Patents by Inventor Shahram Shirzad

Shahram Shirzad 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 and system for assembling and nondestructive testing of assemblies with composite components
    Patent number: 6698288
    Abstract: A method and system for nondestructively detecting and characterizing defects in articles, including assemblies that may include components formed of composite materials. The method entails vibrating an entire article/assembly to induce an oscillating strain in the article/assembly so that any flaws in the article/assembly are heated by localized friction, as would occur between opposing surface portions of a defect or an interface between components of the assembly. The article/assembly is then infrared imaged to detect any localized temperature rises associated with the localized friction at the defect or interface.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: March 2, 2004
    Assignee: General Electric Company
    Inventors: Shahram Shirzad, John Ruediger Mader Viertl
  • Method and system for assembling and nondestructive testing of assemblies with composite components
    Publication number: 20030106376
    Abstract: A method and system for nondestructively detecting and characterizing defects in articles, including assemblies that may include components formed of composite materials. The method entails vibrating an entire article/assembly to induce an oscillating strain in the article/assembly so that any flaws in the article/assembly are heated by localized friction, as would occur between opposing surface portions of a defect or an interface between components of the assembly. The article/assembly is then infrared imaged to detect any localized temperature rises associated with the localized friction at the defect or interface.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 12, 2003
    Inventors: Shahram Shirzad, John Ruediger Mader Viertl