Patents by Inventor Robert S. Griffing

Robert S. Griffing 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).

  • Patent number: 4711154
    Abstract: A propulsion device uses an electrically driven plasma injector to feed combustible fuel into a chamber prefilled with an oxidizer. A reaction between the two constituents augments the electrical power input to produce amplified pressure for the acceleration of projectiles.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: December 8, 1987
    Assignee: FMC Corporation
    Inventors: George Chryssomallis, Robert S. Griffing
  • Patent number: 4653380
    Abstract: A bipropellant gun in which an immiscible hydrocarbon fuel and oxidizer are combined in the gun's combustion chamber just prior to, or simultaneous with, ignition thereof. The oxidizer consists of hydrogen peroxide having a concentration of less than 73 percent by weight. In one embodiment, the oxidizer alone is bulk loaded into the combustion chamber and a powdered solid hydrocarbon fuel is dispersed into the oxidizer by the function of a pyrotechnic igniter. In another embodiment, the oxidizer and a liquid hydrocarbon are emulsified and the emulsion is bulk loaded into the combustion chamber with a pyrotechnic igniter subsequently initiating combustion. In each embodiment, the volume of the combustion chamber exceeds the volume of fuel and oxidizer and provides a void or headspace of compressible gas which limits the rate of pressure rise in the chamber.
    Type: Grant
    Filed: June 15, 1984
    Date of Patent: March 31, 1987
    Assignee: FMC Corporation
    Inventors: Robert S. Griffing, David W. Sullivan