Patents by Inventor Douglas M. Melegari

Douglas M. Melegari 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).

  • Pipe pulling grip
    Patent number: 4969677
    Abstract: A pipe pulling grip for use, for example, in pulling irrigation pipe underground includes a chain, a tapered nose cone, a hollow pipe, and a pipe grip. The chain is affixed to the tapered portion of the nose cone and the other end of the nose cone is affixed to one end of the pipe. Lastly, one end of the pipe grip is affixed inside the pipe.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: November 13, 1990
    Inventor: Douglas M. Melegari