Patents by Inventor Paulus F. W. Eijkman

Paulus F. W. Eijkman 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).

  • Nozzle configuration for an ink-jet printer and process for operating such a nozzle configuration
    Patent number: 5142297
    Abstract: Described is a nozzle configuration for an ink-jet printer in which the unshielded intervals between the drop-formation nozzle, the charging electrode and the deflection plates are chosen to be maximally 0.1-2 mm while further in the passage of the charging electrode a discharge aperture is present which connects to a channel for removing ink or other medium by suction.Also is described a process for operating said nozzle configuration in which during starting and/or stopping thereof medium is transported through the channels connecting to the charging electrode.The medium may be air and/or a protective fluid.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: August 25, 1992
    Assignee: Stork X-Cel B.V.
    Inventors: Paulus F. W. Eijkman, Wilhelmus J. C. Prinsen, Jacobus H. Diederen