Patents by Inventor Nathan E. Harrison

Nathan E. Harrison 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).

  • Wide channel seal
    Patent number: 4162077
    Abstract: A wide channel seal for impeding the leakage of a gaseous medium between the rotor and stator of a rotary machine is disclosed. Various construction details including the use of a honeycomb facing material on the stator side of the channel and the use of a grooved cylindrical surface on the rotor side of the channel are discussed. A comparison in sealing effectiveness between a conventional wide channel seal and the wide channel seal of the present invention is made.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: July 24, 1979
    Assignee: United Technologies Corporation
    Inventors: David E. Crow, Nathan E. Harrison