Patents by Inventor Christian J. Brahler

Christian J. Brahler 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).

  • Method of installing or replacing underground pipe
    Patent number: 6443657
    Abstract: The present invention is directed toward a method for replacing or lining existing underground pipe. The present invention replaces the pipe between two manholes without the need to dig associated trenches. A diagonal pilot hole is formed by a piercing tool. A guide cable is passed through the existing pipe and pilot hole and attached to a ramming tool operative in bringing new pipe through the pilot hole, and into the existing pipe. The ramming tool bursts the existing pipe into the surrounding soil and replaces the existing pipe with the new pipe.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: September 3, 2002
    Assignee: TT Technologies, Inc.
    Inventor: Christian J. Brahler