Patents Assigned to Paul T. Frost
  • Patent number: 4499376
    Abstract: Apparatus for measuring the quantity of opaque material within a fluid stream which includes apparatus for directing an associated fluid stream. A beam of infrared light extends through the associated fluid and means are provided for sensing the intensity of the beam of infrared light after passing through the associated fluid. Means is also provided for producing a signal which is a function of an output of the means for sensing.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: February 12, 1985
    Assignee: Paul T. Frost
    Inventors: Paul T. Frost, Robert T. Thomas