Patents by Inventor Nora M. DeVries

Nora M. DeVries 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).

  • Liquid propellant igniter
    Patent number: H1598
    Abstract: A liquid propellant igniter uses axially aligned ring electrodes separated y high strength ring-shaped insulators and a high-voltage electrode assembly to provide reliable electrical discharges for initiating and igniting a propellant.
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: October 1, 1996
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: John J. O'Reilly, Nora M. DeVries, Robert L. Talley