Patents by Inventor James Chatterley

James Chatterley 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 apparatus for hydroforming multiple components with reduced press loading
    Patent number: 6386009
    Abstract: Apparatus and method for hydroforming multiple components simultaneously with a smaller capacity press than would be possible using conventional hydroforming methods and apparatus. Die pairs are positioned with multiple die cavities in series so that the separating force transmitted to a press holding the dies equals the force developed in a single die cavity, even though multiple components are being formed in the die cavities.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: May 14, 2002
    Assignee: General Motors Corporation
    Inventors: Chi-Mou Ni, James Chatterley