Patents by Inventor Fred S. Ellers

Fred S. Ellers 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).

  • Methods for emplacing and maintaining transmission lines
    Patent number: 4048807
    Abstract: A transmission line is established between two distant points utilizing a pair of pipelines, one of which is insertable within the other. The outer or larger diameter pipeline is first installed or laid between the two distant points and the pipe is filled with a suitable high density lubricating liquid. The other pipeline which carries and houses the transmssion line is initially filled with an inert gas and in this condition the pipeline and transmission line are "floated" into and through the outer pipeline. After both the inner pipeline and transmission line are in place inside the outer pipeline, the high density lubricating liquid between the pipes may be removed and substituted with a high thermal-conducting non-polluting fluid. The inert gas within the inner pipeline is also replaced with a standard electrical grade insulating oil.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: September 20, 1977
    Assignees: Bechtel International Corporation, The Okonite Company
    Inventors: Fred S. Ellers, Hugh G. Hally, Edward E. McIlveen, William A. Doble