Patents by Inventor Charles E. Brubaker

Charles E. Brubaker 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: 4857925
    Abstract: Each vehicle of a transport system is provided with a short range transmitter which continuously transmits the vehicles route designation in digitally encoded form, preferably by short wave radio. Some or all stops are each provided with a short range receiver decoder and display means. All transmitters and receivers operate on the same frequency. The receiver stores codes for all routes with stops at the receiver location, matches encoded signals it receives with the stored codes and displays the matched designation.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: August 15, 1989
    Inventor: Charles E. Brubaker