Patents by Inventor Clive H. Buckberry

Clive H. Buckberry 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).

  • Photoelastic stress analysis
    Patent number: 5400131
    Abstract: Polarized light from a polarizer 12 is passed through a stressed birefringent object 14 and an analyser 16 to produce a fringe pattern representative of the stress in the object 14. The fringe pattern is observed with a CCD camera 18 and intensity information of the pattern is input to a computer 22. The process is repeated for at least two wavelengths of light and the information for the different wavelengths is combined to form a stress map of the object 14 for display on a VDU 24.
    Type: Grant
    Filed: March 3, 1993
    Date of Patent: March 21, 1995
    Assignee: Rover Group Limited
    Inventors: Barrie C. Stockley, Clive H. Buckberry