Patents by Inventor Michael L. Raby

Michael L. Raby 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).

  • Hydroform die tube holding assembly and method of making same
    Patent number: 7140217
    Abstract: A hydroform die tube holding assembly and method of using same includes at least one seal unit for sealing an end of a tube. The hydroformed die tube holding assembly also includes a seal unit elevator for attachment to a lower die half to operatively support the at least one seal unit. The hydroformed die tube holding assembly further includes at least one upper gas spring for attachment to an upper die half to engage, the seal unit elevator to drive the seal unit elevator downward prior to the upper die half engaging the tube.
    Type: Grant
    Filed: July 27, 2005
    Date of Patent: November 28, 2006
    Assignee: GM Global Technology Operations, Inc.
    Inventors: Kevin R. Marks, Michael L. Raby