×

Current supplying device

  • US 4,876,496 A
  • Filed: 02/22/1988
  • Issued: 10/24/1989
  • Est. Priority Date: 02/22/1988
  • Status: Expired due to Fees
First Claim
Patent Images

1. A current supplying device connectable across the positive and negative terminals of a battery for supplying a direct current to said positive terminal, said device comprising:

  • means for connecting said device to a power supply for supplying said direct current;

    a pair of circuits each biased to an inoperative condition, each of said circuits being actuable to an operative position to supply said direct current to one of said terminals;

    polarity detection means in communication with said circuits, said polarity detection means for sensing the polarity of said terminals and generating switching signals upon determination of the polarity of said terminals;

    switch means responsive to said switching signals to actuate one of said circuits to said operative condition to supply said direct current to said positive terminal;

    overload protection means for limiting the direct current applied to said polarity detection means and inhibiting the operation thereof in the event of a current overload; and

    charge detection means for monitoring the charge of said battery and electrically isolating said polarity detection means from said terminals when said battery is fully charged to prevent overcharging of said battery.

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