Patents by Inventor Kenneth W. Lefever

Kenneth W. Lefever 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).

  • Earthquake fault zone pipeline construction method and arrangement
    Patent number: 3952529
    Abstract: Where a pipeline is to cross an earthquake fault zone, a trench is dug in the earth substantially wider and deeper than the diameter of the pipeline. The pipeline is installed in the trench in a bed of spherical bodies, which thereafter function during an earthquake to partially absorb compression and shear waves, and to disperse forces acting on the pipeline, whereby the effect of such forces on the pipeline is minimized with the result that rupture does not occur.
    Type: Grant
    Filed: April 12, 1974
    Date of Patent: April 27, 1976
    Inventor: Kenneth W. Lefever