System for remotely controlling the operation of a power distribution network

• US 3,359,551 A
• Filed: 01/24/1963
• Issued: 12/19/1967
• Est. Priority Date: 01/24/1963
• Status: Expired due to Term

• Current Assignee: Richard L. Dennison
• Original Assignee: Richard L. Dennison
• Inventors: Dennison, Richard L.
• Application Number:
  US04/253,537
• Time in Patent Office: 1,790 Days
• US Class Current: 340/9.1
• CPC Class Codes: H02J 13/00007 using the power network as support for the transmission
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y04S 40/121 using the power network as support for the transmission

Claims

1. A LOAD CONTROL SYSTEM COMPRISING:

(A) A POWER LINE;

(B) A PLURALITY OF OSCILLATORS FOR SUPPLYING CARRIER SIGNALS OF DIFFERENT FREQUENCIES TO SAID POWER LINE;

(C) A RELAY MEANS ASSOCIATED WITH EACH OSCILLATOR;

(D) MEANS INTERPOSED BETWEEN SAID VARIOUS RELAY MEANS AND SAID POWER LINE FOR CONNECTING EACH RELAY MEANS TO SAID POWER LINE SO AS TO APPLY A CARRIER SIGNAL TO SAID LINE HAVING THE FREQUENCY OF THE OSCILLATOR WITH WHICH THE PARTICULAR RELAY MEANS THAT IS THEN CONNECTED IS ASSOCIATED;

(E) MEANS FOR TRIGGERING SAID LAST-MENTIONED MEANS INTO OPERATION A PRESCRIBED NUMBER OF TIMES SO AS TO INTERRUPTEDLY APPLY THAT CARRIER SIGNAL TO SAID LINE AND THEREBY PROVIDE A SERIES OF PULSES FOR TRANSMISSION ALONG SAID LINE;

(F) MEANS FOR PRESELECTING THE SEQUENCE SAID RELAY MEANS ARE TO BE ENERGIZED;

(G) MEANS CONNECTED TO SAID DETERMINING MEANS FOR STARTING SAID TRIGGERING MEANS EACH TIME A RELAY MEANS IS ENERGIZED;