Patent US4013535A successfully refreshed from Google Patents.
US4013535A
Expired / Lapsed
US
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Electrolyte separator tensioning device
Assignee: Geon Co
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Filing: 1976-06-07
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Granted: 1977-03-22
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Expires: 1996-06-07
Abstract
Abstract An electrolytic cell has an electrolyte separator to which is applied a controlled tension. Apparatus for applying tension to the separator includes a chamber for containing a pressurized fluid. The chamber has a movable boundary portion such as a piston or an elastomeric membrane. The boundary portion has an inward surface adapted to be disposed adjacent the fluid and an outward surface adjacent the separator. The fluid is maintained at a predetermined pressure which may be either constant or variable. The movable boundary portion may be in direct contact with the separator or may indirectly exert tension on the separator.
Inventors
- 👤 Donald Elias White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:02
CPC Classifications
C; C25; C25B; C25B13/00; C25B9/00; C25B9/01; C25B9/17; C25B9/19
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
66 words
An electrolytic cell having an electrolyte separator and a separator tensioning device, said tensioning device comprising a chamber for containing a pressurized fluid, said chamber having a movable boundary portion, said movable boundary portion having an inward surface adapted to be disposed adjacent said pressurized fluid and an outward surface adjacent said separator, wherein movement of said movable boundary portion affects the tension of said separator.
Claim 2
Dependent Claim
66 words
An electrolytic cell having an electrolyte separator and a separator tensioning device, said tensioning device comprising a chamber for containing a pressurized fluid, said chamber having a movable boundary portion, said movable boundary portion having an inward surface adapted to be disposed adjacent said pressurized fluid and an outward surface adjacent said separator, wherein movement of said movable boundary portion affects the tension of said separator.
Claim 3
Dependent Claim
26 words
A cell as defined in claim 1 further comprising means for maintaining said pressurized fluid at a predetermined pressure upon displacement of said movable boundary portion.
Claim 4
Dependent Claim
26 words
A cell as defined in claim 1 further comprising means for maintaining said pressurized fluid at a constant pressure upon displacement of said movable boundary portion.
Claim 5
Dependent Claim
22 words
A cell as defined in claim 1 further comprising an elastomeric membrane within said chamber, said membrane adapted to contain said fluid.
Claim 6
Dependent Claim
14 words
A cell as defined in claim 1 wherein said chamber is an elastomeric membrane.
Claim 7
Dependent Claim
15 words
A cell as defined in claim 1 wherein said boundary portion is an elastomeric membrane.
Claim 8
Dependent Claim
15 words
A cell as defined in claim 1 wherein said boundary portion is a tension bar.
Claim 9
Dependent Claim
22 words
A cell as defined in claim 1 further comprising a cell wall, wherein said chamber comprises a groove in said cell wall.
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) | 1980-03-21 | 1980-09-20 | 1981-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-21 | 1984-09-20 | 1985-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-21 | 1988-09-20 | 1989-03-22 | $7700.00 | Window Closed / Lapsed |