Patents Assigned to Alison Control Inc.
  • Ultraviolet radiation detector
    Patent number: 4016424
    Abstract: A system for detecting ultraviolet (UV) radiations and particularly adapted for the detection of fire. Electrical pulses are produced at a rate proportional to the intensity of UV energy received by a UV detector tube. An alarm and/or control function is actuated only when the tube pulse rate and pulse rate duration correspond to predetermined values. In addition, the alarm and/or control function is inhibited when the detector tube is exposed to non-fire created UV energy.
    Type: Grant
    Filed: October 20, 1975
    Date of Patent: April 5, 1977
    Assignee: Alison Control Inc.
    Inventor: Richard Traina