Patents by Inventor Daniel L. Van Hoogten

Daniel L. Van Hoogten 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).

  • Developing unit for thoroughly supplying mixed toner in an electrostatographic printer
    Patent number: 5617189
    Abstract: A developing unit including a housing having an opening defining a developing zone, an applicator for applying particulate developer through the opening towards an electrostatographic image to be developed, and a paddle wheel for agitating developer within the housing, for scooping up developer from within the housing and projecting scooped-up developer towards the applicator. A hopper, located outside the width of the development zone supplies toner to the housing, and a primary spiral screw conveys developer from the hopper across the width of the development zone in one direction, while a secondary spiral screw receives developer from the primary spiral screw and conveys developer across the width of the development zone in an opposite direction. A passageway outside the width of the development zone enables the return of developer from the secondary spiral screw to the primary spiral screw.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: April 1, 1997
    Assignee: Xeikon N.V.
    Inventors: Etienne M. De Cock, Lucien A. De Schamphelaere, Bart J. Van Dessel, Daniel L. Van Hoogten