Patents by Inventor Judy P. Nagel

Judy P. Nagel 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).

  • Corona charging element
    Patent number: 4227234
    Abstract: Corona discharge electrodes are coated with compressed dielectric materials. A corona discharge electrode is placed under tension and coated with a molten, viscous dielectric material, such as glass, while under tension. The dielectric material is allowed to cool so that the dielectric material becomes bonded securely to the corona discharge electrode. The tension upon the corona discharge electrode is released thereby causing a compression of the dielectric material adhered thereto. The resulting dielectric coated corona discharge electrode has a substantially improved life and delivers substantially uniform currents.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: October 7, 1980
    Assignee: Xerox Corporation
    Inventors: Donald A. Seanor, Judy P. Nagel