Patents by Inventor G. Richard Herrick

G. Richard Herrick 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).

  • Composite floating element thrust bearing
    Patent number: 4410284
    Abstract: A rolling cutter drill bit with at least one downwardly extending leg which supports a cantilevered bearing shaft thereon is disclosed. A cutter cone is rotatably mounted on the bearing shaft by radial bearing means and by axial bearing means. A radially disposed thrust washer is positioned between the journal and the cone, the washer further defining a lubricant transferring means in each radially disposed side of the thrust washer to assure adequate lubrication of the roller cone on the journal bearing.
    Type: Grant
    Filed: April 22, 1982
    Date of Patent: October 18, 1983
    Assignee: Smith International, Inc.
    Inventor: G. Richard Herrick