Patent US2637836A successfully refreshed from Google Patents.
US2637836A
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US
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Method for charging storage batteries
Assignee: Motors Liquidation Co
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Filing: 1950-11-24
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Granted: 1953-05-05
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Expires: 1970-11-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas L Kendall
- 👤 Clifford B Bodenhafer
- 👤 Roy I Plummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:09
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/42; H01M10/44; H01M10/443; H02; H02J; H02J7/00; H02J7/02; H02J7/04; H02J7/90; H02J7/971; H02J7/975; H02J7/977; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A METHOD FOR THE FAST CHARGING OF BATTERIES OF THE PASTED LEAD PLATE TYPE, THE STEPS COMPRISING; PASSING THE HIGHEST CHARGE CURRENT POSSIBLE THROUGH THE BATTERY FOR A TIME SUFFICIENT TO BRING THE CHARGE WITHIN THE BATTERY TO FROM ONE-THIRD TO TWO-THIRDS FULL CHARGE WHILE SIMULTANEOUSLY LIMITING THE TEMPERATURE OF THE BATTERY ELECTROLYTE TO A MAXIMUM OF NOT TO EXCEED 120* F. ABOVE THE AMBIENT TEMPERATURE, REDUCING THE CHARGE ON THE BATTERY TO A POINT SUFFICIENT TO PERMIT THE BATTERY ELECTROLYTE TO COOL AT LEAST 40* F. ABOVE THE AMBIENT TEMPERATURE AND SIMULTANEOUSLY TO PRECIPITATE CRYSTALS OF LEAD SULPHATE ON THE POSITIVE AND NEGATIVE PLATES, AND THEN CHARGING THE BATTERY AT A RATE FURTHER REDUCED.
Claim 2
Dependent Claim
116 words
IN A METHOD FOR THE FAST CHARGING OF BATTERIES OF THE PASTED LEAD PLATE TYPE, THE STEPS COMPRISING; PASSING THE HIGHEST CHARGE CURRENT POSSIBLE THROUGH THE BATTERY FOR A TIME SUFFICIENT TO BRING THE CHARGE WITHIN THE BATTERY TO FROM ONE-THIRD TO TWO-THIRDS FULL CHARGE WHILE SIMULTANEOUSLY LIMITING THE TEMPERATURE OF THE BATTERY ELECTROLYTE TO A MAXIMUM OF NOT TO EXCEED 120* F. ABOVE THE AMBIENT TEMPERATURE, REDUCING THE CHARGE ON THE BATTERY TO A POINT SUFFICIENT TO PERMIT THE BATTERY ELECTROLYTE TO COOL AT LEAST 40* F. ABOVE THE AMBIENT TEMPERATURE AND SIMULTANEOUSLY TO PRECIPITATE CRYSTALS OF LEAD SULPHATE ON THE POSITIVE AND NEGATIVE PLATES, AND THEN CHARGING THE BATTERY AT A RATE FURTHER REDUCED.
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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) | 1956-05-04 | 1956-11-03 | 1957-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-04 | 1960-11-03 | 1961-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-04 | 1964-11-03 | 1965-05-05 | $7700.00 | Window Closed / Lapsed |