Patents by Inventor Edward F. Sullivan

Edward F. Sullivan 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).

  • Electrically heated pipe thawing apparatus
    Patent number: 4449553
    Abstract: Apparatus for thawing a pipe having a frozen blockage therein, the apparatus including a self-contained unit on wheels, the unit including a tank for holding water, an electric immersion heater in the tank for heating the water to a temperature of 100.degree.-150.degree. F., a pump supported on the unit, a foot switch connected to the pump, a pressure control connected to the pump, a reel of flexilbe polyurethane hose and a reel of return hose mounted on respective sides of the tank, and a conical coupling for connecting to one end of the frozen pipe, the coupling including a compression fitting for engaging around the flexible hose, and a T-shaped return fitting for connecting to the return hose.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: May 22, 1984
    Inventors: Edward F. Sullivan, Patrick Sullivan, Walter C. Schultz
  • Golf stance and swing practice device or the like
    Patent number: D244791
    Type: Grant
    Filed: September 24, 1975
    Date of Patent: June 21, 1977
    Inventor: Edward F. Sullivan, Jr.