US3676324A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite carbon electrode structure having improved electrical conductivity
Assignee: Phillips Petroleum Co
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Filing: 1969-11-07
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Granted: 1972-07-11
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Expires: 1989-11-07
Abstract
Abstract A carbon electrode structure having improved electrical conductivity is provided. Said carbon electrode structure comprises a first section of carbon, a second section of carbon secured to said first section of carbon, and a layer of finely divided conductive carbon disposed between said first and second sections of carbon.
Inventors
- 👤 King L Mills
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:13
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/03; C25B11/04; C25B11/042; C25B11/043
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
76 words
A carbon electrode structure according to claim 1 wherein: said first section of carbon is generally cylindrical in shape, is hollow, and the inner wall thereof comprises said defined surface thereof; said second section of carbon has the general shape of a generally cylindrical rod and the outer wall thereof comprises said defined surface thereof; and said second section of carbon is disposed within said first section of carbon and secured therein by a friction fit.
Claim 2
Dependent Claim
33 words
A carbon electrode structure according to claim 2, suitable for use as an electrode in an electrochemical conversion process, and wherein: a metal current collector is mounted in said second section of carbon.
Claim 3
Dependent Claim
56 words
A carbon electrode structure according to claim 3 wherein: said first section of carbon extends at one end thereof beyond one end of said second section of carbon; and the bottom surface of said second section of carbon together with the inner surfaces of said extended portion of said first section of carbon define a cavity.
Claim 4
Dependent Claim
35 words
A carbon electrode structure according to claim 4 wherein said current collector comprises a hollow conduit and extends through said second section of carbon to said cavity for intrOducing a reactive feedstock into said cavity.
Claim 5
Dependent Claim
64 words
A carbon electrode structure according to claim 2 wherein the inner wall of said first section of carbon and the outer wall of said second section of carbon are each provided with a taper from one end to the other end, and the taper on said first section is complementary to the taper on said second section so as to improve said friction fit.
Claim 6
Dependent Claim
108 words
A carbon electrode structure according to claim 2, suitable for use as an electrode in an electrochemical conversion process, and wherein: said first section of carbon comprises a porous carbon and is closed at one end; said second section of carbon comprises a dense essentially nonporous carbon and extends into said first generally cylindrical first section of carbon to a point adjacent said closed end thereof so as to provide an enclosed space within said first section of carbon and below said second section of carbon; and a metal current collector comprising a hollow conduit extends through said second section of carbon into communication with said enclosed space.
Claim 7
Dependent Claim
64 words
A carbon electrode structure according to claim 7 wherein the inner wall of said first section of carbon and the outer wall of said second section of carbon are each provided with a taper from one end to the other end, and the taper on said first section is complementary to the taper on said second section so as to improve said friction fit.
Claim 8
Dependent Claim
117 words
A carbon electrode structure according to claim 1 wherein: said first and second sections of carbon are generally rectangular in shape; said first section of carbon is disposed on one side of said second section of carbon; a first layer of finely divided carbon is disposed between said first and second sections of carbon; a third section of carbon generally rectangular in shape is disposed adjacent to said second section of carbon on the side thereof opposite from said first section of carbon; a second layer of finely divided carbon is disposed between said second and third sections of carbon; and a fastening means is provided for securing said first, second, and third sections of carbon together.
Claim 9
Dependent Claim
55 words
A carbon structure according to claim 9, suitable for use as an electrode in an electrochemical conversion process, wherein: said first and third sections each comprise a porous carbon and said second section is less porous than said first and third sections; and a metal current collector is mounted in said second section of carbon.
Claim 10
Dependent Claim
18 words
A carbon structure according to claim 1 wherein said layer of finely divided carbon consists essentially of graphite.
Claim 11
Dependent Claim
19 words
A carbon structure according to claim 1 wherein said layer of finely divided carbon consists essentially of carbon black.
Claim 12
Dependent Claim
29 words
A carbon electrode structure according to claim 1 wherein said finely divided carbon has a particle size within the range of from about 10 millimicrons to about 100 microns.
Claim 13
Dependent Claim
24 words
A carbon electrode structure according to claim 13 wherein said layer of finely divided carbon has a thickness of up to about 0.005 inch.
References Cited (Backward Citations)
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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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |