Patents by Inventor Gregory D. Colman

Gregory D. Colman 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).

  • Pyrogen igniter ramjet ignition system
    Patent number: 4110977
    Abstract: An ignition system for initiating combustion in a ramjet engine characterd by a replaceable propellant grain type igniter set into the wall of a ram air tube supplying air and fuel to the engine combustion chamber. The igniter is fitted into a small available void space between a fairing at the rear of the ram air tube and a fin member which intersects the fairing. The direction of the igniter flame is controlled by angular tubular connections communicating with the ram air tube.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: September 5, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Frank W. Jandl, Gregory D. Colman