US4285796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrolysis electrode
Assignee: Research Corp
•
Filing: 1978-08-21
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Granted: 1981-08-25
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Expires: 1998-08-21
Abstract
Abstract An electrode, which comprises an electrically conductive current collector, and a working surface containing a multiplicity of conductive islands in a non-conducting matrix wherein the majority of said islands are in electrically conductive contact with said current collector wherein the average size of said conductive islands and the average spacing between said conductive islands are of the same order of magnitude as the diffusion layer of the solution intended to be treated when said electrode is immersed into said solution.
Inventors
- 👤 Glenn E. Stoner
- 👤 George L. Cahen, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:32
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25B11/04; C25B11/051; C25B11/073; C25B11/091; C25B11/095; Y; Y10; Y10S; Y10S435/00; Y10S435/817
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
112 words
An electrode, which comprises: an electrically conductive current collector; and a working surface containing a multiplicity of conductive islands in a non-conducting matrix wherein the majority of said islands are in electrically conductive contact with said current collector wherein the average size of said conductive islands ranging from 3-30 μm and the average spacing between said conductive islands ranging from 3-50 μm are of the same order of magnitude as the diffusion layer of the solution intended to be treated when said electrode is immersed into said solution, said surface having fixed thereto on the non-conducting matrix thereof, an enzyme, thereby rendering said electrode capable of simultaneously effecting enzymatic and electrolytic reactions.
Claim 2
Dependent Claim
112 words
An electrode, which comprises: an electrically conductive current collector; and a working surface containing a multiplicity of conductive islands in a non-conducting matrix wherein the majority of said islands are in electrically conductive contact with said current collector wherein the average size of said conductive islands ranging from 3-30 μm and the average spacing between said conductive islands ranging from 3-50 μm are of the same order of magnitude as the diffusion layer of the solution intended to be treated when said electrode is immersed into said solution, said surface having fixed thereto on the non-conducting matrix thereof, an enzyme, thereby rendering said electrode capable of simultaneously effecting enzymatic and electrolytic reactions.
Claim 3
Dependent Claim
15 words
The electrode of claim 1, wherein said non-conducting matrix is a thermoplastic or thermosetting resin.
Claim 4
Dependent Claim
55 words
The electrode of claim 1, wherein the total conductive area of said electrode is 30-60% of the total working surface, and wherein the average cross-sectional area of said islands is of the same order of magnitude as the diffusion layer of the solution intended to be treated when said electrode is immersed into said solution.
Claim 5
Dependent Claim
28 words
The electrode of claim 1, wherein said current collector is a metal film of a thickness greater than 10 μm deposited on the non-working side of said electrode.
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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) | 1984-08-24 | 1985-02-23 | 1985-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-24 | 1989-02-23 | 1989-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-24 | 1993-02-23 | 1993-08-25 | $7700.00 | Window Closed / Lapsed |