Patents by Inventor Mohammad A. Khaleel

Mohammad A. Khaleel 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).

  • Patent number: 8486582
    Abstract: A surface modification to prevent oxide scale spallation is disclosed. The surface modification includes a ferritic stainless steel substrate having a modified surface. A cross-section of the modified surface exhibits a periodic morphology. The periodic morphology does not exceed a critical buckling length, which is equivalent to the length of a wave attribute observed in the cross section periodic morphology. The modified surface can be created using at least one of the following processes: shot peening, surface blasting and surface grinding. A coating can be applied to the modified surface.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: July 16, 2013
    Assignee: Battelle Memorial Institute
    Inventors: Elizabeth V. Stephens, Xin Sun, Wenning Liu, Jeffry W. Stevenson, Wayne Surdoval, Mohammad A. Khaleel
  • Patent number: 6796144
    Abstract: Techniques for measuring the temperature at various locations through the thickness of glass products and to control the glass processing operation with the sensed temperature information are disclosed. Fluorescence emission of iron or cerium in glass is excited and imaged onto segmented detectors. Spatially resolved temperature data are obtained through correlation of the detected photoluminescence signal with location within the glass. In one form the detected photoluminescence is compared to detected scattered excitation light to determine temperature. Stress information is obtained from the time history of the temperature profile data and used to evaluate the quality of processed glass. A heating or cooling rate of the glass is also controlled to maintain a predetermined desired temperature profile in the glass.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: September 28, 2004
    Assignee: Battelle Memorial Institute
    Inventors: Chester L. Shepard, Bret D. Cannon, Mohammad A. Khaleel
  • Publication number: 20030076487
    Abstract: A non-destructive and non-contact method for measuring stress at the mid-plane of tempered glass plates that uses Bragg scattering from a pair of thermal gratings. The gratings are formed by parallel writing beams of laser light retroreflected through the glass. The polarization state of light from a delayed laser beam that scatters from both these thermal gratings is measured, and the change in polarization of the doubly scattered light with separation between the two gratings is correlated to the in-plane stress. Systems and techniques to take these measurements and control a glass manufacturing process are also disclosed.
    Type: Application
    Filed: August 3, 2001
    Publication date: April 24, 2003
    Inventors: Bret D. Cannon, Chester L. Shepard, Mohammad A. Khaleel
  • Publication number: 20030024269
    Abstract: Techniques for measuring the temperature at various locations through the thickness of glass products and to control the glass processing operation with the sensed temperature information are disclosed. Fluorescence emission of iron or cerium in glass is excited and imaged onto segmented detectors. Spatially resolved temperature data are obtained through correlation of the detected photoluminescence signal with location within the glass. In one form the detected photoluminescence is compared to detected scattered excitation light to determine temperature. Stress information is obtained from the time history of the temperature profile data and used to evaluate the quality of processed glass. A heating or cooling rate of the glass is also controlled to maintain a predetermined desired temperature profile in the glass.
    Type: Application
    Filed: May 30, 2001
    Publication date: February 6, 2003
    Inventors: Chester L. Shepard, Bret D. Cannon, Mohammad A. Khaleel