Patents by Inventor Asrar A. Khan

Asrar A. Khan 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).

  • Apparatus and system for thermographic identification of parts
    Patent number: 4795906
    Abstract: A method and apparatus for the non-destructive identification of coated and uncoated metal parts employing infrared thermography. The apparatus comprises a means for directing infrared radiation onto the surface of a part; a means for scanning the part surface for reflected infrared radiation; a means for capturing the reflected radiation and converting it into a signal representative of variations in radiation reflected from the surface of the part; means for etching an identifying code into the surface of the part; and means for displaying the signal as a video image. The method comprises altering the surface reflective characteristics of a part to produce an identifying code, irradiating the part with infrared radiation of a specific wavelength and detecting differences in the amount and intensity of radiation reflected from the part.
    Type: Grant
    Filed: September 2, 1987
    Date of Patent: January 3, 1989
    Assignee: Lockheed Corporation
    Inventors: Mark J. Adams, Elton M. Crisman, Jr., Asrar A. Khan
  • Method of and apparatus for thermographic identification of parts
    Patent number: 4733079
    Abstract: A method and apparatus for the non-destructive identification of coated and uncoated metal parts employing infrared thermography. The apparatus comprises a means for directing infrared radiation onto the surface of a part; a means for scanning the part surface for reflected infrared radiation; a means for capturing the reflected radiation and converting it into a signal representative of variations in radiation reflected from the surface of the part; means for etching an identifying code into the surface of the part; and means for displaying the signal as a video image. The method comprises altering the surface reflective characteristics of a part to produce an identifying code, irradiating the part with infrared radiation of a specific wavelength and detecting differences in the amount and intensity of radiation reflected from the part.
    Type: Grant
    Filed: December 13, 1985
    Date of Patent: March 22, 1988
    Assignee: Lockheed Corporation
    Inventors: Mark J. Adams, Elton M. Crisman, Jr., Asrar A. Khan