Patents by Inventor Dennis N. Stansifer

Dennis N. Stansifer 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).

  • Means for locking threaded nozzles to a fire hydrant
    Patent number: 4141574
    Abstract: A fire hydrant of either the "dry" barrel type or the "wet" barrel type having an improved means of locking a replaceable hydrant nozzle to the hydrant barrel. The means for locking the hydrant nozzle to the boss of the hydrant barrel prevents removal of the nozzle by unauthorized personnel and it includes an elongated rod member having teeth thereon extending generally transverse of a longitudinal axis of the rod member, the rod member being wedged in a particular manner between the hydrant barrel and the hydrant nozzle after the hydrant nozzle has been inserted therein to a predetermined torque.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: February 27, 1979
    Assignee: Mueller Co.
    Inventors: Dennis N. Stansifer, Ralph W. Henderson