Patents by Inventor Ralph L. Brown

Ralph L. Brown 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).

  • Transformer coupling for transmitting direct current through a barrier
    Patent number: 4761724
    Abstract: The transmission system for transmitting direct current from an energy source on one side of an electrical and mechanical barrier to a load on the other side of the barrier utilizes a transformer comprising a primary core on one side of the transformer and a secondary core on the other side of the transformer. The cores are magnetically coupled selectively by moving a magnetic ferrite coupler in and out of alignment with the poles of the cores. The direct current from the energy source is converted to a time varying current by an oscillating circuit, which oscillating circuit is optically coupled to a secondary winding on the secondary core to interrupt oscillations upon the voltage in the secondary winding exceeding a preselected level.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: August 2, 1988
    Assignee: The United States as represented by the United States Department of Energy
    Inventors: Ralph L. Brown, Richard P. Guilford, John H. Stichman