Patents by Inventor Bruce S. Eisenhart

Bruce S. Eisenhart 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: 4109192
    Abstract: A circuit for driving capacitive loads which utilizes the temporary storage characteristics of an inductor in a resonant LC configuration to force current to flow from a low potential location to a high potential location at selected switching times. The circuit is controlled by an externally activated switching network in series with the inductor and capacitive load which network comprises two unidirectional conducting branches oriented to allow current flow in opposite directions through the respective branches. By appropriately opening and closing switches in the two branches, the switching network can regulate the flow of current through the inductor to either charge or discharge the capacitive load without the necessity of dissipating energy when the capacitive load is either charged or discharged. Components are also included for replacing the inherent power losses of the circuit.
    Type: Grant
    Filed: June 25, 1976
    Date of Patent: August 22, 1978
    Assignee: Hughes Aircraft Company
    Inventors: Ronald Brent Burbank, Bruce S. Eisenhart, James R. Hall, James M. Hamilton