Patents by Inventor David R. Huddle

David R. Huddle 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).

  • Threading tool and method
    Patent number: 4409868
    Abstract: A threading tool is disclosed featuring the combined utilization of a multi-toothed thread chaser insert with a single point indexable thread chaser insert. In generating a desired thread form, successive teeth of the multi-toothed chaser perform the initial cutting passes on a workpiece, while the tooth of the single tooth chaser performs the final finishing cutting operation.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: October 18, 1983
    Assignee: The Valeron Corporation
    Inventors: David R. Huddle, Robert L. Coleman