH ARE RESPECTIVELY SELECTIVELY ANION PERMEAMBLE AND SELECTIVELY CATION PERMEABLE, HE SAID CAPSULES BEING ARRANGED SO THAT THE ANION PERMEABLE WALL PORTIONS FACE TOWARD ONE SAID ELECTRODE AND THE CATION PERMEABLE WALL PORTIONS FACE TOWARD THE OTHER SAID ELECTRODE.
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) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |