Jumper cable apparatus

  • US 4,969,834 A
  • Filed: 10/02/1989
  • Issued: 11/13/1990
  • Est. Priority Date: 10/02/1989
  • Status: Expired due to Fees
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First Claim
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1. A jumper cable apparatus comprising:

  • a. a first charging transfer cable having on a first end a first attaching means and a second charging transfer cable having on a second end a second attaching means to releasably attach the first and second charging transfer cables to a first pair of battery terminals;

    b. a third charging transfer cable having on a third end a third attaching means and a fourth charging transfer cable having on a fourth end a fourth attaching means to releasably attach the third and fourth charging transfer cables to a second pair of battery terminals;

    c. a first connecting body means including circuit means to sense polarity and to limit current attached to a fifth end of the first charging transfer cable and attached to a sixth end of the second charging transfer cable;

    the first connecting body means further comprising;

    a positive probe receiver connected to the fifth end of the first charging transfer cable;

    a negative probe receiver connected to the sixth end of the second charging transfer cable;

    a first electrical circuit means to electrically interconnect the first and second charging transfer cables;

    a first polarity-sensitive LED in the first circuit means;

    a first circuitry test switch in the first circuit means;

    a first current-limiting resistor in the first circuit means allowing current flow between the first switch and the first LED;

    a first polarity-sensitive piezoelectric alarm in the first circuit means allowing and sensing reversed current flow between the first switch and the negative probe receiver;

    a thermally-activated circuit breaker in the first circuit means allowing and limiting current flow between the negative probe receiver and the second charging transfer cable;

    an incandescent lamp and a nonpolarity-sensitive alarm in the first circuit means allowing current flow when the circuit breaker interrupts current flow between the negative probe receiver and the second charging transfer cable; and

    the first switch in the first circuit means allowing selective current flow from the positive probe receiver, through the switch, through the first current-limiting resistor, through the first LED, through the piezoelectric alarm and to the second charging transfer cable;

    d. a second connecting body means including circuit means to sense polarity attached to a seventh end of the third charging transfer cable and attached to an eighth end of the fourth charging transfer cable and the second connecting means being selectively engaged with the first connecting means to allow transfer of current between a first battery and a second battery; and

    e. an insulative translating block means in the second connecting means to reduce contact with an interior of the second connecting means.

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