Patents by Inventor Albert Stingel Birks

Albert Stingel Birks 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 and apparatus for magnetic inspection through adjustable pulsed alternating and direct current magnetic fields
    Patent number: 4058762
    Abstract: An illustrative embodiment of the invention provides a method and apparatus for magnetic inspection of areas of interest in ferromagnetic material by means of both alternating and direct current induced magnetic fields. Moreover, the magnetic fields may be pulsed sequentially and/or simultaneously to detect defects deep within the area of interest.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: November 15, 1977
    Assignee: The Babcock & Wilcox Company
    Inventors: Amos Earl Holt, William Eugene Lawrie, Albert Stingel Birks