Patents by Inventor Michael V. Gilbert

Michael V. Gilbert 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).

  • Die casting mold having lock rings for mounting an insert to a mandrel
    Patent number: 5558151
    Abstract: A cylinder liner for an internal combustion engine is held onto a detachable mandrel portion of a die by a plurality of split-ring-type compression springs. A sliplock on the ends of the split-ring spring limits the extent to which the spring can open or close.
    Type: Grant
    Filed: December 18, 1995
    Date of Patent: September 24, 1996
    Assignee: General Motors Corporation
    Inventors: Michael V. Gilbert, Bradley C. Menaugh