Patents by Inventor Patricia E. Franzel

Patricia E. Franzel 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).

  • Two-piece cathode cup
    Patent number: 4825123
    Abstract: Disclosed is a cathode cup for X-ray tubes which is manufactured in two pieces so that the filament can be set before the upper channels are added, thereby, simplifying accurate setting of the filament and minimizing the likelihood of causing scratches or nicks in the outer surface of the cup.
    Type: Grant
    Filed: December 31, 1986
    Date of Patent: April 25, 1989
    Assignee: General Electric Company
    Inventors: Patricia E. Franzel, Charles S. Goldsworthy, Peter A. Dillenburg, James H. Hall, Jr.