US3090871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery charging system
Assignee: Individual
•
Filing: 1962-05-02
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Granted: 1963-05-21
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Expires: 1982-05-02
Abstract
No abstract record available.
Inventors
- 👤 Charles F Gorman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:41
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/70; Y; Y10; Y10S; Y10S320/00; Y10S320/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
218 words
IN COMBINATION WITH A TOWING VEHICLE PROVIDED WITH AN OPERATING ELECTRICAL SYSTEM HAVING A GENERATOR AND A VOLTAGE REGULATOR; A BATTERY CHARGING SYSTEM FOR AN ELECTRICAL SYSTEM INCLUDING A BATTERY TO BE CHARGED CARRIED BY A TRAILER TOWED BY THE VEHICLE COMPRISING A BATTERY CHARGING CIRCUIT FOR INTERCONNECTING THE ELECTRICAL SYSTEM OF A TRAILER WITH A TERMINAL OF THE VOLTAGE REGULATOR SUPPLYING A BATTERY CHARGING VOLTAGE AND A GROUND TERMINAL, AND A VOLTAGE MEASURING CIRCUIT FOR DETERMINING THE CHARGED CONDITION OF A BATTERY CONNECTED THERETO AND FOR ALTERNATELY DETERMINING THE CHARGING VOLTAGE OF THE SYSTEM, SAID VOLTAGE MEASURING CIRCUIT INCLUDING AN ELECTRICAL LOAD RESISTANCE PROVIDED WITH AN ADJUSTABLE TAP HAVING A FIRST TERMINAL CONNECTED TO SAID CHARGING CIRCUIT AND A SECOND TERMINAL CONNECTED TO A GROUNDED TERMINAL OF A TOWING VEHICLE THROUGH A SWITCH MEANS AND A METER MECHANISM FOR PRO VIDING A VISUAL INDICATION OF THE VOLTAGE OF SAID CHARGING SYSTEM, SAID METER MECHANISM HAVING A FIRST TERMINAL CONNECTED TO SAID FIRST TERMINAL OF SAID RESISTANCE AND A SECOND TERMINAL CONNECTED TO THE ADJUSTABLE TAP OF SAID RESISTANCE SAID ADJUSTABLE TAP BEING POSITIONED ON SAID RESISTANCE PROVIDE A METER INDICATION PROPORTIONAL TO THE VOLTAGE OF SAID CHARGING SYSTEM, SAID SECOND TERMINAL OF SAID METER MECHANISM BEING CONNECTED TO THE ADJUSTABLE TAP OF SAID RESISTANCE THROUGH A DIODE.
Claim 2
Dependent Claim
218 words
IN COMBINATION WITH A TOWING VEHICLE PROVIDED WITH AN OPERATING ELECTRICAL SYSTEM HAVING A GENERATOR AND A VOLTAGE REGULATOR; A BATTERY CHARGING SYSTEM FOR AN ELECTRICAL SYSTEM INCLUDING A BATTERY TO BE CHARGED CARRIED BY A TRAILER TOWED BY THE VEHICLE COMPRISING A BATTERY CHARGING CIRCUIT FOR INTERCONNECTING THE ELECTRICAL SYSTEM OF A TRAILER WITH A TERMINAL OF THE VOLTAGE REGULATOR SUPPLYING A BATTERY CHARGING VOLTAGE AND A GROUND TERMINAL, AND A VOLTAGE MEASURING CIRCUIT FOR DETERMINING THE CHARGED CONDITION OF A BATTERY CONNECTED THERETO AND FOR ALTERNATELY DETERMINING THE CHARGING VOLTAGE OF THE SYSTEM, SAID VOLTAGE MEASURING CIRCUIT INCLUDING AN ELECTRICAL LOAD RESISTANCE PROVIDED WITH AN ADJUSTABLE TAP HAVING A FIRST TERMINAL CONNECTED TO SAID CHARGING CIRCUIT AND A SECOND TERMINAL CONNECTED TO A GROUNDED TERMINAL OF A TOWING VEHICLE THROUGH A SWITCH MEANS AND A METER MECHANISM FOR PRO VIDING A VISUAL INDICATION OF THE VOLTAGE OF SAID CHARGING SYSTEM, SAID METER MECHANISM HAVING A FIRST TERMINAL CONNECTED TO SAID FIRST TERMINAL OF SAID RESISTANCE AND A SECOND TERMINAL CONNECTED TO THE ADJUSTABLE TAP OF SAID RESISTANCE SAID ADJUSTABLE TAP BEING POSITIONED ON SAID RESISTANCE PROVIDE A METER INDICATION PROPORTIONAL TO THE VOLTAGE OF SAID CHARGING SYSTEM, SAID SECOND TERMINAL OF SAID METER MECHANISM BEING CONNECTED TO THE ADJUSTABLE TAP OF SAID RESISTANCE THROUGH A DIODE.
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) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |