Patents by Inventor Fred A. Christie

Fred A. Christie 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).

  • Aft-end ignition system for rocket motor
    Patent number: 4023497
    Abstract: An igniter for a rocket motor consisting of a cylindrical tube having an open end and a closed end, a reduced section at the closed end, a plurality of segments extending outwardly from near the closed end, a squib secured in the reduced section, a charge in the tube and a polyurethane foam plug in the open end of the tube.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: May 17, 1977
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of National Defence
    Inventors: Elias P. Morris, Fred A. Christie