Patents by Inventor Derek L. Plant

Derek L. Plant 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).

  • Railroad block/grade crossing warning system
    Patent number: 10556604
    Abstract: A train safety system comprises a cable connected to at least two conducting contacts, an electrical load between said two conducting magnetic contacts, and a DC track circuit associated with railroad tracks wherein the at least two conducting plates can be connected to each of the railroad rails in order to shunt the DC track circuit and alert oncoming trains of fouling of the tracks or crossing ahead.
    Type: Grant
    Filed: April 12, 2017
    Date of Patent: February 11, 2020
    Assignee: FERMI RESEARCH ALLIANCE, LLC
    Inventor: Derek L. Plant
  • RAILROAD BLOCK/GRADE CROSSING WARNING SYSTEM
    Publication number: 20170291620
    Abstract: A train safety system comprises a cable connected to at least two conducting contacts, an electrical load between said two conducting magnetic contacts, and a DC track circuit associated with railroad tracks wherein the at least two conducting plates can be connected to each of the railroad rails in order to shunt the DC track circuit and alert oncoming trains of fouling of the tracks or crossing ahead.
    Type: Application
    Filed: April 12, 2017
    Publication date: October 12, 2017
    Inventor: Derek L. Plant