Patents by Inventor Gerald G. Northcutt

Gerald G. Northcutt 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 lining system
    Patent number: 5019417
    Abstract: A system for pipe lining including a forward seal and a following spreader defining a chamber therebetween for receiving flowable lining material. The spreader is immediately followed by a cylindrical elongate platen formed of radiant-energy transparent material. A radiant energy source is mounted in the platen for transmission of radiant energy through the platen and into the lining material simultaneously with the forming of the lining material into position by the platen as the apparatus moves along the interior of the pipe.
    Type: Grant
    Filed: August 15, 1989
    Date of Patent: May 28, 1991
    Inventor: Gerald G. Northcutt