Patents by Inventor Jeffrey A. Jahn

Jeffrey A. Jahn 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).

  • Cutter insert mounting and method
    Patent number: 6659694
    Abstract: A cutter head having blade unit mounting cavities with spaced-apart mounting points and a blade unit. Each blade unit has at least one blade edge and is configured to have the blade edge disposed to align with the blade edge of another blade unit each in other mounting cavities. This forms a substantially helical blade when each blade unit is secured adjacent at least one of the spaced-apart mounting points.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: December 9, 2003
    Assignee: North American Products Corporation
    Inventors: Joey L. Asbell, Donald R. Franchville, Jeffrey A. Jahn