Patent US3308365A successfully refreshed from Google Patents.
US3308365A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polarity control system
Assignee: Marquette Corp
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Filing: 1963-04-26
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Granted: 1967-03-07
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Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 John John H St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:03
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/14; H; H02; H02J; H02J7/00; H02J7/14; H02J7/60; H02J7/68; H02J7/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
239 words
IN A BATTERY CHARGER HAVING A PLURALITY OF INPUT LEADS ADAPTED TO BE CONNECTEDD TO AN ALTERNATING POWER SOURCE AND HAVING OUTPUT TERMINALS ACROSS WHICH IS PROVIDED A D.C. OUTPUT VOLTAGE HAVING A RIPPLE COMPONENT THEREIN, A PLURALITY OF BATTERY LEADS CONNECTED TO SAID OUTPUT TERMINALS AND HAVING CONNECTORS ADAPTED TO BE CONNECTED TO A BATTERY TO BE SERVICED, SWITCHING MEANS CONNECTED TO AT LEAST SOME OF SAID LEADS AND EFFECTIVE IN A FIRST CONDITION THEREOF TO CAUSE A FULL CHARGING VOLTAGE TO BE APPLIED THROUGH SAID CONNECTORS TO SAID BATTERY AND IN A SECOND CONDITION THEREOF TO PREVENT A FULL CHARGING VOLTAGE FROM BEING APPLIED TO SAID BATTERY, AND CONTROLLING MEANS FOR CONTROLLING THE OPERATION OF SAID SWITCHING MEANS AND COMPRISING MEANS CONNECTED ACROSS SAID BATTERY LEADS AND RESPONSIVE TO THE RIPPLE COMPONENT OF THE D.C. OUTPUT VOLTAGE, SAID CONTROLLING MEANS BEING EFFECTIVE WHEN THE BATTERY LEAD CONNECTORS ARE CONNECTED TO A BATTERY TO BE SERVICED IN THE CORRECT POLARITY, SO THAT THE RIPPLE COMPONENT OF THE VOLTAGE IS RELATIVELY SMALL, TO CAUSE SAID SWITCHING MEANS TO ASSUME SAID FIRST CONDITION IN WHICH A FULL CHARGING VOLTAGE IS APPLIED TO SAID BATTERY AND EFFECTIVE WHEN SAID BATTERY LEAD CONNECTORS ARE CONNECTED TO SUCH A BATTERY IN THE WRONG POLARITY TO RESPOND TO THE RIPPLE VOLTAGE PRESENT TO CAUSE SAID SWITCHING MEANS TO ASSUME SAID SECOND CONDITION IN WHICH A FULL CHARGING VOLTAGE IS NOT APPLIED TO SAID BATTERY.
Claim 2
Dependent Claim
239 words
IN A BATTERY CHARGER HAVING A PLURALITY OF INPUT LEADS ADAPTED TO BE CONNECTEDD TO AN ALTERNATING POWER SOURCE AND HAVING OUTPUT TERMINALS ACROSS WHICH IS PROVIDED A D.C. OUTPUT VOLTAGE HAVING A RIPPLE COMPONENT THEREIN, A PLURALITY OF BATTERY LEADS CONNECTED TO SAID OUTPUT TERMINALS AND HAVING CONNECTORS ADAPTED TO BE CONNECTED TO A BATTERY TO BE SERVICED, SWITCHING MEANS CONNECTED TO AT LEAST SOME OF SAID LEADS AND EFFECTIVE IN A FIRST CONDITION THEREOF TO CAUSE A FULL CHARGING VOLTAGE TO BE APPLIED THROUGH SAID CONNECTORS TO SAID BATTERY AND IN A SECOND CONDITION THEREOF TO PREVENT A FULL CHARGING VOLTAGE FROM BEING APPLIED TO SAID BATTERY, AND CONTROLLING MEANS FOR CONTROLLING THE OPERATION OF SAID SWITCHING MEANS AND COMPRISING MEANS CONNECTED ACROSS SAID BATTERY LEADS AND RESPONSIVE TO THE RIPPLE COMPONENT OF THE D.C. OUTPUT VOLTAGE, SAID CONTROLLING MEANS BEING EFFECTIVE WHEN THE BATTERY LEAD CONNECTORS ARE CONNECTED TO A BATTERY TO BE SERVICED IN THE CORRECT POLARITY, SO THAT THE RIPPLE COMPONENT OF THE VOLTAGE IS RELATIVELY SMALL, TO CAUSE SAID SWITCHING MEANS TO ASSUME SAID FIRST CONDITION IN WHICH A FULL CHARGING VOLTAGE IS APPLIED TO SAID BATTERY AND EFFECTIVE WHEN SAID BATTERY LEAD CONNECTORS ARE CONNECTED TO SUCH A BATTERY IN THE WRONG POLARITY TO RESPOND TO THE RIPPLE VOLTAGE PRESENT TO CAUSE SAID SWITCHING MEANS TO ASSUME SAID SECOND CONDITION IN WHICH A FULL CHARGING VOLTAGE IS NOT APPLIED TO SAID BATTERY.
References Cited (Backward Citations)
US2818543A
Cited
US3085187A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |