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Battery jumper cable

  • US 4,869,688 A
  • Filed: 08/24/1987
  • Issued: 09/26/1989
  • Est. Priority Date: 09/02/1986
  • Status: Expired due to Term
First Claim
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1. A battery jumper cable comprising:

  • a first electrically insulated flexible low-voltage conductor having a first end portion and a second end portion electrically connected to a first pair of electrically insulated pole pliers and a second pair of electrically insulated pole pliers, respectively;

    a second electrically insulated low-voltage conductor having a first end portion and a second end portion electrically connected to a first pair of electrically insulated pole pliers and a second pair of electrically insulated pole pliers, respectively;

    a third electrically insulated conductor connecting the first low voltage conductor and the second low-voltage conductor in close proximity to said first pairs of pole pliers; and

    a fourth electrically insulated conductor connecting the first low voltage conductor and the second low-voltage conductor in close proximity to said second pairs of pole pliers;

    each of said third and fourth conductors comprising a voltage-dependent resistor having a forward voltage which exceeds the operating voltage of conventional starting batteries for motor vehicles, so as to provide a current flow path for short time peak voltages and block current flow for battery operating voltages.

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