Patents by Inventor Donald Gustafson

Donald Gustafson 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).

  • System and method of measuring defects in ferromagnetic materials
    Patent number: 9651471
    Abstract: Defects in ferromagnetic materials are detected and characterized by analyzing the items' magnetic fields to find portions of the magnetic fields that differ in characteristic ways from residual magnetic fields generated by non-defective portions of the items. The portions of the magnetic fields that differ in the characteristic ways correspond to locations of the defects. The residual magnetic fields correspond to portions of the items distant from the defects. The defect characterization may include volume of material lost due to each defect and/or width and/or depth of each defect.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: May 16, 2017
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Almir D. Davis, William J. Trinkle, Donald Gustafson, Philip S. Babcock, IV, Richard T. Berthold
  • System and method of measuring defects in ferromagnetic materials
    Patent number: 9651472
    Abstract: Defects in ferromagnetic materials are detected and characterized by analyzing the items' magnetic fields to find portions of the magnetic fields that differ in characteristic ways from residual magnetic fields generated by non-defective portions of the items. The portions of the magnetic fields that differ in the characteristic ways correspond to locations of the defects. The residual magnetic fields correspond to portions of the items distant from the defects. The defect characterization may include volume of material lost due to each defect and/or width and/or depth of each defect.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: May 16, 2017
    Assignee: The Charles Stark Draper Laboratory, Inc.
    Inventors: Almir D. Davis, William J. Trinkle, Donald Gustafson, Philip S. Babcock, IV, Richard T. Berthold
  • System and Method of Measuring Defects in Ferromagnetic Materials
    Publication number: 20160245737
    Abstract: Defects in ferromagnetic materials are detected and characterized by analyzing the items' magnetic fields to find portions of the magnetic fields that differ in characteristic ways from residual magnetic fields generated by non-defective portions of the items. The portions of the magnetic fields that differ in the characteristic ways correspond to locations of the defects. The residual magnetic fields correspond to portions of the items distant from the defects. The defect characterization may include volume of material lost due to each defect and/or width and/or depth of each defect.
    Type: Application
    Filed: April 29, 2016
    Publication date: August 25, 2016
    Inventors: Almir D. Davis, William J. Trinkle, Donald Gustafson, Philip S. Babcock, IV, Richard T. Berthold
  • System and Method of Measuring Defects in Ferromagnetic Materials
    Publication number: 20150330946
    Abstract: Defects in ferromagnetic materials are detected and characterized by analyzing the items' magnetic fields to find portions of the magnetic fields that differ in characteristic ways from residual magnetic fields generated by non-defective portions of the items. The portions of the magnetic fields that differ in the characteristic ways correspond to locations of the defects. The residual magnetic fields correspond to portions of the items distant from the defects. The defect characterization may include volume of material lost due to each defect and/or width and/or depth of each defect.
    Type: Application
    Filed: May 15, 2015
    Publication date: November 19, 2015
    Inventors: Almir D. Davis, William J. Trinkle, Donald Gustafson, Philip S. Babcock, IV, Richard T. Berthold