Patents by Inventor Allen Sather

Allen Sather 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).

  • Process for the detection of micro-cracks
    Patent number: 4172224
    Abstract: A process for the nondestructive testing of ceramic objects to detect the presence of defects and micro-cracks in the surface in which a solution of silver nitrate is applied to the surface of the object which penetrates into the surface defects, drying the object so that the silver nitrate remains in the defects, and preparing an X-ray radiograph whereby any defects and micro-cracks will appear in the radiograph.
    Type: Grant
    Filed: October 24, 1978
    Date of Patent: October 23, 1979
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Norman Lapinski, Allen Sather