Patents by Inventor Dan Casey Johnson

Dan Casey Johnson 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).

  • Heat detector tester
    Patent number: 8353625
    Abstract: This invention relates to a device for testing a heat detector. The device has a housing that is shaped to surround a heat detector and includes a heating element. A fan is located near the heating element and is adapted to activate the heat detector by increasing the temperature around the heat detector. The housing also includes a temperature device that measures the temperature near the heat detector. Furthermore, a display is attached to the housing to show the temperature around the heat detector during testing.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: January 15, 2013
    Assignee: HSI Fire & Safety Group, LLC
    Inventors: Margaret A. Feiter, Scott J. Rote, Aaron B. Eiger, Dan Casey Johnson