Patents by Inventor Ross Richard Nilson

Ross Richard Nilson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for communication in an electric fence wiring system
    Patent number: 6081198
    Abstract: A method of sending a communication signal. The method includes the step of using a pulse density modulated signal in an electric fence. The method is particularly useful for communication on an electric fence wiring system. The complete signal can be formed from the sum of a number of transmissions from a responder to a receiver over a period defined by a number of pulses from an electric fence energizer coupled to the electric fence wiring system.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: June 27, 2000
    Assignee: Tru-Test Limited
    Inventors: Paul Robert Adamson, Ross Richard Nilson, John Reginald Spray