Patent US3673076A successfully refreshed from Google Patents.
US3673076A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter press fluorine cell with carbon connectors
Assignee: Dow Chemical Co
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Filing: 1969-03-05
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Granted: 1972-06-27
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Expires: 1989-03-05
Abstract
Abstract This invention relates to a filter press type of cell wherein the connection of an anode to the cathode of an adjacent cell is through a carbon connector. Individual cells have their ends protected by a Teflon end cover plate. The carbon connector between cells passes, by means of a press fit, through a Teflon bushing. A metal diaphragm fits across each cell intermediate its ends, the diaphragms being insulated from the adjacent metal body of the cell by Teflon gaskets. The cell bath fills the cells and extends into hydrogen and fluorine risers at the top of each cell.
Inventors
- 👤 Paul R Juckniess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:15
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/70; C25B9/73; C25B9/77
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
34 words
Apparatus in accordance with claim 1, wherein the inner wall of the body part lying adjacent to the headers in the body part containing the anodes of said apparatus are beveled towards said headers.
Claim 2
Dependent Claim
16 words
Apparatus in accordance with claim 1, wherein metal parts of said apparatus are made of nickel.
Claim 3
Dependent Claim
20 words
Apparatus in accordance with claim 1, wherein said diaphragms are non-foraminous at the top part thereof adjacent to said headers.
References Cited (Backward Citations)
US1365875A
Cited
DE1054430B
Cited
US3242065A
Cited
US3119759A
Cited
US3055811A
Cited
US3402117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |