Emergency traffic control system

• US 3,257,641 A
• Filed: 05/31/1963
• Issued: 06/21/1966
• Est. Priority Date: 05/31/1963
• Status: Expired due to Term

• Current Assignee: Elmasian Living Trust
• Original Assignee: Patsy C. Campana, Thomas T. Chrysler
• Inventors: Campana, Patsy C., Chrysler, Thomas T.
• Application Number:
  US04/284,433
• Time in Patent Office: 1,117 Days
• US Class Current: 340/906
• CPC Class Codes: G08G 1/087 Override of traffic control, e.g. by signal transmitted by an emergency vehicle

Claims

1. A REMOTELY CONTROLLABLE SIGNAL SYSTEM COMPRISING, A TRAFFICE LIGHT HAVING GO, CAUTIN AND STOP INDICATING DISPLAY MEANS, A FIRST PRE-PROGRAMMED SEQUENCING MEANS PERIODICALLY PERMITTING ACTUATION OF SAID INDICATING MEANS IN ACCORDANCE WITH ITS PRE-PROGRAMMED SEQUENCE, SAID FIRST PRE-PROGRAMMED SEQUENCE MEANS BEING OPERATIVELY CONNECTED TO A FIRST SOURCE OF POWER FOR OPERATION THEREOF, NORMALLY CLOSED SWITCHING MEANS OPERATIVELY CONNECTING SAID TRAFFIC LIGHT OF SAID FIRST SOURCE OF POWER AND PERMITTION ACTUATION OF SAID TRAFFICE LIGHT INDICATING MEANS IN ACCORDANCE WITH SAID FIRST PRE-PROGRAMMED SEQUENCING MEANS, A SECOND PRE-PROGRAMMED SEQUENCING MEANS OPERATIVELY CONNECTED TO A SECOND SOURCE OF OPERATING POTENTIAL, SAID SECOND PRE-PROGRAMMED SEQUENCING MEANS BEING NORMALLY IN AN INOPERATIVE CONDITION, SIGNAL GENERATING MEANS CARRIED BY AN EMERGENCY VEHICLE AND OPERATIVE AT THE COMMAND OF THE VEHICLE OPERATOR TO EMIT A SIGNAL OF PREDETERMINED FREQUENCY AND CHARACTERISTICS, MEANS RESPONSIVE TO A SIGNAL FROM SAID SIGNAL GENERATING MEANS OPERATIVELY CONNECTED IN CIRCUIT WITH SAID SECOND PRE-PROGRAMMED SEQUENCING MEANS AND SAID SWITCHING MEANS, SAID RESPONSIVE MEANS BEING RESPONSIVE TO SAID SIGNAL GENERATED BY SAID SIGNAL GNERATING MEANS TO RENDER SAID SWITCHING MEANS TO ITS OPEN STATE THEREBY ISOLATING SAID TRAFFIC SIGNAL INDICATING MEANS FROM SAID FIRST SOURCE OF POTENTIAL, SAID FIRST PRE-PROGRAMMED SEQUENCING MEANS CONTINUING TO OPERATE UNINTERRUPTEDLY DURIGN SAID ISOLATION OF SAID FIRST SOURCE OF POTENTIAL FROM SAID TRAFFICE SIGNAL INDICATING MEANS, SAID MEANS RESPONSIVE CONCURRENTLY BEING OPERATIVE TO CONNECT SAID SECOND PRE-PROGRAMMED SEQUENCING MEANS IN CIRCUIT WITH SAID TRAFFIC LIGHT INDICATING MEANS FOR SEQEUNTIAL OPERATION IN ACCORDANCE WITH THE PRE-PROGRAM OF SAID SECOND SEQUENCING MEANS SAID TRAFFIC LIGHT INDICATING MEANS REMAINING UNDER THE CONTROL OF SAID SECOND PRE-PROGRAMMED SEQUENCING MEANS FOR A PRE-ESTABLISHED PERIOD OF TIME WHEREUPON THE TRAFFIC SIGNAL INDICATING MEANS WILL AGAIN THE CONTROLLED BY SAID FIRST PREPROGRAMMED SEQUENCING MEANS AT THE CORRECT POINT OF SAID FIRST PRE-PROGRAMMED SEQUENCING MEANS, THE SAME AS IF SAID SIGNAL GENERATED BY SAID EMERGENCY VEHICLE HAD NOT OCCURRED.