×

VEHICLE LIGHT CONTROL AND WARNING INDICATOR SYSTEM

  • US 3,581,276 A
  • Filed: 03/22/1968
  • Issued: 05/25/1971
  • Est. Priority Date: 03/22/1968
  • Status: Expired due to Term
First Claim
Patent Images

1. An automatic lamp disconnecting system for an automotive vehicle electrical system having a source of electrical energy, a prime mover controlling system for a vehicle driving prime mover including a prime mover controlling switch connected between the source of electrical energy and a prime mover operating circuit, and a lighting system including an exterior illuminating lamp and a control switch for controlling the flow of current from the source of electrical energy to the illuminating lamp, wherein the improvement comprises:

  • a relay having normally open contacts and electromagnetic actuating meaNs operative when energized from said source to close said normally open contacts;

    a lamp energizing circuit between said lamp and said source including said normally open contacts and said control switch in series connection;

    a first relay energizing circuit connecting said relay actuating means to said source through said prime mover controlling switch for energizing said actuating means to close said relay contacts upon closing of the prime mover controlling switch;

    a second relay energizing circuit independent of said prime mover controlling switch to maintain the actuating means of said relay energized following opening of the prime mover controlling switch, said second relay energizing circuit connecting the actuating means of said relay to said source and including said relay contacts and said control switch in series connection;

    a normally closed time delay switch connected in said second energizing circuit for automatically deenergizing the actuating means of said relay, if energized, a predetermined time after opening of prime mover controlling switch; and

    operating means for the time delay switch connected to said second relay energizing circuit and responsive to energization of said second relay energizing circuit only when said prime mover controlling switch is opened to effect opening of said time delay switch a predetermined time after opening of the prime mover controlling switch.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×