Patents by Inventor David Henry Mitchell

David Henry Mitchell 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).

  • Anti-rotation mechanism for a high pressure fuel supply pipe in a common rail fuel system
    Patent number: 6199539
    Abstract: A circular cross-sectional fuel pipe can be prevented from undesired rotation in an engine cylinder head, by a key-key slot combination having a relatively small radial dimension. The key slot is formed by a groove formed in a cylindrical sleeve that is press fit in a counterbore machined in the cylinder head. The mating key can be a ball, or pin, or bar press fit into a side surface of the fuel pipe.
    Type: Grant
    Filed: June 22, 2000
    Date of Patent: March 13, 2001
    Assignee: Detroit Diesel Corporation
    Inventors: Samuel Pearlman, James Edward McCarthy, Jr., David Henry Mitchell, Ronald Michael Tkac