Patents by Inventor Chadwick E. Tuttle

Chadwick E. Tuttle 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 adjusting impeller clearance in a pump
    Patent number: 6893213
    Abstract: An impeller clearance adjustment system for providing for a desired clearance between an impeller and a housing by adjusting a spacing (10) between a thrust housing (11) and a frame (12) using a plurality of evenly-spaced shoulder screws (21) locked into a screwed-in position by respective lock nuts (22). A shoulder portion (21a) of each shoulder screw (21) keeps the thrust housing (11) from coming closer to the frame (12) than the adjusted spacing (10).
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: May 17, 2005
    Assignee: ITT Manufacturing Enterprises, Inc.
    Inventors: Jeremiah D. Quill, Chadwick E. Tuttle