Patents by Inventor Mathew David Fletcher

Mathew David Fletcher 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).

  • Vibration testing apparatus and a method of vibration testing
    Patent number: 7051593
    Abstract: In order to provide a vibration testing apparatus which can have a large diameter without introducing undesirable rigid vibration modes, the vibration testing apparatus 1 comprises a support 2, at least one electromagnetic vibration generator 12 mounted on the support, the mounting comprising an annular body 5 and a head expander 10, the annular body being supported by bearings located around the periphery of the annular body 5.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: May 30, 2006
    Assignee: Ling Dynamic Systems, Inc.
    Inventor: Mathew David Fletcher