Patents by Inventor Christopher Joe Dever

Christopher Joe Dever 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).

  • Patent number: 6929430
    Abstract: A method and tool are disclosed for removing a plastic water closet flange from the waste pipe to which it is attached so that a new flange may be chemically bonded to the existing waste pipe. A preferred embodiment of the water closet flange removal tool includes an axial shaft, a cylindrical guide body attached to a lower end of the shaft, the guide body having an outer diameter slightly less than the inner diameter of the waste pipe so that it is slidably insertable therein, and a cylindrical-walled cutter, having an inside diameter slightly greater than the outer diameter of the waste pipe, mounted above the guide body. For a preferred embodiment of the tool, both the guide body and the cylindrical-walled cutter are coaxially mounted on the shaft. The cylindrical-walled cutter is open at the lower end thereof so that it can slide over the waste pipe as the flange is cut therefrom.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: August 16, 2005
    Inventor: Christopher Joe Dever
  • Publication number: 20020150433
    Abstract: A method and tool are disclosed for removing a plastic water closet flange from the waste pipe to which it is attached so that a new flange may be chemically bonded to the existing waste pipe. A preferred embodiment of the water closet flange removal tool includes an axial shaft, a cylindrical guide body attached to a lower end of the shaft, the guide body having an outer diameter slightly less than the inner diameter of the waste pipe so that it is slidably insertable therein, and a cylindrical-walled cutter, having an inside diameter slightly greater than the outer diameter of the waste pipe, mounted above the guide body. For a preferred embodiment of the tool, both the guide body and the cylindrical-walled cutter are coaxially mounted on the shaft. The cylindrical-walled cutter is open at the lower end thereof so that it can slide over the waste pipe as the flange is cut therefrom.
    Type: Application
    Filed: May 21, 2002
    Publication date: October 17, 2002
    Inventor: Christopher Joe Dever