Patents by Inventor Charles B. McLean

Charles B. McLean 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).

  • Systems and methods for testing two-color detectors
    Patent number: 10184831
    Abstract: A method for calibrating a test light to simulate a fire includes measuring a baseline resistance induced in a sensor cell of a two-color detector in response to a controlled fire. The method includes monitoring a test resistance induced in the sensor cell in response to exposure to emissions from a test light and adjusting the emissions of the test light until the test resistance of the sensor cell equals the baseline resistance of the sensor cell to achieve a calibration setting for the test light. A test light for a detector includes a housing and a first LED within the housing having a first emission wavelength. A second LED is within the housing. The second LED has a second emission wavelength. The second emission wavelength is different than the first emission wavelength.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: January 22, 2019
    Assignee: Kidde Technologies, Inc.
    Inventors: Mark T. Kern, Ken Bell, Terry Simpson, Christopher Wilson, David Frasure, Charles B. McLean, Clinton E. Piland
  • SYSTEMS AND METHODS FOR TESTING TWO-COLOR DETECTORS
    Publication number: 20170205286
    Abstract: A method for calibrating a test light to simulate a fire includes measuring a baseline resistance induced in a sensor cell of a two-color detector in response to a controlled fire. The method includes monitoring a test resistance induced in the sensor cell in response to exposure to emissions from a test light and adjusting the emissions of the test light until the test resistance of the sensor cell equals the baseline resistance of the sensor cell to achieve a calibration setting for the test light. A test light for a detector includes a housing and a first LED within the housing having a first emission wavelength. A second LED is within the housing. The second LED has a second emission wavelength. The second emission wavelength is different than the first emission wavelength.
    Type: Application
    Filed: January 20, 2016
    Publication date: July 20, 2017
    Inventors: Mark T. Kern, Ken Bell, Terry Simpson, Christopher Wilson, David Frasure, Charles B. McLean, Clinton E. Piland