Patents by Inventor Dale L. McLellan

Dale L. McLellan 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 for the nondestructive testing of cellular metallics
    Patent number: 4381666
    Abstract: Method of nondestructively measuring percent elongation or ductility of a cellular metallic. After surface preparation, the number of metal cells per unit area are counted, either manually or using an automated technique. The cell count is utilized in a relationship unique to the cellular metallic which correlates cell count to ductility in terms of percent elongation. The effects of the structural configuration of the cellular metallic, porosity and eutectic morphology are also discussed.
    Type: Grant
    Filed: April 27, 1981
    Date of Patent: May 3, 1983
    Assignee: The Boeing Company
    Inventors: Frederick J. Feiertag, Dale L. McLellan
  • Method of predicting ductility of a metallic cast eutectic alloy and equation therefor
    Patent number: H633
    Abstract: The invention is a method of predicting ductility of a metallic cast eutectic alloy; the discovery of a microstructural function based upon manufacturing steps that influence ductility; and including the microstructural characteristics of the number of cells of a primary metal of the alloy such as aluminum in an aluminum silicon magnesium alloy, the silicon eutectic, and the lack of soundness, i.e., porosity; and the discovery of a ductility prediction equation.
    Type: Grant
    Filed: September 28, 1983
    Date of Patent: June 6, 1989
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Dale L. McLellan