Patent US3307097A successfully refreshed from Google Patents.
US3307097A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarity responsive battery charger
Assignee: Motorola Solutions Inc
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Filing: 1964-04-29
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Granted: 1967-02-28
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Expires: 1984-04-29
Abstract
No abstract record available.
Inventors
- 👤 Franklin C Brewster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:20
CPC Classifications
H; H02; H02H; H02H7/00; H02H7/10; H02H7/12; H02H7/125; H02H7/1257; H02J; H02J7/00; H02J7/14; H02J7/60; H02J7/65; H02J7/68; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A PROTECTIVE CIRCUIT FOR USE IN A MOTOR VEHICLE ELECTRICAL SYSTEM WHICH INCLUDES A STORAGE BATTERY, AN ALTERNATING CURRENT GENERATOR, A PLURALITY OF RECTIFYING DIODES COUPLED TO THE GENERATOR AND POLED TO DEVELOP A POTENTIAL OF THE PROPER POLARITY TO CHARGE THE BATTERY, AND AN ISOLATION DIODE COUPLED TO THE PLURALITY OF RECTIFYING DIODES, THE ISOLATION DIODE BEING POLED TO PASS CURRENT FROM THE RECTIFYING DIODES TO THE STORAGE BATTERY, SAID PROTECTIVE CIRCUIT INCLUDING IN COMBINATION, RELAY MEANS HAVING NORMALLY OPEN CONTACTS AND A RELAY COIL, A CIRCUIT INCLUDING SAID CONTACTS COUPLING THE ISOLATION DIODE TO THE BATTERY, BLOCKING DIODE MEANS COUPLING THE BATTERY TO SAID RELAY COIL, SAID RELAY COIL AND SAID BLOCKING DIODE MEANS BEING RESPONSIVE TO A CORRECT POLARITY CONNECTION OF THE BATTERY TO CLOSE SAID CONTACTS AND COUPLE THE BATTERY TO THE PLURALITY OF DIODES, SAID RELAY COIL AND SAID BLOCKING DIODE FURTHER BEING RESPONSIVE TO AN INCORRECT POLARITY CONNECTION OF THE BATTERY TO OPEN SAID CONTACTS AND UNCOUPLE THE BATTERY FROM THE PLURALITY OF DIODES, AND RESISTANCE MEANS COUPLING THE RECTIFYING DIODES TO SAID RELAY COIL.
Claim 2
Dependent Claim
181 words
A PROTECTIVE CIRCUIT FOR USE IN A MOTOR VEHICLE ELECTRICAL SYSTEM WHICH INCLUDES A STORAGE BATTERY, AN ALTERNATING CURRENT GENERATOR, A PLURALITY OF RECTIFYING DIODES COUPLED TO THE GENERATOR AND POLED TO DEVELOP A POTENTIAL OF THE PROPER POLARITY TO CHARGE THE BATTERY, AND AN ISOLATION DIODE COUPLED TO THE PLURALITY OF RECTIFYING DIODES, THE ISOLATION DIODE BEING POLED TO PASS CURRENT FROM THE RECTIFYING DIODES TO THE STORAGE BATTERY, SAID PROTECTIVE CIRCUIT INCLUDING IN COMBINATION, RELAY MEANS HAVING NORMALLY OPEN CONTACTS AND A RELAY COIL, A CIRCUIT INCLUDING SAID CONTACTS COUPLING THE ISOLATION DIODE TO THE BATTERY, BLOCKING DIODE MEANS COUPLING THE BATTERY TO SAID RELAY COIL, SAID RELAY COIL AND SAID BLOCKING DIODE MEANS BEING RESPONSIVE TO A CORRECT POLARITY CONNECTION OF THE BATTERY TO CLOSE SAID CONTACTS AND COUPLE THE BATTERY TO THE PLURALITY OF DIODES, SAID RELAY COIL AND SAID BLOCKING DIODE FURTHER BEING RESPONSIVE TO AN INCORRECT POLARITY CONNECTION OF THE BATTERY TO OPEN SAID CONTACTS AND UNCOUPLE THE BATTERY FROM THE PLURALITY OF DIODES, AND RESISTANCE MEANS COUPLING THE RECTIFYING DIODES TO SAID RELAY COIL.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |