Patents by Inventor Charles A. Stolte

Charles A. Stolte 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).

  • Electrostatic deflection system for extending emitter life
    Patent number: 4155028
    Abstract: An electrostatic beam deflection system is provided for use in electron beam devices. In the present system several grids and an accelerating electrode are geometrically configured to direct positive ions away from an electron emitter surface. These positive ions are typically formed by interaction of the electrons emitted from the emitter surface with a gas ambient or with species adsorbed on the various grids and electrodes. Degradation of the electron emitter surface is thereby reduced, and the lifetime of the emitter concomitantly extended.
    Type: Grant
    Filed: March 17, 1978
    Date of Patent: May 15, 1979
    Assignee: Hewlett-Packard Company
    Inventor: Charles A. Stolte