US4534845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator-gas electrode combination
Assignee: Dow Chemical Co
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Filing: 1984-08-03
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Granted: 1985-08-13
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Expires: 2004-08-03
Abstract
Abstract The invention is a separator-gas electrode combination comprising a separator having a first and a second face adapted to permit the flow of fluids or ions therethrough; a gas electrode adapted to permit a liquid and a gas to enter and exit the electrode and having at least a first and a second face; and a non-conductive self-draining member having a fluid outlet. The self-draining member has at least two faces; at least a portion of a first face contiguous to at least a portion of one face of the separator and at least a portion of a second face contiguous to at least a portion of one face of the gas electrode. The self-draining member has a plurality of interconnected passageways which are in fluid transferring communication with the separator, the gas electrode, and the fluid outlet and provide the major conduit therebetween.
Inventors
- 👤 James A. McIntyre
- 👤 Robert F. Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:48
CPC Classifications
H; H01; H01M; H01M8/00; C; C25; C25B; C25B9/00; C25B9/17; C25B9/19; H01M4/00; H01M4/86; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
184 words
A separator-gas electrode combination comprising: (a) a separator adapted to permit the flow of fluids or ions therethrough and having at least a first and a second face; and (b) a hydraulically permeable gas electrode adapted to permit a liquid and gas to enter and exit the electrode and having at least a first and second face; and (c) a gas chamber contiguous to at least a portion of the second face of the gas electrode; and (d) a means to introduce an oxygen-containing gas into said gas chamber; and (e) an electrically non-conductive self-draining member having a fluid outlet opening external to the separator-gas electrode combination and at least two faces, at least a portion of a first face being contiguous to at least a portion of one face of the separator, and at least a portion of a second face being contiguous to at least a portion of the first face of the gas electrode; said member having a plurality of interconnected passageways in fluid-transferring communication with the separator, the gas electrode and the fluid outlet and providing the major conduit therebetween.
Claim 2
Dependent Claim
184 words
A separator-gas electrode combination comprising: (a) a separator adapted to permit the flow of fluids or ions therethrough and having at least a first and a second face; and (b) a hydraulically permeable gas electrode adapted to permit a liquid and gas to enter and exit the electrode and having at least a first and second face; and (c) a gas chamber contiguous to at least a portion of the second face of the gas electrode; and (d) a means to introduce an oxygen-containing gas into said gas chamber; and (e) an electrically non-conductive self-draining member having a fluid outlet opening external to the separator-gas electrode combination and at least two faces, at least a portion of a first face being contiguous to at least a portion of one face of the separator, and at least a portion of a second face being contiguous to at least a portion of the first face of the gas electrode; said member having a plurality of interconnected passageways in fluid-transferring communication with the separator, the gas electrode and the fluid outlet and providing the major conduit therebetween.
Claim 3
Dependent Claim
13 words
The combination of claim 1 wherein the separator is a hydraulically permeable diaphragm.
Claim 4
Dependent Claim
11 words
The combination of claim 2 wherein the diaphragm is asbestos fibers.
Claim 5
Dependent Claim
16 words
The combination of claim 1 wherein the separator is a substantially hydraulically impermeable ion exchange membrane.
Claim 6
Dependent Claim
13 words
The combination of claim 4 wherein the membrane is a cation selective membrane.
Claim 7
Dependent Claim
18 words
The combination of claim 3 wherein the diaphragm is from about 0.05 inch to about 0.25 inch thick.
Claim 8
Dependent Claim
11 words
The combination of claim 1 wherein the combination is substantially planar.
Claim 9
Dependent Claim
19 words
The combination of claim 1 wherein the separator, the gas electrode, and the self-draining member are cylindrical in shape.
Claim 10
Dependent Claim
25 words
The combination of claim 1 wherein the plurality of interconnected passageways of the self-draining member have an average diameter of at least about 30 microns.
Claim 11
Dependent Claim
22 words
The combination of claim 1 wherein the passageways of the self-draining member have an average diameter of at least about 50 microns.
Claim 12
Dependent Claim
19 words
The combination of claim 1 wherein the gas electrode is from about 0.01 inch to about 0.1 inch thick.
Claim 13
Dependent Claim
19 words
The combination of claim 1 wherein the self-draining member is from about 0.03 inch to about 0.25 inch thick.
Claim 14
Dependent Claim
21 words
The combination of claim 1 wherein the overall thickness of the combination is from about 0.1 inch to about 0.6 inch.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |