Patents by Inventor Robert E. McDonough

Robert E. McDonough 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 supporting dam assembly for pipeline construction and method
    Patent number: 4844657
    Abstract: A pipe supporting dam assembly and method for pipeline construction employing a planar dam sheet with a collar and a flexible sleeve for receiving and supporting the pipe, and clamping means to seal the collar to the outside of the pipe to prevent fill material in the trench being washed away by groundwater along the outside surface of the pipe, particularly in the case of sloping pipeline construction.
    Type: Grant
    Filed: September 30, 1988
    Date of Patent: July 4, 1989
    Inventors: James A. Ripley, Robert E. McDonough