Patents by Inventor Stephen P. Field

Stephen P. Field 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).

  • Electrothermal gas thrust units
    Patent number: 4461144
    Abstract: An electrothermal gas thrust unit for a space vehicle has a thrust chamber with an extension tube extending upstream therefrom. An injector tube leads into the extension tube and a diaphragm contacting the extension tube adjacent its juncture with the injection tube conducts heat away from that juncture to maintain the local temperature at a level below that at which liquid fuel (such as hydrazine) vaporizes.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: July 24, 1984
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventor: Stephen P. Field