Patent US2231899A successfully refreshed from Google Patents.
US3400318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery charging systems
Assignee: ZF International UK Ltd
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Filing: 1966-08-15
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Granted: 1968-09-03
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Expires: 1986-08-15
Abstract
No abstract record available.
Inventors
- 👤 Hill William Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:42
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/1469; H02J7/1484
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A BATTERY CHARGING SYSTEM FOR USE IN A ROAD VEHICLE COMPRISING A COMBINATION A PAIR OF TERMINALS BETWEEN WHICH IN USE THE BATTERY IS CONNECTED, AN ALTERNATOR, FIRST AND SECOND RECTIFYING MEANS EACH CONNECTING THE OUTPUT WINDING OF THE ALTERNATOR TO SAID TERMINALS, THE FIRST AND SECOND RECTIFYING MEANS BEING COUPLED TO THE OUTPUT WINDING OF THE ALTERNATOR IN SUCH A WAY THAT BELOW A PREDETERMINED ALTERNATOR SPEED THE FIRST RECTIFYING MEANS IS CAPABLE OF SUPPLY A GREATER OUTPUT CURRENT TO THE TERMINALS THAN THE SECOND RECTIFYING MEANS, BUT ABOVE THE PREDETERMINED ALTERNATOR SPEED THE SECOND RECTIFYING MEANS IS CAPABLE OF SUPLYING A GREATER OUTPUT CURRENT TO SAID TERMINALS THAN THE FIRST RECTIFYING MEANS, AND AUTOMATICALLY OPERABLE SWITCH MEANS FOR CONTROLLING WHICH OF SAID RECTIFYING MEANS IS OPERATING SO AS TO ENABLE MAXIMUM OUTPUT CURRENT TO BE OBTAINED FROM THE ALTERNATOR AT ANY GIVEN TIME.
Claim 2
Dependent Claim
145 words
A BATTERY CHARGING SYSTEM FOR USE IN A ROAD VEHICLE COMPRISING A COMBINATION A PAIR OF TERMINALS BETWEEN WHICH IN USE THE BATTERY IS CONNECTED, AN ALTERNATOR, FIRST AND SECOND RECTIFYING MEANS EACH CONNECTING THE OUTPUT WINDING OF THE ALTERNATOR TO SAID TERMINALS, THE FIRST AND SECOND RECTIFYING MEANS BEING COUPLED TO THE OUTPUT WINDING OF THE ALTERNATOR IN SUCH A WAY THAT BELOW A PREDETERMINED ALTERNATOR SPEED THE FIRST RECTIFYING MEANS IS CAPABLE OF SUPPLY A GREATER OUTPUT CURRENT TO THE TERMINALS THAN THE SECOND RECTIFYING MEANS, BUT ABOVE THE PREDETERMINED ALTERNATOR SPEED THE SECOND RECTIFYING MEANS IS CAPABLE OF SUPLYING A GREATER OUTPUT CURRENT TO SAID TERMINALS THAN THE FIRST RECTIFYING MEANS, AND AUTOMATICALLY OPERABLE SWITCH MEANS FOR CONTROLLING WHICH OF SAID RECTIFYING MEANS IS OPERATING SO AS TO ENABLE MAXIMUM OUTPUT CURRENT TO BE OBTAINED FROM THE ALTERNATOR AT ANY GIVEN TIME.
References Cited (Backward Citations)
US3339107A
Cited
US3353090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |