US2611792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making electric accumulators
Assignee: Yardney International Corp
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Filing: 1950-04-26
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Granted: 1952-09-23
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Expires: 1970-04-26
Abstract
No abstract record available.
Inventors
- 👤 Henri G Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:19
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/72; H01M4/74; H01M4/742; H01M10/00; H01M10/04; H01M10/0422; H01M10/24; H01M10/28; H01M10/283; H01M4/24; H01M4/36; H01M4/362; H01M4/364; H01M4/04; H01M4/043; H01M4/48; H01M4/54; H01M4/75; H01M4/76; H01M4/765; H01M50/00; H01M50/40; H01M50/46; Y; Y02; Y02E; Y02E60/00; Y02E60/10; Y02P; Y02P70/00; Y02P70/50; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49108
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
THE METHOD OF MAKING AN ELECTRIC BATTERY WHICH COMPRISES THE STEPS OF PLACING A POSITIVE ELECTRODE CONTAINING AN ACTIVE MATERIAL MORE ELECTROPOSITIVE THAN ZINC INSIDE A RIGID, CYLINDRICAL CASING SUBSTANTIALLY CONCENTRICALLY WITH AND SPACED FROM THE WALL OF SAID CASING, FORMING A TUBULAR ZINC LINER WITH A LONGITUDINAL SLIT EXTENDING OVER THE ENTIRE LENGTH OF THE LINER, PLACING SAID LINER INSIDE THE CASING ADJACENT SAID WALL, INSERTING A TUBULAR SEPARATOR OF A MATERIAL SWELLABLE IN AN ALKALINE ELECTROLYTE BETWEEN THE LINER AND SAID POSITIVE ELECTRODE, AND INTRODUCING SUFFICIENT ALKALINE ELECTROLYTE INTO THE CASING TO CAUSE SAID SEPARATOR TO SWELL AND TO APPLY SAID LINER UNDER PRESSURE AGAINST SAID WALL.
Claim 2
Independent Claim
109 words
THE METHOD OF MAKING AN ELECTRIC BATTERY WHICH COMPRISES THE STEPS OF PLACING A POSITIVE ELECTRODE CONTAINING AN ACTIVE MATERIAL MORE ELECTROPOSITIVE THAN ZINC INSIDE A RIGID, CYLINDRICAL CASING SUBSTANTIALLY CONCENTRICALLY WITH AND SPACED FROM THE WALL OF SAID CASING, FORMING A TUBULAR ZINC LINER WITH A LONGITUDINAL SLIT EXTENDING OVER THE ENTIRE LENGTH OF THE LINER, PLACING SAID LINER INSIDE THE CASING ADJACENT SAID WALL, INSERTING A TUBULAR SEPARATOR OF A MATERIAL SWELLABLE IN AN ALKALINE ELECTROLYTE BETWEEN THE LINER AND SAID POSITIVE ELECTRODE, AND INTRODUCING SUFFICIENT ALKALINE ELECTROLYTE INTO THE CASING TO CAUSE SAID SEPARATOR TO SWELL AND TO APPLY SAID LINER UNDER PRESSURE AGAINST SAID WALL.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |