초록 ▼

A set of battery jumper cables includes a pair of single pole, single throw switches, or equivalent semiconductor implement switches. The switches are connected in series between the battery connection terminals of each cable in the set to prevent arcing. Control wires and a delay circuit connect th

A set of battery jumper cables includes a pair of single pole, single throw switches, or equivalent semiconductor implement switches. The switches are connected in series between the battery connection terminals of each cable in the set to prevent arcing. Control wires and a delay circuit connect the two terminals at one end of the set to the operating coil of one of the single pole switches. Similarly, another set of control wires and a delay circuit connect the terminals at the other end of the set to the operating coil of the other switch. In operation, these two switches in their unenergized state are open and automatically current flow through the cable set until after all four cable terminals are connected respectively to battery terminals and the relay delay has timed out, thus preventing arcing as the terminals are connected and disconnected or if the terminals at one end are shorted to each other. A pair of double pole, double throw, relay coil operated switches, or equivalent semiconductor implemented switches, automatically match the polarity of the battery terminals interconnected by the jumper cables. Because of the delay in closing the single pole switches, these double pole switches establish a proper polarity match before the single pole switches close.

대표청구항 ▼

[ Having thus described my invention, what I claim as new and desire to secure by Letters Patent is as follows:] [1.] A jumper cable apparatus for automatically connecting the positive terminal of a first battery to the positive terminal of a second battery and for connecting the negative terminal o

[ Having thus described my invention, what I claim as new and desire to secure by Letters Patent is as follows:] [1.] A jumper cable apparatus for automatically connecting the positive terminal of a first battery to the positive terminal of a second battery and for connecting the negative terminal of the first battery to the negative terminal of the second battery, and for automatically preventing arcing, comprising in combination:said jumper cable apparatus having a first pair of connectors for connecting to a pair of terminals of said first battery and a second pair of connectors for connecting to a pair of terminals of said second battery;each of said connectors including two contacts electrically insulated from one another with a control wire connected to one of said contacts and a charging wire connected to the other of said contacts;a first switch connecting via charging wire one of said pair of terminals of said first battery to one of said pair of terminals of said second battery;a second switch connecting via charging wire the other of said pair of terminals of said first battery to the other of said pair of terminals of said second battery;said first switch being connected to said first pair of connectors by control wires and a delay circuit so that the switch is closed after both of said first pair of connectors terminals are connected to said pair of terminals of said first battery; andsaid second switch being connected to said second pair of connectors by control wires and a delay circuit so that the switch is closed after both of said second pair of connectors are connected to said pair of terminals of said second battery.