Patents by Inventor Joseph L. Materas

Joseph L. Materas 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).

  • Bi-propellant blade valve assembly
    Patent number: 4739613
    Abstract: A compact, valve assembly (10) is provided having multiple chambers. A forward chamber (14) retains dual T-shaped blades (36) having shaped orifices (38) for controllably metering at least two fluids passing through the valve assembly. The valve assembly is also provided with a servo-valve assembly (70) and a piston indicator (62) assembly in cooperative association with the valve assembly.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: April 26, 1988
    Assignee: Rockwell International Corporation
    Inventors: Willard A. Gillon, Jr., Joseph L. Materas