US3335079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodialysis apparatus including vertically suspended ion exchange membranes
Assignee: AMF Inc
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Filing: 1962-11-19
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Granted: 1967-08-08
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Nellen William Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:54
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/461
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A FLUID TREATMENT APPARATUS COMPRISING, IN COMBINATION, A TANK CONTAINING AT LEAST ONE DILUTING STREAM OUTLET OPENING IN ITS UPPER PORTION AND AT LEAST ONE CONCENTRATING STREAM OUTLET OPENING IN ITS LOWER PORTION, MEMBRANE HOLDING MEANS DISPOSED ACROSS THE TOP OF SAID TANK, STRIPS OF ION PERMEABLE MEMBRANE HANGING FROM SAID MEMBRANE SUPPORT MEMBERS SUBSTANTIALLY ACROSS SAID TANK, WEIGHTS AT THE BOTTOM OF SAID STRIPS OF MEMBRANE, SAID STRIPS OF MEMBRANE BEING FLEXIBLY TENSIONED SUBSTANTIALLY VERTICALLY BE SAID WEIGHTS AND SUBSTANTIALLY VIBRATION FREE AND BEING FREE TO SWING A LIMITED DISTANCE AND ELECTRODES DISPOSED IN SAID TANK BEYOND SAID STRIPS OF MEMBRANE.
Claim 2
Dependent Claim
102 words
A FLUID TREATMENT APPARATUS COMPRISING, IN COMBINATION, A TANK CONTAINING AT LEAST ONE DILUTING STREAM OUTLET OPENING IN ITS UPPER PORTION AND AT LEAST ONE CONCENTRATING STREAM OUTLET OPENING IN ITS LOWER PORTION, MEMBRANE HOLDING MEANS DISPOSED ACROSS THE TOP OF SAID TANK, STRIPS OF ION PERMEABLE MEMBRANE HANGING FROM SAID MEMBRANE SUPPORT MEMBERS SUBSTANTIALLY ACROSS SAID TANK, WEIGHTS AT THE BOTTOM OF SAID STRIPS OF MEMBRANE, SAID STRIPS OF MEMBRANE BEING FLEXIBLY TENSIONED SUBSTANTIALLY VERTICALLY BE SAID WEIGHTS AND SUBSTANTIALLY VIBRATION FREE AND BEING FREE TO SWING A LIMITED DISTANCE AND ELECTRODES DISPOSED IN SAID TANK BEYOND SAID STRIPS OF MEMBRANE.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |