Patents by Inventor Christopher J. Lichtle

Christopher J. Lichtle 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 the manufacture of unitary complex cores
    Patent number: 5201811
    Abstract: A method and apparatus for the manufacturing in one operation of a complex core, such as a core for manufacturing a double-volute turbo-charger housing. The apparatus includes two separable core box halves and a segmented mandrel removably disposed between the two separable core box halves. The mandrel has two removable segments which allow for the removal of a completed core.
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: April 13, 1993
    Assignee: The Hamilton Foundry & Machine Co.
    Inventors: Donald R. Lebold, Christopher J. Lichtle