Patent US3349386A successfully refreshed from Google Patents.
US3349386A
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Battery discharge indicator
Assignee: Exide Technologies LLC
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Filing: 1965-03-02
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Granted: 1967-10-24
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Expires: 1985-03-02
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm J Zug
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:23
CPC Classifications
G; G01; G01R; G01R19/00; G01R19/165; G01R19/16533; G01R19/16538; G01R19/16542; G01R31/00; G01R31/36; G01R31/3644; G01R31/3646
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A BATTERY DISCHARGE INDICATOR COMPRISING A PAIR OF TERMINALS ADAPTED TO BE CONNECTED ACROSS THE TERMINALS OF THE BATTERY UNDER SUPERVISION, INDICATING MEANS CONNECTED IN SERIES WITH A CONTROLLED SWITCHING ELEMENT ACROSS SAID TERMINALS, FIRST CIRCUIT MEANS INCLUDING VOLTAGE REGULATING MEANS CONNECTED TO SAID SWITCHING ELEMENT AND SAID TERMINALS AND RESPONSIVE TO THE DIFFERENCE BETWEEN THE VOLTAGE ACROSS SAID TERMINALS AND THE VOLTAGE ACROSS SAID REGULATING MEANS TO SUPPLY A GATING SIGNAL TO SAID SWITCHING ELEMENT TO PLACE SAID ELEMENT IN A STATE OF CONDUCTION TO ENERGIZE SAID INDICATING MEANS WHEN THE VOLTAGE ACROSS SAID TERMINALS DECREASES TO A PREDETERMINED VALUE RELATIVE TO THE VOLTAGE ACROSS SAID VOLTAGE REGULATING MEANS AND SECOND CIRCUIT MEANS CONNECTED TO SAID SWITCHING ELEMENT AND RESPONSIVE TO THE CONDUCTION THEREOF TO BIAS SAID ELEMENT IN A NON-CONDUCTIVE STATE TO
Claim 2
Dependent Claim
134 words
A BATTERY DISCHARGE INDICATOR COMPRISING A PAIR OF TERMINALS ADAPTED TO BE CONNECTED ACROSS THE TERMINALS OF THE BATTERY UNDER SUPERVISION, INDICATING MEANS CONNECTED IN SERIES WITH A CONTROLLED SWITCHING ELEMENT ACROSS SAID TERMINALS, FIRST CIRCUIT MEANS INCLUDING VOLTAGE REGULATING MEANS CONNECTED TO SAID SWITCHING ELEMENT AND SAID TERMINALS AND RESPONSIVE TO THE DIFFERENCE BETWEEN THE VOLTAGE ACROSS SAID TERMINALS AND THE VOLTAGE ACROSS SAID REGULATING MEANS TO SUPPLY A GATING SIGNAL TO SAID SWITCHING ELEMENT TO PLACE SAID ELEMENT IN A STATE OF CONDUCTION TO ENERGIZE SAID INDICATING MEANS WHEN THE VOLTAGE ACROSS SAID TERMINALS DECREASES TO A PREDETERMINED VALUE RELATIVE TO THE VOLTAGE ACROSS SAID VOLTAGE REGULATING MEANS AND SECOND CIRCUIT MEANS CONNECTED TO SAID SWITCHING ELEMENT AND RESPONSIVE TO THE CONDUCTION THEREOF TO BIAS SAID ELEMENT IN A NON-CONDUCTIVE STATE TO
References Cited (Backward Citations)
US640787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |