US2965697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery diaphragm
Assignee: Exide Technologies LLC
•
Filing: 1956-11-05
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Granted: 1960-12-20
•
Expires: 1976-11-05
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Duddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:03
CPC Classifications
H; H01; H01M; H01M50/00; H01M50/40; H01M50/409; H01M50/411; H01M50/414; H01M50/417; H01M2300/00; H01M2300/0002; H01M2300/0014; H01M50/44; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
THE COMBINATION IN AN ALKALINE TYPE OF BATTERY, OF AT LEAST ONE NEGATIVE ELECTRODE AND AT LEAST ONE POSITIVE ELECTRODE OF SILVER, AND A DIAPHRAGM INTERPOSED BETWEEN SAID POSITIVE AND NEGATIVE ELECTRODES COMPRISING A CHEMICALLY INERT, HIGHLY POROUS CARRIER CHARACTERIZED BY ITS LARGE NUMBER OF INTERCONNECTED PORES, WHICH CARRIER HAS COMPLETELY THROUGHOUT ITS PORES A SOLID POLYELECTROLYTE CHARACTERIZED BY ITS IMPERMEABILITY TO TRANSFER THERETHROUGH OF COLLOIDAL FORMS OF MATTER INCLUDING SILVER, SAID POLYELECTROLYTE BEING A POLYMERIC FORM OF ION EXCHANGE RESIN POLYMERIZED IN SITU FROM MONOMERIC INGREDIENTS OF SAID ION EXCHANGE RESIN AND HAVING A COMPLETENESS OF CONTINUITY OF PHASE THROUGHOUT SAID INTERCONNECTED PORES OF SAID CARRIER WHICH ESTABLISHES A HIGH DEGREE OF ELECTROCHEMICAL ACTIVITY, A HIGH DEGREE OF PERMSELECTIVITY, AND A HIGH DEGREE OF ELECTRICAL CONDUCTANCE.
Claim 2
Dependent Claim
127 words
THE COMBINATION IN AN ALKALINE TYPE OF BATTERY, OF AT LEAST ONE NEGATIVE ELECTRODE AND AT LEAST ONE POSITIVE ELECTRODE OF SILVER, AND A DIAPHRAGM INTERPOSED BETWEEN SAID POSITIVE AND NEGATIVE ELECTRODES COMPRISING A CHEMICALLY INERT, HIGHLY POROUS CARRIER CHARACTERIZED BY ITS LARGE NUMBER OF INTERCONNECTED PORES, WHICH CARRIER HAS COMPLETELY THROUGHOUT ITS PORES A SOLID POLYELECTROLYTE CHARACTERIZED BY ITS IMPERMEABILITY TO TRANSFER THERETHROUGH OF COLLOIDAL FORMS OF MATTER INCLUDING SILVER, SAID POLYELECTROLYTE BEING A POLYMERIC FORM OF ION EXCHANGE RESIN POLYMERIZED IN SITU FROM MONOMERIC INGREDIENTS OF SAID ION EXCHANGE RESIN AND HAVING A COMPLETENESS OF CONTINUITY OF PHASE THROUGHOUT SAID INTERCONNECTED PORES OF SAID CARRIER WHICH ESTABLISHES A HIGH DEGREE OF ELECTROCHEMICAL ACTIVITY, A HIGH DEGREE OF PERMSELECTIVITY, AND A HIGH DEGREE OF ELECTRICAL CONDUCTANCE.
References Cited (Backward Citations)
US2564397A
Cited
US2636851A
Cited
US2653987A
Cited
US2702272A
Cited
US2662107A
Cited
US2816154A
Cited
US2653986A
Cited
US2700063A
Cited
US2837496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |