Patents Assigned to Dale J. Thompson
  • Patent number: 4319487
    Abstract: Avionics apparatus for providing to a pilot readings of temperature, pressure altitude, and density altitude. Sensors provide electrical signals responsive to ambient temperature and pressure, and a functional module operates on signals derived from said sensors to provide signals indicative of the pressure altitude and density altitude. A multiplexer and display respond to a mode selection switch to provide visual readouts of temperature in degrees Fahrenheit and in degrees Celsius, and altitude.
    Type: Grant
    Filed: January 25, 1980
    Date of Patent: March 16, 1982
    Assignee: Dale J. Thompson
    Inventors: Wayne C. Haase, Dale J. Thompson