Patents by Inventor Harry J. McCracken

Harry J. McCracken 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).

  • Parabolic dish and method of constructing same
    Patent number: 4001836
    Abstract: A parabolic dish is constructed by forming from relatively thin flexible sheet material a planar assembly of relatively narrow curved strips arranged side by side and having arcuate longitudinal edges which conform to curves defined by certain parametric equations, such that the strip assembly may be deformed to a parabolic dish configuration wherein the adjacent strip edges are disposed contiguous one another in planes parallel to a plane containing the principle axis of the dish, and joining the strips of the deformed strip assembly to retain the latter in its parabolic dish configuration.
    Type: Grant
    Filed: February 28, 1975
    Date of Patent: January 4, 1977
    Assignee: TRW Inc.
    Inventors: John S. Archer, Harry J. McCracken