Patents by Inventor Billy E. Fox

Billy E. Fox 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).

  • Fireplace damper indicator
    Patent number: 4350142
    Abstract: Disclosed herein is an indicator system and linkage for a fireplace damper whereby the open and closed modes of a fireplace damper are readily indicated without the necessity of inspecting the damper itself. The apparatus includes a series of links which alternatively expose a pair of indicators which reveal the mode that the damper door is currently in.
    Type: Grant
    Filed: January 5, 1981
    Date of Patent: September 21, 1982
    Inventors: Charles L. Beyer, Billy E. Fox