Patents by Inventor Robert Geais

Robert Geais 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).

  • Patent number: 4709639
    Abstract: A railway system utilizes a discontinuous linear motor for the propulsion of a train composed of a plurality of transport units joined end-to-end, each including a group of vehicles normally maintained coupled to each other. The transport units are of the same length L and carry secondary elements of the linear motor at regular intervals. A track for the train has active sections incorporating primary inductors of the motor and separated by inactive track sections having no primary elements. The primary inductors within an active track section are disposed at regular intervals L, from center to center. In the active track sections, the linear motor provides power to the train proportional to the number of transport units.
    Type: Grant
    Filed: October 28, 1985
    Date of Patent: December 1, 1987
    Inventor: Robert Geais