Patents by Inventor Maggie L. Berry

Maggie L. Berry 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).

  • Method of radiographic inspection of wooden members
    Patent number: 4899356
    Abstract: The invention is a method of radiographic inspection of a wooden specimen 11 for internal defects which includes the steps of introducing a radiopaque penetrant into any internal defects in said specimen 11 through surface openings therein; passing a beam of radiation through a portion of the specimen to be inspected; and making a radiographic film image of the radiation passing through said specimen, the radiopaque penetrant in said specimen absorbing a portion of said radiation passing therethrough, thereby enhancing the resulting image of said internal defects in said specimen 11.
    Type: Grant
    Filed: November 25, 1987
    Date of Patent: February 6, 1990
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Maggie L. Berry, Robert F. Berry, Jr.