Collision prevention system

• US 3,235,025 A
• Filed: 04/20/1964
• Issued: 02/15/1966
• Est. Priority Date: 04/20/1964
• Status: Expired due to Term

• Current Assignee: Clark E. Quinn
• Original Assignee: Clark E. Quinn
• Inventors: Quinn, Clark E.
• Application Number:
  US04/360,897
• Time in Patent Office: 666 Days
• US Class Current: 180/167
• CPC Class Codes: G05D 1/0265 using buried wires

Claims

1. IN A SYSTEM FOR PREVENTING COLLISIONS BETWEEN AUTOMOTIVE VEHICLES CARRYING SIGNAL TRANSMITTER MEANS AND TRAVELING ALONG A COMMON PATH;

RECEIVING APPARATUS CARRIED BY A FIRST VEHICLE AND INCLUDING FIRST OMNIDIRECTIONAL RECEIVER MEANS FORWARDLY MOUNTED ON THE VEHICLE AND RESPONSIVE TO A SIGNAL TRANSMITTED FROM THE SECOND VEHICLE TO DEVELOP A FIRST SIGNAL QUANTITY RELATED IN MAGNITUDE TO THE DISTANCE BETWEEN THE FIRST RECEIVER MEANS AND THE SECOND VEHICLE, SECOND RECEIVER MEANS REAWARDLY MOUNTED ON THE FIRST VEHICLE AND RESPONSIVE TO A SIGNAL TRANSMITTED FROM THE SECOND VEHICLE TO DEVELOP A SECOND SIGNAL QUANTITY RELATED IN MAGNITUDE TO THE DISTANCE BETWEEN THE SECOND RECEIVER MEANS AND THE SECOND VEHICLE, AND COMPARISON MEANS CONNECTED TO RECEIVE THE FIRST AND SECOND SIGNAL QUANTITIES AND TO DEVELOP AN OUTPUT SIGNAL INDICATING THE NECESSITY FOR DECREASING THE SPEED OF THE FIRST VEHICLE WHENEVER THE FIRST SIGNAL QUANTITY IS GREATER THAN THE SECOND SIGNAL QUANTITY.