×

Safety booster cables with time delay

  • US 4,701,688 A
  • Filed: 03/04/1986
  • Issued: 10/20/1987
  • Est. Priority Date: 05/10/1984
  • Status: Expired due to Fees
First Claim
Patent Images

1. A safety booster cable assembly for transmitting electricity from a D.C. source, having electrodes, to a receiving battery, having electrodes, comprising:

  • A. first conductor means having two ends connecting one of the electrodes of said D.C. source to an electrode in said receiving battery;

    B. second conductor means having two ends connecting the other electrodes of said source and battery;

    C. gate means for comparing the voltage polarity of the electrodes connected to the ends of said first cable means and having two inputs and one output and so arranged and constructed to provide an output signal if the polarities are the same and another output signal if they are different;

    D. relay means for interrupting the connection between the electrodes connected by said first conductor means and said relay means having a contact that electrically connects the electrodes connected by said first conductor means, and a coil input that is connected to the output of said gate means so that said relay means interrupts said connection with one of said output signals and maintains the connection with the other output signal; and

    E. time delay means connected to the output of said gate means so that the transmission of the output of said gate means to said relay means is delayed by a predetermined time period.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×