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Battery charging system

  • US 3,090,871 A
  • Filed: 05/02/1962
  • Issued: 05/21/1963
  • Est. Priority Date: 05/02/1962
  • Status: Expired due to Term
First Claim
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1. 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.

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