Patents by Inventor Susan L. Marr

Susan L. Marr 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: 5373306
    Abstract: An RF-transparent sunshield membrane covers an antenna reflector such as a parabolic dish. The membrane includes a single dielectric sheet of polyimide film 1 mil thick. The surface of the film facing away from the reflector is coated with a layer of semiconductor material such as vapor-deposited germanium having a thickness in the range of 200 .ANG. to 600 .ANG.. In another embodiment of the invention, the surface of the film facing the reflector may be reinforced by an adhesively attached polyester or glass fiber mesh.
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: December 13, 1994
    Assignee: Martin Marietta Corporation
    Inventors: Leo J. Amore, Susan L. Marr, Theodore A. Harris, Jr., Alexander Bogorad, Charles K. Bowman, Jr.
  • Patent number: 5373305
    Abstract: An RF-transparent sunshield membrane covers an antenna reflector such as a parabolic dish. The membrane includes at least two dielectric sheets of polyimide film 1 mil thick. The surface of the outer film facing away from the reflector is coated with an electrically semiconductive coating such as vapor-deposited germanium having a thickness in the range of 200 .ANG. to 600 .ANG.. A member, such as a glass fiber mat, may be located in the space between the two dielectric sheets for maintaining the sheets in spaced-apart relationship. In another embodiment of the invention, the surface of the film facing the reflector may be reinforced by an adhesively attached polyester or glass fiber mesh.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: December 13, 1994
    Assignee: Martin Marietta Corporation
    Inventors: Albert Lepore, Jr., Hamilton Wong, Susan L. Marr, Leo J. Amore