US2927951A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically closed storage cell and a method in the manufacture of such cell
Assignee: Svenska Ackumulator Jungner AB
•
Filing: 1955-03-25
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Granted: 1960-03-08
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Expires: 1975-03-25
Abstract
No abstract record available.
Inventors
- 👤 Lindstrom Karl Goran Hugo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:51
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/34; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M6/00; H01M6/22; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN A HERMETICALLY-SEALTED ALKALINE STORAGE CELL HAVING A POSITIVE AND A NEGATIVE ELECTRODE SPACED FROM EACH OTHER IN THE CELL HOUSING, SALD ELECTRODES EACH HAVING AN ACTIVE MATERIAL CAPABLE OF ABSORBING THE GAS DEVELOPED AT THE ELECTRODE OF OPPOSITE POLARITY DURING CHARGING, THE INVENTION WHICH COMPRISES A PLASTIC MASS FILLING THE SPACE BETWEEN SAID ELECTRODES, SAID PLASTIC MASS INDLUDING FINE GRAINS OF ALUMINUM OXIDE WETTER BY AN ALKALINE ELECTROLYTE, SAID GRAINS BEING ELECTRICALLY NON-CONDUCTIVE AND RESISTANT TO THE ELECTROLYTE, AND A QUANTITY OF LITHIUM ANTI-POSONING AGENT IN SAID CELL HOUSING COUNTERACTING THE POISONING INFLUENCE OF TRACES OF ALUMINATE ORIGINATING FROM THE ALUMINUM OXIDE, THE QUANTITY OF LITHIUM AMOUNTING TO 0.01 TO 5.0% OF THE WEIGHT OF THE ACTIVE MATERIAL IN SAID POSITIVE ELECTRODE.
Claim 2
Dependent Claim
123 words
IN A HERMETICALLY-SEALTED ALKALINE STORAGE CELL HAVING A POSITIVE AND A NEGATIVE ELECTRODE SPACED FROM EACH OTHER IN THE CELL HOUSING, SALD ELECTRODES EACH HAVING AN ACTIVE MATERIAL CAPABLE OF ABSORBING THE GAS DEVELOPED AT THE ELECTRODE OF OPPOSITE POLARITY DURING CHARGING, THE INVENTION WHICH COMPRISES A PLASTIC MASS FILLING THE SPACE BETWEEN SAID ELECTRODES, SAID PLASTIC MASS INDLUDING FINE GRAINS OF ALUMINUM OXIDE WETTER BY AN ALKALINE ELECTROLYTE, SAID GRAINS BEING ELECTRICALLY NON-CONDUCTIVE AND RESISTANT TO THE ELECTROLYTE, AND A QUANTITY OF LITHIUM ANTI-POSONING AGENT IN SAID CELL HOUSING COUNTERACTING THE POISONING INFLUENCE OF TRACES OF ALUMINATE ORIGINATING FROM THE ALUMINUM OXIDE, THE QUANTITY OF LITHIUM AMOUNTING TO 0.01 TO 5.0% OF THE WEIGHT OF THE ACTIVE MATERIAL IN SAID POSITIVE 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) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |