Patents by Inventor Charles E. Spangler

Charles E. Spangler 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 separating admixed contaminants from superalloy metal powder
    Patent number: 7153377
    Abstract: A method is provided for separating superalloy metal powder from contaminants, such as process-produced contaminants, by enhancing the magnetic properties thereof in a carburizing atmosphere followed by magnetic separation of the contaminants from the superalloy metal powder to thereby enhance the concentration of the contaminants. Heating or mechanical agitation or both are employed to resist agglomeration of the metal powder before magnetic separation thereof from the contaminants. Certain preferred times and temperatures are disclosed.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: December 26, 2006
    Assignee: R. J. Lee Group, Inc.
    Inventors: Charles E. Spangler, Jr., William J. Murphy
  • Method of separating superalloy metal powder from admixed contaminants
    Patent number: 7056400
    Abstract: A method is provided for separating superalloy metal powder from contaminants, such as process-produced contaminants, by enhancing the magnetic properties thereof, such as by oxidizing or leaching of chromium, for example, followed by magnetic separation of the contaminants from the superalloy metal powder to thereby enhance the concentration of the contaminants. Heating conditions or mechanical agitation or both are employed to resist agglomeration of the metal powder before magnetic separation thereof from the contaminants. Certain preferred times and temperatures are disclosed.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: June 6, 2006
    Assignee: R. J. Lee Group, Inc.
    Inventors: Charles E. Spangler, Jr., Frederick Carl Schwerer, III, William J. Murphy
  • Method and apparatus for the detection of stagnant regions in a fluidized bed or in pneumatic conveying lines
    Patent number: 4275353
    Abstract: A probe electrode is mounted across the wall of a fluidized bed column or solid particles feed thereto, and an air gap between the probe electrode and a neon lamp causes lamp flashes when the particles are normally circulating and allows the detection of stagnancy of the particles in absence of light flashes.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: June 23, 1981
    Assignee: Westinghouse Electric Corp.
    Inventors: Wen C. Yang, Charles E. Spangler, Joe P. Morris, Dale L. Keairns