Patents by Inventor Gene Dupre

Gene Dupre 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).

  • Multiple part die casting die
    Patent number: 5915453
    Abstract: A die casting die particularly adapted for casting of parts with protruding heat sink pins. The die ejector half insert is made of two distinct pieces. One piece, the ejector cavity insert, includes through holes which define the heat sink pin-forming cavities. These cavities are closed by a combination of the second piece of the ejector half insert, and the ejector pins. The result is a more uniform part with less flashing, which ejects easily from the die. There is also less die wear associated with the ejector pins.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: June 29, 1999
    Assignee: Kennedy Die Casting, Inc.
    Inventors: Donald Tremblay, Gene Dupre, Paul Kennedy, Joseph C. Deliso