Patent US3932102A successfully refreshed from Google Patents.
Patent US2678343A successfully refreshed from Google Patents.
US2678343A
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Depolarizer material for primary cells
Assignee: United States Department of the Army
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Filing: 1951-09-05
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Granted: 1954-05-11
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Expires: 1971-09-05
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:44
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y10; Y10T; Y10T29/00; Y10T29/10; Y10T29/49; Y10T29/49002; Y10T29/49108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A METHOD OF PRODUCING DEPOLARIZER ELECTRODES BY COMPRESSING FINELY DIVIDED DEPOLARIZER MATERIAL INTO THE DESIRED ELECTRODE FORM IN THE ABSENCE OF ANY CONDUCTIVE CARBON MATERIAL COMPRISING COMPLETELY COATING THE INDIVIDUAL PARTICLES OF THE DEPOLARIZER WITH AN EXTREMELY THIN CONTINUOUS METAL FILM AND THEN COMPRESSING THE COATED PARTICLES TO CAUSE THE METAL FILM TO CRACK DUE TO THE DEFORMATION OF THE DEPOLARIZER PARTICLES WHEREBY THE CRACKED METAL FILM FORMS INNUMERABLE CONDUCTIVE PATHS OF CONSIDERABLE LENGTH THRUOUT THE COMPRESSED MASS WHILE THE REMAINING PARTS OF THE SURFACES OF THE DEPOLARIZING PARTICLES BECOME EXPOSED AND FREE FOR THE DIRECT ACTION OF THE ELECTROLYTE.
Claim 2
Dependent Claim
101 words
IN A METHOD OF PRODUCING DEPOLARIZER ELECTRODES BY COMPRESSING FINELY DIVIDED DEPOLARIZER MATERIAL INTO THE DESIRED ELECTRODE FORM IN THE ABSENCE OF ANY CONDUCTIVE CARBON MATERIAL COMPRISING COMPLETELY COATING THE INDIVIDUAL PARTICLES OF THE DEPOLARIZER WITH AN EXTREMELY THIN CONTINUOUS METAL FILM AND THEN COMPRESSING THE COATED PARTICLES TO CAUSE THE METAL FILM TO CRACK DUE TO THE DEFORMATION OF THE DEPOLARIZER PARTICLES WHEREBY THE CRACKED METAL FILM FORMS INNUMERABLE CONDUCTIVE PATHS OF CONSIDERABLE LENGTH THRUOUT THE COMPRESSED MASS WHILE THE REMAINING PARTS OF THE SURFACES OF THE DEPOLARIZING PARTICLES BECOME EXPOSED AND FREE FOR THE DIRECT ACTION OF THE ELECTROLYTE.
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) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |