Means for boosting run-down vehicle batteries

Claim 1

MEANS FOR PROVIDING A BOOSTER CURRENT TO A MOTOR VEHICLE HAVING A RUN-DOWN BATTERY CONSISITING OF A SERVICE TRUCK INCLUDING IN ITS ENGINE ELECTRICAL SYSTEM A GENERATOR, A VOLTAGE REGULATOR AND A SERVICE TRUCK 12-VOLT BATTERY, AN AUXILIARY 12-VOLT BATTERY CARRIED BY SAID SERVICE TRUCK, AND A CONTROL UNIT COMPRISING A CONTROL CIRCUIT, A BATTERY CHARGE CIRCUIT, AND A POWER CIRCUIT ADAPTED TO APPLY BOOSTER CURRENT SELECTIVELY TO EITHER A 6-VOLT OR A 12-VOLT RUN-DOWN BATTERY, SAID CONTROL UNIT INCLUDING A DOUBLE POLE THROW MAIN SWITCH SW-1 CONNECTED TO THE ARMATURE TERMINAL OF THE GENERATOR AND TO THE BATTERY TERMINAL OF THE VOLTAGE REGULATOR AND SELECTIVELY MOVABLE TO ON AND OFF POSITIONS, A SINGLE POLE DOUBLE THROW SELECTOR SWITCH SW-2 CONNECTED TO THE BATTERY TERMINAL OF THE VOLTAGE REGULATOR WHEN SAID MAIN SWITCH SW-1 IN ITS ON POSITION, SAID SW-2 SWICTH HAVING A 6-VOLT RUN-DOWN BATTERY BOOST POSITION AND A 12-VOLT RUN-DOWN BATTERY BOOST POSITION, SAID POWER CIRCUIT CONNECTING SAID SERVICE TRUCK 12-VOLT BATTERY AND SAID AUXILIARY 12-VOLT BATTERY TO A RUNDOWN BATTERY WHEN SAID MAIN SWITCH SW-1 IS IN ITS ON POSITION AND WHEN SAID SELECTOR SWITCH SW-2 IS IN EITHER ITS 6-VOLT OR 12-VOLT RUN-DOWN BATTERY POSITION, FLEXIBLE CABLE LEADS FC FROM SAID POWER CIRCUIT CONNECTIBLE SELECTIVELY IN MATING POLARITY TO A 6-VOLT RUNDOWN BATTERY OR A 12-VOLT RUN-DOWN BATTERY OF THE MOTOR VEHICLE, A PLURALITY OF NORMALLY OPEN SOLENOID OPERATED RELAYS R-1, R-2, R-3 AND R-4 IN SAID POWER CIRCUIT CLOSABLE RESPONSIVE TO ENERGIZATION OF THEIR SOLENOIDS THROUGH SAID CONTROL CIRCUIT, SAID CONTROL CIRCUIT SELECTIVELY CLOSING RELAYS R-1, R-2, R-3 AND R-4 ACCORDING TO THE POSITION TO WHICH SWITCHES SW-1 AND SW-2 ARE THROWN, THE SOLENOID OF RELAY R-1 BEING ENERGIZED WHEN SW-1 IS ON AND SW-2 IS IN ITS 6-VOLT BATTERY BOOST POSITION SUPPLYING CURRENT THROUGH THE POWER CIRCUIT AND THE FLEXIBLE CABLE LEADS FC TO A 6-VOLT RUN-DOWN BATTERY OF A MOTOR VEHICLE TO WHICH SAID FLEXIBLE CABLE LEADS FC MAY BE CONNECTED, THE SOLENOID OF EACH OF RELAYS R-2 AND R-3 BIENG ENERGIZED WHEN SW-1 IS ON AND SW-2 IS IN ITS 12-VOLT BATTERY BOOST POSITION CLOSING SAID RELAYS R-2 AND R-3 CONNECTING SAID SERVICE TRUCK 12-VOLT BATTERY AND SAID AUXILIARY 12-VOLT BATTERY IN SERIES TO SUPPLY CURRENT THROUGH THE POWER CIRCUIT AND FLEXIBLE CABLE LEADS FC TO A 12-VOLT RUN-DOWN BATTERY OF A MOTOR VEHICLE TO WHICH SAID FLEXIBLE CABLE LEADS FC MAY BE CONNECTED, THE SERVICE TRUCK ELECTRICAL SYSTEM INCLUDING SERVICE TRUCK BATTERY CHARGE CONDUCTOR A FROM SAID SERVICE TRUCK VOLTAGE REGUALTOR TO SAID 12-VOLT SERVICE TRUCK BATTERY, A BATTERY CHARGE CONDUCTOR B FROM SAID SERVICE TRUCK VOLTAGE REGULATOR TO SAID AUXILIARY 12-VOLT BATTERY THROUGH SAID MAIN SWITCH SW-1, THE SAID MAIN SWITCH SW-1 IN ITS OFF POSITION CONNECTING THE BATTERY TERMINAL OF THE SERVICE TRUCK VOLTAGE REGUALTOR TO THE POSITIVE SIDE OF THE AUXILIARY 12-VOLT BATTERY THROUGH THE BATTERY CHARGE CONDUCTOR B, THE SOLENOID OF RELAY R-4 BEING ENERGIZED WHEN SW-1 IS IN ITS OFF POSITION CLOSING SAID RELAY R-4 AND GROUNDING THE NEGATIVE SIDE OF THE AUXILIARY 12-VOLT BATTERY CAUSING SAID SERVICE TRUCK 12-VOLT BATTERY AND SAID AUXILIARY 12-VOLT BATTERY TO BE CHARGED BY SAID SERVICE TRUCK GENERATOR THROUGH SAID BATTERY CHARGE CONDUCTORS A AND B.