Patents by Inventor Dennis W. Burt

Dennis W. Burt 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).

  • Optical fibre U.V. and/or I.R. line fire detector
    Patent number: 4418338
    Abstract: A fire and/or heat detection system comprises an optical fibre which is either unsheathed or sheathed in a transparent material such that U.V. or I.R. radiation in the vicinity of the fibre passes through the skin into the body of the fibre. Means are connected to the ends of the fibre to measure these radiations.
    Type: Grant
    Filed: November 20, 1980
    Date of Patent: November 29, 1983
    Inventor: Dennis W. Burt
  • Fire, temperature or heat detector
    Patent number: 4175437
    Abstract: A fire, temperature or heat detection system is disclosed which comprises a cable having at least two conductors separated by insulation whose electrical characteristics vary with temperature, and means connected to the conductors of the cable for detecting variations in the electrical characteristics of the insulation.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: November 27, 1979
    Inventor: Dennis W. Burt